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GOZ-JFY Partial Discharge Test Device

GOZ-JFY Partial Discharge Test Device
  • Partial Discharge Test Device
设备概况
     GOZ-JFY partial discharge test device is a recent newly development and is widely applicable to partial discharge measurements of transformers, mutual inductor, high voltage switch, zinc oxide arresters, high voltage power cable and other electrical products, type testing and insulated running monitoring etc.
 
设备图解
 
设备特性
 1.The device has high sensitivity, wide range of sample capacity coverage, full equipped input unit (detection impedance) and multi-band combinations (nine kinds).
2.The device can directly read the amount of pulse discharge after properly calibration.  
3.The device uses a color LCD screen display which differs from the traditional CRT, for it is easy to observe and analysis with a waveform lock function. 
设备参数
 1.Using Condition 
Temperature: 0~40℃±2℃
Relative humidity: < 80%
Supply power: 220V±22V, 50Hz
No severe vibration and mechanical shock.
Air does not contain enough dust which may corrode device
Should not be affected by strong electromagnetic interference.
Good ventilation.
Grounding requirements: grounding resistance <1Ω.
2.Tested product capacitance range: 6PF--250μF
3.Test Sensibility(check table 1)
Table 1
Input unit No.     Tuning Capacitor     Unit     Sensibility (rrC)
 (asymmetric circuit)
1                6-25-100            pF        0.02
2                25-100-400          pF        0.04
3                100-400-1500        pF        0.06
4                400-1500-6000       pF        0.1
5                1500-6000-25000     pF        0.2
6                0.006-0.025-0.1      μF         0.3
7                0.025-0.1-0.4         μF         0.5
8                0.1-0.4-1.5           μF         1
9                0.4-1.5-6.0           μF         1.5
10               1.5-6.0-25           μF        2.5
11               6.0-25-60            μF         5
12               25-60-250           μF        10
7R               Resistance                     0.5
4.  Amplifier band:
①  Low-end: 10kHz, 20kHz, 40kHz optional
②  High-end: 80kHz, 200kHz, 300kHz optional 
5.  Amplifier gain adjustment:
Coarse six stall, between stalls gain 20±1db; fine range >20db. 
6.  Time window: 
①  Time window displayed in yellow
②  Window width: adjustable range 15 ° ~ 150 °
③  Window position: each window can be rotated 0 ° ~ 170 °
④  Two time windows can be opened separately or simultaneously
7.  Discharge scale:
Digital meter: showed 3½LED digital meter
0-100.0  error <± 5% (at full scale caculated)
8.  Oval time base: 
Frequency 50Hz and arbitrary frequency
Oval displayed in blue
Elliptical rotation:  30 °as a file, can have 180 ° rotation
Display: Oval - Linear
High frequency oval time base input voltage <220V, its uptake power <1 VA
9.  Waveform lock: can lock any time desired waveform which is easy to observe and analyze 
10.  Voltmeter test: 
①   Range: 100kV (extensible)
②   Display: 3½ digital voltmeter indication
③   Accuracy: better than ± 5% (at full scale caculated)
11.  Internal or external zero mark function
12.  Size: 450 * 450 * 190 (W * D * H) mm3
13.  Weight: about 15kg
 
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