CHAPTER 1: OVERVIEW 735/737 RELAYS
3 SERIES RETROFIT – INSTRUCTION MANUAL 17
1.8 735/737 relays
735 and 737 features are available in 350 relays as described in the table below.
Installed Relay Retrofit Relay
735/737Feeder Protection System 350 Feeder Protection System
Feature 735/737
350
1
1. For additional features, refer to the 350 Instruction Manual.
Protection &
Control
50/51, 50G/51G 50P(2), 50G/SG(2), 50N(2), 51P(1),
51G/SG(1), 51N(1)
User selectable 49, 86
Metering &
Monitoring
Current Metering shown in % Metering
Breaker Health
Event Recording
Programmable Logic Elements
...
Communications RS485 2-wire communications
or RS422 4-wire communications
USB
Serial (RS485) protocols: Modbus
RTU, DNP 3.0, IEC 60870-5-103
Ethernet protocols: Modbus TCP/IP,
DNP 3.0, IEC 60870-5-104, IEC 61850
GOOSE, IEC 61850, OPC-UA
Hardware 8 LED trip indicators
4 LED status indicators
3 standard outputs
737 has 8 additional output relays to
provide separate dry contact
outputs for each overcurrent
protection element.
10 inputs
7 outputs (2 Form A, 5 Form C)
Configurable I/O
Configurable Logic
8 configurable and 4 fixed LEDs
10 fixed LED (drawout unit)
12 fixed LEDs (non-drawout unit)
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