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    DS200PTCTG1A can be sourced from Apter Power for matching EX2000 installations.

DS200PTCTG1A

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General Electric DS200PTCTG1A is an EX2000 potential-transformer/current-transformer board that isolates and scales generator voltage and current feedback.
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Technical specifications for DS200PTCTG1A

  • Manufacturer:
    General Electric
  • Part Number:
    DS200PTCTG1A
  • Product Family:
    GE Excitation Control
  • Product Type:
    EX2000 PT/CT Signal Conditioning Board
  • Stock:
    1
  • Board Function:
    PT/CT isolation and scaling
  • Control Platform:
    EX2000 PWM
  • PT Capacity:
    Up to three three-phase sets
  • Nominal PT Secondary:
    120 V ac
  • CT Input:
    Phase A and phase C
  • Nominal CT Secondary:
    5 A; adjustable to 3 A
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals PT Inputs CT Inputs Signal Scaling Control Link

Features:

  • Isolates and scales generator PT and CT feedback for the EX2000 regulator.
  • Accepts as many as three three-phase PT sets with nominal 120 V secondaries.
  • Routes conditioned analog signals to the TCCB through the JKK ribbon interface.
DS200PTCTG1A separates high-level transformer feedback from the low-level transducer circuitry used by the regulator.

Its PT paths support generator control, optional failure comparison, and a separate line-side voltage input.

Phase A and phase C current feedback supplies regulator, limiter, metering, and optional stabilizer calculations.

The General Electric DS200PTCTG1A EX2000 PT/CT Signal Conditioning Board may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
General Electric DS200PTCTG1A EX2000 PT/CT Signal Conditioning Board Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

Voltage-Feedback Arrangement

  • Input Sets: As many as three three-phase PT sets can terminate at the board.
  • Nominal Level: The standard PT secondary level is 120 V ac.
  • Generator Sets: Two PT sets can provide generator-side voltage feedback and failure comparison.
  • Line Set: A third set can provide line-side voltage for optional matching.

Current-Feedback Arrangement

  • Measured Phases: Phase A and phase C CT signals are required by the EX2000 regulator.
  • Standard Level: The nominal current-transformer secondary input is 5 A.
  • Adjustment Range: Software scaling accommodates nominal CT values down to 3 A.
  • Control Use: Conditioned current feedback supports regulation, limiting, metering, and stabilization functions.

Isolation and Analog Range

  • Transformer Isolation: PT and CT inputs cross isolation transformers before reaching the control electronics.
  • Voltage Scaling: The board scales PT secondaries for the downstream transducer circuits.
  • Current Scaling: CT signals are conditioned to represent generator stator current.
  • Auxiliary Range: Additional channels accept either ±10 V dc or 4-20 mA signals.

PTCT-to-TCCB Path

  • JKK Connector: A ribbon connection carries isolated secondaries from PTCT to TCCB.
  • VCO Stage: TCCB voltage-controlled oscillators convert the analog levels into digital counts.
  • Processor Data: Calculated generator values pass from TCCB to the LDCC control processors.
  • Revision Setting: EX2000 configuration distinguishes revision-A and revision-B PTCT input behavior.
Description
General Electric DS200PTCTG1A is the PTCT signal-conditioning board in the EX2000 PWM digital exciter, where it isolates and scales generator potential-transformer and current-transformer feedback.

Up to three sets of three-phase PT inputs can connect through General Electric DS200PTCTG1A. Two sets provide generator-voltage feedback and optional PT-failure comparison, while a third can supply line-side voltage for matching functions.

For current feedback, General Electric DS200PTCTG1A accepts phase A and phase C signals from a two-phase CT set with a nominal 5 A secondary; software adjustment also supports nominal values down to 3 A.

The isolated secondary signals leave General Electric DS200PTCTG1A through the JKK ribbon connection for conversion on the TCCB board, while auxiliary channels accommodate either ±10 V dc or 4-20 mA signals.
Alternative Names
GE DS200PTCTG1A General Electric DS200PTCTG1A DS200-PTCT-G1A DS200 PTCT G1A GE EX2000 PTCT Board General Electric PT CT Signal Conditioner DS200PTCTG1-A DS200PTCTGIA
Technical notes
General Electric DS200PTCTG1A isolates and scales EX2000 generator PT and CT feedback before routing it to the TCCB transducer board.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
How does DS200PTCTG1A connect to the TCCB board?
General Electric DS200PTCTG1A routes isolated transformer secondary signals to the TCCB through the JKK ribbon connector.
How many PT sets can enter DS200PTCTG1A?
Up to three three-phase potential-transformer sets are supported by General Electric DS200PTCTG1A.
Which CT phases are used by DS200PTCTG1A?
General Electric DS200PTCTG1A uses phase A and phase C current-transformer inputs for EX2000 feedback.
What secondary current is expected at DS200PTCTG1A?
A nominal 5 A CT secondary is standard for General Electric DS200PTCTG1A, with software adjustment available down to 3 A.
Can DS200PTCTG1A accept auxiliary analog signals?
Auxiliary channels on General Electric DS200PTCTG1A support either ±10 V dc or 4-20 mA signals.
Why are PT signals isolated on DS200PTCTG1A?
Isolation and scaling on General Electric DS200PTCTG1A prepare generator-voltage feedback for digital conversion and regulator calculations.

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