DS200FHVAG1ADA GE EX2100 High Voltage Gate Interface Board

Description:

3-4.7. FHVA Board (DS200FHVA)
This board contains a potential hazard of electric shock or burn. Do not touch the board or attempt to make measurements when the board is under power. When operating, the FHVA is at SCR potential, which can be several thousand volts above ground.

The FHVA serves as an SCR gate interface and cell voltage monitor. It provides an isolated path for gate power from the FGPA board to the SCR with noise protection. The LCI uses one FHVA for every SCR.

The FHVA includes current sensors to detect whether the SCR is conducting or blocking voltage. It sends this cell status data to the FGPA board, and turns on its red C STAT LED if blocking voltage is detected.

For more detailed information on the FHVA, see publication GEI-100224.

The FGPA is the LCI’s gate driver, switching power supply, and SCR status monitor. The board receives gating commands from the LCI control (via fiber-optic cables). Each FGPA supplies gate power of sufficient magnitude and duration for one phase of an SCR bridge. It sends this to CTs on the FHVA boards, which provide an interface to the SCRs.

The switching power supply circuit converts ac input to the dc control voltages required for status and gating functions. It receives 120 V ac input from a power supply and produces the following voltages:
• P5 (4.7 – 5.1 V dc) for logic power
• P15 (13.5 – 14.5 V dc) not monitored
• P40 (25 V dc) for gate “back porch”
• P90 (80 V dc) to start gating
As a status monitor, the FGPA accumulates SCR voltage information from the FHVA boards, and transmits the data to the LCI control. This includes status of the switching power supply.

For more detailed information on the FGPA, see publication GEI-100223.

Frequently Asked Questions:

1.Does the customer arrange for the inspection before the goods are shipped?

Confirmed acceppted this issue

2.What is the payment term?
Only wire transfer

3.When does the warranty period start?
One year from the time the client receives the goods

Datasheet Link:

DS200FHVAG1ADA GE EX2100 High Voltage Gate Interface Board PDF Datasheet