GE IS200ESELH2AAA Exciter Selector Board
The IS200ESELH2A Exciter Selector Board (ESEL) mounts in the control rack and receives six logic level gate pulse signals from its corresponding
master I/O (EMIO) board. It then uses the pulse signals to drive six sets of cables which are distributed to the exciter gate pulse amplifier (EGPA)
boards. The EGPA boards are mounted in the Power Conversion Cabinet.
Three groups of ESEL boards are available supporting increasing redundancy levels:
• ESELH1 contains a single bridge driver controlling one PCM
• ESELH2 contains three bridge drivers controlling three PCMs
• ESELH3 contains six bridge drivers controlling six PCMs
Board Control
For simplex systems, only one ESEL is necessary, but if redundancy control or online repair is required, then two ESELs are supplied. Either ESEL 1 or ESEL 2 can be active depending on which controller, M1 or M2, is active as determined by controller C. Refer to the figure below. ESEL 1 is always driven by M1, and ESEL 2 by M2. Controller M1 is the default.
Operation. The selectors direct six gating commands from either M1 or M2 under the control of C. All power required to command the six EGPAís is supplied by the active master.
Failure of C. Loss of control power to C dedicates M1 as the active master.
Status Feedback. The ESEL feeds back which of the two masters has been selected as active to its master.
Reliable Fanout. Final output accurately fans out all six commands from either M1 or M2, but never both simultaneously. If one fanout circuit fails, the other fanout circuits are not influenced.
Technical Specifications
| Manufacturer |
GE |
| Part Number |
IS200ESELH2AAA |
| Ordering Information |
IS200ESELH2AAA |
| Product Catalog |
EX2100 |
| Description |
Exciter Selector Board |
| Connectors |
P1 and P2 |
| Functional Revision |
A |
| Dimensions |
18 cm × 12 cm × 12 cm |
| Weight |
1 kg |
100% brand new and original,All the goods will be tested before shipment.
For the in stock items, we will send the order out within 5-7 days after receive the payment.
Global supplier of quality automation and control components.
Topteng offers a 12-month warranty from the date of delivery.
In the event of non-conforming product ( if damaged or incorrect product is received ),
Any nonconformity must be reported within 7 days of receipt of goods.
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