TD-650A switch characteristic tester

TD-650A switch characteristic tester

1、 Product Introduction

With the development of society, people have increasingly high requirements for the safety and reliability of electricity use. 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. Mechanical characteristic parameters are one of the important parameters for judging the performance of circuit breakers.

The high-voltage switch dynamic characteristic tester is our company'sA specialized instrument developed to meet the needs of testing the operating characteristics of various high-voltage switches,Can accurately measure the mechanical dynamic characteristics parameters of high-voltage circuit breakers with various voltage levels, such as low oil, high oil, vacuum, and sulfur hexafluoride. Its main feature is that, in addition to meeting the dynamic characteristic testing of general high-voltage switches in the market, it also meets the testing of Siemens graphite contact switches, which can reliably test graphite contact switchesDynamic resistance waveforms of three fracture surfaces. instrumentAdopting a large screen display and Chinese character prompts for human-machine dialogue, the Chinese characters display the results and print them out. It has the advantages of intelligence, multiple functions, accurate data, strong anti-interference ability, simple operation, small size, light weight, and beautiful appearance.

IIexecution standard

TD-650A switch characteristic tester

3、 Instrument features

1Applicable to all types of metal contacts produced domestically and internationallySF6 switch, GIS combination device, vacuum switch, oil switch.

2Linear travel sensor, rotary sensor, installation is extremely convenient and simple.

3Host large screen, direct through type, backlight LCD, contrast electronic adjustment. The full Chinese menu prompts operation, with one switch action, displaying all data and waveform diagrams.

4The host can store multiple sets of on-site opening and closing test results, with a real-time clock inside for easy archiving and storage of test dates and times.

5Built in fast micro printer to print all data and graphs.

6The instrument has powerful data analysis capabilities and can effectively analyze various indicators and parameters of the mechanical characteristics of circuit breakers.

4Performance Introduction

1Time:The inherent opening and closing time of 12 ordinary fracture surfaces. Same phase and same period, same period between phases.

2、Recloser: closing opening and closing of each break, opening closingThe process time of opening closing opening: one minute time, one closing time, two minutes time, gold short time, no current time value.

3Bounce: the closing bounce time, bounce frequency, bounce process, and bounce waveform of each fracture; The rebound amplitude of each break.

4、Speed: initial opening and closing speed, maximum speed, time stroke characteristic curve.

5、Current: The opening and closing current values and waveform of the opening and closing coils.

6Action voltage: Provided internallyDC30-250V/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.

5、 Technical parameters

1. Usage environment

Input power supply:220V±10% 50Hz±10%

Atmospheric pressure:86~106kPa

temperature-10～45℃

humidity≤80%RH

2. Security performance

Insulation resistance:>2MΩ

Dielectric strength: power supply to chassis frequencyWithstand voltage of 1.5kV for 1 minute without flashover or arcing.

3. Basic parameters

（3) Schedule:

（4) Current: Range: 20.00A Resolution: 0.01A

（5) Closing resistance: Range: 0-2000 Ω Resolution: 1 Ω Accuracy: 1%

（6) Fracture type: 12 channel metal fracture

6-way closing resistor fracture

3-channel graphite contact

（7) Output power supply: DC 30~250V digital adjustable/20A (instantaneous operation)

（8) Size and quality:

host:360mm×290mm×280mm 6kg

Attachment:370mm×280mm×220mm 9kg

6、 Definition of Terms

1divide(Closing) time: The starting point for timing is when the opening (closing) wire coil is powered on, until the time when the moving and stationary contacts are just opened (closed).

2Same phase and same period: within the same phase, divided intoThe difference between the maximum and minimum closing times.

3Phase to phase synchronization: Among the three phases, divided intoThe difference between the maximum and minimum closing times.

4average speedDuring the opening (closing) process, remove 10% of the total travel of the moving contact from the front and back, and take the middle 80%. The ratio of the travel of the moving contact to time.

5. Maximum speed: During the opening (closing) process, after the moving contact starts to move, the moving contact moves every 10ms as a speed unit until the moving contact stops, and several speed unit values are obtained, among which the maximum unit speed value is the maximum opening (closing) speed.

6. Rigid opening (closing) speed: Depending on the manufacturer of the tested switch and the switch model, each manufacturer has defined different rigid opening and closing speeds. This tester includes various definitions for users to choose from.

Reminder: If none of the above definitions are adopted, users can define the speed sampling section of the rigid opening and closing speed on the time travel characteristic curve (with directional travel) measured by this tester. The instrument will automatically calculate the user-defined rigid opening and closing speed (the ratio of travel to time within the sampling section).