Product introduction
UHV Circuit Breaker Vacuum Degree Detector Equipment is a key specialized equipment used in the power system to detect and evaluate the vacuum degree level inside the vacuum arc extinguishing chamber. The vacuum arc extinguishing chamber is the core component of a vacuum circuit breaker, and its high vacuum degree (usually on the order of 10 ⁻⁴ Pa to 10 ⁻⁶ Pa) directly determines the breaking current capacity and insulation performance of the circuit breaker.
Product Characteristics
1. Capable of quantitatively measuring the vacuum level in various types of vacuum switch arc-extinguishing chambers.
2. No need to disassemble the vacuum switch during on-site testing.
3. Provides accurate and reliable test results.
4. Features a more user-friendly and convenient operation process.
5. Allows users to save, print, and review test data.
6. Widely used in industries such as electric power, steel, petrochemical, textile, coal, and railways where vacuum switches are commonly applied.
7. The Vacuum Switch Vacuum Tester factory is lightweight and easy to carry.
Technical Parameters
| Test object | Various types of vacuum switch tubes |
| Test method | Non-disassembly measurement of vacuum tubes using a new excitation coil |
| Scope of application | This instrument is a multi-purpose machine, which can measure various types of vacuum switches. |
| Measuring range | 10-5～10-1 Pa |
| measurement accuracy | 10-5～10-4 Pa,10% |
| 10-4～10-3 Pa,10% | |
| 10-3～10-2 Pa,10% | |
| 10-2～10-1 Pa,10% | |
| Magnetic field voltage | 1700V |
| Pulsed electric field high voltage | 30kV |
| Switch tube opening distance when testing
vacuum |
Normal use of open distance |
| Use environment | -20℃~40℃ |
| Host weight | 24kg |
| Dimensions | 410×320×370mm3 |
| Sampler | Magnetron coil |
How accurate are UHV Vacuum Interrupter Test Sets?
Accurate measurement is essential when evaluating the condition of a vacuum interrupter. UHV Vacuum Interrupter Test Sets manufactures use a proven magnetron discharge testing method combined with advanced digital signal processing to deliver reliable and repeatable results.
Key advantages include:
High measurement sensitivity
Excellent repeatability between tests
Stable performance during long-term use
Automatic data calculation and analysis
By providing consistent test results, the instrument helps maintenance teams identify vacuum degradation early and make informed maintenance decisions.
Can the vacuum interrupter be tested without dismantling it?
Yes.
UHV Vacuum Interrupter Test Set supplier is designed for non-destructive testing and does not require the vacuum interrupter to be removed from the circuit breaker.
Benefits include:
No dismantling of the interrupter
No damage to the equipment
Reduced outage time
Lower maintenance costs
Faster inspection procedures
This allows utilities and substation operators to perform routine condition assessments more efficiently while minimizing equipment downtime.
Is the tester suitable for field use in substations?
Absolutely.
UHV Vacuum Interrupter Test Set manufacturer is specifically designed for on-site testing in substations and power system environments.
It is suitable for:
Transmission substations
Distribution substations
Power plants
Renewable energy facilities
Industrial power systems
Field-friendly features include:
Portable design
Simple operation
Fast testing process
Clear user interface
On-site condition assessment capability
The vacuum interrupter tester factory enables maintenance personnel to complete inspections quickly without removing equipment from service locations.
Application Scenarios
1. Preventive maintenance of substation high-voltage switchgear-conducting periodic condition monitoring of vacuum circuit breakers that have been in long-term operation. During substation maintenance, testing instruments are used to evaluate the vacuum integrity of the interrupter. This allows for the timely detection of vacuum degradation caused by prolonged operation, mechanical wear, or seal deterioration, thereby providing a basis for equipment maintenance, replacement, and condition assessment.
2. Condition monitoring of high-voltage switchgear and ring main units (RMUs)-performing rapid on-site testing of vacuum switchgear within power distribution systems. This application is suitable for urban distribution networks, substations at industrial and mining enterprises, and user-side distribution systems. By testing the performance of vacuum interrupters, the insulation reliability of the switchgear is assessed, reducing the risk of power outages caused by switchgear failure.
3. Quality inspection during power equipment manufacturing-used for performance verification during the production of vacuum interrupters and vacuum circuit breakers. Vacuum levels are tested during product R&D, assembly, and final inspection to ensure compliance with design standards and quality requirements, thereby enhancing equipment reliability prior to shipment.
FAQ about Vacuum Interrupter Test Set
Q：Why is it necessary to measure the vacuum degree with a vacuum interrupter tester?
A: The vacuum interrupter tester supplier relies on a high-vacuum environment to achieve rapid arc extinction and insulation recovery between contacts. If the internal vacuum level decreases, the arc-quenching capability and insulation performance will be affected, potentially leading to reduced breaking capacity, contact erosion, or even equipment failure.
By regularly measuring the vacuum degree, the performance degradation trend of the interrupter can be identified in advance, preventing power outages caused by equipment failure and improving the operational safety of the power system.
Q: Why is regular vacuum degree testing required for vacuum circuit breakers?
A: During long-term operation, vacuum interrupters may be affected by mechanical impact, temperature variations, contact wear, and seal aging, which can gradually degrade internal vacuum performance.
Regular testing can:Identify vacuum performance abnormalities in advance;Prevent circuit breaker interruption failure;Reduce unexpected power outages;Extend equipment service life.
How does the tester perform in high-interference environments?
Substations often contain significant electromagnetic interference caused by nearby energized equipment and switching operations.
To ensure reliable measurements, UHV testers incorporate:
Digital signal processing (DSP)
Intelligent filtering algorithms
High-speed data acquisition technology
Industrial-grade electronic components
Optimized shielding and circuit design
These technologies help suppress electrical noise and maintain measurement stability, even in challenging substation environments.
As a result, users can obtain dependable test data without being affected by common sources of electromagnetic interference.
Does the tester support data storage and management?
Yes.
UHV Vacuum Interrupter Test Set includes comprehensive data management functions to support modern maintenance programs.
Available features include:
Automatic storage of test results
Historical record review
USB data export
PC software support
Test report generation
Equipment condition tracking
These functions make it easier for utilities and substation operators to build maintenance records, compare historical results, and implement condition-based maintenance strategies.
The ability to archive and analyze test data over time helps improve asset management and supports long-term reliability planning.
Why Utilities and Substations Choose UHV
Proven non-destructive vacuum testing technology
Accurate and repeatable measurements
No need to dismantle vacuum interrupters
Designed for substation field applications
Strong resistance to electromagnetic interference
Comprehensive data storage and reporting functions
Extensive experience serving power utilities and substation maintenance teams
Professional technical support and training services
UHV Vacuum Interrupter Test Set provides utility operators and substation maintenance teams with a practical, efficient, and reliable solution for assessing vacuum interrupter condition and supporting preventive maintenance programs.
Hot Tags: circuit breaker vacuum degree detector equipment, China circuit breaker vacuum degree detector equipment manufacturers, suppliers, factory, CB timing and resistance analysis kit, CB analyzer with remote control, breaker analyzer for private industrial sites, breaker timing and resistance test equipment, circuit breaker analyzer for water treatment plant, CB analyzer for petrochemical facilities
