Circuit breaker analyzer UHV-412

resistancepowervoltage

Product overview
The UHV-412 Circuit Breaker Tester performs precise mechanical and electrical tests on high-voltage circuit breakers (oil-minimum, oil-bulk, vacuum, SF6) across voltage levels. Designed to comply with GB1984-2014 and DL/T846.3-2017, it provides time, resistance and dynamic-resistance measurements required for commissioning, maintenance and diagnostics of substation breakers.

Technical parameters
Time measurement: 12 channels for opening/closing events; multiple period ranges with resolution down to 0.01 ms (01–99 ms / 1–999 ms / 1000–9999 ms / 10000–200000 ms). Internal trigger 1 ms–200000 ms; external trigger 0.01 ms–200 s. Accuracy within 1000 ms: 0.05% ± 0.1 ms.
Closing resistance: measurement range 30 Ω–10 kΩ, resolution 0.1 Ω, accuracy ≤1% ± 2 digits.
Dynamic resistance: current output up to 200 A, measurement range 0–50 mΩ, accuracy ≤0.5% ± 0.5 µΩ.
Speed measurement: linear sensor (0.01–25.00 m/s), 345° angle sensor (0.01–25.00 m/s), optional laser sensor (0.01–15.00 m/s); typical accuracy 0.05% ± 0.1 ms.
Stroke measurement: linear stroke 0–50 mm (res. 0.1 mm), rotation up to equivalent 0–1000 mm (res. 0.08°), acceleration sensor 0–300 mm (res. 0.1 mm); stroke accuracy ±(1%L + 0.2) mm.
Coil current/resistance: coil current max 20 A (res. 0.01 A, accuracy ±5%); coil resistance 0–2000 Ω (res. 0.01 Ω, accuracy ±5%).
Power and triggers: AC 220 V ±10% input, DC output DC6–270 V adjustable (short-time: DC24 V ≤15 A, DC220 V ≤20 A); external trigger AC/DC 10–300 V, current ≤120 A.
Isolating switch test: adjustable DC6–270 V output; power output time 0.01–20 s; max fracture-signal capture 200 s; measures closing/opening times, three-phase differences, bounce and frequency.
Environmental & size: host 400 × 380 × 285 mm; operating temperature -20 °C to +50 °C; relative humidity ≤90%.

Product Features of Circuit Breaker Tester

• 12-channel synchronized timing for full opening/closing event capture
• 200 A dynamic-resistance test capability for in-situ contact diagnostics
• Integrated adjustable DC power supply (DC6–270 V) with short-time high-current output
• Multiple sensor support (linear, rotation, angle, acceleration, optional laser) with quick-connect design
• Built-in thermal printer for immediate field reports and USB/optional RS232/WiFi for data export
• Storage for up to 30,000 tests with timestamping and expandable memory
• Designed for substation environment with anti-interference protection up to 500 kV

Technical specifications

• Model: UHV-412
• Standards: GB1984-2014, DL/T846.3-2017
• Time channels: 12; resolution 0.01 ms–1 ms depending on range; accuracy within 1000 ms: 0.05% ± 0.1 ms
• Closing resistance: 30 Ω–10 kΩ, resolution 0.1 Ω
• Dynamic resistance: 0–50 mΩ @ up to 200 A output
• Speed sensors: linear 0.01–25.00 m/s; angle 0.01–25.00 m/s; optional laser 0.01–15.00 m/s
• Stroke sensors: linear 0–50 mm (0.1 mm); rotation 0–1000 mm equiv. (0.08°); accel. 0–300 mm (0.1 mm)
• Coil current/resistance: up to 20 A / 0–2000 Ω
• Power: AC220 V ±10%; DC output DC6–270 V adjustable
• External trigger: AC/DC10–300 V; current ≤120 A
• Dimensions & environment: 400×380×285 mm; -20 °C to +50 °C; RH ≤90%

Principle of Circuit Breaker Tester

• The high-voltage switch dynamic characteristic tester is based on principles of electrical engineering and sensor technology. It analyzes the working status and performance of switches by measuring parameters such as current, voltage, and time.

Precautions for use

• 1. Safe operation: During the testing process, it is necessary to strictly follow the safety operation procedures to ensure the safety of personnel and equipment.
• 2. Proper wiring: Proper wiring is the key to ensuring accurate and reliable test results. Before conducting the test, it is necessary to carefully inspect and confirm whether all wiring is correct and secure.
• 3. Instrument calibration: Regularly calibrate the high-voltage switch dynamic characteristic tester to ensure the accuracy and reliability of the test results.
• 4. Data analysis: The test results require careful data analysis and processing to obtain effective information and conclusions.

Effect of Circuit Breaker Analyzer

• The high-voltage switch dynamic characteristic tester plays a crucial role in the power industry. It can help power engineers and technicians evaluate and monitor the performance of high-voltage switches, ensuring the stable operation of the power system.

Meaning of Circuit Breaker Analyzer

• The application of high-voltage switch dynamic characteristic tester is very important for the power industry. By testing and analyzing the dynamic characteristics of high-voltage switches, we can promptly identify potential problems and faults, providing guarantees for the safe operation of the power system.

FAQ for Circuit Breaker Analyzer

• Q1: What items does this Circuit Breaker Analyzer mainly test?
• A: Mainly used to test the mechanical and electrical characteristics of high-voltage circuit breakers, including key parameters such as opening and closing time, synchronicity, speed characteristics, stroke, overtravel, bounce time, etc.

• Q2: What types of circuit breakers can the Circuit Breaker Analyzer test?
• A: Suitable for various high-voltage switchgear such as SF6 circuit breakers, vacuum circuit breakers, low/high oil circuit breakers, and GIS switchgear.

• Q3: Does the Circuit Breaker Analyzer have anti-interference ability?
• A: Capable of strong resistance to electromagnetic interference, suitable for complex electromagnetic environments in substation sites.

• Q4: Is the quality of the Circuit Breaker Analyzer stable? What is the service life?
• A: The core components adopt industrial grade design, with high equipment stability and suitable for long-term on-site use.