Description
Technical Parameters
Product Introduction
IS200TRLYH1B is a relay terminal board for GE Mark VI steam turbine control system. It can perform various tests such as electrical overspeed trip test, mechanical trip piston test, mechanical overspeed trip test, etc. to ensure system safety. As a terminal relay card, it receives controller signals, controls the operation of steam turbine related equipment, and achieves precise control.
Technical Specifications
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Manufacture |
General Electric(GE) |
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Model |
IS200TRLYH1BED |
| Part Number | IS200TRLYH1B |
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Description |
Mark VI Terminal Board
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Origin |
USA |
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Dimension |
30*20*10cm |
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Weight |
0.65kg |
Product Details
IS200TRLYH1B appearance structure:
Terminal blocks: There are two large black terminal blocks on the left edge, each with 24 silver metal terminals, a total of 48, all with white markings.
Connector ports: There are 4 connector ports on the right edge, 3 of which are arranged vertically and 1 is located parallel at the bottom.
Relays: There is a row of white and black relays with transparent cube housings near the center, with black round transistors and red metal oxide varistors on both sides.
Terminal blocks: There are two large black terminal blocks on the left edge, each with 24 silver metal terminals, a total of 48, all with white markings.
Connector ports: There are 4 connector ports on the right edge, 3 of which are arranged vertically and 1 is located parallel at the bottom.
Relays: There is a row of white and black relays with transparent cube housings near the center, with black round transistors and red metal oxide varistors on both sides.
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Number of relay channels on one TRLY_1B board
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12:
6 relays with optional solenoid driver voltages
5 relays with dry contacts only
1 relay with 7 A rating
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Rated voltage on relays
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Nominal 125 V dc or 24 V dc
Nominal 115/230 V ac
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Max load current
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0.6 A for 125 V dc operation
3.0 A for 24 V dc operation
3.0 A for 115/230 V ac, 50/60 Hz operation
6 A at 115 V ac for relay 12 only
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Relay contact rating
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24 V dc voltage current rating 10 A, resistive current rating 2 A, L/R = 7 ms, without suppression
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125 V dc voltage current rating 0.5 A, resistive current rating 0.2 A, L/R = 7 ms, without
suppression
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125 V dc voltage current rating 0.5 A, resistive current rating 0.65 A, L/R = 150 ms,
with suppression (MOV) across the load
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Contact life
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Electrical operations: 100,000
Mechanical operations: 10,000,000
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Fault detection
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Loss of relay solenoid excitation current
Coil current disagreement with command
Unplugged cable or loss of communication with I/O board: relays de-energize if
communication with associated I/O board is lost
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Product Diagnostics:
Diagnostic tests to components on the terminal boards are as follows:
• The output of each relay (coil current) is monitored and checked against the command at the frame rate. If there is no agreement for four consecutive frames, an alarm is generated.
• The solenoid excitation voltage is monitored downstream of the fuses and an alarm is latched if it falls below 12 V dc.
• If any one of the outputs goes unhealthy a composite diagnostics alarm,L3DIAG_xxxx occurs.
• When an ID chip is read by the I/O processor and a mismatch is encountered, a hardware incompatibility fault is created.
• Each terminal board connector has its own ID device that is interrogated by the I/O pack/board. The connector ID is coded into a read-only chip containing the board serial number, board type, revision number, and the JA1/JR1/JS1/JT1 connector location. When the chip is read by the I/O processor and mismatch is encountered, a hardware incompatibility fault is created.
• Relay contact voltage is monitored.
• Details of the individual diagnostics are available in the configuration application.The diagnostic signals can be individually latched, and then reset with the RSTDIAG signal if they go healthy
Application areas:
Mainly used in steam turbine control systems in the power and energy industries, and also in power systems in the petrochemical, metallurgical, papermaking and other industrial fields to ensure the safe and stable operation of steam turbines.