High voltage circuit breaker is the one of most important controlling equipment in power system. The number of HV circuit breaker is the largest one in grid, required operational condition and technology is a little complicated, its operational reliability is not only impact itself, but also impact other equipment and even the whole grid. So, high voltage switch dynamic characteristics testing is very important thing, but traditional method for HV circuit breaker dynamic characteristics testing is operational complication、low testing accuracy disadvantages and so on, in order to resolve those problems, our company designed ZGKC-6 HV switch dynamic characteristics testing instrument.

A, Product technical parameters

（1）operational condition

Power input： 220V±10% 50Hz±10%        

Atmospheric pressure： 86～106kpa

Temperature： －10～40℃                  

Humidity： ≦80%RH

（2）Safety index

Insulated resistance： ＞2MΩ

Dielectric strength：Power to shell power frequency 1.5KV withstand voltage 1 minute，no flashover and flying arc.

（3）Basic parameters

a)       Time：range 4000.0ms           resolution 0.1ms

　　　   Error ①in 100ms       0.1ms±1 bit

               ②above 100ms        0.1%±1 bit

　　　　   　　③ same period

b)      Speed： range　20.00m/s           resolution 0.01m/s

          Error　①in 0-2m/s       ±0.1m/s±1 bit

                  ②above 100ms        ±0.2m/s±1 bit

c)        Range：

d)      Current： Range 20.00A            Resolution 0.01A

e)       Power output： DC30～250V digital & tunable/20A（instantaneous working）

f)        Overall dimension： 360mm(L)×280mm(W)×300mm(H)

g)       Weight： 9kg

B, Performance and characteristics

（1）Time：12 fractures have existed breaking、closing time，same phase same time、interphase and same time.

（2）Reclosing switch：each fracture close-break，break－close，break－close－break process time：one break time、one close time、second close time、golden short time、no current time value.

（3）Bounce：each fracture closing bounce time，bounce times，bounce process，bounce waveform; each fracture break rebound amplitude.

（4）Speed：just break and close speed，max speed，time-route characteristic curve.

（5）Route：overall route，spacing，over-travel，overshoot impulse travel，rebound amplitude.

（6）Current：break-close switch circuit’s break、close current value and current waveform graph.

（7）Working voltage：Internally provide DC30～250V/20A digital tunable breaker action power，auto complete breaker low voltage working testing, measure breaker working voltage.