GE IS200AVFSG1A IS200AVFSG1ABB | Fan Power Supply Board

Core Function and System Role

The GE IS200AVFSG1A powers all cooling fans in Mark VI turbine cabinets. Specifically, this board converts incoming AC voltage to regulated DC output. Moreover, it distributes power to multiple fan assemblies simultaneously. The IS200AVFSG1ABB variant includes enhanced overload protection for critical cooling circuits.

Technical Specifications Overview

This fan power supply board accepts a wide range of AC inputs. The board operates from 120 Vac to 240 Vac at 50 or 60 Hz. Furthermore, it provides a regulated 24 Vdc output at 10 amperes continuous.

Parameter	Specification
Part Number	IS200AVFSG1A / IS200AVFSG1ABB
Type	Fan Power Supply Board / Cooling Power Module
Input Voltage	120-240 Vac, 50/60 Hz
Input Current	2 A Maximum
Output Voltage	24 Vdc ±5%
Output Current	10 A Continuous
Output Ripple	<100 mVpp
Efficiency	>85% at Full Load
Overload Protection	12 A Trip, Auto-recovery
Connector Types	1 x Terminal Block (Input), 2 x Terminal Blocks (Output)
Dimensions (W x H x D)	170 x 110 x 35 mm
Weight	0.65 kg
Onboard Energy Storage	2 x 1500 µF, 50V Capacitors

Connector Layout and Component Count

The board uses one terminal block for AC input connection. For instance, terminals L and N accept line and neutral wires. Meanwhile, two output terminal blocks provide 24 Vdc to fan groups. The IS200AVFSG1ABB adds a second overload relay for redundant protection.

Energy Storage and Output Stability

This fan power supply includes large capacitance for output smoothing. Specifically, two 1500 µF capacitors filter the DC output voltage. Therefore, the board maintains stable fan speed during AC line dips. Additionally, onboard LED indicators show input and output status. For example, a green LED confirms proper AC input presence. A yellow LED illuminates when DC output is active.

Diagnostic Features and Fault Protection

The board continuously monitors output current for overload conditions. Consequently, it shuts down the output within 100 milliseconds. Moreover, the GE IS200AVFSG1A IS200AVFSG1ABB includes thermal shutdown for overheating protection. This feature prevents damage from sustained high loads or blocked fans. An onboard status relay reports any fault to the main controller.

Maintenance and Hot Replacement

You can replace this fan power supply without shutting down the turbine. Thus, mean time to repair remains under ten minutes. The board stores no configuration data locally. Therefore, you simply install the replacement and restore normal cooling operation.

Industrial Applications

This fan power supply board works inside GE Mark VI control cabinets. For reliable GE cabinet cooling, the IS200AVFSG1A and IS200AVFSG1ABB deliver exceptional performance. They provide stable DC power for steam and gas turbine enclosure fan systems.