Sel 751A - Enhanced Voltage Card Option with Advanced Metering and Protection Package (5 AVI); Enhanced Voltage Card Option with Monitoring Package; Table 2.4 5 AVI Voltage Card Terminal Designation; Table 2.5 3 AVI;4 AFDI Voltage Card with Arc-Flash Detection Inputs Terminal Designation

2.6
SEL-751A Relay Instruction Manual Date Code 20100129
Installation
I/O Configuration
Enhanced Voltage
Card Option With
Monitoring Package
(5 AVI)
MOT…x72x… Supported in Slot E only, order this card when you have
voltage inputs including synchronism-check voltage input and station dc
battery monitor input. With a voltage card installed, the SEL-751A tracks the
frequency (using positive-sequence voltage) and samples at 16 times-a-cycle.
Enhanced Voltage
Card Option With
Advanced Metering
and Protection
Package (5 AVI)
MOT…x73x… Supported in Slot E only, order this card when you have
voltage inputs including synchronism-check voltage input and station dc
battery monitor input. With a voltage card installed, the SEL-751A tracks the
frequency (using positive-sequence voltage) and samples at 16 times-a-cycle.
This option also provides demand and peak demand metering, and protection
elements 32, 59G, 59Q, and 81R. The connections are shown in Table 2.4.
Voltage Card Option
With Arc-Flash
Detection (AFD)
Inputs (3 AVI/4 AFDI)
MOT…x74x… Supported in Slot E only, order this card when you have
either single or three phase (wye or delta) PTs. With a voltage card installed,
the SEL-751A tracks the frequency (using positive-sequence voltage) and
samples at 16 times a cycle. This option also provides 4-channel arc-flash
detection (AFD) inputs with continuous self-testing.
Table 2.4 5 AVI Voltage Card Terminal Designation
Term ina l Nu mbe r Description
01 VA, Phase A voltage input
02 VB, Phase B voltage input
03 VC, Phase C voltage input
04 N, Common connection for VA, VB, VC
05 VS, synchronism-check voltage input
06 NS, common connection for synchronism-check voltage input
07 VBAT+ station battery (positive) voltage input
08 VBAT– station battery (negative) voltage input
NOTE: The relay tracks the
frequency if 3V1 is greater than 0.75 V.
Table 2.5 3 AVI/4 AFDI Voltage Card With Arc-Flash Detection Inputs
Terminal Designation
Term inal Numb e r Description
01 VA, Phase A voltage input
02 VB, Phase B voltage input
03 VC, Phase C voltage input
04 N, Common connection for VA, VB, VC
05 N, Common connection for VA, VB, VC
06 N, Common connection for VA, VB, VC
07 AF1 Channel TX and RX Inputs
08 AF2 Channel TX and RX Inputs
09 AF3 Channel TX and RX Inputs
10 AF4 Channel TX and RX Inputs