Complaint
Why do we need to test circuit breakers regularly?
When a fault such as a short circuit or current overload is detected by a protective relay, a trip impulse is sent to the circuit
breaker. The circuit breaker must function as specified and interrupt the current as soon as possible or severe damage may occur.The damage caused by a malfunctioning circuit breaker can often be catastrophic, resulting in significant damage to the electrical system.
Given that circuit breakers may be inactive for months or even years prior to a fault, a regime of circuit breaker testing is an important safety factor. Proper functionality of a breaker is reliant on a number of individual components that have to be calibrated and tested at regular intervals to ensure the complete and successful breaking of the circuit when triggered. Poorly maintained circuit breakers may not activate after receiving the trigger signal sent by the protective.
Advantages
1) The vibration test function integrated within the analyzer provides users with a new means of testing the mechanical characteristics of circuit breakers. It is simpler and more effective.
2) The test results contain richer information about the circuit breaker, and can quickly locate the cause of the fault for circuit breakers that have a potential risk of failure or already have a fault.
3) No need to change the original wiring connection of the circuit breaker, so it can achieve the mechanical characteristics of the circuit breaker with power detection.
4) The arc extinguishing contact analysis module enables the user to achieve automatic assessment of the degree of wear of the arc contacts inside the circuit breaker without dismantling the breaker.
(5) The instrument alone can complete the circuit resistance measurement of the circuit breaker, the user does not need to purchase a circuit resistance tester, reducing the weight of the field test instrument and saving the user cost.
Index
| 12 channels for time measurement | 3-channel supports both the time contact and resistance contact time 6-channel isolated contacts for cascaded unit measurement of pole |
| Time measurement | Range: 4000ms Error :< 0.1ms Resolution: 0.01ms Linear resistance sensor: |
| Travel measurement according to sensor | Linear resistance sensor Measurement range: 0~250mm; resolution: 0.01mm; error:<0.5mm Measurement range: 0~25mm; resolution: 0.01mm; error:<0.05mm Angle resistance sensor: Measurement range: 0~360°; resolution: 0.01°; error:<0.5° |
| Pre-insertion Resistance Measurement | Range: 50~5000ohm; error :<1%RDG+2D |
| Dynamic resistance measurement | Test current: 25~100A Measurement error :< 1%RDG+2D |
| Contact resistance measurement | Range:0--10mohm ; Error<0.5%RDG+0.05%FS Range: 0-2mohm; Error:<0.5%RDG+2D |
| Speed measurement | 250mm linear resistance scale: 0~20m/s; error:<0.5%RDG+2D 25mm linear resistance scale: 0~20m/s; error:<0.5%RDG+2D Angle sensor: 0~20m/s; error:<0.5%RDG+2D Acceleration sensor: 0~20m/s; error:<5%RDG+2D |
| Coil current measurement | Range: 0~20A; resolution: 0.001A; error:<0.01A |
| Vibration measurement | Range: 0~5000G; error:<3% |
| Internal DC power source | Voltage: 12~265V; current:0~20A |
| Data Save | Built-in 8G storage memory and 2 USB interface for data export and external keyboard or mouse connection |
| Power supply | AC220V±10%; 50Hz±10% |
| Working environment | Temperature: -10~50°C; Humidity:<80% |
GDGK-307 Circuit Breaker Dynamic Characteristics Analyzer/Digital Circuit Breaker Analyzer with best price details
