WT3000 Circuit Breaker Characteristics Tester

1WT3000 Circuit Breaker Characteristics TesterTechnical Specifications

1.1Usage environment

input power220V±10% 50Hz ±10%Atmospheric pressure86～106kpa

Wen degree －10～40℃ wet degree ≦80%RH

1.2safety performance

insulation resistance ＞2MΩ

dielectric strength Power supply to chassis frequency1.5KVpressure resistance1Minutes, no flashover or arcing.

1.3Basic Parameters

utime Between: range 16000.0msResolution0.1ms

　　　 　①100mswithin0.1ms ±1a character

②100msabove0.1% ± 1a character

　　　　 　　 ③ Same period

uSpeed up Degree: Range20.00m/sResolution0.01m/s

　①0-2m/swithin ±0.1m/s±1a character

②100msabove ±0.2m/s±1a character

uline Cheng:

uelectricity Flow: range 20.00A resolution 0.01A

uOutput power supply: DC30-250V digital adjustable/20A (instantaneous operation)

uOverall dimensions: 360mm(L)×280mm(W)×300mm(H)

uWeight: 9kg

IIWT3000 Circuit Breaker Characteristics TesterPerformance Characteristics

2.1 Product Performance

ltime Between:The inherent opening and closing time of 12 fracture surfaces, in phase synchronization and phase synchronization.

lheavy combine, synthesize Lock:The closing closing, opening closing, and opening closing process time of each fracture: one minute time, one closing time, two closing time, metal short time, and no current time value.

lplay Jump:The closing bounce time, bounce frequency, bounce process, and bounce waveform of each fractureThe rebound amplitude of each break.

lquick Degree:Initial opening and closing speed, maximum speed, time stroke characteristic curve.

lline Cheng:Total travel, opening distance, overtravel, overshoot, rebound amplitude.

lelectricity Flow:The current values and waveform diagrams of the opening and closing coils.

lAction voltage:Provided on boardDC30-250V/20A digital adjustable circuit breaker action power supply, automatically completes the low voltage action test of the circuit breaker, and measures the action voltage value of the circuit breaker.

2.2 Product Features

uApplicable to all models produced domestically and internationallySF₆switchMechanical characteristic tests for GIS composite electrical appliances, vacuum switches, and oil switches.

uAnti-interference ability, inEven when the bypass busbar of a 500KV substation is live, it can be easily tested and accurately measured.

uLinear and rotary sensors are extremely convenient and easy to install.

uOnce the switch is activated, all data and corresponding waveform diagrams of the switch mechanical characteristic test are obtained.

uThe host can store on-site test data and has a real-time clock inside, making it easy to archive and save test dates and times.

uHost large screen, wide temperature range, direct perspective, background light LCD, full Chinese display of all data and maps, LCD contrast electronic adjustment, power-off memory.

uChinese menu operationEasy to use. The instrument has a built-in printer that can quickly print all data and graphs at any time.

uThe instrument is equipped withRS-232interface, can be combined withPC online operation can also output test reports to various needle, laser, or inkjet printers, making on-site testing computerized.

3、 Definition of Terms

ldivide(Combined)Lock time:The power on of the opening (closing) switch coil serves as the starting point for timing, until the time when the moving and stationary contacts are just opened (closed).

lSame asPeriod: The difference between the maximum and minimum opening (closing) times within the same phase.

lSame as each otherPeriod: The difference between the maximum and minimum opening (closing) times among the three phases.

l平均速degreeDuring the opening (closing) process, remove the front and back of the total travel of the moving contact10%, taking the middle 80%, the ratio of the stroke of the moving contact to the time.

lMaximum speedDegree: During the opening (closing) process, after the moving contact starts to move, the moving contact moves every10ms is a speed unit, until the moving contact stops moving, several speed unit values are obtained, among which the maximum unit speed value is the maximum opening (closing) speed.

ljustSplit (merge)Speed: Depending on the manufacturer of the tested switch and the switch model, it is defined by each manufacturer This tester includes various definition sections for users to choose from, depending on the speed of opening and closing.