JF-2004 Portable Transformer Partial Discharge Detector
Introduction:
- Application: non-intrusive detection methods to detect and locate partial discharge defects in high-voltage electrical equipment.
- Working principle: Ultra-high frequency method (UHF), ultrasonic method (UA) and terrestrial electric wave method (TEV).
- Detection frequency range: UHF is 300~1500(MHz), ultrasonic is 20~200(KHz).
- Measuring range: UHF is -80~-20dBm, and ultrasonic is 0~90dB.
- Sensitivity: 10pC minimum (depending on the distance between the sensor and the discharge source).
Sensor:
JF-2004 Partial Discharge Detector has a built-in ultrasonic sensor, a two-in-one sensor for geo-electric wave and ultrasonic;
- UHF sensor: 300~2000(MHz), with directional receiving characteristics;
- Ultrasonic sensor: 20~200(kHz);
- Earth electric wave (TEV): 10 ~ 70MHz;
Software function:
- Continuously detect ultra-high frequency, terrestrial electric wave and ultrasonic signals to determine whether there is partial discharge;
- Real-time display of the change trend of the measured signal, which can make a more intuitive judgment on the development of the partial discharge signal;
- Have on-site data storage function.
Other Parameters:
No. | Item Name | JF-2004 Portable Transformer Partial Discharge Detector |
1 | Screen display | high-contrast 3.5-inch TFT color screen |
2 | Data storage | 1000 sets of test data can be saved |
3 | Power supply | Built-in 8.4V lithium battery, can work continuously for 8 hours |
4 | Power supply | input 100-240VAC, output 8.4V/3A, charging time is 3 to 4 hours |
5 | Dimensions&weight | 22cm*10cm*4cm, 1.5kg |
6 | Complete configuration | host, sensor, AC adapter, connecting cable and transport box |

