GE IS200EACFG1A Exciter AC Feedback

GE IS200EACFG1A Exciter AC Feedback

Part Number IS200EACFG1A Manufacturer General Electric Country of Manufacture As Per GE Manufacturing Policy Series Mark VI/VIe Function Module Availability In StockIS200EACFG1A is an Exciter AC Feedback Board for the EX2100 excitation system. In the EX2100 Excitation Control, the Exciter Ac Feedback board (EACF) measures the exciter PPT AC supply voltage and current. The terminal board comprises three-phase voltage measuring transformers as well as terminals for two Flux/Air core coils. The voltage and current circuits' outputs are fanned out to three DB9 connections for cabling to M1, M2, and C controllers. The connection connecting EACF to the EBKP backplane board might be as long as 90 meters. 

The exciter auxiliary cabinet houses the EACF board. The board is available in three versions: EACFG1 for 480 Vrms inputs, EACFG2 for 1000 Vrms inputs, and EACFG3 for 1300 Vrms inputs. For the flux/air core input signals, high-frequency noise reduction is provided near the signal entrance point. Where applicable, cable shield terminal screws connected to the chassis ground are situated within three inches of the input screws. Exciter Voltage Measurement The G1 model accepts a single three-phase input voltage in the nominal range of 480 Vrms + 20% at 50/60 Hz. The G2 model accepts a single three-phase input voltage in the nominal range of 1000 Vrms + 20% at 50/60 Hz. At 50/60 Hz, the G3 version allows a single three-phase input voltage in the nominal range up to 1300 Vrms + 20%. (1400 V for revision BAA and later). 

The secondary outputs of the potential transformers on both boards provide a nominal 1.6 Vrms. Inputs for Air Core CT/Flux Coil At 50/60 Hz, the air core current transformers give a nominal secondary output voltage of 0 to 0.8 Vrms. Application Data The three-phase voltage transformers are T1 through T4. Individual screw connectors TB1, TB2, and TB3 are for the voltage inputs. Terminal block TB4 is for wiring from the two Flux/Air core coils. The three 9-pin sub-D connectors, J504, J509, and J514 are for cables to the EBKP backplane for the EMIO boards. IS200EACFG1A Replacement procedure Open the auxiliary cabinet door and check any electrical circuits for power before touching them. Disconnect all cables from the EACF board with care. Remove the three screws that secure the EACF board to the mounting and the board itself. Install the new board onto the standoffs with the three screws removed in step 3 in the same location as the old one. Reconnect all connections and wires to the board as labeled, and double-check that cables are positioned properly on both ends. Close the door to the auxiliary cabinet.

ABOUT THE IS200EACFG1A

The Exciter AC Feedback Board under the part number IS200EACFG1A is part of the EX2100 Series manufactured by General Electric Company. This specific model is a G1 version of the IS200EACFG modules. The G1 version of this module can support an individual three-phase input voltage and will have a nominal range of 480 VRMS with a positive twenty percent at fifty to sixty hertz. 

The IS200EACFG1A module is also labeled within the EX2100 Series as an input/output terminal board. The module also handles most of the bridge AC voltage and current feedback as it measures the exciter power potential transformer (PPT) AC voltage supply. There are three transformers contained within the board that will measure voltage for three phases. The IS200EACFG1A can connect to an EBKP backplane model. When connecting the IS200EACFG1A and EBKP backplane boards a cable no longer than ninety millimeters in length will connect the boards. The three screw connectors which are labeled TB1, TB2, and TB3, on the IS200EACFG1A model are strictly used for voltage inputs. 

On the IS200EACFG1A there are three 9-pin connectors which are J504, J509, and J514, the connectors are used for the cables which will connect the EBKP backplanes for the EMIO boards. 

Instructions and warnings related to the operation of the product:

The following specifications must be strictly observed:

 The technical specifications and typical applications of the product system must be strictly observed.

 PERSONNEL TRAINING: Only trained personnel may install, operate, maintain or repair the product system. These personnel must be instructed on the

These personnel must be instructed and briefed on the conditions in the hazardous area.

 Unauthorised modifications: No modifications or structural changes may be made to the product system.

 Maintenance Responsibility: It must be ensured that the product system is used only under appropriate conditions and in a condition fully suitable for use.

 Working environment: The user must fulfil the specified environmental conditions:

Safety regulations

The following safety regulations must be fully observed when (maintenance) work is carried out on the product system:

1 Disconnect completely.

2 Secure to prevent reconnection.

3 Confirm that the installation has been completed.

4 Perform grounding and short-circuiting.