Circuit Breaker Tester

With the development of the society,people has higher requirements for the safety and reliability of electricity,high voltage circuit breaker take on dual task of control and protection in power system,it’s good and bad performance is directly related to the safe operation of the power system,the mechanical characteristic parameters is one of the important parameters to judge the circuit breaker performance.

Circuit Breaker tester is a special instrument which development and manufacture by our company for various high voltage switching action characteristic test, it can measure accurately the mechanical dynamic characteristic parameters of low oil,high oil,vacuum,SF6 and so on high voltage circuit breaker with various voltage classes.the instrument adopted large screen display,English hints man-machine conversation mode,English display results and print out, has advantages of intelligentize, multi-functional,accurate data,strong anti-interference,easy operation,small size,light weight,nice appearance.

1、Working Environment

input voltage 220V±10% 60Hz±10%

atmospheric pressure 86～106kpa

temperature -10～40℃

humidity ≦80%RH

2、safety performance

insulation resistance ＞2MΩ

dielectric strength

Power frequency 1.5KV withstａnd one minute between power supply and shell,no flashover and sparkover.

3、 basic parameters

time： range 4000.0ms+6000ms resolution 0.1ms

error

1、inside 100ms 0.1ms

2、above 100ms 0.1%

3、same term

speed：range 20.00m/s resolution 0.01m/s

error

1、inside 0-2m/s ±0.1m/s

2、above 100ms ±0.2m/s

stroke：

Current: range 20.00A resolution: 0.01A

Output power: DC12～270V digital adjustable/15A(instant work)

size ： 360mm(L)×280mm(W)×300mm(H)

weight： 9kg

1、 performance

a)Time:12 contacts inherent opening/closing time,in-phase same time, out-phase same time.

b)Reclosing:close-open,open-close,open-close-open time,1 opening time,1 closing time, 2 closing time,metal short circuit time,no current time.

c)Springing: closing springing time,springing numbers, springing process, springing waveform for each contact,opening rebound amplitude for each contact.

d)Speed:instant opening/closing speed,max speed, time-stroke characteristic curve.

e) Stroke: total stroke,open stroke,over stroke, overshoot stroke, rebound amplitude.

f) Current: opening/closing current of opening/closing coil,current waveform diagram.

g) Action voltage: DC30～250V/15A digital adjustable circuit breaker action power,auto finish the breaker low voltage action test, measure the breaker action voltage value.

2、 Features

a)Suitable for all model SF6 switch,GIS composite apparatus,vacuum switch,oil switch’s mechanical characteristic test.

b)Excellent anti-interference ability,even under condition of near the 500KV transformer substation bypass bus bar is charged,it can finish test easily and output accurate results.

c)Linear sensor,rotation sensor,easy installation.

d)The switch action one time,come out all data and corresponding waveform diagram of the switch mechanical characteristic test.

e)The host can store field test data,real-time clock inside the instrument,convenient for save test date and time.

f)Large screen,HP series,direct perspective,background light liquid crystal,all English display all data and diagram,electric adjustment of liquid crystal contrast,power off memory.

g)English menu operation,easy to use.the instrument has built-in printer,print out all data and diagram at any time.

Opening(closing) time: opening(closing) coil input power as time zero,to the time of dynamic/static contact opening(closing).

In-phase same time:in same phase,opening(closing) time max and minimum difference.

Out-phase same time:in three phase,opening(closing) time max and minimum difference.

Average speed:during opening(closing) process,take out the first and last 10% of dynamic contact stroke, take the middle 80%,the ratio of total stroke to time.

Max speed:during opening(closing) process,after dynamic contact start to move,take 10ms as a unit of speed,until contact stop moving,get many speed unit value,the max unit speed value is the max speed of opening(closing) brake.

Instant opening(closing) speed: different manufacturer has different definition according to different manufacturer of switch and different switch model.