The HLJF-II Partial Discharge Tester fully complies with the latest GB7354 and IEC-270 "Partial Discharge Measurements" standards in terms of its detection method, measuring circuit, and technical performance parameters. It is developed based on the principle of the pulse current method, and incorporates advanced anti-interference components and a unique gate display circuit, providing strong anti-interference capability. It features four types of high-frequency elliptical scanning, suitable for type tests, routine tests of high-voltage products, new product development tests, and quantitative testing of partial discharge in motors, instrument transformers, cables, bushings, capacitors, transformers, arresters, switches, and other high-voltage electrical equipment.
1. Pure program-controlled working mode for the partial discharge detection system
2. Full Chinese menu prompts
3. Automatic calibration, automatic synchronization
4. Automatic voltage recording, automatic measurement saving and playback
5. Automatic generation of test reports
6. Digital windowing technology for strong anti-interference capability
7. 2D and 3D partial discharge pattern display
The complete instrument package includes:
1. Input impedance, choose from No. 1 to No. 12, No. 7R is for long cables;
2. Apparent discharge calibrator (JZF-10 calibration charge generator, PD tester calibration pulse generator) optional;
3. LB series power frequency and intermediate frequency filters;
4. SBP series triple frequency induction test equipment;
5. Partial discharge-free resistive voltage divider: 50KV, 100KV, 150KV, 200KV optional;
6. Partial discharge-free coupling capacitor series;
7. YDTW partial discharge-free test transformer series;
8. Power frequency test control console.
Note: The above products can be selected by the customer as a package
Capacitance range of test objects: 6pF~250uF;
2. Elliptical scanning time base:
(1) Frequency: 50, 100, 150, 200, 400 Hz
(2) Rotation: 30 degrees per step, rotatable up to 120 degrees
(3) Working modes: Standard - Expanded - Linear
(4) Input voltage range for high-frequency elliptical time base: 13~275V;
3. Display unit: uses a 100x80mm rectangular oscilloscope tube with brightness and focus adjustment knobs;
4. Zero marking system to assist in identifying the phase of discharge pulses;
5. Power supply: 220V±10% power frequency;
6. Dimensions: 440×430×180mm;
7. Weight: approximately 15Kg;
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
