MSJF-3001 Partial discharge tester

Scope of Application:  Uses non-invasive detection methods to detect and locate partial discharge defects in high-voltage electrical equipment.
Standard Sensor Configuration: Ultrasonic sensor (UA), Transient Earth Voltage sensor (TEV). Optional: Transformer-specific sensor network, GIS-specific ultra-high frequency sensor, high-voltage cable-specific sensor, and can also be customized according to user requirements.
Detection Principle: Ultrasonic method (UA), Transient Earth Voltage method (TEV), and Ultra-High Frequency method (UHF).
1. Scope of Application: Uses non-invasive detection methods to detect and locate partial discharge defects in high-voltage electrical equipment.
2. Sensor Configuration:
Standard: Ultrasonic sensor (UA), Transient Earth Voltage sensor (TEV)
Optional: Transformer-specific sensor network, GIS-specific ultra-high frequency sensor,
High-voltage cable-specific sensor. Can also be customized according to user requirements.
3. What is the detection principle?: Ultrasonic method (UA), Transient Earth Voltage method (TEV), and Ultra-High Frequency method (UHF).
4. Detection Frequency Band:
Ultrasonic: 40-200KHz
Transient Earth Voltage: 3-100MHz
Ultra-High Frequency: 300-2000MHz
5. Measurement Range:
Ultrasonic: -90-80dB
Transient Earth Voltage: -80-10dBm
Ultra-High Frequency: -80-10dBm
6. Sensitivity: Minimum 10pC (depending on the distance between the sensor and the discharge source).
7. Sensors:
① Ultrasonic sensor: 20-200 (kHz);
② Transient Earth Voltage (TEV): 5 - 100MHz. ③ Ultra-high frequency sensor: 300-2000 (MHz), with directional receiving characteristics;
8. Features a built-in ultrasonic sensor, a combined ground wave and ultrasonic sensor; optional components include transformer-specific sensors, GIS-specific sensors, cable-specific sensors, etc.;
9. Software functions:
① Continuously detects ultra-high frequency, ground wave, and ultrasonic signals to determine the presence of partial discharge;
② Real-time display of the change trend of the measured signal, allowing for a more intuitive judgment of the development of partial discharge signals;
③  Features on-site data storage function.
10. Instrument characteristics:
① Screen display: High-contrast 3.5-inch TFT color screen.
② Data storage: Can save 1000 sets of test data.
③ Power supply: Built-in 8.4V lithium battery, can work continuously for 8 hours.
④ Power adapter: Input 100-240Vac, output 8.4V 3A, charging time 3-4 hours.
⑤ Dimensions: 220 * 100 * 40.
⑥ Instrument weight: 1.5kg.
⑦ Operating temperature: -25℃-45℃.
⑧ Storage temperature: -35℃-60℃.
11. Complete set configuration: Main unit, sensor, AC adapter, connecting cable, and carrying case.