IS200ERSCG1A

IS200ERSCG1A is an Exciter Regulator Static Converter manufactured and designed by General Electric as part of the Excitation Series used in excitation control systems. The IS200ERRRG A Exciter Regulator Redundant Relay (ERRR) board, the IS200ERDDG A Exciter Regulator Dynamic Discharge (ERDD) board, and the dc source and field are all interfaced by the ERSC. It offers connections for field discharge and dc/dc static power converter operations. The board is divided into the ERSCG1 and ERSCG2 groups. Only simplex applications employ ERSCG1. Although simplex applications can also use ERSCG2, redundant applications must.

Either rectified ac, dc from a station battery, or both types of electricity are used as input. A maximum output of 250 V dc at 35 A dc continuous and 250 V dc at 52.5 A dc for 10 seconds is possible. With two full regulator systems coupled to a single field, functionality is offered to operate in a simplex system or in a redundancy system. An insulated gate bipolar transistor (IGBT) module installed on the board handles all static power switching (apart from field discharge for redundant switchover). The dc link charging resistor can be bypassed with a relay (K3). When switching from the main to the redundant regulator, ERSCG2 includes a separate channel for latched field discharge.

ERSC APPLICATION DATA:

The dimensions of the ERSC are roughly 4 inches broad by 6 inches high. Twelve soldered gates lead connections and four bolted power connectors secure the IGBT module to the ERSC. Four mounting screws hold the IGBT module to a vertical heat sink. The ERSC handles connections with ERRR, ERDD, and the dc source and field.