Circuit Breaker Simulation Test Device

I. Overview:

Two-way circuit breaker simulation testing device(Circuit Breaker Simulation Test Instrument)Two independent simulated circuit breakers are placed in the same enclosure, enabling the simulation of three-phase and phase-separated operations of circuit breakers, single or double trip coil circuit breakers, switch self-equipped test, and switch rejection./The action of replacing actual circuit breakers with simulated ones in relay protection and automatic equipment tests is applicable to power systems, industrial and mining enterprises, scientific research, and educational institutions. It ensures the accuracy and reliability of relay protection tests while significantly reducing the number of operations of actual circuit breakers, thereby enhancing the overall efficiency of the test process.

Dual Circuit Circuit Breaker Simulation Test Device(Circuit Breaker Simulation Tester)Both simulated circuit breakers provide directly.A、B、CSimulated phase jump/The input terminal of the closing coil, a pair of normally closed and normally open contacts from a circuit breaker position output. Select the manual trip of the simulated circuit breaker through panel operation./Circuit breaker, trip/Closing coil resistance, trip/Closing Time, Single Phase/Phase action and pre-set selection functions, thus simulating the tripping of a circuit breaker./Closing action.

Dual Circuit Breaker Simulation Test Device(Circuit Breaker Simulation Tester)Provide independent110/220VIsolated DC voltage output.

How to Use

Step One:

1During the protective circuit test using a simulated circuit breaker, after disconnecting the external outlets for the three-phase tripping and three-phase closing on the protective screen, connect the simulated circuit breaker to the corresponding tripping circuits./Closed terminal input, the negative terminal of the DC operating power supply is connected to the black common terminal of the simulated circuit breaker.-Terminal. Noticing the skip/The common terminal of the closed-circuit is separate and distinct.

2Established Connection220VPower Supply. After startup, the simulated circuit breaker is in the "Three-Phase Trip" state, with the position indicator light illuminated green. The action is preset for "Three-Phase" operation.

Step Two:  

Due to a tripped circuit breaker for equipment.../Closing Time and Trip/Setting of the circuit breaker's coil current value and trip/Closing Time Simulation of Circuit Breaker Parameters: Select the jump function of the desired simulated circuit breaker./Circuit Breaker Closing Loop Resistance(100Ω、200Ω、400Ω)Power trip occurred(30 ms~90 ms)Shut-in Time(20msOr~180 ms)、Jump/Operations such as closing circuit breaker actions and phase selection.

1Please provide the Chinese content you would like to be translated./The input terminal of the closing coil is equivalent to the trip of an actual circuit breaker./Circuit of the closing coil, tripped/The closing coil resistance is selected through the loop resistance selection button. After the instrument is powered on, the closing loop resistance jumps.200Ω。

2Outage Time:20 ms~110 msStep Length10 msThe number on the digital dial of the circuit breaker's trip time multiplied by10 msThe trip time set; the closing time (20ms~500 msStep Length20 msThe number on the closing time digital dial multiplied by20 msThe closing time as set.

3Action Phase: Select through the Action Phase switch. After the instrument is powered on, the action phase is three-phase operation, with the corresponding indicator light illuminating in a three-phase pattern. Each press corresponds to a phase operation.ABCNo Chinese content provided. Please provide the text to be translated.APlease provide the Chinese content that needs to be translated.BNo Chinese content provided, please provide the text to be translated.CPlease provide the Chinese content to be translated.ABPlease provide the Chinese content that you would like to have translated into American English.BCPlease provide the Chinese content that needs to be translated into American English.CASelects the action phase of the three-phase circulating sequence, and the corresponding indicator light illuminates.

Step 3:

Panel settings have manual skip/Push the closing button to manually trip or close the circuit breaker, selecting the corresponding phase for operation./The switch is closed. When the simulated circuit breaker is in the trip position, the trip indicator light (green) illuminates. At this point, the normally closed contact of the simulated circuit breaker's position opens, while the normally open contact is disconnected.

When the circuit breaker is in the closed position, the close indicator light (red) illuminates. At this time, the normally open contact closes while the normally closed contact opens.

Step Four:

In conjunction with the relay protection and test equipment, a comprehensive set of tests was conducted. When any one of the relays.../When there is current input in the closing circuit, the circuit breaker's action status is simulated based on the preset action parameters.

When selecting three-phase operation, any phase can be skipped./All phases are activated when the switch is closed. During phase operation, each phase's operation is separate./The closing input causes the selected action to perform its corresponding action, while the state of other phases remains unchanged.

By selecting the action phase selection button, non-input action phases can simulate switch reject and accept tests.