DS200SHVMG1A

SCR HIGH VOLTAGE CARD

Product DESCRIPTION

Part Number

DS200SHVMG1A

Manufacturer

General Electric

Country of Manufacture

As Per GE Manufacturing Policy

Series

Mark V

Function

Module

Availability

In Stock

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TECHNICAL SPECIFICATIONS FOR GE - DS200SHVMG1A

DS200SHVMG1A is an SCR High Voltage M-Frame Interface Board manufactured by General Electric under EX2000. The SCR High Voltage M-Frame Interface Board (SHVM) interfaces signals from the SCR bridge of an M-frame drive to the DCFB or SDCI Power Supply Board and PCCA Power Connect Card.

Functional Description

The SHVM board performs the following functions.

Converts shunt signals (-500 mV to + 500 mV) into differential frequency outputs (0 - 500 kHz) that are sent to the DCFB or SDCI board.
Incorporates hardware jumper selectable 10:1 current transformers to provide additional current attenuation capability.
Provides attenuation of ac line, motor armature, and SCR bridge voltages
The SHVM board includes configurable jumpers, wiring plug connectors, and stab connectors parts of the board.

DC Bridge Shunt Isolator Circuit

Shunt signals from the bridge are converted by the dc positive (+) and dc negative () floating shunt isolator voltage controlled oscillator (VCO) circuits. The circuits are fed to the DCFB board and range from 500 mV to +500 mV (0 to 500 kHz). The input circuits of the isolators float to the bridge potentials of the dc+ and dc voltages.

DCAC Current Transformers

If required, the SHVM board provides 10:1 current transformer (CT) attenuation for alternating current line currents (phase A and phase C). This attenuation is switchable. Because the CT burden resistors on the SDCI and DCFB Power Supply Boards are not rated to handle more than 144 mA main line ACCT secondary current (rated dc current/ACCT ratio), attenuation is required above 144 mA. When the main line ACCT secondary current is less than 144 mA, attenuation should be turned off.

Application Data

The SHVM board is a high voltage interface board with floating board hardware at feedback voltage potential. Even when the control power is turned off, a high voltage could be applied to the board. Before making any hardware changes or changing the board, ensure that all high voltage input is also deenergized.

Board Hardware

The SHVM board has configurable jumpers, wiring plug connectors, and stab connectors (but no LEDs, fuses, testpoints, or switches).

Configurable Jumpers

The SHVM board has configurable jumpers, wiring plug connectors, and stab connectors (but no LEDs, fuses, testpoints, or switches).

Board Connectors

The SHVM board communicates with the drive's other boards and devices via eight plug connectors (designated PL) and eighteen stab connectors.

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