GE Industrial Solutions POWER LEADER PMCS Network Architecture Guide - Manual (Page 71)

Power Management Control System
Appendix A – IED Descriptions
61
protection for time-overcurrent, hi-set overcurrent, lo-set
overcurrent, and directional control. Overvoltage,
undervoltage, and underfrequency functions each have
two independent stages. With 14 programmable logic
inputs and seven outputs, the SR750 can be easily
configured for specific applications. The relay has
extensive monitoring and metering functions. It has an
internal memory that allows it to record the last 100
events, the last 10 faults, and a total of 256 cycles of
oscillography data. The relay performs self-tests in the
background during operation. A simulation function
allows you to test the relay without the need for external
ac voltage and current inputs.
The relay has a two-line display and keypad, as well as
three serial ports for computer interface.
Application
• Industrial and utility feeders
Protection and Control
• Complete time overcurrent
• Complete instantaneous overcurrent
• Directional overcurrent control
• Undervoltage and overvoltage
• Negative-sequence voltage
• Undervoltage automatic restoration
• Bus underfrequency
• Underfrequency automatic restoration
• Breaker failure
• Manual close control
• Cold-load pickup control
• Four setting groups
• Syncrocheck - V, f, Hz, & dead-source
• 14 programmable logic inputs
• Bus transfer
Monitoring and Metering
• Fault locator, record of last 10 faults
• Breaker operation & trip failure
• VT Failure
• Power factor – two independent stages
• Analog input – level and rate
• Total breaker arcing current
• Event recorder – Last 100 events
• Oscillography – 256 cycles
• Metering: V, I, Hz, var, VA, PF
• Demand: I
0
, I
0
, I
0
, MW, Mvar, MVA
• Data Logger
User Interface
• 40-character display and 24 LEDs
• Full numeric keypad
• RS-232 and RS-485 ports
SR760 Feeder Management Relay
The Multilin SR760 Feeder Management Relay is an
enhanced version of the Multilin SR750 relay, adding a
four-shot recloser.
EPM7430D/EPM7450D
The Futura+ multifunction digital power-monitoring
system offers the most extensive monitoring and
analysis available. Surpassing all other meters in its
class, this unit fulfills all your metering, data recording
and power analysis needs. This is simply the best power
monitoring and analysis solution ever. For a graphical
view of all the meter can do, check out the Futura+
Communicator link. You will be very impressed.
Features
• Multifunction Power Monitoring, Measuring
Every Parameter of Electrical Power
• True RMS with 0.15% Accuracy
• Extensive On-Board Storage for Virtually
Unlimited Data Trending
• 100 High-Speed Captured Waveform Events for
Voltage and Current Surges and Sags (All 6
Channels, 60 Cycles Per Channel Constitute an
Event)
• Dual Digital Communication Ports: Modbus
RTU/ASCII, DNP 3.0, Modbus+ and Ethernet
TCP/IP
• Harmonic Distortion to the 31st Order
• Multiple and Remote Displays
•
Extensive Digital and Analog I/O Capabilities
and Storage
Motor Manager II (MMII)
The Motor Manager 2 (MM2) combines control
functions and comprehensive motor protection in one
package. This compact device provides sophisticated
control and protective relaying at significant cost
savings over the discrete devices normally found in a
low voltage motor control center (MCC). One MM2 is
required for every starter in the MCC. The contactor
can be energized and de-energized using the MM2’s
direct wired inputs, or via the serial port. A total of 6
fixed and 10 programmable switch inputs are available.
A wide range of starter types may be controlled by the
MM2 using two contactor outputs and two auxiliary