ROOTECH Accura 2300S/2350 User guide

ACCURA 2300S/2350

Distribution Panel Digital Power Meter/Power Measuring Module

Actually makes possible enterprise energy management

User Guide[English]

Revision 1.20 2016/12/22

(장치 N단자전압)

Distribution Panel Digital Power Meter

Accura 2300S

Accura 2300S rear

Three Phase Power Measuring Module

Three Phase Terminal

Single Phase Power Measuring Module

Single Phase Terminal

Accura 2350-3P-250A-105

TM-3P-105

Accura 2350-1P-250A-105

TM-1P-105

Accura 2350-3P-125A-90

TM-3P-90

Accura 2350-1P-125A-60

TM-1P-60

Accura 2350-3P-100A-75

TM-3P-75L

Accura 2350-1P-100A-50

TM-1P-50L

Accura 2350-3P-60A-75

TM-3P-75

Accura 2350-1P-60A-50

TM-1P-50

Accura 2350-3P-CT5A-75

Accura 2350-1PSH-50A-35

Accura 2350-1PSH-30A-35

Split-core Three Phase Power Measuring

Module

Split-core Single Phase Power

Measuring Module

Split-core Single Phase Single Hole Power Measuring

Module

Accura 2350-3PSC-250A-105

Accura 2350-1PSC-250A-105

Accura 2350-1PSCSH-800A

Accura 2350-3PSC-125A-90

Accura 2350-1PSC-125A-60

Accura 2350-1PSCSH-630A

Accura 2350-3PSC-60A-75

Accura 2350-1PSC-60A-50

Accura 2350-1PSCSH-400A

Page 4

Special-purpose Module

Accura 2350-DO

Accura 2350-VDC

Accura 2350-IDC

Accura 2350-GAS

Accura 2350-TEMP

Accura 2350-GW

Accura 2300S/2350 User Guide

Notice

Page 5

Notice

Symbol

Caution

Indicates the presence of dangerous voltage which can cause severe injury or death

to persons if proper precautions are not followed.

Warning

Alerts the user to the presence of hazards which can cause somewhat injury to

persons, damage to property or damage to the device itself, if proper precautions

are not followed.

Note

Indicates the user’s attention to installation, operating and maintenance

instructions.

Indicates alternative voltage or current.

Indicates direct voltage or current.

Installation Considerations

Installation and operation of Accura 2300S/2350 should be performed only by qualified, competent

personnel that have appropriate training and experience with high voltage and current devices.

Caution

Failure to observe the following instructions may result in severe injury or death.

 During normal operation of the Accura 2300S/2350, hazardous voltages are present on its terminal strips of

voltages input and power.

 Standard safety precautions are as followed while performing any installation or service work[removing PT fuses,

shorting CT secondaries, etc].

 Do not access to terminal strips of the Accura 2300S/2350 after installation.

Notice

Accura 2300S/2350 User Guide

Page 6

Warning

Observe the following instructions, or permanent damage to the meter may occur.

 Do not apply Accura 2300S/2350 to voltages and currents that exceed Input ratings of PT and CT

 To use device in the other way than specified by manufacturer can cause severe damage.

 Connect ground terminal to the earth ground to protect device from noise and surge.

 Terminal screw torque is as followed.

- barrier-type voltage terminal:1.35Nm[1.00 ft-lbf] max.

- barrier-type digital inputs/digital output terminal:0.90Nm[0.66 ft.lbf] max.

Limitation of Liability

Rootech Inc. reserves the right to make changes in the device specifications shown in this User Guide

without notice. Rootech Inc. advises customers to obtain the latest specifications of device before giving

orders to confirm that the information being relied on by the customer is up to date.

Inc. applications assistance, customer’s system design, or infringement of patents or copyrights of

third parties by or arsing from the use of devices described herein.

Except to the extent prohibited by applicable law, under no circumstances shall Rootech Inc. be liable

for consequential damages sustained in connection with said product and Rootech Inc. neither

assumes nor authorizes any representative or other person any obligation or liability other than such

as is expressly set forth herein.

Accura EMeter, Accura 2300/2350, Accura 2300S/2350, Accura 2500, Accura 3300S/3300, Accura

3500S/3500, Accura 3550S/3550, Accura 3700, Accura 5500, Accura 7500 are trademarks of

Rootech Inc.

The information contained in this document is believed to be accurate at the time of publication,

however, Rootech Inc. assumes no responsibility for any errors which may appear here and reserves

the right to make changes without notice.

.

Accura 2300/2350 Communucation User Guide

Notice

Page 7

Standard Compliance

MEASURING EQUIPMENT

35DX

E258934

MSIP-REM-RTE-ACCURA 2300S

QMS-1347

KAB-QC-09

Revision History

Accura 2300S/2350 User Guide

Page 8

Revision History

The following versions of the Accura 2300S/2350 User Guide have been released.

Revision

Date

Description

Revision 1.00

2014. 02. 14

Initial draft

Revision 1.10

2014. 12. 23

Configuration and measurement description added.

Special-purpose module description

[Accura 2350-GAS/GW/DO/VDC/IDC/TEMP] added.

Revision 1.11

2015. 05. 21

Standard compliance updated

Revision 1.12

2015. 11. 19

Speical-purpose module arrangement modified.

Revision 1.20

2016. 12. 22

Typing error corrected, bookmark added, power event added

Accura 2300S/2350 User Guide

Contents

Page 9

Warranty Information

For products and software that are sold or licensed by Rootech Inc. during the period from the date

of receipt by you until the present, Rootech warrants only to the original purchaser

The purchased products shall be substantially free from material defects in material and workmanship

by Rootech for two years from the date receipt by you.

The software itself is provided “as is” without any warranty of any kind.

Limitation of Warranty

These limited Warranties shall not apply to any product that has been subject to alteration, accident,

misuse, abuse, neglect or failure to exactly follow Power Measurement's instructions for operation and

maintenance.

In order for the original purchaser to make a claim under the warranties described above, the original

purchaser must promptly contact Rootech headquarter. After receiving such notice, Rootech may either

in Rootech’s sole discretion, examine the product at the original purchaser’s site or issue shipping

instructions to the original purchaser to return the relevant product to Rootech for examination at the

original purchaser’s expense, transportation charges prepaid.

If after examining the product Rootech reasonably confirms that such examined product does not

meet the warranties, then the original purchaser’s sole remedy and Rootech’s sole obligation or

liability shall be, at Rootech’s option, to repair, replace or refund the price paid for that product.

Regardless of whether any remedy set forth herein fails of its essential purpose, except to the extent

the following limitation is prohibited by applicable law, Rootech shall not, in any event or under any

legal claim or theory, be liable to the original purchaser or any other person or entity for special,

indirect, incidental, punitive, liquidated, special or consequential damages whatsoever with respect to

any purchased product, including, without limitation, business interruption, loss of use, profit or

revenue, even if Rootech has been advised of the possibility of such damages. To the extent that a

limitation or exclusion of consequential damages are prohibited by app

licable law, then Rootech’s liability shall be limited to twice the amount of the relevant purchased

product.

Rootech shall not be liable for any claim- other than a claim solely for the breach of one of the above

Contents

Accura 2300S/2350 User Guide

Page 10

warranties that is made in accordance with the above described procedures- made by the original

purchaser, its employees, agents, or contractors for any loss, damage, or expense incurred due to,

caused by, or related to any purchased product

Any technical assistance provided by Rootech's personnel or representatives in system design shall be

deemed to be a proposal and not a recommendation. The responsibility for determining the feasibility

of such proposals rests with the original purchaser and should be tested by the original purchaser.

It is the original purchaser’s responsibility to determine the suitability of any product and associated

documentation for its purposes. The original purchaser acknowledges that 100% "up" time is not

realizable because of possible hardware or software defects. The original purchaser recognizes that

such defects and failures may cause inaccuracies or malfunctions.

Only the terms expressed in these limited Warranties shall apply and no distributor, corporation or

other entity, individual or employee of Rootech or any other entity is authorized to amend, modify or

extend the Warranties in any way.

Accura 2300S/2350 User Guide

Contents

Page 11

Contents

Chapter 1 Introduction .................................................................................................................... 19

Overview ........................................................................................................................................ 19

Application ...................................................................................................................................... 22

Device Lineup.................................................................................................................................. 23

Distribution Panel Digital Meter/Power Measuring Module ........................................................... 23

Special-Purpose Module ............................................................................................................ 24

Installation Example .................................................................................................................. 25

Features .................................................................................................................................... 27

Chapter 2 Installation ...................................................................................................................... 33

Environmental Conditions ................................................................................................................ 33

Before you begin ............................................................................................................................. 34

Meter Overview ......................................................................................................................... 34

Components ............................................................................................................................. 36

Dimension ................................................................................................................................ 38

Installation Single Diagram ........................................................................................................ 44

Step 1: Mounting ............................................................................................................................. 47

Accura 2300S Mounting ............................................................................................................ 47

Accura 2350-3P Three Phase Power Measuring Module Mounting ............................................... 48

Accura 2350-1P Single Phase Power Measuring Module Mounting .............................................. 53

Accura 2350-3PSC Split-core Three Phase Power Measuring Module Mounting ............................ 58

Accura 2350-1PSC Split-core Single Phase Power Measuring Module Mounting ........................... 63

Accura 2350-1PSCSH Split-core Single Phase Single Hole Power Measuring Module Mounting ..... 68

Step 2: Accura 2300S Wiring ........................................................................................................... 72

Accura 2300S Voltage Wiring .................................................................................................... 72

Accura 2300S Digital Input/Output Wiring ................................................................................. 77

Step 3: Accura 2350 Through-hole Wiring ........................................................................................ 80

Accura 2350 Power Measuring Module Through-hole Wiring ...................................................... 80

Accura 2350 Single Phase Single Hole Power Measuring Module Current Through-hole Wiring .... 85

Step 4: Accura 2300S/2350 Internal Communication[6C Telephone Line] .......................................... 88

Step 5: Accura 2300S External Communication[Ethernet, RS485] ....................................................... 90

Ethernet Communication ........................................................................................................... 90

RS485 Communication .............................................................................................................. 92

Step 6: Accura 2300S Power Supply and Ground .............................................................................. 93

Power Supply............................................................................................................................. 93

Contents

Accura 2300S/2350 User Guide

Page 12

Ground Terminal ....................................................................................................................... 93

Chapter 3 Accura 2350 Operation/Setup .......................................................................................... 94

Operation Mode ....................................................................................................................... 94

Button Function ......................................................................................................................... 94

Accura 2350-3P[3PSC] Three Phase Power Measuring Module .......................................................... 95

Application Model ..................................................................................................................... 95

Display Mode ............................................................................................................................ 96

Setup Mode .............................................................................................................................. 98

Accura 2350-1P[1PSC] Single Phase Power Measuring Module ........................................................ 108

Application Model ................................................................................................................... 108

Display Mode .......................................................................................................................... 108

Setup Mode ............................................................................................................................ 110

Accura 2350-1PSCSH Split-core Single Phase Single Hole Power Measuring Module ........................ 119

Application Model ................................................................................................................... 119

Display Mode .......................................................................................................................... 119

Setup Mode ............................................................................................................................ 121

Chapter 4 Accura 2300S Operation/Setup ...................................................................................... 131

Operation Mode ..................................................................................................................... 131

LED ........................................................................................................................................ 132

Button Function ....................................................................................................................... 132

Display Mode ................................................................................................................................ 134

Front Display ........................................................................................................................... 134

Accura 2350 Module ID Selection ............................................................................................ 137

Display Screen ........................................................................................................................ 138

Voltage/Current/Power/Energy[V∙I∙P∙E]...................................................................................... 139

Voltage/Frequency[V∙FREQ] ..................................................................................................... 140

Current[I] ................................................................................................................................ 140

Power/Power Factor[P∙PF] ......................................................................................................... 141

Demand[DEMAND] ................................................................................................................. 141

Active Energy[ENERGY] ............................................................................................................ 142

Leakage Current[MODULE] ..................................................................................................... 142

RSTP Information[INFO] ........................................................................................................... 143

Temperature/Time[ETC] ........................................................................................................... 144

Setup Mode................................................................................................................................... 145

Setup Mode Display Screen ...................................................................................................... 147

Meter ...................................................................................................................................... 148

Accura 2300S/2350 User Guide

Contents

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Event[EVENT] .......................................................................................................................... 154

RS485 Communication[COMM] ............................................................................................... 165

Ethernet Communication[NETWORK] ....................................................................................... 166

Reset[RESET] ............................................................................................................................ 169

Display[DISPLAY] ..................................................................................................................... 170

Accura 2350 Module ID[MODULE] .......................................................................................... 172

Accura 2350-1P Three Phase Device Group[MODULE] ............................................................. 177

Information[INFO] ................................................................................................................... 180

Digital Input/Output[ETC] ........................................................................................................ 181

Event Log Mode............................................................................................................................. 186

Start Event & End Event ............................................................................................................ 186

Start Event Alarm On ............................................................................................................... 186

Start Event Alarm Off ............................................................................................................... 186

Button Function ....................................................................................................................... 187

Event Log Number Assignment ................................................................................................. 188

Dip Event Log .......................................................................................................................... 189

Swell Event Log ....................................................................................................................... 189

Fuse Fail Event Log .................................................................................................................. 190

Temperature Event Log ............................................................................................................ 191

Current Event Log .................................................................................................................... 191

Leakage Current Event Log ...................................................................................................... 192

Demand Current Event Log ...................................................................................................... 193

Required Configuration Step .......................................................................................................... 194

Step 1: Accura 2300S Connection, PT Rating ............................................................................ 194

Step 2: Accura 2350 Module ID Auto-Assignment/Update ........................................................ 196

Step 3: Accura 2300S Ethernet ................................................................................................. 199

Chapter 5 Measurement Description ............................................................................................... 200

General Measurement Factor ......................................................................................................... 200

Measurement Event Factor ............................................................................................................. 203

Measurement for Voltage Wiring .................................................................................................... 204

Three Phase Four Wires ........................................................................................................... 204

Three Phase Three Wires ......................................................................................................... 205

Single Phase Three Wires ......................................................................................................... 207

Single Phase Two Wires............................................................................................................ 208

Power Measurement for Each Phase ............................................................................................... 209

Method 1[Fundamental Calculation] ........................................................................................ 209

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Accura 2300S/2350 User Guide

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Method 2[Harmonic Calculation] ............................................................................................. 209

Three Phase Total Power Measurement ........................................................................................... 210

Method 1[Vector Sum] ............................................................................................................. 210

Method 2[Arithmetic Sum] ........................................................................................................ 211

Power Factor[PF] Measurement ....................................................................................................... 212

Current Phase LEAD/LAG Measurement ......................................................................................... 212

Dip[Sag]/Swell Measurement ......................................................................................................... 213

Half-cycle Refreshed 1-cycle RMS ............................................................................................. 213

Dip[Sag]/Swell Detection ......................................................................................................... 213

Demand Measurement .................................................................................................................. 214

Demand ................................................................................................................................. 214

Prediction Demand .................................................................................................................. 214

Unbalance[NEMA MG1] ................................................................................................................ 215

Line-Neutral Voltage Unbalance .............................................................................................. 215

Line-Line Voltage Unbalance.................................................................................................... 215

Sequence Unbalance ..................................................................................................................... 215

Negative Sequence Unbalance Ratio ........................................................................................ 216

Zero Sequence Unbalance Ratio .............................................................................................. 216

ZCT Leakage Current Measurement ............................................................................................... 216

“Half-cycle RMS” Measurement[Default] ................................................................................... 216

“One-cycle Fundamental Wave RMS” Measurement .................................................................. 216

Aggregation .................................................................................................................................. 217

Fixed aggregation ................................................................................................................... 217

Customed aggregation ............................................................................................................ 218

Event aggregation ................................................................................................................... 219

Aggregation Data Collection .................................................................................................... 219

APPENDIX A Specification .............................................................................................................. 220

APPENDIX B Standard Compliance ................................................................................................. 225

APPENDIX C Accuracy/Reliability .................................................................................................... 226

Accuracy ................................................................................................................................. 226

Reliability ................................................................................................................................ 227

APPENDIX D Ordering Information ................................................................................................. 228

Distribution Panel Digital Power Meter/Power Measuring Module ............................................... 228

Special-Purpose Module .......................................................................................................... 229

INDEX.......................................................................................................................................... 230

Accura 2300S/2350 User Guide

Contents

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Figures

Fig 1.1 Accura 2350-3P Through-hole Currrent Sensing Structure ............................................... 20

Fig 1.2 Accura 2350-3P[1P] Length Compatibility with MCCB/ELB Rating .................................... 21

Fig 1.3 Accura 2350-3PSC[1PSC] Split-core Three Phase[Single Phase] Power Measuring Module

Installation ................................................................................................................................ 21

Fig 1.4 Accura 2300S/2350-3P[1P] Power Measuring Module Installation Example ...................... 25

Fig 1.5 Split-core Power Measuring Module Installation Example ................................................. 26

Fig 2.1 Accura 2300S Front ....................................................................................................... 34

Fig 2.2 Accura 2300S Side ........................................................................................................ 34

Fig 2.3 Accura 2300S Rear ........................................................................................................ 34

Fig 2.4 Accura 2350-3P[1P] Power Measuring Module ................................................................ 35

Fig 2.5 Accura 2350-3PSC[1PSC, 1PSCSH] Split-core Power Measuring Module........................... 35

Fig 2.6 Accura 2300S Components ............................................................................................ 36

Fig 2.7 Accura 2350-3P Three Phase Power Measuring Module Components ............................... 36

Fig 2.8 Accura 2350-1P Single Phase Power Measuring Module Components .............................. 36

Fig 2.9 Accura 2350-1PSH Single Phase Single Hole Power Measuring Module Components ........ 36

Fig 2.10 Accura 2350-1PSC Split-core Single Phase Power Measuring Module Component .......... 37

Fig 2.11 Accura 2350-1PSCSH Split-core Single Phase Single Hole Power Measuring Module

Component............................................................................................................................... 37

Fig 2.12 TM-3P Three Phase Terminal Component ...................................................................... 37

Fig 2.13 TM-1P Single Phase Terminal Component ..................................................................... 37

Fig 2.14 Accura 2300S Front Dimension .................................................................................... 38

Fig 2.15 Accura 2300S Side Dimension ..................................................................................... 38

Fig 2.16 Accura 2300S Rear Dimension ..................................................................................... 38

Fig 2.17 Accura 2350-3P Three Phase Power Measuring Module Dimension ................................ 39

Fig 2.18 TM-3P Three Phase Terminal Dimension ....................................................................... 39

Fig 2.19 Accura 2350-1P Single Phase Power Measuring Module ................................................ 40

Fig 2.20 TM-1P Single Phase Terminal ........................................................................................ 40

Fig 2.21 Accura 2350-1PSH Single Phase Single Hole Power Measuring Module .......................... 41

Fig 2.22 Accura 2350-3PSC Split-core Three Phase Power Measuring Module .............................. 41

Fig 2.23 Accura 2350-1PSC Split-core Single Phase Power Measuring Module ............................. 42

Fig 2.24 Accura 2350-1PSCSH Split-core Single Phase Single Hole Power Measuring Module ....... 42

Fig 2.25 Accura 2300S/2350-3P[1P] Power Measuring Module Installation Diagram.................... 44

Fig 2.26 Accura 2300S/2350-3PSC[1PSC, 1PSCSH] Power Measuring Module Installation Diagram

................................................................................................................................................ 45

Contents

Accura 2300S/2350 User Guide

Page 16

Fig 2.27 Accura 2300S Mounting[ANSI 4’’] ................................................................................ 47

Fig 2.28 Accura 2300S Mounting[DIN96] ................................................................................... 47

Fig 2.29 Accura 2350-3P Three Phase Power Measuring Module Mounting .................................. 48

Fig 2.30 Accura 2350-3P Three Phase Power Measuring Module/Terminal Cutout ........................ 49

Fig 2.31 Accura 2350-3P Three Phase Power Measuring Module Mounting Plate/Terminal Cutout 51

Fig 2.32 Accura 2350-1P Single Phase Power Measuring Panel Module Mounting ........................ 53

Fig 2.33 Accura 2350-1P Single Phase Power Measuring Module/Terminal Cutout ....................... 54

Fig 2.34 Accura 2350-1P Single Phase Power Measuring Module Mounting Plate/Terminal Cutout 56

Fig 2.35 Accura 2350-3PSC Split-core Power Measuring Module New Installation ........................ 58

Fig 2.36 Accura 2350-3PSC Split-core Three Phase Power Measuring Module Cutout ................... 59

Fig 2.37 Accura 2350-3PSC Mounting Plate Cutout .................................................................... 61

Fig 2.38 Accura 2350-3PSC Split-core Power Measuring Module Remodeling Installation ............. 62

Fig 2.39 Accura 2350-1PSC Split-core Power Measuring Module New Installation ........................ 63

Fig 2.40 Accura 2350-1PSC Split-core Single Phase Power Measuring Module Cutout .................. 64

Fig 2.41 Accura 2350-1PSC Mounting Plate Cutout .................................................................... 66

Fig 2.42 Accura 2350-1PSC Split-core Power Measuring Module Remodeling Installation ............. 67

Fig 2.43 Accura 2350-1PSCSH Split-core Power Measuring Module New Installation.................... 68

Fig 2.44 Accura 2350-1PSCSH Split-core Power Measuring Module Cutout.................................. 69

Fig 2.45 Accura 2350-1PSCSH Split-core Power Measuring Module Cutout.................................. 70

Fig 2.46 Accura 2350-1PSCSH Split-core Power Measuring Module Remodeling Installation ......... 71

Fig 2.47 Accura 2300S Voltage Wiring ....................................................................................... 72

Fig 2.48 Three Phase 4 Wires, Direct Wiring ............................................................................... 73

Fig 2.49 Three Phase 4 Wires, 3PT Wiring .................................................................................. 73

Fig 2.50 Three Phase 3 Wires, Direct Wiring ............................................................................... 74

Fig 2.51 Three Phase 3 Wires, 2PT Wiring .................................................................................. 74

Fig 2.52 Single Phase 3 Wires, Direct Wiring .............................................................................. 75

Fig 2.53 Single Phase 3 Wires, 2PT Wiring ................................................................................. 75

Fig 2.54 Single Phase 2 Wires, Direct Wiring .............................................................................. 76

Fig 2.55 Single Phase 2 Wires, 1PT Wiring ................................................................................. 76

Fig 2.56 Accura 2300S Digital Input/Output Channel ................................................................. 77

Fig 2.57 Digital Input ................................................................................................................ 78

Fig 2.58 DC Relay Application ................................................................................................... 79

Fig 2.59 AC Relay Application .................................................................................................... 79

Fig 2.60 Three Phase 4 Wires/3 Wires, Direct Through-hole Wiring ............................................. 82

Fig 2.61 Three Phase 4 Wires/3 wires, 3CT Through-hole Wiring ................................................ 82

Fig 2.62 Three Phase 3 wires, 2CT Through-hole Wiring ............................................................. 83

Accura 2300S/2350 User Guide

Contents

Page 17

Fig 2.63 Single Phase LN[Line to Neutral] Through-hole Wiring ................................................... 84

Fig 2.64 Single Phase LL[Line to Line] Through-hole Wiring ......................................................... 84

Fig 2.65 Three Phase 4 Wires/3 Wires, Single hole 3 Module Through-hole Wiring ...................... 86

Fig 2.66 Three Phase 3 Wires, Single hole 2 Module Through-hole Wiring ................................... 86

Fig 2.67 Single Phase LN[Line to Neutral] Single hole Module Through-hole Wiring ..................... 87

Fig 2.68 Single Phase LL[Line to Line] Single hole Module Through-hole Wiring ........................... 87

Fig 2.69 Accura 2300S/2350 Combination Example of Communication ..................................... 88

Fig 2.70 Accura 2300S Ethernet Communication Port ................................................................. 90

Fig 2.71 Accura 2300S Ethernet Communication ........................................................................ 91

Fig 2.72 Accura 2300S RS485 Communication .......................................................................... 92

Fig 2.73 Accura 2300S RS485 Communication Connection ........................................................ 92

Fig 2.74 Accura 2300S Power Supply ......................................................................................... 93

Fig 4.1 Accura 2300S Front ..................................................................................................... 131

Fig 4.2 Display Mode .............................................................................................................. 132

Fig 4.3 Setup Mode ................................................................................................................. 133

Fig 4.4 Event Log Mode ........................................................................................................... 133

Fig 4.5 Accura 2300S Front Overview ...................................................................................... 134

Fig 4.6 Accura 2300S Temperature Sensor ............................................................................... 136

Fig 4.7 Accura 2350 Module ID Selection at Upper Part of LCD Screen ...................................... 137

Fig 4.8 Voltage/Current/Power/Energy Display Screen .............................................................. 139

Fig 4.9 Voltage/Current/Power/Energy for Each Phase Display Screen ....................................... 139

Fig 4.10 Line to Line Voltage Display Screen ............................................................................. 140

Fig 4.11 Line to Neutral Current Display Screen ........................................................................ 140

Fig 4.12 Power Display Screen ................................................................................................. 141

Fig 4.13 Demand Active Power Display Screen ......................................................................... 141

Fig 4.14 Net Energy Display Screen.......................................................................................... 142

Fig 4.15 Leakage Current Display Screen ................................................................................. 142

Fig 4.16 Ethernet Conncetion Status Display Screen .................................................................. 143

Fig 4.17 Temperature around Accura 2300S Display Screen ...................................................... 144

Fig 4.18 Dip Event Configuration[Three Phase 3 Wires] ............................................................. 155

Fig 4.19 Dip Event Configuration[Three Phase 3 Wires] ............................................................. 155

Fig 4.20 Swell Event Configuration[Three phase 4 wires] ........................................................... 157

Fig 4.21 Swell Event Configuration[Three phase 3 wires] ........................................................... 157

Fig 4.22 Dip[Sag] Event Alarm Screen ...................................................................................... 186

Fig 4.23 Swell Event Alarm Screen ........................................................................................... 186

Fig 4.24 Event Log Number ..................................................................................................... 188

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Accura 2300S/2350 User Guide

Page 18

Fig 5.1 3PT, 3CT Wiring, Wiring Mode = 3P4U (3P4W Wiring) .................................................. 204

Fig 5.2 2PT, 3CT Wiring, Wiring Mode = 3P3U (3P3W Wiring) .................................................. 205

Fig 5.3 2PT, 2CT Wiring, Wiring Mode = 3P3U (3P3W Wiring) .................................................. 205

Fig 5.4 2PT, 2CT Wiring, Wiring Mode = 1P3U (1P3W Wiring) .................................................. 207

Fig 5.5 1PT, 1CT Wiring, Wiring Mode = 1P2U (1P2W Wiring) .................................................. 208

Fig 5.6 Vector Diagram for Vector Sum Apparent Power ............................................................ 210

Fig 5.7 Vector Diagram for Arithmetic Sum Apparent Power ...................................................... 211

Fig 5.8 Power Sign and Current Phase LEAD/LAG ..................................................................... 212

Fig 5.9 Half-cycle Refreshed 1-cycle RMS Calculation ................................................................ 213

Fig 5.10 Voltage Dip[Sag] Detection ......................................................................................... 213

Fig 5.11 Demand Calculation .................................................................................................. 214

Fig 5.12 Prediction Demand Calculation .................................................................................. 214

Fig 5.13 Symmetrical Components ........................................................................................... 215

Fig 5.14 Aggregation Process .................................................................................................. 217

Accura 2300S/2350 User Guide

Chapter 1 Introduction

Page 19

Chapter 1 Introduction

Overview

Energy Management Paradigm Shift from Main Load to Branch Load

Until now for stable power supply, energy management has been used for a long time on orientation

of mainly switchgear panels such as main feeder, ACB and VCB. however at the time of both the sharp

increase of energy cost and preparations for CO2 emission reduction policy, demand of energy

management on orientation of distribution panels which comprise incoming feeder and the branch

loads[or circuits] is increasingly growing in manufacturing plants, IDC center, building and etc.

Limit of Application of the existing Digital Power Meter to Distribution Panel

To apply the digital power meter which is long used in the existing switchgear panel to distribution

panel has had the limit caused by narrow space, hazardous wiring of voltage and current, and high

installation cost. This fundamentally makes it difficult for energy management supervisor to access to

the energy information of branch loads in distribution panel.

Distribution Panel Digital Power Meter Speicalized for Branch Load Management

Distribution panel digital power meter comprises both Apccura 2300S[digital power meter] which is

mounted on front of distribution panel, and Accura 2350[power measuring module] which is mounted

in branch loads inside the panel. Accura 2300S collects power data from several Accura 2350s on

RS485 communication and displays only measurements of one Accura 2350 selected on its LCD

screen. This provides energy management supervisor with the power quality information of branch

loads which was impossible to identify.

±0.2% Reading/IEC62053-22 Class 0.5S[Class 0.2S 1] Accuracy

Recently enterprise energy management system is essential for effective energy use and preventive

management to prepare CO2 emission management in plant, data center and building. The key

factor to determine reliability of the energy management is measuring accuracy. Accura 2300S/2350

makes 0.2% high accuracy measurements for voltage and current, and conforms to IEC62053-22

class 0.5S[Class 0.2S 1] for power and energy. This makes it possible to precisely analyze and

diagnose various problems with energy management and power facilities.

1 Split-core single phase single hole power measuring module, Accura 2350-1PSCSH-800A/630A/400A

conforms to IEC62053-22 Class 0.2S.

Chapter 1 Introduction

Accura 2300S/2350 User Guide

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Dip[Sag]/Swell[IEC61000-4-30 Class B], Power Quality

Accura 2300S provides various power quality information such as Dip[Sag], Swell, harmonic information [up to

63 harmonic], Crest factor, K factor, and unbalance. This makes it possible for energy management supervisor

to easily find the change of power quality in the power facility. Quality information conforms to IEC61000-4-30.

Aggregation Interval Maximum/Minimum/Average Information

Accura 2300S provides the average value that corresponds to 0.5 second interval from the

measurement value per cycle unit. Based on 0.5 second interval average value, Accura 2300S

provides the maximum/minimum/average of 1 second, 5 seconds, 1 minute, 5 minutes, 1 hour and

6 hours intervals. This measurement interval that is longer than 0.5 second means the Aggregation

Interval.

Accura 2300S provides not only the measuring parameter information, but also statistic information

(maximum, minimum, average) of voltage, current and power by communication. This includes the

information of measuring parameter which often changes. So this makes it possible to accurate trend-

analyzing about voltage, current and power.

CE/UL Safety and Reliability

The structure-framework, circuit, fire of Accura 2300S/2350 conforms to standard, CE[EN61326-1,

EN61326-2-1] and UL[UL61010-1].

Safety Guarantee of Installation by Through-hole Structure

Accura 2350-3P[1P] three phase[single phase] power measuring module is structured with Through-

hole current sensing without any electrical contacts, which guarantees safety of electrical accident and

simplifies installation. TM-3P is three phase terminal for helping wiring.

Fig 1.1 Accura 2350-3P Through-hole Currrent Sensing Structure

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ROOTECH Accura 2300S/2350 User guide

ROOTECH Accura 2300S/2350 User guide

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