DS200PCCAG6A - DC2000 Power Connect Card

SPECIFICATIONS:

Part Number: DS200PCCAG6A
Manufacturer: General Electric
Product Type: Power Connect Card
Series: Mark V
Input Voltage: 24 VDC
Output Voltage: 12 VDC
Power Rating: 2000W
Efficiency: 90%
Operating Temp: -20�C to 70�C
Dimensions: 160 x 100 x 50 mm
Weight: 1.5 kg
Output Ripple: 100 mV peak-to-peak
Control Interface: I2C, Digital PWM
Mounting: DIN Rail Mounting
Protection: Overcurrent, Overvoltage
Availability: In Stock
Country of Origin: USA

FUNCTIONAL DESCRIPTION:

DS200PCCAG6A is a DC2000 Power Connect Card manufactured and designed by General Electric as part of the Mark V Series used in GE Gas Turbine Control Management Systems. The GE Power Connect Card, or PCCAG6A board, acts as a key interface between the drive�s control circuitry and the SCR power bridge in the GE EX2000 Excitation Control System. It transmits control signals from the drive to the SCR bridge using pulse transformers, which provide electrical isolation while ensuring accurate gate drive delivery. This design safeguards sensitive control electronics and maintains stable and reliable system operation.

For low-to-medium horsepower controllers, the PCCA board also includes snubber circuits that suppress voltage spikes across AC lines, the DC bus, and SCR gate drivers, protecting components from transient surges. In higher horsepower systems, some or all snubber circuits are relocated off the PCCA board to other parts of the system to handle increased electrical stress, ensuring effective protection and consistent SCR performance.

BOARD GROUPS:

The GE Power Connect Card is organized into ten distinct group numbers, each corresponding to specific system configurations. The selection of a particular group number depends on factors such as system voltage, frame size, and whether the system operates in a regenerative or non-regenerative power conversion mode. Each group number determines the armature voltage scaling and the configuration of internal connections, ensuring that the board functions correctly within its designated system.

• G1, G7, G9 � Designed for regenerative systems operating in the 240�630 V range.
• G2, G8, G10 � Designed for non-regenerative systems operating in the 240�700 V range.

The PCCAG6A board includes four configurable wire jumpers�JP1, JP2, WP3, and WP4�that allow engineers to select the appropriate system voltage and control how the snubber capacitors are connected. Proper configuration of these jumpers is critical for stable SCR operation and protection against voltage spikes, ensuring optimal performance for both low- and high-horsepower applications.

CONFIGURABLE JUMPERS (JP and WP):

The Power Connect Card includes four configurable wire jumpers, JP1, JP2, WP3, and WP4, which allow precise customization of the board�s electrical connections to match system requirements.

• JP1 and JP2: These jumpers must be connected to the appropriate stab terminals (P3 through P10) based on the PCCA group number and the system voltage. Proper configuration ensures the board operates with the correct voltage scaling for the armature and delivers accurate gate drive signals to the SCR bridge.

• WP3 and WP4: WP3 connects stab terminals P2A to P2B, and WP4 connects P1A to P1B. These jumpers determine whether the PCCA snubber capacitors share the same connection point on the power bridge as the voltage feedback channel. This configuration is essential for controlling voltage transients, ensuring stable SCR firing, and protecting the drive�s power components.

By carefully setting these jumpers, engineers can optimize the board for regenerative or non-regenerative systems, low- or high-horsepower controllers, and specific voltage requirements, guaranteeing reliable and safe operation of the excitation control system.

WOC maintains the largest and most comprehensive inventory of replacement parts for GE Speedtronic Gas Turbine Control systems, ensuring rapid access to critical components when uptime is essential. We offer a full range of warranty-backed unused and rebuilt boards, along with expert repair services for boards that are damaged or no longer functioning at optimal performance. Our team of experienced professionals is available 24/7 to provide technical guidance, OEM support, and solutions tailored to your specific automation and control system needs. From sourcing high-quality replacement parts to repairing complex control boards and advising on system integration, We dedicated to helping you maintain reliable, efficient, and safe turbine operations. Customers can easily reach our knowledgeable staff by phone or email to check pricing, availability, or to request personalized support, ensuring minimal downtime and maximum performance for their critical control systems.

FREQUENTLY ASKED QUESTIONS:

What is the DS200PCCAG6A?

It interfaces the drive control circuitry with the SCR power bridge, transmitting forward and reverse gate pulses through pulse transformers. Low- to medium-horsepower systems use integrated snubber circuits to suppress voltage spikes, while high-power systems may relocate these circuits off-board.

What is the function of the pulse transformers on the DS200PCCAG6A?

Pulse transformers provide galvanic isolation between the low-voltage control circuitry and the high-power SCR bridge. They deliver fast, high-fidelity gate drive pulses for accurate SCR triggering. This prevents voltage transients and electromagnetic interference from affecting the control electronics. The result is precise, reliable excitation control for turbine operations.

Why are snubber circuits included on the Power Connect Card?

Snubber circuits mitigate high-frequency voltage transients across AC lines, the DC bus, and SCR gate drivers. This prevents misfiring, electrical noise, and damage to power electronics. Low- and medium-power systems include onboard snubbers, while high-power systems may relocate them off-board.