NDJF-2008 Partial Discharge Detection System
Contact Info
- Add:武汉市东湖开发区高新四路40号, Zip: 430074
- Contact: 蔡先生
- Tel:+8613871491300
- Email:whnort@163.com
Other Products
Product Introduction
NDJF-2008 Partial Discharge Detection System is a novel instrument. It is dedicated to reducing the size and weight of the instrument, making it a truly portable device. This instrument is developed based on the IEC (270) standard, utilizing the pulse current method principle, and meets the technical requirements for partial discharge testing as specified in GB-7354-87, GB-1207-97, and GB-1208-97. It features high sensitivity, a wide range of test samples, high-frequency elliptical scanning, a large dynamic range of the discharge system, and incorporates advanced anti-interference components and a unique gate display circuit. It is suitable for type tests, factory tests, new product development tests, and quantitative testing of partial discharges in motors, transformers, cables, bushings, capacitors, transformers, surge arresters, switches, and other high-voltage electrical equipment. It can be used on-site by manufacturers, research institutions, and power departments.
Product Features
☆ High sensitivity and a wide range of test samples.
☆ High-frequency elliptical scanning with a large dynamic range of the discharge system.
☆ Incorporates advanced anti-interference components and a unique gate display circuit.
☆ Compact size and lightweight design.
Technical Parameters
☆ Test sample capacitance range: 6pF-250uF
☆ Detection sensitivity and allowable current (see Table 1).
☆ Elliptical scanning time base
(1) Frequency: 50, 100, 150, 200, 400Hz.
(2) Rotation: 30 degrees per step, rotatable up to 120 degrees.
(3) Operating modes: Standard - Extended - Linear.
(4) High-frequency time base ellipse can be adjusted to the correct size based on input voltage (13-275V).
☆ Display unit
Uses a 100×80mm rectangular oscilloscope tube with brightness and focus adjustment knobs.
☆ Amplifier
(1) 3dB low-frequency cutoff fL: 20, 40kHz selectable.
(2) 3dB high-frequency cutoff fH: 200, 300kHz selectable.
(3) Gain adjustment: 6 coarse steps, step gain difference 20±1dB.
(4) Fine adjustment range: >20dB.
(5) Positive and negative pulse response asymmetry: <1dB.
Table 1 Detection Sensitivity and Input Unit Allowable Current Values
Input Unit No. | Tuning Capacitance Range | Sensitivity (pC) (Unbalanced Circuit) | Allowable Current (RMS) | |
Unbalanced Circuit | Balanced Circuit | |||
1 | 6-25-100 pF | 0.02 | 30 mA | 0.25 A |
2 | 25-100-400 pF | 0.04 | 60 mA | 0.5 A |
3 | 100-400-1500 pF | 0.06 | 120 mA | 1 A |
4 | 400-1500-6000 pF | 0.1 | 0.25 A | 2 A |
5 | 1500-6000-25000 pF | 0.2 | 0.5 A | 4 A |
6 | 0.006-0.025-0.1 μF | 0.3 | 1 A | 8 A |
7 | 0.025-0.1-0.4 μF | 0.5 | 2 A | 15 A |
8 | 0.1-0.4-1.5 μF | 1 | 4 A | 30 A |
9 | 0.4-1.5-6.0 μF | 1.5 | 8 A | 60 A |
10 | 1.5-6.0-25 μF | 2.5 | 15 A | 120 A |
11 | 6.0-25-60 μF | 5 | 25 A | 200 A |
12 | 25-60-250 μF | 10 | 50 A | 300 A |
7R | Resistance | 0.5 | 2 A | 15 A |
6. Time Window: (1) Window width: adjustable, 5-150 degrees (50Hz).
(2) Window position: each window rotatable 0-170 degrees.
(3) Two time windows can be controlled separately or simultaneously.
7. Pulse Peak Meter: (1) Linear indication: 0-100, error not exceeding 5%.
(2) Logarithmic indication: 1-100, error not exceeding 5%.
8. Equipped with an auxiliary zero-marking system for identifying discharge pulses.
9. Operating current: 220V±10%, power frequency.
10. Dimensions: 440×430×180mm.
11. Weight: approximately 15Kg.
| Industry Category | Measurement-Analysis-Instruments |
|---|---|
| Product Category | |
| Brand: | 武汉诺顿whnort |
| Spec: | NDJF-2008 |
| Stock: | 100 |
| Manufacturer: | |
| Origin: | China / Hubei / Wuhanshi |
