2.36
SEL-700G Relay
Instruction Manual
Date Code 20170814
Installation
Thermal Protection of Generator and Prime Mover
Thermal Protection of Generator and Prime Mover
Figure 2.30 shows an application example of an SEL-700G Relay and an
SEL-2600 RTD Module connected to the multimode fiber-optic serial Port 2
of the relay providing thermal protection for the generator and prime mover.
The SEL-700G also supports an SEL-2600 RTD Module on the EIA-232 port
using an SEL-2812M or SEL-2814M for ST connectors and an SEL-2800M
Fiber-Optic Transceiver for V-pin connectors. The SEL-700G supports an
SEL-2600 RTD Module on the EIA-485 port using an SEL-2820 V-pin
transceiver for V-pin connectors and an SEL-2824 Fiber-Optic Transceiver for
ST connectors. The SEL-2600 requires the PROTO setting to be set to SEL
protocol at a data rate of 2400 bps.
Figure 2.30
Generator Thermal Protection With an SEL-2600 RTD Module and an SEL-700G
Field Ground Protection of Generator
The SEL-700G Relay works with the SEL-2664 Field Ground Module to
provide field ground protection for the generator field winding. Two different
pickup levels of the insulation resistance are available for configuration. The
field ground protection elements (64F) Relay Word bits can be programmed
into an output contact for alarm or into the trip equation for tripping. The
protection covers a range of high-resistance as well as low-resistance ground
faults (from 0.5 to 200 kilohms).
The SEL-700G supports an SEL-2664 Field Ground Module on the EIA-232
port using an SEL-2812M or SEL-2814M for ST connectors. The SEL-700G
supports an SEL-2664 Field Ground Module on the EIA-485 port using an
SEL-2824 Fiber-Optic Transceiver for ST connectors. The SEL-700G also
supports an SEL-2664 on multimode fiber-optic serial Port 2 for ST
connectors. The SEL-2664 requires the setting PROTO to be set to SEL
protocol at a data rate of 9600 bps.
SEL-2600 Series
SEL-700G Relay
Generator
Prime
Mover
ST Fiber-Optic Port
(built into SEL-2600 Series)
Port 2, Fiber-Optic Serial Port,
Receive Channel
As many as 12 RTD inputs,
plus one contact
To 1000 meters via single fiber-optic cable, SEL
part number C805Z010SSXxxx
(Refer to the C805 Model Option Table for additional
cable choices.)
Summary of Contents for SEL-700G Series
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