The Role of Relay Protection Testers

Scope of Application

HCM-BThe circuit breaker simulator is primarily used for the overall testing of relay protection devices. This device can simulate the tripping of circuit breakers during the overall testing of relay protection devices./Closing the switch can reduce the number of switching operations, thereby extending the lifespan of the circuit breaker.,Reduce debugging time, enhance testing efficiency, and avoid the inconvenience caused by circuit breakers repeatedly opening and closing during a complete set of tests.

HCM-BSimulated circuit breakers can be paired with our company's producedHC、JJCSeries Relay Protection Testers, perform uninterrupted verification of protective devices, enhancing power supply reliability.

The circuit breaker simulator includes two testing programs: dual-coil simulation and high/low voltage simulation. Under the startup interface, pressTripping CurrentIAnd 'trip current'II'Press the button to enter the corresponding program. The difference between the two test programs lies in the trip circuit.'ICircuit breaker tripIIThe relationship with the closing loop.

Power circuit tripIAnd circuit breaker tripIIThe two circuit breakers operate independently with completely separate trip current paths. The common reference point for the trip circuits is isolated.

In the high and low voltage simulation test program, the circuit breaker tripIThe and switch circuit achieves mutual exclusion in connection and disconnection, i.e., the trip circuit.IDuring a tripping current, the simulation device switches from the closed state to the tripping state, meaning the tripping circuit is disconnected, and the closing circuit is connected, enabling the reception of a closing signal. Tripping circuitIIThe and-coil circuit is different from the trip-coil circuit.ICircuit breaker tripIIThere is a trip current., Trip circuitIIThe corresponding phase transitions to the tripping state, with the indicator light for that phase illuminating. The output contact associated with this phase changes to a closed state and the indicator light turns on, without affecting the closing circuit's status. When current is present in the closing circuit, the simulation device transitions from the tripping state to the closing state, meaning the closing circuit is opened and the indicator light turns on, while the tripping circuit...INo Chinese content provided.IIThe corresponding phase circuit is connected, simultaneously causing the corresponding phase's junction point in the output contact to close and the indicator light to illuminate.

In the dual-coil simulation test program, the circuit breaker tripIOr circuit breaker trippedIIIn the event of any phase experiencing a tripping current, the simulation device switches from the closed position to the tripping state, i.e., the tripping circuit.INo Chinese content provided.IIThe midpoint phase circuit has been disconnected, and the closing circuit for this phase has been connected, enabling it to accept closing signals while the tripping circuit...IAnd circuit breaker tripIIThe indicator light for phase Zhong Tong turns on, and the corresponding output contact's make-before-break point switches to a closed state along with the indicator light. When there is current in the closing circuit, the simulation device transitions from the trip state to the closing state, meaning the closing circuit is opened and the indicator light turns on, while the trip circuit...INo Chinese content provided.IIThe corresponding phase circuit is connected, simultaneously causing the corresponding phase's junction point in the output to close and the indicator light to illuminate.

Product Features

This device features an independent dual-circuit trip coil; it has failed and reset functions.

This device features an embedded panel touch keyboard for human-machine interaction, equipped with a high-end LCD display. It allows for intuitive and direct operation selections of experimental parameters. The design is simple and elegant, with ease of use.

The device features a user-friendly voice prompt function, which emits a sound for every normal operation executed.A beep sound will be emitted if there is an improper operation.-No Chinese content provided, please provide the news content for translation.-Three "dings" to provide a prompt.

The device utilizes a single-chip microcomputer as its control core. The low-voltage control circuit is composed of integrated circuits, optocouplers, and solid-state components, offering stable performance and precise timing control..Confirmed

Microcontroller input loops are reliably isolated from the high-voltage sections and can withstand1.5KVThe instrument is completely disconnected from the external input circuit when it is not in operation, eliminating the隐患 of the operator burning out the instrument due to prolonged inactivity, ensuring safety and reliability.