IS2020JPDFG01 - 125 V Power Distribution Board

SPECIFICATIONS:

Part Number: IS2020JPDFG01
Manufacturer: General Electric
Series: Mark VIe
Product Type: 125 V Power Distribution Board
Number of channels: 12 channels
Board Rating: 125 V dc
Generator current inputs: 0 to 5 A
Analog inputs Current inputs: 4-20 mA
Analog output current: 0-20 mA
Size: 15.9 cm high x 17.8 cm
Operating Temperature: -30 to +65°C
Frequency: 50 or 60 Hz
Repair: 3-7 Day
Availability: In Stock
Weight: 2 lbs
Country of Origin: United States
Manual: GEH-6721L

FUNCTIONAL DESCRIPTION:

IS2020JPDFG01 is a 125 V Power Distribution Board Manufactured and designed by General Electric as part of the Mark VIe Series used in GE Distributed Turbine Control Systems. The 125 V Power Distribution (JPDF) board accepts redundant 125 V dc power inputs and distributes power to other system boards. JPDF works with a floating dc bus that is centered on Earth rather than with a grounded system. This permits detection of a system ground fault and carries a non-hazardous live 125 V dc rating. Input 125 V dc battery power is connected to a terminal board on the IS2020JPDF module. The power is then routed through a 125 V dc 30 A circuit breaker and line filter before being connected to the IS200JPDF board through the J1 connector. Dc voltage is then routed to three fused, non-switched outputs and six fused, switched outputs. Ac power is routed through the board to the DACA modules where it is converted to dc power. Dc power returns to JPDF where it is combined with the battery power input. JPDF can operate with any combination of one or more inputs creating a high-reliability source of 125 V dc power for the control system. The IS2020JPDF module provides full status feedback using a connection to a PPDA I/O pack. Feedback includes bus magnitude, ground fault detection, and detection of excessive ac voltage on the dc bus. Each fused branch circuit is monitored to indicate the presence of output power.

COMPATIBILITY:

The IS2020JPDF is compatible with the feedback signal connectors, P1/P2, on JPDB, JPDE, JPDS, and JPDM leading to a PPDA I/O pack. Connector JAF1 is compatible with the ac power output on the IS2020JPDB module. Connectors JZ2 and JZ3 are compatible with the connectors on the IS2020DACA module.

INSTALLATION:

The IS2020JPDF module is base-mounted vertically on a metal back base in a cabinet used by the PDM. A connection must be made between the IS2020JPDF sheet metal and the system protective earth (PE). Input battery power is applied to terminals DCHI and DCLO. If one or two DACA modules are used, ac power is applied to JAF1, typically from an IS2020JPDB module. DACA modules connect to JPDF through connectors JZ2 and JZ3. Output circuits are connected as documented for the system. A power distribution system featuring a PPDA power diagnostic I/O pack requires a 50-pin ribbon cable from JPDF connector P1 to the P2 connector on the board holding PPDA. This connection can pass through other core PDM boards using the P2 connector.

OPERATION:

Dc battery power is applied to terminals DCHI and DCLO. It then goes through a 30 A dc circuit breaker into a filter assembly located under the IS200JPDF circuit board. Filtered output is then passed through a series diode to the JPDF circuit board. Ac power is applied to the JAF1 connector. The 115/230 V ac is routed to two connectors, JZ2 and JZ3, and out to two DACA modules. The DACA modules convert the ac power to 125 V dc. The dc power returns to JPDF through the same JZ2 and JZ3 connectors and is combined with battery power if present.

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FREQUENTLY ASKED QUESTIONS:

Why is a 125 V Power Distribution Board necessary in turbine control systems?

Turbine control systems require precise and reliable power distribution to ensure the proper functioning of sensitive electronic components, sensors, and actuators. The distribution board regulates voltage, provides protection against overloads and faults, and facilitates efficient power management.

What safety features are typically included in a 125 V Power Distribution Board for turbine control systems?

Safety features may include circuit breakers, fuses, surge protection devices, and ground fault protection. These components help prevent electrical hazards, such as short circuits and overloads, which could damage equipment or compromise system safety.

How does a 125 V Power Distribution Board integrate with turbine control panels and other components?

The distribution board is designed to interface seamlessly with turbine control panels, sensors, actuators, and other electrical components within the system. It provides the necessary power supply while ensuring compatibility and coordination with the control system architecture.