Product Introduction
With the development of society, the electricity security is required to be more by people, HVCB 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 < high-voltage AC circuit breaker> GB1984-2003 as design model, referring to the third part of PRC’s power industry standards , and designing based on DL/T846.3-2004, which inspect various grades of voltages in high-voltage circuit breaker’s mechanic dynamic characteristic parameters about oil lack, oil excess, vacuum and sulfur hexafluoride, to provide convenience to many kinds of breakers.
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Product features
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.
Produktparameter
| 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:0.1°. | |
| Current resistance range | the maximum current 20A, resolution: 0.01A, 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 environmen | -20℃~+50℃ |
| Relative Luftfeuchtigkeit | ≤90% |
Product Functions
1. Multi-Contact Timing Measurement: It can measure the opening and closing time, synchronization (phase difference), and bounce time/number for up to 12 metal contact fractures (6 main and 6 auxiliary contacts) simultaneously.
2. Travel, Stroke, and Velocity Analysis: Using optional sensors (linear or rotary), it accurately measures the travel of the moving contact, stroke, over-travel, and rebound stroke. It calculates the instant velocity at separation or closing and the average velocity over a specified segment.
3. Integrated Adjustable DC Power Supply: The analyzer includes a built-in, digitally adjustable DC power supply (DC 20~270V, 20A) for operating the circuit breaker's closing and opening coils. It can automatically perform low-voltage action tests, verifying the circuit breaker's performance under different control voltages.
4. Coil Current and Resistance Measurement: It measures and displays the waveform of the operating coil current and can calculate the coil resistance (up to 1000Ω), which is useful for detecting coil or control circuit issues.
5. Life Test and Energy Storage Functions: It supports circuit breaker life (endurance) testing and includes a function to control the energy storage motor of spring-operated mechanisms.
6. Data Management and Connectivity: The host can store up to 100 groups of test data with a built-in real-time clock for archiving. It includes a USB port and an RS232 interface for data export, upload to a PC for analysis, and optional online operation. It also features a built-in high-speed thermal printer for on-site report printing.
7. User-Friendly Interface: A 7-inch color touchscreen is clearly visible under sunlight. The instrument offers menu-driven operation, quick test interfaces, and one-key operation. It supports both Chinese and English input. Time, stroke, speed, and waveforms are displayed on the same screen for easy analysis.
Product Advantages
1. Comprehensive and Integrated: It combines timing, travel, velocity, coil current, and power supply functions into one portable unit, eliminating the need for multiple separate instruments.
2. Excellent Portability and On-Site Convenience: The integrated power supply eliminates the need for an external secondary power source. The dual-circuit power supply design ensures testing can continue if one control circuit fails. The lightweight design and carrying case make it easy to transport.
3. User-Friendly and Efficient: The large touchscreen, one-key operation, and simultaneous display of all key parameters (time, stroke, speed, waveforms) significantly speed up testing and analysis. The ability to mark average velocity on the stroke curve simplifies interpretation.
4. Versatile and Adaptable: It is compatible with a wide range of domestic and international circuit breakers (SF6, GIS, vacuum, oil) and supports various sensors (linear, 360° rotary). The sensor length (30-1000mm) can be set in the software without requiring factory modifications.
5. Robust and Reliable: Built-in anti-interference circuits ensure reliable performance even in high-noise environments like 500kV substations. The short-circuit protection for the internal power supply (cuts off in 1ms) enhances safety.
Application Scenarios
1. Substation Commissioning: Used for acceptance testing of new circuit breakers after installation and before energization to verify all mechanical parameters meet specifications.
2. Routine Maintenance and Preventive Testing: Integrated into maintenance programs for periodic testing (e.g., annually) to track changes in timing, travel, and velocity, helping to predict and prevent failures.
3. Fault Diagnosis and Troubleshooting: Deployed when a circuit breaker has failed to operate correctly or after a fault event. It helps identify issues like mechanism wear, contact erosion, damping problems, or control circuit faults.
4. Circuit Breaker Manufacturing: Used by manufacturers for final quality control and type testing to ensure production units meet design standards.
5. Repair and Overhaul: Employed after major repairs or overhauls to verify that the circuit breaker has been correctly reassembled and adjusted.
FAQs
1、What is a circuit breaker analyzer and what does it test?
Circuit Breaker Analyzer, also known as a dynamic contact resistance tester or mechanical characteristics tester, is an instrument used to measure the mechanical operating parameters of a high-voltage circuit breaker. It primarily tests timing, travel and velocity, and coil current. These parameters are critical for assessing the mechanical condition and performance of the breaker.
2、What types of circuit breakers can the UHV-408 Circuit Breaker Analyzer test?
The UHV-408 Circuit Breaker Analyzer is designed to test a wide variety of circuit breakers, including SF6, GIS, vacuum, oil, and vacuum contactors, produced both domestically and internationally. It can also test special circuit breakers used in railway applications.
3、How many contacts can the analyzer measure simultaneously?
It can measure up to 12 metal contact fractures simultaneously, which are typically configured as 6 main contacts and 6 auxiliary (resistor) contacts. This allows for comprehensive timing analysis of multi-break circuit breakers in a single operation.
4、How is the test data stored and managed?
The instrument has internal memory for storing up to 100 test records, complete with a time and date stamp. Data can be exported to a USB drive for transfer to a PC. The PC software allows for further analysis, storage, and report generation. The built-in thermal printer also allows for immediate, on-site printing of results and waveforms.
5、What makes this analyzer suitable for use in high-voltage substations?
The UHV-408 Circuit Breaker Analyzer is designed with internal anti-interference circuits that allow it to operate reliably in the electrically noisy environment of a 500kV substation. This ensures accurate measurements even when high-voltage equipment is energized nearby.
Wuhan UHV Power Technology Co., Ltd. has been deeply engaged in the field of high-voltage power testing equipment for over 20 years.
As a direct-sale manufacturer with our own factory, we combine large-scale production capacity with a strict quality control system, ensuring stable and reliable product performance while offering you more competitive factory-direct prices.
Our core products cover a wide range of high-voltage testing equipment to meet diverse testing requirements. In addition, we can provide professional technical support and flexible customized solutions according to different project specifications.
