DS3800NPCG - Snubber Board

SPECIFICATIONS:

Part No: DS3800NPCG
Manufacturer: General Electric
Series: Mark IV
Product Type: Snubber Board
Input Signal Range Voltage: ±10 V or 4-20 mA
Signal Input Type: Analog (±10V, 4-20mA)
Frequency Response: DC to 5 kHz
Output Power Voltage: Up to ±100 V
Frequency Response Range: 0 Hz to 10 kHz
Mounting: Standard mounting
Operating Temperature Range: -20°C to +85°C
Country of Origin: USA
Availability: In Stock

FUNCTIONAL DESCRIPTION:

DS3800NPCG is a Snubber Board manufactured and designed by General Electric and is part of the Mark IV Series used in GE Speedtronic gas turbine control systems. It’s used to protect the turbine's control system and other sensitive electronic equipment from electrical transients, such as voltage spikes or surges. These transients can occur due to switching operations, faults, or other disturbances in the power supply or control circuits. The primary role of a snubber is to absorb or dampen the effects of these electrical surges, ensuring that the control system operates within safe electrical limits and preventing damage to sensitive components. It typically consists of resistors and capacitors configured in a specific arrangement to effectively dissipate the energy from the transients.

FUNCTIONS OF SNUBBER BOARD:

• Surge Protection: The snubber board helps to absorb voltage surges or spikes caused by switching operations, faults, or electromagnetic interference. By doing so, it prevents these transients from reaching sensitive control components, which could otherwise damage them.

• Damping High-Frequency Noise: It reduces high-frequency electrical noise that may be generated by electrical equipment or external sources. This noise can interfere with the signals within the turbine control system, affecting its performance.

• Limiting Voltage Spikes: In turbine control systems, voltage spikes can occur during the operation of power switches or when there are sudden changes in load. The snubber board limits these voltage spikes, protecting sensitive components like transistors, microcontrollers, and relays from damage.

• Improving Signal Integrity: The snubber board helps to maintain stable signal levels in control systems by filtering unwanted high-frequency signals. This ensures that the control signals are clear and unaffected by transient disturbances, improving overall system reliability.

• Enhancing System Longevity: By preventing the over-voltage and noise conditions that can degrade or destroy electrical components, snubber boards extend the lifespan of critical control components, reducing the frequency of replacements and downtime in turbine operations.

WOC has the largest stock of OEM Replacement Parts for GE Speedtronic Control Systems. We can also repair your faulty boards and supply unused and rebuilt boards backed up with a warranty. Our team of experts is available round the clock to support your OEM needs. Our team of experts at WOC is happy to assist you with any of your automation requirements. For pricing and availability on parts and repairs, kindly contact our team by phone or email.

FREQUENTLY ASKED QUESTIONS:

What are the main components of a snubber board?

A snubber board typically consists of resistors and capacitors, and sometimes inductors, arranged to protect sensitive components from electrical transients. The resistors are used to dissipate the energy from transient surges in the form of heat, while the capacitors temporarily store the excess energy and release it safely once the surge has passed. The inductors, if present, serve to filter out high-frequency noise from the circuit.

How does a snubberboard dissipate energy from a voltage spike?

When a voltage spike occurs, the snubberboard absorbs the excess energy through the capacitor, which temporarily stores the surge and then releases it in a controlled manner. The resistor in the snubber dissipates the energy as heat, limiting the current and preventing it from reaching sensitive electronic components.

How is the capacitor value selected for a snubber board in a turbine control system?

The capacitor value in a snubber board is selected based on the energy levels and frequency of expected voltage transients. It must be large enough to absorb the energy from these transients without charging too quickly or discharging too slowly. The capacitor acts as a temporary storage device, smoothing out the surges and ensuring that the electrical system experiences minimal disturbance.