DS200SHVMG1AFE - SCR High Voltage M-Frame Interface Board

SPECIFICATIONS:

Part Number: DS200SHVMG1AFE
Manufacturer: General Electric
Series: EX2000
Product Type: SCR High Voltage M-Frame Interface Board
Input Voltage Range: -500 mV to +500 mV
Number of relay channels: 12
Power supply voltage: 28 V dc
Output Frequency Range: 0 to 500 kHz
Mounting: DIN-rail mounting
Current Attenuation: Jumper-selectable 10:1
AC Line Voltage Attenuation Bypass: 240–600 V
Technology: Surface mount
ACCT Secondary Current Rating: 144 mA maximum
Operating temperature: -30 to +65°C
Size: 15.9 cm high x 17.8 cm
Repair: 3-7 Day
Price: $$$$
Availability: In Stock
Country of Origin: United States
Manual: GEI-100174A

FUNCTIONAL DESCRIPTION:

DS200SHVMG1AFE is a SCR High Voltage M-Frame Interface Board manufactured and designed by General Electric as part of the EX2000 Series used in GE Excitation Control Systems. The SCR High Voltage M-Frame Interface Board provides an interface for signals from an M-frame drive’s SCR bridge to the DCFB or SDCI Power Supply Board and PCCA Power Connect Card. It Converts shunt signals (–500 mV to +500 mV) into differential-frequency outputs (0 to 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.

DC BRIDGE SHUNT ISOLATOR CIRCUITS:

The dc positive (+) and dc negative (−) floating shunt isolator voltage-controlled oscillator (VCO) circuits convert shunt signals from the bridge. The circuits range from −500 mV to +500 mV (0 to 500 kHz) and are fed to the DCFB board. The isolator input circuits float to the bridge potential of the dc+ and dc− voltages.

AC CURRENT TRANSFORMERS (ACCTs):

The SHVM board provides 10:1 current transformer (CT) attenuation for the ac line currents (phase A and phase C) if required. This attenuation is jumper selectable. Attenuation is required above 144 mA main line ACCT secondary current (rated DC/ACCT ratio) because the CT burden resistors on the SDCI and DCFB Power Supply Boards are not rated to handle more than 144 mA. Attenuation should be bypassed when the main line ACCT secondary current is less than 144 mA.

WOC has the largest stock of GE Speedtronic Turbine Control System Replacement Parts. We can also repair your faulty boards and supply unused and rebuilt boards backed up with a warranty. Our team of experts is available round the clock to support your OEM needs. Our team of experts at WOC is happy to assist you with any of your automation requirements. For pricing and availability on parts and repairs, kindly contact our team by phone or email.

LINE VOLTAGE ATTENUATORS L1, L2, L3:

These attenuators are used to attenuate the ac line voltage, if required, due to the ac line voltage magnitude and generator field rating. If attenuation is not required, then jumpers are to be placed in the bypass position. Attenuators should be selected as follows:

• Bypassed if the main ac line is 240 − 600 V
• Included if the main ac line is 601 − 1000 V

DC BRIDGE VOLTAGES P1 and P2:

The dc positive and dc negative voltage resistor strings are used to attenuate dc voltage, if required, due to field voltage ratings. Configurable jumpers are used to scale the dc bus voltage feedback. The setting for these jumpers is based on the nominal main ac RMS input voltage. Voltage resistor string attenuators should be bypassed if the main ac line is 240 − 600 V and included if the main ac line is 601 − 1000 V.

WOC has the largest stock of GE Excitation Turbine Control System Replacement Parts. We can also repair your faulty boards and supply unused and rebuilt boards backed up with a warranty. Our team of experts is available round the clock to support your OEM needs. Our team of experts at WOC is happy to assist you with any of your automation requirements. For pricing and availability on parts and repairs, kindly contact our team by phone or email.

FREQUENTLY ASKED QUESTIONS:

What is the purpose of the SCR High Voltage M-Frame Interface Board?

The board acts as an interface between the SCR bridge in an M-frame drive and the DCFB or SDCI Power Supply Board. It converts shunt signals into frequency outputs and provides voltage and current attenuation capabilities as needed.

What is the purpose of the DC bridge shunt isolator circuits?

The DC bridge shunt isolator circuits convert DC shunt signals (–500 mV to +500 mV) into frequency outputs (0 to 500 kHz). These signals are fed to the DCFB board for further processing.

What is the typical use case for this interface board?

The SCR High Voltage M-Frame Interface Board is typically used in high-power turbine excitation systems where precise voltage and current feedback are critical for system stability and performance.