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IS200EPSDG1AAD - Exciter Regulator Power Supply Daughter Board is available in stock which ships the same day.
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SPECIFICATIONS:
Part Number: IS200EPSDG1AAD
Manufacturer: General Electric
Series: EX2100e
Product Type: Exciter Regulator Power Supply Daughter Board
Number of channels: 12
Input span: 4-20 mA
Technology: Surface Mount
Common Mode Voltage Range: �5 V
Maximum Lead Resistance: 15 Ohms
Analog output current: 0-20 mA
Operating temperature: -30 to 65 Deg C
Size: 8.26 cm high x 4.19 cm
Repair: 3-7 Days
Availability: In Stock
Country of Origin: United States
FUNCTIONAL DESCRIPTION:
The IS200EPSDG1AAD is an Exciter Regulator Power Supply Daughter Board, manufactured and designed by General Electric as part of the EX2100e Series used in GE Excitation Control Systems. The EPSDG1AAD Exciter Power Supply Module (EPSM) is utilized in both the EX2100 Excitation Control System and the EX2100 Regulator Control. EPSM Group 1 modules (EPSMG1) are used in the excitation control system, while EPSM Group 2 modules (EPSMG2) are used in the regulator control. EPSMG2 includes the EPSDG1AAD Exciter Regulator Power Supply Daughter Board (EPSD) mounted to it. The EPSM consists of two major sections: a buck regulator and a push-pull inverter. The buck regulator converts the input voltage to a 50 V DC intermediate voltage. This intermediate voltage is then applied to a push-pull inverter to generate the required multiple output voltages. The transformer used in the push-pull inverter provides high-voltage isolation between the input voltage source and the output supplied to the control system.
EX2100 EXCITATION CONTROL SYSTEM APPLICATION:
EPSDG1AAD converts 125 V dc from the power distribution module (PDM) into the voltages required for the EX2100 excitation control. There are three independent EPSMG1s that supply power to each of the controllers, M1, M2, and C. They are mounted in the IS200EPBPG_A Exciter Power Backplane (EPBP) located below the IS200EBKPG_A Exciter Backplane (EBKP) in the control cabinet. Connectors P1 and P2 carry power from the EPSMG1 to EPBP for cables to EBKP and other boards. The EPSMG1 supplies +5 V dc, �15 V dc, and +24 V dc to the control assembly backplane. Power is also supplied to external modules as follows:
EX2100 REGULATOR CONTROL APPLICATION:
EPSMG2 converts the dc link bus voltage into the voltages required for the EX2100 regulator control. In simplex systems, one EPSMG2 is mounted in the IS200ERBPH_A Exciter Regulator Backplane (ERBP). In redundant systems, one EPSMG2 is mounted in ERBP (M1) and a second EPSMG2 is mounted in the IS200ERRBH_A Exciter Regulator Redundant Backplane (ERRB, M2/C). The EPSD that is mounted on EPSMG2 modifies the power input path to allow EPSMG2 to accept higher voltages by increasing the creep and clearance. It also provides a fuse between the regulator power source (DC link) and the buck-regulator.
WORLD OF CONTROLS offers the largest stock of GE Excitation Control System replacement parts, including unused and fully rebuilt units, all backed by a warranty. In addition to supplying parts, we provide expert repair services for faulty boards, ensuring reliable performance and minimal downtime. Our experienced team is available 24/7 to support all your OEM and automation requirements, offering technical guidance, troubleshooting, and parts selection. For pricing, availability, or repair inquiries, contact our team by phone or email�WOC is committed to keeping your systems running efficiently and reliably.
What is the IS200EPSDG1AAD?
The IS200EPSDG1AAD is an Exciter Regulator Power Supply Daughter Board used in GE EX2100e Series Excitation Control Systems. It converts DC-link voltages into multiple isolated outputs to power the regulator control, IGBT gate drives, ground-detection circuits, and other system modules. It is a key component of the EPSM Group 2 (EPSMG2) module.
What are its main specifications?
The board has 12 channels with a 4�20 mA input span, �5 V common-mode voltage range, and 0�20 mA analog output. It operates in temperatures from -30 Deg C to 65 Deg C, with a maximum lead resistance of 15 Ohms. The board uses surface-mount technology for precise, high-speed performance.
How does it integrate into the EX2100 system?
It is mounted on the EPSMG2 module within the Exciter Regulator Backplane (ERBP) or Redundant Backplane (ERRB) for redundant systems. The board modifies the input path for higher voltage tolerance, provides a fuse to protect the buck regulator, and distributes regulated power to downstream control modules via backplane connectors.
What protections are built into the board?
The IS200EPSDG1AAD features high-voltage isolation between input and output, an integrated fuse for the buck regulator, and increased creepage and clearance to safely handle higher voltages. These protections prevent overvoltage, short circuits, and system faults, ensuring reliable operation.
