The KDGK-MH high-voltage circuit breaker comprehensive action characteristic running in test bench system is based on the new "High Voltage AC Circuit Breaker" GB1984-2003 as the design blueprint, referring to the Chinese power industry standard "General Technical Conditions for High Voltage Testing Equipment" Part 3, DL/T846.3-2004 as the design basis, providing convenience for dynamic analysis of various circuit breakers, and accurately measuring parameters of low oil, high oil, vacuum, sulfur hexafluoride and other high-voltage circuit breakers of various voltage levels. High voltage circuit breakers play a dual role in control and protection in the power system, and their performance directly affects the safe operation of the power system.

Function and characteristic
1. Operation function: This running in device can complete the running in life test of various types of AC/DC circuit breakers, load switches, permanent magnet switches, and other circuit breakers.
2. Operating power supply: This running in device adopts reclosing operations such as single opening, single closing, closing, opening, closing, etc. according to preset parameters, and undergoes life testing. The operating power supply adopts a self-designed high-power DC high-precision operating power supply, with stable power supply voltage and no voltage drop after being loaded with coils.
3. Alarm function: Especially in terms of switch contact signal detection, the detection method adopted by this product effectively detects the leakage and misconnection of various signal point lines. This equipment can test various brands and models of indoor and outdoor high-voltage circuit breakers, bringing customers more convenient and efficient debugging and testing.
4. Protection function: After issuing the close (open) command, after an appropriate delay (the delay time can be set by the customer themselves)
To automatically cut off the power supply for closing (opening), to prevent the closing (opening) coil from being charged for a long time due to circuit breaker refusal or inadequate switching of auxiliary switches.
5. Fracture status: All have indications for fracture closure and disconnection status. Customers can monitor the current operational status in real-time, making it clear at a glance.
6. Break in type: preset break in type and set parameters.

Main technical parameters
1. Usage environment
Input power supply: 220V ± 10% 50Hz ± 10%; Atmospheric pressure: 86-106kPa
Temperature: -10~40 ℃; Humidity: ≤ 80% RH
2. Security performance
Insulation resistance:>2M Ω
Dielectric strength: The power supply can withstand a power frequency of 1.5kV on the casing for 1 minute without flashover or arcing.
3. Display mode: AC voltage, four position LED, DC voltage, four position LED, contact signal, high brightness LED indicator light
4. Voltage output: AC 0-250V, DC 0-250V

5. Current output: AC0-5A
6. Wiring method: VS1 handcart type aviation plug, terminal post
7. Function implementation: energy storage, closing, opening, locking, manual testing, automatic running in