Product Introduction
With the development of society, the electricity security is required
to be more by people, high voltage circuit breaker burdens the
dual-control and protection in electric system, whose performance
relates to the operation of electric system. mechanic parameter is one
of indispensable parameter in analyzing the performance of breaker. The
comprehensive characteristic tester of high-voltage switch , namely, the
mechanic characteristic tester, is according to the latest version of
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المعايير الفنية
Time measurement: | 12 natural switching (closing) time |
The opening (closing) phase is not at the same time | |
The difference between different periods of switching (closing) | |
Closing (opening) Bouncing time (number of bounces) | |
Internal trigger test range: 1ms ~ 10000ms, resolution: 0.01ms, | |
External trigger test range: 1ms ~ 10000ms, | |
Resolution within 999ms: 0.01ms,1000-9999ms: 0.1ms, and over 10000ms: 1ms. | |
Accuracy within 200ms: 0.05%± 0.1ms | |
velocity measurement: | instant separating (instant closing) velocity |
Appointed time slot (stroke segment or angle segment) average | |
velocity | |
velocity measurement range: | 0.1mm sensor 0.01～20.00m/s, |
345°angle sensor 1 cycle/ 0.01° | |
Travel measurement: | Travel of moving contact (travel) |
Contact stroke (open distance) | |
Over travel | |
Overshoot or rebound stroke | |
Measuring range: linear sensor: | 50mm, measuring range: 0-50mm, resolution :0.1mm. |
Optional 100-1000mm linear sensor of any length. | |
Encoder: 345° Rotate sensor, measurement | |
range: 0-1000mm, resolution :0.1о. | |
Current resistance range: | the maximum current 30 A, resolution: 0.01 A, 1000 Ω resistance, resolution: 0.01 Ω. |
Instrument power supply: | AC 220V ± 10%; 50 hz plus or minus 10% |
Dc power output: | continuously adjustable DC20 ~ 270V, DC220V≤20A (short time), Power: 4400W. |
External trigger voltage: | AC/DC10-300V, current ≤120A |
Disconnecting switch measurement range | (1) Voltage output: DC20～270V(adjustable) |
(2) Current output time: 0.01~10 s (settable) | |
(3) Fracture signal maximum acquisition time: 10s | |
(4) Measurable fracture closing, separation time, three-phase a synchronism, bounce time and frequency. | |
Mainframe volume: | 360×260×170mm |
Operating environment: | -20℃~+50℃ |
Relative humidity: | ≤90% |
The Circuit Breaker Analyzer is proudly made in China, stands as a testament to our commitment to excellence in high voltage testing. As a professional supplier, we offer cutting-edge technology and precision engineering to ensure accurate analysis of circuit breaker performance. With our comprehensive solutions, we empower industries with reliable testing capabilities, setting new standards for efficiency and safety.
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Product Feature
(1) Suitable for domestic and foreign production of SF6 switch, GIS combination electrical appliances, vacuum switch, oil switch, vacuum contactor, special circuit breaker (train circuit breaker). At the same time, 12 metal contact fractures, 6 main fractures and 6 auxiliary fractures can be measured. The circuit breaker is operated once, and the data and waveform such as time, bounce number and time, speed, coil current and coil resistance are obtained. With energy storage, automatic and manual low jump test, circuit breaker life test and (lock power supply and dry contact control optional) and other functions. Equipped with high-speed thermal printer, convenient to print test data on site.
(2) 7-inch color screen, operating under the sun is clearly visible. Menu operation, quick test interface, one-key operation, support Chinese and English input. The 12-channel fracture status is displayed in Chinese. The time, stroke, speed and waveform are displayed on the same screen. Analyze the average velocity of the specified segment and mark it on the stroke curve for easy viewing.
(3) machine integrated operation power supply, no site secondary power, easy to use. Can provide DC20 ~ 270V adjustable power supply, current 20A. Short circuit protection function. In case of short circuit, 1ms will stop the voltage and current output and emit a beep to prompt the operator to check the circuit. Unique double circuit power supply design, such as closing or breaking control circuit in one damage, with the other can also be tested.
(4) equipped with linear sensor, 360 degrees without dead Angle rotation sensor, with special fixed multifunctional joint, installation is very convenient, simple. The length of the 30-1000mm linear sensor can be set arbitrarily. It only needs to be equipped with the sensor, and the instrument does not need to be returned to the factory to change the program.
(5) the host can store 100 groups of test data, real-time clock in the machine, easy to archive.
(6) Equipped with U disk interface and R232 interface, data saved to U disk, uploaded to the computer for analysis, saving, printing, R232 interface can be connected to the computer online operation (optional function).
(7) The internal anti-interference circuit can be used reliably in 500KV substation.
Advantage:
High precision: capable of measuring and analyzing the dynamic characteristics of switches, providing accurate data.
Efficiency: Quickly complete the testing process, saving time and labor costs.
Reliability: High stability, able to work continuously for a long time.
Typical application steps
Factory test: After the production of the switchgear is completed, verify whether its mechanical performance meets the design requirements.
On site handover test: Performance confirmation shall be conducted before the equipment is put into operation after installation.
Preventive testing: Conduct regular physical examinations on operating circuit breakers according to maintenance cycles to identify potential hazards.
Fault diagnosis: When the circuit breaker experiences abnormalities such as refusal or misoperation, the cause can be accurately identified through testing waveforms and parameters.
Frequently Asked Questions (FAQ)
Q: Do circuit breaker analyzers need to be regularly calibrated? A: Yes, in order to ensure the accuracy of the test data, the circuit breaker analyzer needs to be regularly inspected and calibrated in accordance with relevant national standards and the requirements of the instrument manufacturer.
Q: Why does my test result show that the disconnection time is too long? A: There are many possible reasons for a longer opening time, including increased mechanical resistance of the operating mechanism, insufficient spring force, excessive resistance in the control circuit, or delayed response of sensing devices. It needs to be investigated based on specific circumstances.
Q: What impact does' three-phase with different periods' have on the power system? A: Three phase asynchrony can cause negative sequence current in the power grid, leading to overheating of equipment such as generators and transformers, and even causing system oscillation, seriously affecting the stable operation of the power system.
Q: Can I perform switch characteristic testing while live? A: Normally, switch characteristic testing (especially opening and closing testing) needs to be conducted when the equipment is in a power-off state to ensure the safety of personnel and equipment.
Q: Besides Wuhan UHV Power Technology Co., Ltd., which other companies provide similar equipment? A: There are many domestic and foreign manufacturers offering switch characteristic testers on the market, but when choosing, it is necessary to comprehensively consider factors such as product performance, stability, accuracy, after-sales service, and price. Wuhan UHV Power Technology Co., Ltd. has a good reputation and technical strength in the industry, and is a trustworthy brand.
