GE DS200SHVMG1A High Voltage M-Frame Interface Board

GE DS200SHVMG1A High Voltage M-Frame Interface Board

Part Number DS200SHVMG1A Manufacturer General Electric Country of Manufacture As Per GE Manufacturing Policy Series Mark V Function Module Availability In StockDS200SHVMG1A 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.

The General Electric DS200SHVMG1A is a high voltage M-frame interface board. This unit is a member of the Mark V series of optional and replacement boards. When installed, this card provides an interface medium from the M-frame drive’s SCR bridge to the power supply board (DCFB or SDCI) as well as powerconnect cards (PCCA). A number of GE brand exciters and drives can have this board installed in its cabinet, although this DS200SHVMG1A PCB has specific applications in the control and management systems of wind, steam, and gas turbine automated drive assemblies. The Mark V Series that this DS200SHVMG1A SCR High-Voltage M-Frame Interface Board belongs to is a General Electric legacy series as its production has been discontinued in the years following its initial release. While this DS200SHVMG1A product offering's greater Mark V Turbine Control System Series is classifiable as a General Electric legacy series, it is also identifiable as one of the final General Electric product series to feature their patented Speedtronic control system technology. This DS200SHVMG1A SCR High-Voltage M-frame Interface Board is not the originally-manufactured device of its functionality to feature within the Mark V Series; that would be the DS200SHVMG1 parent printed circuit board missing this DS200SHVMG1A Board's A-rated functional product revision.

Hardware Tips and Specifications

When installed, DS200SHVMG1A provides an array of functions to the drive, which is achieved through its inclusion of a specific set of functionality-introducing hardware components and component specifications. Shunt signals between -500 and 500 mV are converted into differential frequency outputs between 0 and 500 kHz. These signals are then sent to either the DCFB or SDCI boards or the PCCA card. Using DC positive and negative floating shunts, the VCO (voltage controlled oscillator) circuits act as the conversion points for the voltages. This card also offers the AC line currents a 10:1 current transformer attenuation. Attenuation is user-selectable using the 17 onboard configurable jumpers. If the AC line voltage ranges from 240 to 600 V, bypass the attenuators. 

Should voltages range between 601 to 1000 V, they should be included. This DS200SHVMG1A printed circuit board features many more general, Mark V Series-standardized hardware components and component specifications in its assembly beyond just its functional component inclusions. For starters, the internal assembly of this DS200SHVMG1A printed circuit board makes use of a standard number of voltage-limiting and suppressing hardware components, such as capacitors, diodes, and rectifiers. Additional voltage protection for this static-sensitive DS200SHVMG1A printed circuit board exists in the form of its normal style of PCB protective coating and the insulated rings that have been carefully installed over this DS200SHVMG1A product's factory-drilled installation holes.