Circuit Breaker Analyzers Timers  | Detailed introduction of technical principles

The core principle of a circuit breaker analyzer is to synchronously and accurately acquire and measure the mechanical and electrical time series of the circuit breaker during opening and closing operations, and to evaluate its dynamic characteristics by analyzing its travel-time curve.

During testing, the instrument records the displacement of the moving contact in real time using displacement sensors (such as rotary encoders and linear resistance rulers), and simultaneously monitors the current in the opening/closing coils and the on/off status of the auxiliary contacts. The instrument converts the displacement signal into high-precision travel-time data, and calculates key parameters based on this: opening/closing time, three-phase asynchrony, initial opening/closing speed, average speed, overtravel, and bounce time.

The core function is to generate and analyze the travel-time characteristic curve, comparing it with a standard curve or historical data. Any abnormality in the curve shape (such as inflection points, plateaus, or slope changes) can directly reflect mechanical faults such as jamming of the operating mechanism, spring fatigue, and abnormal oil/pneumatic pressure, thereby comprehensively diagnosing the mechanical condition of the high-voltage circuit breaker. Circuit Breaker Analyzer/Timer, High-Efficiency Circuit Breaker Fault Locator, Circuit Breaker Test Time Range 16000, 0ms; Speed Range 20ms

1. Industrial computer architecture, suitable for all models of SF6 switches, GIS switchgear, vacuum switches, oil switches, pole-mounted switches, contactors, etc. with metal contacts manufactured domestically and internationally.

2. Sensors: Accelerometer, rotary velocities, and linear travel sensors are extremely easy and simple to install. Displays parameters such as three-phase speed, travel, opening distance, and overtravel.

3. Triggering methods: Internal triggering, external triggering, sensor triggering, and manual triggering. Manual triggering can perform characteristic tests on manually operated circuit breakers (without opening/closing coils), such as manual opening/closing switches on poles. Sensor triggering is mainly used in switchgear factories and other places with special requirements.

4. Energy Storage Power Output: The instrument can provide an adjustable energy storage power supply with a maximum starting current of 20A. After initial wiring, it can automatically control motor energy storage without rewiring. Note: The starting current of the energy storage motor is more than 10 times its rated current. It is generally suitable for on-site energy storage of 10kV vacuum switches.

Instrument Performance:

1. Time: Inherent opening and closing times of the 12 circuit breakers; synchronous operation between phases.
2. Reclosing: Close-Open, Open-Close, Open-Close-Open for each circuit breaker; shortest time, no current interval time value.

3. Bounce: Closing bounce time, number of bounces, bounce process, bounce waveform for each circuit breaker; opening rebound amplitude for each circuit breaker.

4. Speed: Initial opening and closing speeds; maximum speed; time-stroke characteristic curve.

5. Stroke: Total stroke; opening distance; overtravel; overshoot stroke; rebound amplitude.

6. Current: Opening and closing current values, resistance values, and current waveform diagrams of the opening and closing coils.

7. Operating Voltage: The machine provides a DC 0-270V 20A digitally adjustable circuit breaker operating power supply. It automatically completes high and low voltage operating tests of the circuit breaker and measures and prints the operating voltage value of the circuit breaker.

1. Operating Environment: Input 220V±10% 50Hz±10%, Atmospheric pressure 86-106kPa, Temperature -20-45℃, Humidity ≤80%RH

2. Safety Performance: Insulation resistance >2MΩ, Dielectric strength: Power supply to chassis withstands 1.5kV for 1 minute at power frequency without flashover or arcing.

3. Basic parameters:

(1) Time: Range 16000, 0ms, resolution 0.1ms, error ≤ 0.1%rdg±0.1

(2) Speed: Range 20ms, resolution 0.01ms, error ≤1%rdg±0.01

(3) Stroke: Range 1000, 0mm

4. Vacuum circuit breaker: Range 50, 0mm; resolution 0.1mm; error ≤1%rdg±0.1

5. SF6 circuit breaker: Range 300, 0mm; resolution 0.1mm; error ≤1%rdg±0.1

6. Oil circuit breaker: Range 1000, 0mm; resolution 0.1mm; error ≤1%rdg±0.1

7. Coil current: Range 20A; resolution 0.01A

8. Output power supply: DC0-270V digitally adjustable 20A; Resolution 1V, Error ≤0.1%rdg±1V

9. Dimensions and Weight: 420mm(L)×350mm(W)×230mm(H) 8kg

Circuit Breaker Analyzer, Circuit Breaker Detector, Circuit Breaker Tester, Circuit Breaker Characteristic Tester, Circuit Breaker Testing Equipment
MSGK-E Circuit Breaker Analyzer/Timer, High-Efficiency Circuit Breaker Fault Locator, Circuit Breaker Testing