1. Dual Independent Simulators: The WDS-2 houses two separate circuit breaker simulators within a single unit, allowing for simultaneous testing of two different breaker operations.
2. Phase Operation Simulation:
   • Three-Phase: Simulates the operation of a three-phase circuit breaker.
   • Single-Phase: Also capable of simulating single-phase breaker operations, providing flexibility for various testing scenarios.
3. Trip Coil Simulation:
   • Single Trip Coil: Simulates breakers with a single trip coil.
   • Double Trip Coil: Can also simulate breakers with double trip coils, which are used for additional safety.
4. Coil Input Terminals: Includes simulated closing and opening coil input terminals, crucial for testing the response of the breaker's coils.
5. Independent DC Output: Provides an independent DC output of either 110V or 220V, which can be used to power other devices or simulate different power supply conditions.

1. Input Voltage Range: The tripping and closing input voltage can range from DC 40V to 250V, accommodating a wide range of operating conditions.
2. Coil Resistance Options: Allows selection of trip coil resistances at 100Ω, 200Ω, or 400Ω to match different breaker specifications.
3. Timing Adjustments:
   • Closing Time: Adjustable from 20ms to 500ms in 20ms steps.
   • Tripping Time: Adjustable from 20ms to 110ms in 10ms steps, enabling precise control over the breaker’s response time.
4. Output Contact Capacity:
   • DC: 110V at 5A.
   • AC: 220V at 30A, suitable for handling significant loads.
5. Power Supply: Operates on AC220V ±10% at 50/60Hz, ensuring compatibility with standard power sources.
6. Physical Dimensions and Weight: Measures 380x250x180mm and weighs 10kg, making it relatively compact and portable for a device of its capabilities.

Why Choose the Circuit Breaker Simulator WDS-2?

The WDS-2 is an essential tool for those involved in the design, testing, and maintenance of electrical systems. It allows for thorough testing of circuit breakers without the need for actual physical breakers, which can be costly and logistically challenging. By simulating various operational scenarios, it helps ensure that the relay schemes and breakers will perform reliably in real-world applications.