Digital Partial Discharge Detecting Tester , Double Channels PD Detector

1.Product introduction:

JDF-2000 Partial Discharge Detector is used for partial discharge detection for HV transformers, CVT, mutual inductors, reactors, capacitors, HV bushings, arresters, motors, etc. The instrument integrates functions of computer control, digital sampling and printing.Partial discharge detection is an important PD instrument for inspecting the quality of electric equipments.

II.Main Components:

III. Detecting principle figure

Note : The PD free test transformer set (power frequency voltage withstand test set) rises the target testing voltage to tested object (such as power transformer ,CB, bushing, CT,PT ,discloser and so on )which PD detecting needed , the coupling terminals of voltage divider will has some PD coupling signal to the PD detecting tester JFD 2000, then get the PD level from the tested object.

VI. Technical features

1. Program controlled working method.

2. Character display and indication..
3. Store and print data.
4. Automatically produce test report.
5. 2D and 3D image for PD measurement.
6. Adopts digital windowing technique, with strong anti-interference ability.
7. Two or four channels measurement and digital difference technique, can test PD signal of two measuring points for one or two specimens, convenient to analyze PD signal source.

V. Technical Parameters of PD tester XD2014

1) Power: 0~220V (1±10%), 50Hz (1±3%)
2) Detection sensitive: <0.02pC
3) Detection channel: 2 or 4 channels
4) Sampling rate: 20MHz per channel
5) Sampling accuracy: 12Bit
6) Measuring signal frequency range: 0.1pC~1000nC
7) PC operation system: Windows XP
8) Bandwidth selection:

• Low side: 10, 20, 30, 80kHz (OFF)
• High side: 100, 200, 300, 1000kHz (OFF)

9) Gain gear: 5 gears
10) Linearity error: ±5%
11) Positive and negative pulses corresponding asymmetry error: ±5%
12) Range switching error: ±5%
13) Low repetition pulse corresponding error: ±5%
14) Synchronizing function: automatically synchronizing inside and outside, can synchronize with any frequency.
15) Windowing function: windowing in any phase, can open symmetrical window, positive window, anti window
16) Measuring mode: calibration, measuring, graphic analysis and other modes.

17) Tuning capacitance range of detection impedance: 25pF~6000pF
18) Output range of calibration pulse generator: 10pC~2000pC
19) Injection capacitance of calibration pulse generator: 50pF,200pF
20) Pulse distinguishing time of calibration pulse generator: <100ns23)

21)Calibration voltage step-up time of calibration pulse generator: <60ns

22) Calibration voltage step-down time of calibration pulse generator: >100μs

VI. Optional matched other test set

• PD detecting AC high voltage generating systems : CQSB series PD free power frequency test transformer systems

FKWJF series Induced voltage withstand test systems for Power transformer

• PD signal coupling unit : Coupling voltage divider or standard coupling capacitor , no corona type

Founded in 2003, FANKE is the domestic leader specializing in designing and manufacturing HV test, measurement and overhaul equipments. In 2003, Wuhan HIGHVOLT Co.,Ltd is established as our subsidiary. We provide a diversity of complete testing solutions and one-stop service for electric power companies, electric research institutions and electric equipments manufacture companies.
Located in Guannan Science and Technology Industrial park-- the Optical Valley of China, we cover an area of 12,000 square meters used for workshop and offices.With the registered capital of 16,000,000 yuan, our annual sales volume reaches 70,000,000 yuan. As a sub-measurement unit of Wuhan city, we develop us as a comprehensive high-tech enterprise integrating research, development, production, installation, commission, sales and service consultancy.

Good networking keeps us stay advantageous and innovative in the market. Relied on the wide cooperation with institutions of higher learning in Wuhan, we establish a HV research center supported by professional HV engineers and specialists from Wuhan High Voltage Research Institute of State Grid, Institute of Water Conservancy and Hydroelectric Power of Huazhong University of Science &Technology and Wuhan University.

Our management team is composed of professional administrators with rich experience in modern business and project management and technical personnel specializing in HV, power transmission, transformation and automation. Until now, we employ 75 stable workers, 65% of whom have bachelor degree and some of the rest are advanced engineers and professional experts with Doctor degree.

We hold numerous intellectual property rights, utility model and invention patents for products, such as hydraulic integrated high voltage withstand test system, series resonant test trail, ultra high voltage AC/DC voltage withstand test equipment, power frequency PD free voltage withstand test equipment and other electric power maintenance equipments as well as other tailor-made products.
Our products have been applied for onsite handover, preventive maintenance and quality inspection test. We have customers all around the country, including stated-owned institutions and large-scaled enterprises in sections of railway, oil industry and chemical engineering. Some products have been exported to overseas markets, including USA, Mid-east, Korea, India and Vietnam, ect.

With a vision to win-win result, We will continue to focus on customer needs and rely on technical innovation, striving to become the top-ranking provider for electric testing and measurement equipments and EPC engineering service.