This instrument is developed based on the IEC (270) standard, using the pulse current method principle, and meets the technical requirements for partial discharge testing instruments specified in GB-7354-2004, GB-1207-97, and GB-1208-97. The instrument features high sensitivity, a large dynamic range of the amplifier system, a wide range of testable samples, and ease of operation.
I. Technical Parameters:
◆ Capacitance range of testable samples: 6pF~250uF
◆ Elliptical scanning time base
(1) Frequency: 50, 100, 150, 200, 400 Hz
(2) Rotation: in 30-degree steps, rotatable up to 120 degrees.
(3) Operating modes: Standard - Expanded - Linear.
(4) Input voltage range for high-frequency time base ellipse: 13~275V.
◆ Display unit
Uses a 100×80mm rectangular oscilloscope tube, with brightness and focus adjustment knobs.
◆ Equipped with a *marker system to assist in identifying the phase of discharge pulses.
◆ Power supply: 220V±10% Power frequency
◆ Dimensions: 440×430×180mm
◆ Weight: approximately 15Kg
The complete product set includes:
1. Input impedance*
Selectable from No. 1 to No. 12; No. 7R is used for measuring long cables.
2. Apparent discharge calibrator (JZF-10 calibration charge generator, partial discharge calibrator pulse generator) optional.
3. LB series power frequency and intermediate frequency filters
4. *P series triple frequency induction test equipment
5. Partial discharge-free resistive voltage dividers: 50KV, 100KV, 150KV, 200KV optional.
6. Partial discharge-free coupling capacitor series
7. YDTW partial discharge-free test transformer series
8. Power frequency test transformer control console
(The above products can be configured by the customer as needed)
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