Changyuan Shenru ISA-371G Bus Voltage Measurement and Control Device

ISA-371G is a bus voltage measurement and control device that implements monitoring, measurement and control, paralleling, and other functions for bus PTs.

ISA-371GA can achieve bus voltage monitoring and paralleling (without PT knife switch reactivation)
ISA-371GB can achieve bus voltage monitoring and paralleling (with PT knife switch reactivation)

ISA-371G Device Basic Configuration Table

Protection Functions:
? Three-stage bus PT broken wire alarm
? Three-stage bus grounding alarm
? Whole station no-voltage alarm
? Three-stage bus under-voltage alarm, over-voltage alarm
? Alarm-initiated output contact (only available in 371GA)
Measurement and Control Functions:
? Multi-channel (371GA has 52 channels, 371GB has 20 channels) remote signal input collection, with optional external reset and maintenance input.
? Ua1, Ub1, Uc1, 3Uo1, Ua2, Ub2, Uc2, 3Uo2, Ua3, Ub3, Uc3, 3Uo3, Uab1,
Ubc1, Uca1, Uab2, Ubc2, Uca2, Uab3, Ubc3, Uca3, Fr1, Fr2, Fr3, totaling 24 remote measurements
? Remote control of switch and soft壓板, with remote control operation records and statistics (only available in 371GA)
? Large-capacity event records, SOE records, self-test records, instantaneous lockout protection records
? Up to 11th harmonic analysis function
? Remote control function with interval five-prevention lockout following the same rules as the five-prevention host (only available in 371GA)
ISA-371GB Paralleling
Function:
? Can achieve up to 10 channels of voltage paralleling
? Paralleling via PT knife switch reactivation