- Home
- Companies
- Wuhan Huayi Electric Power Technology ...
- Products
- Huayi - Model HYJF-H - Portable ...
Huayi - Model HYJF-H -Portable Handheld Partial Discharge Detector
The HYJF-H Portable Handheld Partial Discharge Detector is a sophisticated tool engineered for detecting partial discharge in high-voltage electrical systems. Ideal for use with equipment such as high voltage switchgear, transformers, GIS, and overhead lines, this detector measures discharge intensity and frequency through various state-of-the-art sensors. It features TEV, AE, UHF, and HFCT measurement capabilities, providing resolution and precision of 1dB across a wide frequency range—making it suitable for diverse electrical environments. Integrated with a 4.0-inch RGB LCD screen, users can easily access discharge patterns, making it a reliable choice for maintenance and troubleshooting in complex setups. The unit is internally synchronized and offers the advantage of non-intrusive testing, eliminating the need for power-offs during assessment. Its robust design includes a durable ABS shell and a long-lasting lithium battery, ensuring functionality in various operational conditions without external power constraints.
This product can be widely used in partial discharge detection of power systems, including high voltage switchgear, ring network cabinets, voltage / current transformers, transformers (including dry type transformers), GIS, overhead lines, cable, and other equipment insulation state detection, through the following indicators to measure the discharge degree of electrical equipment:
Partial discharge intensity detection: By measuring the discharge signal in one power frequency cycle, the partial discharge intensity is characterized according to the maximum value (dB) in the discharge pulse sequence.
Partial discharge frequency detection: By measuring the discharge signal in one power frequency cycle, the discharge pulse is extracted and the partial discharge frequency is characterized according to the number of discharge pulses.
TEV measurement
- Measuring range : 0-60 dBmV : Measuring range : -6dBμV to 68dBμV
- Resolution : 1dB : Resolution : 1dB
- Precision : ±1dB : Precision : ±1dB
- Maximum pulse per cycle : 1400 : Frequency Range : 20~200 kHz
- Measurement frequency band : 3~100MHz : :
AA measurement :
- Measuring range : -6dBμV~68dBμV : Detection frequency : 300-2000MHz
- Resolution : 1dB : Measuring range : 0-60 dBmV
- Precision : ±1dB : Sensitivity : ＜1dBm
- Sensor center frequency : 40 kHz : Sensor frequency band : 300-2000MHz
HFCT measurement
- Sensor transmission impedance : 5mV/mA
- Detection frequency : 1～30MHz
- Sensitivity : ≤50pC