ezPAC™
SA300 Series
SUBSTATION AUTOMATION UNIT
SA310/SA320/SA330
Installation Manual
BG0325 Rev. D
i
LIMITED WARRANTY
The manufacturer offers the customer an 24-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 36
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, set up 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 the instructions 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.
3. Do not connect the instrument to a power source if it is damaged.
4. 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. Setup procedures must be performed only by qualified personnel familiar with the instrument and
its associated electrical equipment.
7. DO NOT insert or remove I/O modules if the instrument is ON.
8. DO NOT open the instrument under any circumstances.
)Read this manual thoroughly before connecting the meter to the current carrying circuits. During
operation of the meter, hazardous voltages are present on input terminals. Failure to observe
precautions can result in serious or even fatal injury or damage to equipment.
ii
Table of Contents
Chapter 1 Introduction ...........................................................................................1
1.1 About This Manual ...................................................................................................1
1.2 About The SA300......................................................................................................1
Chapter 2 Installation .............................................................................................4
2.1 Mechanical Installation ............................................................................................4
2.2 Electrical Installation................................................................................................8
2.3 Location of Modules.................................................................................................25
Chapter 3 Communications ...................................................................................26
Chapter 4 Changing the Battery............................................................................32
Appendix: Technical Specifications .....................................................................33
Chapter 1 Introduction
1
Chapter 1 Introduction
1. Introduction
1.1 About This Manual
This manual is intended to assist the user in the installation of the SA300 Series (ezPAC™) Substation
Automation Unit. The term ‘SA300’ is used herein to refer to all models in the series.
This chapter gives an overview of this manual and an introduction to the SA300.
Chapter 2, Installation, provides instructions for mechanical and electrical installation.
Chapter 3, Communications, provides drawings for communications connections and instructions for printing
electrical parameter readings.
Technical Specifications for the SA300 are found in the Appendix.
1.2 About The SA300
The SA300 series is a group of advanced multi-microprocessor-based digital instruments that incorporate the
capabilities of a power quality analyzer, energy meter, fault and data recorder and programmable controller,
oriented for substation automation. These instruments provide three-phase measurements of electrical
quantities in power distribution systems, monitoring external events, operating external equipment via relay
contacts, fast and long-term on-board recording of measured quantities, faults with currents up to 150A and
events, harmonic network analysis and disturbance recording.
The unit is available in three models:
• SA310 - Basic Fault model - offers all the basic metering, control, and fault and event
recording capabilities
• SA320 - Power Quality model - adds an IEEE 1159 power quality recorder and reports
• SA330 - Premium model - adds four 10A/20A current inputs for precise energy metering and
management, keeping the standard 150A current inputs for fault recording
Features
The SA300 combines in a single enclosure:
• Digital Fault Recorder (onboard fault detector - programmable fault
thresholds and hysteresis, up to 150 Amps fault currents, zero-
sequence currents and volts, current and volt unbalance; up to 48
external digital triggers from tripping protection relays; ready-for-use
fault reports - fault currents magnitude and duration, coincident volts
magnitude, fault waveforms and RMS trace)
• Precise Sequence-of-Events Recorder (up to 96 digital inputs at 1-
ms resolution, fault events and relay operations)
• EN50160 Power Quality recorder (EN50160 compliance statistics,
EN50160 harmonics survey statistics, onboard power quality
analyzer; programmable thresholds and hysteresis; ready-for use
reports)
• GOST13109-97 (Russian Power Quality standard) onboard power
quality analyzer; programmable thresholds and hysteresis; ready-for
use reports)
• Power Quality Recorder (IEEE 1159, onboard PQ analyzer;
programmable thresholds and hysteresis; ready-for-use reports;
transients, impulses, sags/swells, interruptions, harmonics, inter-
harmonics, frequency variations, volts unbalance)
• Event Recorder for logging internal diagnostics events, control
events and I/O operations
• Eight fast Waveform Recorders (simultaneous 8-channel AC, VDC
and 16-channel digital inputs recording in a single plot; selectable
AC sampling rate of 32, 64 or 128 samples per cycle; 20 pre-fault
cycles, 1-ms resolution for digital inputs; up to 3 min of continuous
recording with a 4-Mbyte onboard memory at a rate of 32 samples
per cycle)
• Sixteen fast Data Recorders (from 1/2 cycle RMS to 2-hour RMS
envelopes; up to 20 pre-fault cycles; programmable data logs on a
periodic basis and on any internal and external trigger)
Chapter 1 Introduction
2
• Programmable Controller (32 control setpoints, OR/AND logic,
extensive triggers, programmable thresholds and delays, relay
control, event-driven data recording). Ability to block relay outputs
with a special control algorithm.
• High-Class 3-phase Power meter (true RMS, volts, amps, powers,
power factors, unbalance, neutral current)
• Demand Meter (amps, volts, harmonic demands)
• Precise Energy and Power Demand Meter (TOU, 16 Summary
energy and demand registers for substation energy management,
accumulation of energy pulses from external watt-meters, block
and sliding demands, up to 64 energy sources)
• Harmonic Analyzer (to 63rd harmonic volts and amps, directional
power harmonics and power factor, phasors, symmetrical
components)
• 32 digital counters for counting pulses from external sources and
numerous internal events
• 16 programmable timers from 1/2 cycle to 24 hours for periodic
recording and triggering operations on a time basis
• 1-ms satellite-synchronized clock (IRIG-B time-code input)
• SNTP Time Synchronization thru Ethernet port.
• Second backup power supply unit.
Additionally, the SA300 can be equipped with a 64/128-Mbyte Expansion Memory plug-in module for long-
term waveform recording.
AC/DC Inputs
The SA300 is provided with a set of fully isolated AC/DC inputs for a connection to the AC feeders and station
battery:
• Four isolated AC voltage inputs (up to 690VAC direct line-to-line input voltage)
• Four standard isolated AC current inputs with an extended input range up to ×3000%
overload (10A/IEC or 20A/ANSI input currents, to 150 Amps fault currents)
• Optional second set of four isolated current inputs (10A/IEC or 20A/ANSI input currents)
for precise energy metering
• DC voltage input (up to 300VDC) for monitoring the station battery
Digital and Analog I/O Options
The SA300 has five I/O expansion slots for removable plug-in I/O modules:
• DI - Digital inputs (16 or 32 optically isolated inputs per module, up to 3 modules per
device; options for dry contacts, and wet inputs; programmable de-bounce time from 1
ms to 1 sec; free linkage to Sequence-of-Events Recorder, Fault Recorder, control
setpoints, pulse counters and Energy/TOU subsystem)
• RO - Relay outputs (8 or 16 relays per module, up to 4 modules per device; unlatched,
latched and pulse operations, failsafe operation for alarm notifications; programmable
pulse width; direct remote relay control through communications)
• AI/AO - Mixed analog input/output modules (four optically isolated AI and four AO with
internal power supplies per module, up to 4 modules per device; options for 0-1mA,
±1mA, 0-20mA and 4-20mA inputs and outputs; ×200% overload current for 0-1mA and
±1mA AI/AO)
Communications Options
The SA300 has extensive communications capabilities:
• Three independent universal serial communications ports (RS-232, RS-422/RS-485,
up to 115,200 bps, Modbus RTU/ASCII and DNP3.0 protocols)
• Infrared port (Modbus RTU/ASCII and DNP3.0 protocols)
• Embedded 56K modem for communications through public telephone lines (Modbus
RTU/ASCII and DNP3.0 protocols)
• Ethernet 10Base-T port (Modbus/TCP or DNP3.0/TCP protocols, up to five non-
intrusive simultaneous connections, Telnet service port)
• USB 1.1 port (Modbus RTU protocol, 12 Mbps) for fast local communications and data
retrieving
Chapter 1 Introduction
3
Remote Displays
The SA300 can be ordered with an optional LED Remote Display Module (RDM) or LCD Remote Graphical
Module (RGM). Both have a fast RS-485 port and communicate with the SA300 through the Modbus RTU
protocol. Remote displays can be located at distances of up to 0.5 km from the device. The RGM can also be
ordered with an Ethernet 10Base-T port and can communicate with the SA300 through a local network.
The RDM has three six-digit windows with bright red LEDs well suited for dark areas. It allows the user to view
real-time RMS and harmonics measurements, status indication parameters, and perform basic setup
operations when installing and servicing the device.
The RGM is equipped with a color graphics LCD display and has extensive dialog capabilities, allowing the
user to view different fault and power quality information in a graphical form, such as waveforms, harmonic
spectrum, phasor and data trends, review latest fault and power quality reports for fast fault analysis, and
much more.
Upgradeable Firmware
The SA300 uses flash memory for storing device firmware that allows future upgrading of the device without
replacing any hardware component. The new features can be easily added to your device by simply replacing
the firmware through a local RS-232 port or Ethernet port.
Chapter 2 Installation
4
Chapter 2 Installation
2. Installation
2.1 Mechanical Installation
RS-485
ETHERNET
-
KEY SWITCH
CM
N/-
2
5
8
6
3
J5
+Tx+Rx -Tx -Rx
I
-
-
I
-
-
USB
CURRENT INPUTS (REVENUE GRADE)
I
-
-
I
-
-
---
+++
5678
+
+-
L/+ N/-
COM3
+-
L/+
MAIN
POWER SUPPLIES
BACKUP
VDC
MEASURE
+-
PANEL BLANK
-
PLUG-IN MODULE
JDR1
9
12
10
15
18
16
13
9
12
10
15
18
16
13
19
20
J7
19
20
9
12
10
15
18
16
13
19
20
5326
J9
2
5
8
6
3
2
5
8
6
3
96
5
2
5
8
6
3
J3
J12
6532
+
-
+
-
+
COM2COM1
+Tx+Rx -Tx -Rx
CURRENT INPUTS
I
-
-
I
-
-
I
-
-
I
-
-
+
-
123
IRIG-B
VOLTAGE INPUTS
PLUG-IN MODULE
PLUG-IN MODULE
PLUG-IN MODULE
4
MODEM
V
1
1
V
2
V
3
17
14
11
4
7
1
RS-232
1
1
JP3
V
N
V
4
4
V
4N
17
14
11
17
14
11
4
J10
1
1 2
17
18
19
20
12
15
14
16
13
11
RDM
P.SUPPLY
3 4
J2
5 6
J14
4
7
1
RS-422/RS-485 RS-422/RS-485
4
7
1
J1
4 7 8
2
3
J11
4
10
9
7
1
4
1
1 2 3 4 5 6 7 8
BATTERY
RDM
BACKUP
IR-PORT
e
zPA
C
03-04010
81
(
11.181"
)
(10.590")
(8.366")
(10.05")
(10.118")
4.7
.185"DIA.
SCREW M4.0
(SCREW #8-32)
255.24
212.50
284.00
269.00
257.00
Figure 2-1a Dimensions
Chapter 2 Installation
5
Figure 2-1b Mounting
Chapter 2 Installation
6
PULL OUT SLOWLY BEFORE US
E
BATTERY
LITHIUM AA
3.6 VOLTS
V
iew from top
B
A
TTERY
A
A
+
+
ezPAC
ezPAC
View from side
03
-
0
7
009
Figure 2-1c Activating the Battery
Chapter 2 Installation
7
The ezPac display module is connected to the communication connector of the SA300 unit as shown in Figure
2-2.
12V
12V
COM
COM
2
3
4
5
6
7
1
2
-
+1
NC
NC
-
+5
4
3
6
7
GREEN
RED
BLACK
WHITE
12V
COM-
COM+
12V
1
2
3
4
5
35
4
12
-
+
02-04035-DXF
ezPAC RDM
SA300 UNIT
e
zPA
C
Figure 2-2 ezPac RDM Connection
Chapter 2 Installation
8
2.2 Electrical Installation
2.2.1 Power Source Connection
The SA300 unit has two independent power supplies: main and backup. The standard power supplies may be
connected to an 85-265V AC or 88-290V DC power source. Lower voltage DC power supply options are also
available (see Appendix: Technical Specifications).
The main power supply connections are:
AC power: line to terminal J10 5; neutral to terminal J10 6.
DC power: positive to terminal J10 5; negative to terminal J10 6.
The backup power supply connections:
AC power: line to terminal J10 3; neutral to terminal J10 4.
DC power: positive to terminal J10 3; negative to terminal J10 4.
Copper wiring 1.5-2.5 mm2 (15 -13 AWG) should be used.
2.2.2 Current Inputs
SA310 and SA320 models have 4 current inputs up to 150A, connected to Relay Protection CT’s via J12
connector. Copper wiring 2.5 – 6 mm2 (10 AWG) should be used.
SA330 model has 4 additional current inputs up to 20A (ANSI) or 10A (IEC), connected to metering CTs via J14
connector. Copper wiring 1.5 – 3.5 mm2 (12 AWG) should be used.
2.2.3 Ground
Connect the chassis ground of the SA300 to the switchgear earth ground using dedicated wire greater than 2
mm2/14 AWG.
2.2.4 Voltage Inputs
SA300 models have 3 AC Y-connected voltage inputs of 690V (phase-to-phase) and neutral, and one separate
isolated AC voltage input of 400V.
2.2.5 Wiring Configurations
For models SA310, SA320, use any of the seven wiring configurations shown in Figures 2-3, 2-4, 2-5, 2-6, 2-7,
2-8 or 2-9; for model SA330, use any of the four wiring configurations shown in Figures 2-5a, 2-6a, 2-7a or 2-
8a.
Wiring Configuration Wiring
(See parameter setup instructions in Section 4.1) Model Code for
Setup See Figure:
3-wire direct connection using 2 CTs (2-element) SA310, SA320 3dir2 2-3
4-wire WYE direct connection using 4 CTs (3-element) SA310, SA320 4Ln4 or 4LL4 2-4
4-wire WYE connection using 3 PTs, 3 CTs (3-element) SA310, SA320 4Ln3 or 4LL3 2-5
4-wire WYE connection using 3 PTs, 3 CTs (3-element) SA330 4Ln3 or 4LL3 2-5a
3-wire open delta connection using 2 PTs, 2 CTs (2-
element) SA310, SA320 3OP2 2-6
3-wire open delta connection using 2 PTs, 2 CTs (2-
element) SA330 3OP2 2-6a
4-wire WYE connection using 2 PTs, 3 CTs (2½-element) SA310, SA320 3Ln3 or3LL3 2-7
4-wire WYE connection using 2 PTs, 3 CTs (2½-element) SA330 3Ln3 or3LL3 2-7a
3-wire open delta connection using 2 PTs, 3 CTs (2½ -
element) SA310, SA320 3OP3 2-8
3-wire open delta connection using 2 PTs, 3 CTs (2½ -
element) SA330 3OP3 2-8a
4-wire delta direct connection using 3 CTs (3-element) SA310, SA320 4Ln3 or 4LL3 2-9
Chapter 2 Installation
9
LINE 1
LINE 3
LINE 2 (A)
(C)
(B)
LOAD
Shorting
K
-
+
L
K
+-
L
COM2COM1 USB ETHERNET
COM3
RDM
MODEMIRIG-B
+-
GND12V
+Tx
+Rx-Tx-Rx +Tx
+Rx-Tx-Rx
VV
1244N
INPUT VOLTAGE
L/+ N/-
MAIN
POWER SUPPLIES
BACKUP
V
DC
MEASURE
+-
CURRENT
I
-
-
I
-
-
I
-
-
I
-
-
+
-
1234
J9 J10
JDR1
J7 JP3 J2
J3 J1 J11
J5
RS-232
RS-422/RS-485 RS-422/RS-485
RS-485
15
69 12345 12345
54321
4
1
21
34 1
8
12345678
+
-
+
-
+
-
1234
56
L/+ N/-
RDM
P.SUPPLY
INPUTS:
GROUND
MAIN POWER
SUPPLY
SW2
SW1
125/220V DC
OR 120/230V AC
+
-
DC
MEASUREMENT
V
3N
VVV
J14
J12
C
T
SA320 150A
SA310 150A
NOT CONNECTED
Switches
125/220V DC
0
2-
0
4
0
12
12 34 56
12345
678
Figure 2-3
SA310, SA320: Three Wire Direct Connection Using 2 CTs (2-element)
Wiring Mode = 3dir2
Chapter 2 Installation
10
N
Shorting
K
-
+
L
K
+-
L
K
+-
L
K
L
-
+
I
-
-
I
-
-
I
-
-
I
-
-
+
-
1234
+
-
+
-
+
-
SW1
CT
Switches
0
2-
0
4
0
1
3
MEASUREMENT
4N
INPUT VOLTAGE
V
1
V
J9
1
V
3
V
2
3
2
VV
N4
5
46
96
JDR1
COM1
RS-232
5 1
1
RS-422/485
IRIG-B
J7
4
-Tx
J3
2
+Rx
1
+Tx
3
32
5
-Rx
4
5 6
12V GND
-
+
RDM
SUPPLY
MAIN POWER
GROUND
MEASURE
VDC BACKUP
POWER SUPPLIES
MAIN
-
+
N/-
2
125/220V DC
J10
+
1
N/-
L/+
-
SW2
3 4
L/+
56
OR 120/230V AC
125/220V DC
NOT CONNECTED
8
1
RS-485
ETHERNET
RS-422/485
MODEM
JP3
14
J1
COM2
7 8
+Rx
+Tx
12 4
-Rx
3
-Tx
5
1
J2
COM3
3
P.SUPPLY
4
RDM
5 3 2
4
USB
J11
2
3
24
1
6
57
1
J5
8
LOAD
DC
LINE 1
LINE 3
LINE 2 (B)
(C)
(A)
CURRENT
INPUTS:
SA320 150A
SA310 150A
J14
J12
Figure 2-4
SA310, SA320: Four Wire WYE Direct Connection Using 4 CTs (3-element)
Wiring Mode = 4LL4 or 4Ln4
Chapter 2 Installation
11
-
-
-
-
-
-
N
K
-
+
L
K
+-
L
K
+-
L
+++
+++
K
L
-
+
PT
I
-
-
I
-
-
I
-
-
I
-
-
+
-
1234
+
-
+
-
+
-
C
T
0
2-
0
4
0
1
4
MEASUREMENT
4N
INPUT VOLTAGE
V
1
V
J9
1
V
3
V
2
32
VV
N4
5
46
SW1
1
96
JDR1
COM1
RS-232
5 1
1
RS-422/485
IRIG-B
J7
4
-Tx
J3
2
+Rx
1
+Tx
3
32
2
5
-Rx
4
5
3
6
12V GND
-
+
RDM
SUPPLY
MAIN POWER
GROUND
MEASURE
VDC BACKUP
POWER SUPPLIES
MAIN
-
+
N/-
2
125/220V DC
J10
DC
+
1
N/-
L/+
-
SW2
3 4
L/+
56
OR 120/230V AC
125/220V DC
NOT CONNECTED
8
1
RS-485
ETHERNET
RS-422/485
MODEM
JP3
14
J1
COM2
7 8
4
+Rx
+Tx
12 4
-Rx
3
-Tx
5
1
J2
COM3
3
P.SUPPLY
4
RDM
5 3 2
4
USB
J11
2
3
24
1
6
57
Switches
Shorting
1
J5
8
LOAD
(B)
LINE 2
LINE 3 (C)
LINE 1 (A)
CURRENT
INPUTS:
SA320 150A
SA310 150A
J14
J12
Figure 2-5
SA310, SA320: Four Wire WYE Connection Using 3 PTs, 4 CTs
(3-element)
Wiring Mode = 4LL4 or 4Ln4
Chapter 2 Installation
12
-
-
-
-
-
-
N
K
-
+
L
K
+-
L
K
+-
L
+++
+++
K
L
-
+
PT
CURRENT
I
-
-
I
-
-
I
-
-
I
-
-
+
-
1234
+
-
+
-
+
-
INPUTS
SA330 150A
03
-
05003
MEASUREMENT
4N
INPUT VOLTAGE
V
1
V
J9
1
V
3
V
2
3
2
VV
N4
5
46
SW1
1
96
JDR1
COM1
RS-232
5 1
1
RS-422/485
IRIG-B
J7
4
-Tx
J3
2
+Rx
1
+Tx
3
32
2
5
-Rx
4
5
3
6
12V GND
-
+
RDM
SUPPLY
MAIN POWER
GROUND
MEASURE
VDC BACKUP
POWER SUPPLIES
MAIN
-
+
N/-
2
125/220V DC
J10
DC
+
1
N/-
L/+
-
SW2
3 4
L/+
56
OR 120/230V AC
125/220V DC
8
1
RS-485
ETHERNET
RS-422/485
MODEM
JP3
14
J1
COM2
7 8
4
+Rx
+Tx
12 4
-Rx
3
-Tx
5
1
J2
COM3
3
P.SUPPLY
4
RDM
5 3 2
4
USB
J11
2
3
24
1
6
57
Switches
Shorting
1
J5
8
LOAD
(B)
LINE 2
LINE 3 (C)
LINE 1 (A)
8
-
-
I
-
-
I
+
5
+
-
I
-
6
-
I+
-
7
-
+
-
--
K
-
L
+
+-+
K
-
L
+-
K
L
K
L
SA330 20A
INPUTS
CURRENT
RELAY CTs METER CTs
J14
J12
Figure 2-5a
SA330: Four Wire WYE Connection Using 3 PTs, 4 CTs
(3-element)
Wiring Mode = 4LL4 or 4Ln4
Chapter 2 Installation
13
Shorting
K
-
+
L
K
+-
L
I
-
-
I
-
-
I
-
-
+
-
123
+
-
+
-
CT
Switches
0
2-
0
4
0
1
5
PT
+-+-
++
--
MEASUREMENT
4N
INPUT VOLTAGE
V
1
V
J9
1
V
3
V
2
3
2
VV
N4
5
46
LINE 2
LINE 3
LINE 1 (A)
SW1
(B)
(C)
96
JDR1
COM1
RS-232
5 1
1
RS-422/485
IRIG-B
J7
4
-Tx
J3
2
+Rx
1
+Tx
3
32
5
-Rx
4
5 6
12V GND
-
+
RDM
SUPPLY
MAIN POWER
GROUND
MEASURE
VDC BACKUP
POWER SUPPLIES
MAIN
-
+
N/-
2
125/220V DC
J10
DC
+
1
N/-
L/+
-
SW2
3 4
L/+
56
OR 120/230V AC
125/220V DC
8
1
RS-485
ETHERNET
RS-422/485
MODEM
JP3
14
J1
COM2
7 8
+Rx
+Tx
12 4
-Rx
3
-Tx
5
1
J2
COM3
3
P.SUPPLY
4
RDM
5 3 2
4
USB
J11
2
3
24
1
6
57
1
J5
8
LOAD
CURRENT
INPUTS:
SA320 150A
SA310 150A
J14
J12
Figure 2-6
SA310, SA320: Three Wire Open Delta Connection Using 2 PTs, 2 CTs (2-element)
Wiring Mode = 3OP2
Chapter 2 Installation
14
Shorting
K
-
+
L
K
+-
L
I
-
-
I
-
-
I
-
-
+
-
123
+
-
+
-
Switches
03
-
05005
PT
+-+-
++
--
MEASUREMENT
4N
INPUT VOLTAGE
V
1
V
J9
1
V
3
V
2
32
VV
N4
5
46
LINE 2
LINE 3
LINE 1 (A)
SW1
(B)
(C)
96
JDR1
COM1
RS-232
5 1
1
RS-422/485
IRIG-B
J7
4
-Tx
J3
2
+Rx
1
+Tx
3
32
5
-Rx
4
5 6
12V GND
-
+
RDM
SUPPLY
MAIN POWER
GROUND
MEASURE
VDC BACKUP
POWER SUPPLIES
MAIN
-
+
N/-
2
125/220V DC
J10
DC
+
1
N/-
L/+
-
SW2
3 4
L/+
56
OR 120/230V AC
125/220V DC
8
1
RS-485
ETHERNET
RS-422/485
MODEM
JP3
14
J1
COM2
7 8
+Rx
+Tx
12 4
-Rx
3
-Tx
5
1
J2
COM3
3
P.SUPPLY
4
RDM
5 3 2
4
USB
J11
2
3
24
1
6
57
1
J5
8
LOAD
-
+
-
5
-
I
-
+
-
-
7
I
+
K
+
K
-
L
-
L
INPUTS
SA330 20A
CURRENT
SA330 150A
INPUTS
CURRENT
RELAY
C
Ts METER CTs
J14
J12
Figure 2-6a
SA330: Three Wire Open Delta Connection Using 2 PTs, 2 CTs (2-element)
Wiring Mode = 3OP2
Chapter 2 Installation
15
N
K
-
+
L
K
+-
L
K
+-
L
I
-
-
I
-
-
I
-
-
I
-
-
+
-
1234
+
-
+
-
+
-
CT
0
2-
0
4
0
1
6
PT
+-
+-
+
-
+ -
MEASUREMENT
4N
INPUT VOLTAGE
V
1
V
J9
1
V
3
V
2
3
2
VV
N4
5
46
SW1
96
JDR1
COM1
RS-232
5 1
1
RS-422/485
IRIG-B
J7
4
-Tx
J3
2
+Rx
1
+Tx
3
32
5
-Rx
4
5 6
12V GND
-
+
RDM
SUPPLY
MAIN POWER
GROUND
MEASURE
VDC BACKUP
POWER SUPPLIES
MAIN
-
+
N/-
2
125/220V DC
J10
DC
+
1
N/-
L/+
-
SW2
3 4
L/+
56
OR 120/230V AC
125/220V DC
NOT CONNECTED
8
1
RS-485
ETHERNET
RS-422/485
MODEM
JP3
14
J1
COM2
7 8
+Rx
+Tx
12 4
-Rx
3
-Tx
5
1
J2
COM3
3
P.SUPPLY
4
RDM
5 3 2
4
USB
J11
2
3
24
1
6
57
Switches
Shorting
1
J5
8
LINE 1
LINE 3
LINE 2 (B)
(C)
(A)
LOAD
CURRENT
INPUTS:
SA320 150A
SA310 150A
J14
J12
Figure 2-7
SA310, SA320: Four Wire Wye Connection Using 2 PTs, 3 CTs (2½-element)
Wiring Mode = 3LL3 or 3Ln3
Chapter 2 Installation
16
N
K
-
+
L
K
+-
L
K
+-
L
I
-
-
I
-
-
I
-
-
I
-
-
+
-
1234
+
-
+
-
+
-
03
-
05006
PT
+
-
+
-
+
-
+
-
MEASUREMENT
4N
INPUT VOLTAGE
V
1
V
J9
1
V
3
V
2
3
2
VV
N4
5
46
SW1
96
JDR1
COM1
RS-232
5 1
1
RS-422/485
IRIG-B
J7
4
-Tx
J3
2
+Rx
1
+Tx
3
32
5
-Rx
4
5 6
12V GND
-
+
RDM
SUPPLY
MAIN POWE
R
GROUND
MEASURE
VDC BACKUP
POWER SUPPLIES
MAIN
-
+
N/-
2
125/220V DC
J10
DC
+
1
N/-
L/+
-
SW2
3 4
L/+
56
OR 120/230V AC
125/220V DC
8
1
RS-485
ETHERNET
RS-422/485
MODEM
JP3
14
J1
COM2
7 8
+Rx
+Tx
12 4
-Rx
3
-Tx
5
1
J2
COM3
3
P.SUPPLY
4
RDM
5 3 2
4
USB
J11
2
3
24
1
6
57
Switches
Shorting
1
J5
8
LINE 1
LINE 3
LINE 2 (B)
(C)
(A)
LOAD
K
++-+
K
-
L
L
K
-
L
INPUTS
SA330 20A
CURRENT
SA330 150A
INPUTS
CURRENT
++
5
-
-
I
-
-
-
I
6
--
7
I
-
-
+
RELAY CT
s
METER CT
s
J14
J12
Figure 2-7a
SA330: Four Wire Wye Connection Using 2 PTs, 3 CTs (2½-element)
Wiring Mode = 3LL3 or 3Ln3
Chapter 2 Installation
17
K
-
+
L
K
+-
L
K
+-
L
I
-
-
I
-
-
I
-
-
I
-
-
+
-
1234
+
-
+
-
+
-
SW1
0
2-
0
4
0
17
PT
+
+
+
- -
+
- -
Switches
Shorting
C
T
LINE 1
LINE 3
LINE 2 (B)
(C)
(A)
LOAD
6
45
23
1
J9
6
5
43
1 2
GROUND
MAIN POWER
SUPPLY
125/220V DC
V
4
3
V
12
V
N
VV
MEASUREMENT
DC
4N
V
125/220V DC
OR 120/230V AC
L/+
SW2
L/+
+-
N/-
+
-
N/-
MAIN
POWER SUPPLIES
BACKUP
V
DC
MEASURE
GND
12V
RS-422/485
INPUT VOLTAGE
IRIG-B
RS-422/485
J7
MODEM
J10
JP3
P.SUPPLY
4
1
COM3
J2
5
RDM
34
RS-485
3
+
4
-
2 1
RDM
8
+Rx
J1
21
+Tx
6
NOT CONNECTED
3
J11
534
-Rx
-Tx
12
USB
2 1
4 5
ETHERNET
1
7 8
J5
RS-232
COM1
JDR1
5
3
+Tx
1
J3
2
1
-Tx
312
+Rx
45
-Rx
4 5
COM2
6 7 8
6 9
CURRENT
INPUTS:
SA320 150A
SA310 150A
J14
J12
Figure 2-8
SA310, SA320: Three Wire Open Delta Connection Using 2 PTs, 3 CTs (2½-element)
Wiring Mode = 3OP3
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