Page is loading ...
RPT091
Remote Power Transducer
Installation & Operation
Manual
BG0119 Rev. B
RPT091
REMOTE POWER
TRANSDUCER
Installation and Operation
Manual
i
LIMITED WARRANTY
The manufacturer offers the customer an 18-month functional
warranty on the instrument for faulty workmanship or parts
from date of dispatch from the distributor. In all cases, this
warranty is valid for 24 months from the date of production.
This warranty is on a return to factory basis.
The manufacturer does not accept liability for any damage caused by instrument
malfunction. The manufacturer accepts no responsibility for the suitability of the
instrument to the application for which it was purchased.
Failure to install, setup or operate the instrument according to the instructions
herein will void the warranty.
Your instrument may be opened only by a duly authorized representative of the
manufacturer. The unit should only be opened in a fully anti-static environment.
Failure to do so may damage the electronic components and will void the
warranty.
NOTE
The greatest care has been taken to manufacture and calibrate your instrument.
However, these instructions do not cover all possible contingencies that may
arise during installation, operation or maintenance, and all details and variations
of this equipment are not covered by these instructions.
For additional information regarding installation, operation or maintenance of
this instrument, contact the manufacturer or your local representative or
distributor.
IMPORTANT
Please read instructions contained in this manual before performing installation,
and take note of the following precautions:
1. Ensure that all incoming AC power and other power sources are turned OFF
before performing any work on the instrument. Failure to do so may result
in serious or even fatal injury and/or equipment damage.
2. Before connecting the instrument to the power source, check the labels on
the side of the instrument to ensure that your instrument is equipped with the
appropriate power supply voltage, input voltages, currents, analog output
and communication protocol for your application. Also check the
correctness of other ordering options.
ii
3. Under no circumstances should the instrument be connected to a power
source if it is damaged.
4. To prevent potential fire or shock hazard, do not expose the instrument to
rain or moisture.
5. The secondary of an external current transformer must never be allowed to
be open circuit when the primary is energized. An open circuit can cause
high voltages, possibly resulting in equipment damage, fire and even serious
or fatal injury. Ensure that the current transformer wiring is made through
shorting switches and is secured using an external strain relief to reduce
mechanical strain on the screw terminals, if necessary.
6. The RPT091 relays should not be used for basic (primary) protection of
power lines, transformers or motors, or for protection of people from injury.
7. Setup procedures must be performed only by qualified personnel familiar
with the instrument and its associated electrical equipment.
8. DO NOT attempt to open the instrument under any circumstances.
BG0119 Rev. B
iii
Table of Contents
Chapter 1 Introduction______________________________________1
1.1About This Manual________________________________________1
1.2About the RPT091_________________________________________1
1.3Getting Started___________________________________________4
1.3.1 Turning on the Transducer____________________________________4
1.3.2 The Remote Display Module___________________________________5
1.4Post-Installation Checking__________________________________6
Chapter 2 Installation and Interfaces__________________________7
2.1Initial Inspection__________________________________________7
2.2Mechanical Installation_____________________________________7
2.2.1 Location___________________________________________________7
2.2.2 Mounting Procedure for RDM_________________________________8
2.2.3 Mounting Procedure for RPT__________________________________9
2.3Electrical Installation_____________________________________10
2.3.1 Power Source Connection____________________________________12
2.3.2 Voltage Input Connections___________________________________12
2.3.3 Current Inputs_____________________________________________13
2.3.4 Wiring Configurations_______________________________________13
2.3.5 Ground Connection_________________________________________17
2.3.6 Communications Connections_________________________________17
2.3.7 Relay Connections__________________________________________21
2.3.8 Status Input Connection_____________________________________22
2.3.9 Analog Output Connection___________________________________23
2.3.10Analog Expander Connection_________________________________24
2.3.11Remote Display Module Connection___________________________24
Chapter 3 Setup on the RDM________________________________25
3.1Setup Mode_____________________________________________25
3.1.1 RDM Display Windows in Setup Mode_________________________25
3.1.2 RDM Keys in Setup Mode___________________________________25
3.1.3 Entering/Quitting Setup Mode_________________________________26
3.1.4 Password_________________________________________________26
3.1.5 Setup Menus______________________________________________27
3.1.6 Selecting and Entering Values_________________________________28
iv
3.2 Basic Setup______________________________________________29
3.3 Communications Port Setup _______________________________32
3.4 Status Inputs Setup - Optional ______________________________34
3.5 Analog Output Setup - Optional_____________________________35
3.6 Analog Expander Setup - Optional __________________________39
3.7 Pulsing Output Setup - Optional ____________________________39
3.8 Alarm Setpoints Setup ____________________________________41
3.9 RTC Setup ______________________________________________44
3.10 Display Setup____________________________________________46
3.11 Access Control Setup _____________________________________47
3.12 Resetting Energies & Maximum Demands____________________48
Chapter 4 RDM Data Display ______________________________ 49
4.1 Viewing the Displays______________________________________49
4.2 Display Formats _________________________________________50
4.3 Self-Test Diagnostics ______________________________________54
Chapter 5 Troubleshooting ________________________________ 55
Appendix:
Technical Specifications ___________________________________ 58
Index ___________________________________________________ 62
Chapter 1 Introduction 1
Chapter 1 Introduction
1
1.1 About This Manual
This manual is intended for the user of the RPT091 Remote Power
Transducer. This transducer is a microprocessor-based instrument used
for the measurement, monitoring, and management of electrical
parameters.
This chapter gives an overview of this manual and an introduction to the
RPT091, including its standard and optional features.
Chapter 2, Installation and Interfaces, provides details on mechanical and
electrical installation.
Chapter 3, Setup on the RDM, provides instructions for performing
parameter setup on the optional Remote Display Module (RDM).
Instructions for performing the setup on your computer are found on the
accompanying diskette that contains the PComTest program.
Chapter 4, RDM Data Display, tells you how to read the RDM displays.
Appendix A contains Technical Specifications of the RPT091.
1.2 About the RPT091
The RPT091 is a compact three-phase AC remote power transducer,
specially designed to meet the requirements of users ranging from
electrical panel builders to substation operators. The unit operates as a
transducer with a remote master (computer or PLC), or as a stand-alone
transducer with a Remote Display Module (RDM). In the latter case a
remote master may be used also.
The RDM can be panel mounted (using either a 4-inch round or 96 x 96
mm square cutout) or hand-held. The panel mounted RDM and the wall
mounted RPT together provide a retrofit solution for users wishing to
replace old equipment.
The following are features of the RPT091:
2Chapter 1 Introduction
Measured Parameters
The RPT091 measures the parameters listed below. The symbol ‘N’
denotes measurements that are averages of either 8, 16, or 32 real-time
values; ‘+’ denotes real time measurements in one cycle of fundamental
frequency.
Parameter Commu-
nication
RDM
Display
A
nalog
Output
Pulsing
Relay
A
larms
/
Control
Relay
Voltages and Currents
Voltage (L-n/L-L) per phase N + N N + N +
Current per phase N + N N + N +
Neutral (unbalanced)
current
N + N N N
Powers
kW per phase N + N
kvar per phase N + N
kVA per phase N + N
Power factor per phase N + N
kW total N + N N + N
kvar total N + N N + N
kVA total N + N N + N
Power factor total N + N N + N
Frequency N + N N + N+
Demand
Ampere Demand per phase N N
Max.Ampere Demand per
phase
N N
Accumulated kW demand N N N
Accumulated kVA demand N N N
kW Demand N N
KVA Demand N N
kW Sliding Demand N N
KVA Sliding Demand N N
kW Maximum Sliding
Demand
N N
KVA Maximum Sliding
Demand
N N
Energy
kWh Import per phase N N
kvarh Import per phase N N
Chapter 1 Introduction 3
Parameter Commu-
nication
RDM
Display
A
nalog
Output
Pulsing
Relay
A
larms
/
Control
Relay
kVAh Import per phase N N
kWh Total Import / Export N N N
kvarh Total Import / Export N N N
kVA Total N N N
kvarh net N
Harmonic Distortion (RPT091H)
Voltage THD per phase N + N +
Current THD per phase N + N +
Current TDD per phase N + N +
K- Factor per phase N +
Status
Discrete Input Status N N N
Relay Output Status N N
Alarm Trigger Status N
Phase Rotation N N N
Remote Control via
Communication
N N
Displayed values are set according to the potential transformer ratio (if
relevant) and current transformer primary current.
Inputs and Outputs
The RPT091 has the following inputs/outputs:
• 1 analog output (optional)
• 2 energy pulsing/alarm relay outputs
• 4 status inputs, for status of dry contacts, Analog Output
Multiplexer, and/or external synchronization of Power Demand
Period (optional)
Communications Connection
The RPT091 has a RS-422/RS-485 communications connection to a
computer. The RS-422/RS-485 can operate in multi-drop mode,
permitting the connection of up to 32 instruments to a single
communications line.
4Chapter 1 Introduction
Remote Display Module - Optional
The RPT091 can be equipped with a Remote Display Module (RDM) that
provides local data display for the RPT091, as well as setup capabilities.
The RDM is connected to the RPT091 via a conventional DB15
connector (0.4/1.8/3.0 m cable supplied).
The display is multi-page and is composed of three windows with high-
brightness digital LEDs. The keypad consists of six long-life push-button
keys used for viewing displays and for initial setup of the instrument.
There are two modes of operation in the RDM: setup mode, for initial
setup of parameters (see Chapter 3, Setup on the RDM), and display
mode, in which the Transducer executes measurement functions and
displays the results (see Chapter 4, RDM Data Display). The display
mode is the default mode.
Harmonics - Optional
The RPT091H offers additional measured parameters: Total Harmonic
Distortion (THD) and Total Demand Distortion (TDD).
1.3 Getting Started
After you have installed your Transducer (see Chapter 2, Installation and
Interfaces), you will be ready to turn on the instrument and perform the
initial setup, in which you define the configuration of the instrument (see
Chapter 3, Setup on the RDM). Following are basic instructions for
turning on the Transducer and an explanation of the RDM elements.
1.3.1
1.3.11.3.1
1.3.1 Turning on the Transducer
Connect the Transducer to a suitable power source. When power is
applied, the Transducer initiates a series of self-tests. Upon completion of
the self-tests, all of the front panel LEDs will light up for one second and
indicate a one-digit diagnostic code (see Section 4.3 for a list of error
codes). An ‘8’ represents normal power up. If a different diagnostic code
constantly appears when you apply power to the instrument, contact your
local distributor for instructions.
If the power LED is not lit, check the voltage level on the instrument
power supply inputs (10, 12). If the display LEDs are not lit, check the
RDM cable connections.
Chapter 1 Introduction 5
1.3.2 The Remote Display Module
The RDM, shown in Figure 1-1, consists of three display windows and
six keys. The functions of the keys are as follows:
In Setup Mode:
SELECT Scrolls vertically between windows; makes a window active
ENTER Enters menu/sub-menu, or performs an action indicated in
the active window, or stores a value you selected in the
active edit window
ESC Returns to the higher menu/sub-menu level, or quits an
active window without changes
UP ARROW
▲
▲▲
▲ Scrolls values forward in the active window
DOWN ARROW ▼
▼▼
▼ Scrolls values backward in the active window
In Display Mode:
UP ARROW
▲
▲▲
▲ Scrolls display pages backward
DOWN ARROW ▼
▼▼
▼ Scrolls display pages forward
BOTH ARROWS
AT ONCE
▲ ▼ Returns to page 1 of the display
MAX. DEMAND Selects the maximum demands group
THD/TDD Selects the harmonic measurements group (for option
RPT091H only)
ENERGY Selects the energy measurements group
SELECT
Quits display mode and enters setup mode
Figure 1-1 The RDM Panel - Display Mode
6Chapter 1 Introduction
1.4 Post-Installation Checking
After completion of installation and setup, turn on monitored voltages
and currents and check the following:
N phase voltages must be approximately equal
N phase rotation should be positive (if concrete load does not have
negative phase rotation)
N symmetrical load phase currents must be approximately equal
N phase active powers and power factors must be equal and values
correspond to actual load
TROUBLESHOOTING
If any of these conditions are not fulfilled, check the voltage and current inputs connections.
Incorrect polarity of CT connections or incorrect voltage and/or current phase rotation could
be possible causes of errors.
Chapter 2 Installation and Interfaces 7
Chapter 2 Installation and Interfaces
2
2.1 Initial Inspection
Upon receipt, the instrument should be free of damage and in perfect
order. To confirm this, first inspect the instrument for physical damage
incurred in transit. If the instrument is damaged, inform your local
distributor immediately. Only after you have determined that the
instrument is damage-free, test the electrical performance.
2.2 Mechanical Installation
2.2.1
2.2.12.2.1
2.2.1 Location
The instrument should be mounted away from heat sources in a dirt-free
environment. The instrument should not be operated in direct sunlight nor
should it come into contact with oil or moisture.
Although designed to operate in an electrically noisy environment, the
instrument should not be placed near very high electric fields. In the
event that the instrument is mounted in a harsh, noisy environment with
high potential for electromagnetic impulses from heavy switch gears,
motors or lightning, it is recommended to install appropriate protective
devices such as lightening and over-voltage arresters to all incoming
voltage inputs.
8 Chapter 2 Installation and Interfaces
2.2.2
2.2.22.2.2
2.2.2 Mounting Procedure for RDM
The RDM can be mounted on a round or square cut-out. The cut-out
dimensions are shown in Figure 2-1 and the mounting system in Figure
2-2. All materials required for mounting are provided with the RDM.
Figure 2-1 RDM Cut-Out Dimensions
Figure 2-2 Mounting the RDM
92.0
4 PLS.
.198 DIA
DIN43700
c98-09001/1
3.375"
3.375"
c98-09001-2
Chapter 2 Installation and Interfaces 9
2.2.3
2.2.32.2.3
2.2.3 Mounting Procedure for RPT
The RPT091 can be mounted on a 35mm DIN rail or wall-mounted using
a retrofit kit. The retrofit kit for a round cut-out is shown in Figures 2-3
and 2-4.
Assembly for Retrofit
1. Insert the RDM into the cut-out and mount the two brackets on the
protruding studs.
2. Fasten the brackets using the wide flat washers, lock washers #8 and
wing nuts #8-32. Do not tighten the nuts.
Figure 2-3 Mounting the RPT - Retrofit
3. Mount the RPT on mounting studs #6-32.
4. Supporting the RPT with your hand, assemble the four screws #6-32
(5/8" length) and lock washer #6; fasten the RPT to the brackets.
5. Tighten the wing nuts to secure the assembly.
Connect the RDM to the RPT using the cable supplied.
c98-09001-3
10 Chapter 2 Installation and Interfaces
Figure 2-4 The RPT Mounted - Retrofit
2.3 Electrical Installation
Before performing any installation procedure, ensure that
all incoming power sources are shut OFF. Failure to
observe this practice can result in serious or even fatal
injury and damage to equipment.
Connections to the RPT091 are made via terminals located on the front of
the instrument, shown in Figure 2-5 .
c98-09001-4
Chapter 2 Installation and Interfaces 11
Figure 2-5 Locations of Terminals: Front View
NOTE: Power source and current input connections require use of the two suppression cores provided with the instrument.
2
INPUTS
STATUS
POWER
POWER
-
DC
+
N
10
AC
12
L
7
+
RPT091
I
I
RDM
1
1
,,
1
+
3
-
TXD
23
2
II
I
RXD
4
+--
6
INPUT
RS-422/485
COMMUNICATION
+TX
3
I
-TX+RX
9
PROT.
-RX
1
11
3
RELAYS
V
5
OUTPUT
ANALOG
1
V
43 +
2
V
2
1
8
c98-10019
2
V
N
-
EL0009 WIDE
SUPPRESSION CORE
SUPPLY
SATEC
12 Chapter 2 Installation and Interfaces
2.3.1
2.3.12.3.1
2.3.1 Power Source Connection
The RPT091 can be powered from a dedicated fused power source, or
from a monitored voltage if it is within the transducer power supply
range.
Recommendation:
If the RPT091 is a part of a monitoring system (SCADA) with
the host computer or if it is used as an alarm relay, the
instrument should be powered from a dedicated reliable
source (e.g., a substation storage battery or UPS).
If the RPT091 is a stand-alone metering instrument, monitored
voltage may be used as the supply voltage source.
The instrument is operated from a single phase AC power source
supplying either 120V/60Hz or 230V/50Hz, depending on which you
ordered. The optional DC power supply should be connected to the same
terminals.
AC power supply: line to terminal 12; neutral to terminal 10.
DC power supply: positive to terminal 12; negative to terminal 10.
Connections to the power supply and current terminals should be made
using one of the two suppression cores provided with your instrument as
shown in Figure 2-5.
2.3.2
2.3.22.3.2
2.3.2 Voltage Input Connections
All voltage inputs are galvanically isolated using internal voltage
transformers.
Input of 690V (Standard): To ensure accurate readings, the measured
voltage between terminals 2-5, 5-8 and 8-2 should not exceed 790V AC
RMS, and the measured voltage between terminals 2-11, 5-11 and 8-11
should not exceed 460V AC RMS and 695V amplitude. Use any of the
seven wiring configurations shown in Figures 2-6 through 2-12.
Input of 120V (Option U): To ensure accurate readings, the measured
voltage between terminals 2-5, 5-8, 8-2, 2-11, 5-11 and 8-11 should not
exceed 144V AC RMS and 225V amplitude. 120V input usually implies
use of a potential transformer (PT). The PT requires use of any of the four
wiring configurations shown in Figures 2-8 through 2-11.
Chapter 2 Installation and Interfaces 13
2.3.3
2.3.32.3.3
2.3.3 Current Inputs
To ensure accurate readings, the input current should not exceed 1.2A
RMS and 1.76A amplitude for the 1A CT secondary, or 6A RMS and
8.8A amplitude for the 5A CT secondary.
All current inputs are galvanically isolated using internal current
transformers.
If copper wiring is used to the current inputs, its thickness should be 2.5 -
4mm2 (13 -11 AWG).
The RPT091 provides correct measurements of the current if at least one
of the voltages V1 or V3 is connected (or if the input frequency differs
from its setup value by no more than 2%).
The CTs must be connected in the correct order and with the correct
polarity as shown in the wiring diagrams for the instrument to
provide correct readings.
2.3.4
2.3.42.3.4
2.3.4 Wiring Configurations
There are seven possible wiring configurations, as shown Figure 2-6
through 2-12. For each wiring configuration there is an associated
definition of the basic setup parameter, ‘Wiring Mode’. See Chapter 3,
Setup on the RDM, for instructions on defining setup parameters.
Wiring Configuration ‘Wiring Mode‘ Definition
3-wire, 2-element Direct connection using 2
CTs
3dir2
4-wire Wye, 3-element Direct connection
using 3 CTs
4LL3 or 4Ln3
4-wire Wye, 3-element connection using 3
PTs and 3 CTs
4LL3 or 4Ln3
3-wire, 2-element Open Delta connection
using 2 PTs and 2 CTs
3OP2
4-wire Wye, 2 1/2-element connection using 2
PTs and 3 CTs
3LL3 or 3Ln3
3-wire Open Delta, 2 1/2-element connection
using 2 PTs and 3 CTs
3OP3
4-wire Grounded Delta direct connection 4LL3 or 4Ln3
14 Chapter 2 Installation and Interfaces
Three Wire 2-Element Direct Connection, 2 CTs
Set the ‘Wiring Mode‘ to '3dir2' .
Figure 2-6 3-Wire Direct Connection, 2 CTs
Four Wire Wye 3-Element Direct Connection, 3 CTs
Set the ‘Wiring Mode’ to '4LL3' or '4Ln3'.
Figure 2-7 4-Wire Wye Direct Connection, 3 CTs
LINE
LINE
LINE
+
K
+
K
-
L
-
L
c98-10010
1(A)
2(B)
3(C)
Shorting
Switches
+
+
Currents Voltages
LOAD
10 12 7
I
1
13
2
I
46
3
I
911
3
V
5
1
V
2
V
2
8
V
N
N
LINE
LINE
LINE
+
+
-
K
+
K
K
-
L
L
-
L
c98-1 0009
1(A)
2(B)
3(C)
Shorting
Switches
+
+
+
Currents Voltages
LOAD
10 12 7
I
1
13
2
I
46
3
I
911
3
V
5
1
V
2
V
2
8
V
N
/
