Relay Protection Test System

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 operations and extend the lifespan of the circuit breaker.,Shorten debugging time, enhance testing efficiency, and avoid the inconvenience caused by the repeated opening and closing of circuit breakers during a full group test.

HCM-BSimulated circuit breakers can be paired with our company's producedHC、JJCSeries Relay Protection Test Instruments, conduct non-stop verification of protective devices, enhancing power supply reliability.

The simulated circuit breaker includes two testing programs, namely the dual-coil simulation and the high and low voltage simulation. Under the boot-up interface, press"Overcurrent trip"IAnd '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 interrelation with the closing circuit.

Trip circuitINo Chinese content provided.IIThe circuit breakers feature two completely independent trip current loops, with the common reference point for both trip loops isolated.

In the high and low voltage simulation test program, the circuit breaker tripIThe and circuit achieves mutual exclusion in connection and disconnection, i.e., the trip circuit.IWhen a trip current occurs, the simulation device switches from the closed state to the tripped state, meaning the trip circuit is disconnected, and the close circuit is connected, allowing the close signal to be received. Trip circuitIIDifferent circuit breakers from and combined circuit breaker connectionsICircuit breaker tripIIThere is a tripping current., Trip circuitIIThe corresponding phase transitions to the trip state, simultaneously illuminating the indicator light for that phase. The output contact for that phase changes to a closed state and the indicator light turns on, which does not affect the closing circuit's status. When current is present 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 illuminates, while the trip circuit...INo Chinese content provided.IIThe corresponding phase circuit is connected, simultaneously causing the corresponding phase's contact point in the output to close and the indicator light to illuminate.

In the dual-coil simulation test program, the trip circuitIOr circuit breaker tripIIAt any phase, if there is a trip current, the simulation device switches from the closed circuit state to the tripped state, i.e., the trip circuit.INo Chinese content provided.IIThe middle phase's trip circuit has been disconnected, while its closing circuit is now energized, capable of receiving closing signals, and simultaneously the trip circuit...IAnd circuit breaker tripIIThe indicator light for the phase of Zhongtong Xiang turns on, and the corresponding output contact's jump contact changes to a closed state along with the indicator light. When there is current in the closing circuit, the simulation device transitions from the tripping state to the closing state, meaning the closing circuit is disconnected and the indicator light turns on, while the tripping circuit...INo Chinese content provided.IIThe corresponding phase circuit is connected, simultaneously, the corresponding phase's contactor in the output switch becomes closed and the indicator light illuminates.

Product Features

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

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

The device features a user-friendly voice prompt function, which emits an alert after every normal operation step is executed."Beep" if an incorrect operation is performed, the system emits a "beep."-No Chinese content provided, translation not possible.-A "beep" sound provides the prompt.

This 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..Affirmative.

Microcontroller input loop is reliably isolated from the high-voltage section and can withstand1.5KVThe instrument is completely disconnected from the external input circuit when it is not powered on, eliminating the隐患 of the operator burning the instrument due to prolonged inactivity without conducting tests, ensuring safety and reliability.