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IS200ESELH3A

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General Electric IS200ESELH3A is an EX2100 exciter selector board that routes six EMIO gate commands to as many as six EGPA bridge channels.
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Technical specifications for IS200ESELH3A

  • Manufacturer:
    General Electric
  • Part Number:
    IS200ESELH3A
  • Product Family:
    GE Excitation Control
  • Product Type:
    Exciter Selector Board
  • Stock:
    1
  • Functional Acronym:
    ESEL
  • Group:
    H3
  • Bridge Drivers:
    Six
  • Command Source:
    EMIO
  • Signal Destination:
    EGPA boards
  • Redundant Arrangement:
    Two ESEL boards
  • Active Selection:
    Controller C
  • 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 Pulse Distribution Redundant Selection Configuration Groups Signal Boundaries

Features:

  • Identifies the H3 selector configuration with six bridge drivers.
  • Maintains separate command sources for M1 and M2 redundancy.
  • Leaves firing-pulse amplification to the downstream EGPA boards.
The H3 suffix on IS200ESELH3A defines the largest ESEL bridge-driver arrangement.

In a redundant control, controller C determines whether the M1-fed or M2-fed selector path is effective.

Firing energy is added only after each selected logic signal reaches its assigned EGPA.

The General Electric IS200ESELH3A Exciter Selector Board is supplied by Apter Power with quotation and technical assistance.
General Electric IS200ESELH3A Exciter Selector Board Manuals, Datasheets and Links 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.

Logic-Level Fanout

  • Command Origin: Gate requests are received from the corresponding EMIO
  • Board Function: ESEL selects and distributes the logic pulses
  • Cable Fanout: Up to six cable sets leave the H3 board
  • Destinations: Each set connects to its corresponding EGPA board

M1/M2 Source Choice

  • Board Pair: A redundant control uses two ESEL boards
  • First Source: Controller M1 drives one selector board
  • Second Source: Controller M2 drives the other selector board
  • Active Path: Controller C chooses which ESEL output is used

Selector Capacity Codes

  • H1 Group: One bridge-driver path is provided
  • H2 Group: Three bridge-driver paths are provided
  • H3 Group: Six bridge-driver paths are provided
  • Current Variant: IS200ESELH3A carries the H3 six-driver assignment

Control and Bridge Roles

  • Logic Input: EMIO supplies low-level gate commands
  • Selection Stage: ESEL determines the distributed command path
  • Pulse Stage: EGPA converts each selected command into firing energy
  • Bridge Stage: The resulting pulses operate the associated SCR gates
Description
General Electric IS200ESELH3A is the H3 exciter selector board in the EX2100 control system. Its six bridge-driver paths receive logic-level gate commands associated with EMIO and distribute those commands toward the power-conversion section.

From IS200ESELH3A, as many as six cable sets carry the selected pulse signals to the corresponding EGPA boards. ESEL performs selection and distribution at logic level, while each EGPA generates the amplified firing pulses for its six SCRs.

A redundant arrangement uses two IS200ESELH3A boards, one driven by M1 and the other by M2. Controller C selects which ESEL output path is active, keeping the choice of gate-command source separate from pulse amplification at the bridge.
Alternative Names
IS200-ESEL-H3A IS 200 ESEL H3A IS200 ESEL H3A GE IS200ESELH3A General Electric IS200ESELH3A EX2100 IS200ESELH3A ESEL H3A IS200ESEL-H3A
Technical notes
General Electric IS200ESELH3A is the H3 ESEL configuration with six bridge drivers and controller-C selection between redundant M1 and M2 pulse paths.
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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.
With five bridge paths healthy and one EGPA silent, where should IS200ESELH3A troubleshooting begin?
Compare the matching EMIO logic input, selected IS200ESELH3A output and cable set for the silent EGPA before disturbing the other five paths.
After a redundant-control transfer, which selection relationship must be verified if IS200ESELH3A stops forwarding gate commands?
Verify that controller C selected the intended IS200ESELH3A path between the board driven by M1 and the board driven by M2.
Replacing an EGPA leaves the same missing pulse; what upstream IS200ESELH3A fault remains possible?
IS200ESELH3A selects and distributes logic commands upstream of EGPA, so a missing selector output or cable signal remains after an amplifier-board change.
Selecting IS200ESELH3A for an H1 or H2 position would create which configuration mismatch?
The H3 suffix on IS200ESELH3A specifies six bridge drivers; treating it as an H1 or H2 equivalent would ignore the group-specific driver count.
Technicians see logic pulses at IS200ESELH3A but no SCR firing energy; where is amplification expected?
Pulse amplification occurs on the downstream EGPA boards, while IS200ESELH3A only selects and routes the six logic-level commands.
During replacement, how can technicians avoid crossing the six IS200ESELH3A cable sets?
Keep every IS200ESELH3A output matched with its corresponding EGPA bridge path, because the selector distributes up to six separate logic-signal cable sets.