Circuit Breaker Analyzer
Wuhan UHV Power Technology Co.,Ltd.located in Wuhan East Lake New Technology Development Zone and have convenient transportation access. We are professional OEM Manufacturer which is engaged in the research, development, sale and service of High Voltage Testing Equipment including: Resonant Test System, High Voltage Tester,Transformer Tester,Circuit Beaker Tester, Relay Protection Tester, Cable Tester etc.
Why Choose Us
Product Application
They are widely applied in power engineering project, transportation,petrochemical industry,mining and water conservancy project.
Our Certificates
We have obtained CE, & other certificates Obtained ISO9000 Quality Management System Certificate, and won the title of Advanced Science and Technology Enterprise.
Sales Market
Accumulated exports to the Vietnam,Malaysia, Indonesia, Philipines, Australia, Brazil, Argentina, Peru, India, Saudi Arabia, the United States and other more than 100 countries and regions, successfully open the international market.
Our Service
Provide professional consulting,Integrity and fairness No matter great or small amount of contract, new or old customers, domestic or foreign customers, UHV treats with integrity and fairness. UHV provides professional installation, commissioning and training for users' workers, ensures that users can get familiar with operation methods and put machines into use as soon as possible.
(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.
1. 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
2. velocity measurement : instant separating (instant closing) velocity
Appointed time slot( stroke segment or angle segment) average
velocity
3. velocity measurement range: 0.1mm sensor 0.01～20.00m/s，
345°angle sensor 1 cycle/ 0.01°
4. Travel measurement: Travel of moving contact (travel)
Contact stroke (open distance)
Over travel
Overshoot or rebound stroke
5. 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.
6. Current resistance range: the maximum current 20 A, resolution: 0.01 A, 1000 Ω resistance, resolution: 0.01 Ω.
7. Instrument power supply: AC 220V ± 10%; 50 hz plus or minus 10%
8. Dc power output: continuously adjustable DC20 ~ 270V, DC220V≤20A (short time), Power: 4400W.
9. External trigger voltage: AC/DC10-300V, current ≤120A
10. 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 .
11. mainframe volume : 360×260×170mm
12. operating environment: -20℃~+50℃
13. relative humidity: ≤90%
Definition of Terms for Circuit Breaker Analyzer .
1. Opening (closing) time: the time when the opening (closing) coil is powered on as the starting point of timing, and the time when the dynamic and static contacts just open (close).
2. In phase synchronization: in the same phase, the difference between the maximum and minimum opening (closing) gate time.
3. Phase to phase synchronization: the difference between the maximum and minimum opening (closing) time of three phases.
4. Average speed: during the opening (closing) process, 10% of the front and 80% of the middle of the total travel of the moving contact are removed respectively, and the ratio of the travel of the moving contact to the time is taken.
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 moving, and several speed unit values are obtained, among which the maximum unit speed value is the opening (closing) maximum speed.
6. Rigid opening (closing) speed: according to the different manufacturers and switch models of the tested switch, each manufacturer has defined different rigid opening and closing speeds. This tester includes different definitions for users to choose.
Common technical problems and solutions on the test site:
A . The switch does not operate when the control closing and opening operation is carried out by on-site instruments
1. Incorrect connection of field closing and opening control.
How to deal with it: find the control wiring diagram of the field control cabinet, ask professionals, find the closing and closing coil and switch auxiliary contacts respectively, refer to the control wiring diagram in this manual, and rewire.
2. If the coil load on site is too large or the control circuit is short circuited, the instrument cannot be normally driven, and the power supply emits an overload buzzer.Alarm, power will be restored automatically after four sound.
- For the permanent magnet switch or less oil circuit breaker, due to the switch closing coil requirements of the drive.The flow is large (up to 100A or a few hundred amps) and the maximum load capacity of the instrument operating power is 20A. Cause excessive load, meter.The device cannot be driven normally. At this time, please use the external trigger mode, connect the closing control line to the closing coil, and connect the opening control line.Collect the switching voltage signal (trigger time) on the switching coil, either DC or AC.
- Check the control loop to ensure the loop is unblocked.
3. Check whether there is DC output of the energy storage, opening and closing of the instrument
- Check the DC voltage of energy storage: Please set the multimeter at the dc 1000V gear to control the energy storage.The red and black wires are connected to the red and black wires of the multimeter respectively. Test on the energy storage interface, the time is extended to 3 seconds, and the voltage is output according to the energy storage test. If there is no voltage output, please return the power supply fault to the factory for repair.
- dc switching power supply check: the instrument is in a state of break-brake check to not answer the fracture test line is brake state, testing interface will also show "points" word, if A1 fracture or other fracture show is "us", said the fracture failure, please switch to the A2 fracture, redo closing test, check for the power output. To do this test, the acquisition time and trigger time should be extended by more than 2 seconds before the multimeter can detect the voltage.
- Switch-on DC voltage check: check the instrument when it is in the state of closing, clamp the yellow line and the black line of the fracture line together, and then connect the control line to the internal trigger. Other steps are the same as the switch-on voltage check.
- The above three methods have no voltage output, please return the instrument to the factory for inspection and maintenance. Please do not turn on the instrument by yourself. There is a danger of high voltage output inside.
- Countermeasures: If there is no DC output and you are in a hurry to do the test, please use external contact for measurement and return to the factory for maintenance after completion.
3. The switch mechanism has protection latches (such as Siemens and ABB switches).
Methods of handling:
- Use the internal power supply provided by the instrument to operate the switch closing and opening test, the lock must be removed, please ask the field technicians or switch manufacturer staff according to the field control cabinet control wiring diagram, help to remove the lock.
- Use the on-site operating power supply and test in the way of "external trigger".
When the instrument performs single closing and single subdivision tests, the switch is activated, showing no indication of fracture action
TThe fracture line is not connected well. The treatment method is as follows:①When doing indoor 10KV switch, yellow (A), green (B) and red (C) are connected with contact, and static contact is connected with black line after short connection. ② Do outdoor switch, yellow (A), green (B), red (C) connected to the upper end, black wiregrounding (substation outdoor switch other end has been grounded). ③ There is a problem with the switch control circuit, because it is separated immediately afterclosing, please check the switch circuit to do the experiment.28C. A printer can move paper but cannot print text or graphics.
Application of Circuit Breaker Analyzer
Circuit Breaker Testing
Ensuring that the contact resistance is within acceptable limits to prevent overheating and ensure reliable operation.
Switchgear Testing
Testing the resistance of switch contacts to ensure they are functioning correctly.
GIS Testing
Measuring the Characteristics of the GIS to detect any degradation or faults that might lead to power losses.
Our Factory
FAQ
Q: Do you have a showroom?
A: Surely we have, Our showroom have more hundreds of different products
Q: Is there the products tested before shipping?
A: our products 100% completely need to do the test and calibration before shipment, our QC deartment will strictly test every product, and make sure the product is in good performance, If the product is okay, our QC worker will fill and sign the product inspection report and issue product certificate, or the good will be refund back to product line and reproduction.
Q: Would you have a discount?
A: Yes we could offer different discount according to your order amount and quantity.
Q: Which payment form you can accept?
A: T/T, Western Union etc. We accept any convenient and swift payment term.
Q: What’s your after-sale service?
A: Our quality warranty period is one year.We will only charge the resonable cost if it exceeds one year, and during the warranty, we can provide free repairment or replacement (customer take the shipment cost)
Q: Have your products been exported?
A: We have over 8 years of export experience, with products distributed in more than 100 countries around the world. Please contact us to confirm if there are any local partners available
Q: What about the transportation?
A: Usually we take door to door express delivery, cause it's more convenient and fast, while if the goods is much too heavy or realtively large in size, we can also do land shipment, sea shipment, air shipment etc. this aso depend on your country location, anyway, we can check for you if your send us the inquiry.
Q: Is there the products tested before shipping?
A: our products 100% completely need to do the test and calibration before shipment, our QC deartment will strictly test every product, and make sure the product is in good performance, If the product is okay, our QC worker will fill and sign the product inspection report and issue product certificate, or the good will be refund back to product line and reproduction.
Q: Would you have a discount?
A: Yes we could offer different discount according to your order amount and quantity.
Q: Which payment form you can accept?
A: T/T, Western Union etc. We accept any convenient and swift payment term.
Q: What’s your after-sale service?
A: Our quality warranty period is one year.We will only charge the resonable cost if it exceeds one year, and during the warranty, we can provide free repairment or replacement (customer take the shipment cost)
Q: Have your products been exported?
A: We have over 8 years of export experience, with products distributed in more than 100 countries around the world. Please contact us to confirm if there are any local partners available
Q: What about the transportation?
A: Usually we take door to door express delivery, cause it's more convenient and fast, while if the goods is much too heavy or realtively large in size, we can also do land shipment, sea shipment, air shipment etc. this aso depend on your country location, anyway, we can check for you if your send us the inquiry.
Q: Is there the products tested before shipping?
A: our products 100% completely need to do the test and calibration before shipment, our QC deartment will strictly test every product, and make sure the product is in good performance, If the product is okay, our QC worker will fill and sign the product inspection report and issue product certificate, or the good will be refund back to product line and reproduction.
Q: Would you have a discount?
A: Yes we could offer different discount according to your order amount and quantity.
Q: Which payment form you can accept?
A: T/T, Western Union etc. We accept any convenient and swift payment term.
Q: What’s your after-sale service?
A: Our quality warranty period is one year.We will only charge the resonable cost if it exceeds one year, and during the warranty, we can provide free repairment or replacement (customer take the shipment cost)
Q: Have your products been exported?
A: We have over 8 years of export experience, with products distributed in more than 100 countries around the world. Please contact us to confirm if there are any local partners available
Q: What about the transportation?
A: Usually we take door to door express delivery, cause it's more convenient and fast, while if the goods is much too heavy or realtively large in size, we can also do land shipment, sea shipment, air shipment etc. this aso depend on your country location, anyway, we can check for you if your send us the inquiry.
Q: Is there the products tested before shipping?
A: our products 100% completely need to do the test and calibration before shipment, our QC deartment will strictly test every product, and make sure the product is in good performance, If the product is okay, our QC worker will fill and sign the product inspection report and issue product certificate, or the good will be refund back to product line and reproduction.
Q: Would you have a discount?
A: Yes we could offer different discount according to your order amount and quantity.
Q: Which payment form you can accept?
A: T/T, Western Union etc. We accept any convenient and swift payment term.
Q: What’s your after-sale service?
A: Our quality warranty period is one year.We will only charge the resonable cost if it exceeds one year, and during the warranty, we can provide free repairment or replacement (customer take the shipment cost)
Q: Have your products been exported?
A: We have over 8 years of export experience, with products distributed in more than 100 countries around the world. Please contact us to confirm if there are any local partners available
Q: What about the transportation?
A: Usually we take door to door express delivery, cause it's more convenient and fast, while if the goods is much too heavy or realtively large in size, we can also do land shipment, sea shipment, air shipment etc. this aso depend on your country location, anyway, we can check for you if your send us the inquiry.
Q: About the after-sale service, how can you solve the problems occurred of your overseas customer in time?
A: Usually the warranty of our tester 1 year, during this period, We will provide online guidance and send parts services based on your specific question. If necessary, our engineers can provide guidance for traveling abroad to the local are
Q: How many square meters of your factory?
A: We have whole 4 floors buildings, More than 3600 square meters
Q: Do you have a showroom?
A: Surely we have, Our showroom have more hundreds of different products
As one of the leading circuit breaker analyzer manufacturers and suppliers in China, we warmly welcome you to buy high-grade circuit breaker analyzer made in China here from our factory. For price consultation, contact us.
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