WGSL-4 Automatic Capacitance & Dissipation Factor Test Set is used to measure dissipation factor (PF) in heavy interference site such as power plants or power substations. It can also be used in laboratory for high accurate test. The set is whole in one designed: including precision digital bridge, power unit, reference capacitor (CN), step-up transformer and other electronic circuits. It’s also using frequency shift technology, FFT (Fast Fourier Transform algorithm) and digital filtering. When started, it’s running automatically and then outputs results on LCD display and prints results automatically.
Technical Parameter
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1
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Accuracy
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Cx±（reading×1%+1pF）
PF±（reading×1%+0.00040）
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|
2
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Interference Ratio
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Interference current is no more than 2 times of the test current
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|
3
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Capacitance Range:
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Internal HV: 3pF~60000pF / 10kV，
60pF~1µF / 0.5kV
External HV: 3pF~0.5µF / 10kV
60pF~10µF / 0.5kV
Resolution 0.001pF, 4 digital
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|
4
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tgδ Range
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No limit, Resolution 0.001%, C/L/R automatic recognition
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5
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Test mode
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UST, GST, CVT
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|
6
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Input current range
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10μA~1A
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|
7
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Internal HV
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0.5~10kV / 200mA (max)
Buck-bust method: continuous stepless regulation
Test frequency: 45、50、55、60、65Hz single
Frequency; 45/55Hz、55/65Hz、47.5/52.5Hz
automatic dual variable frequency
Frequency accuracy: ±0.01Hz
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|
8
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External HV
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For UST, max test current:1A, and power frequency or variable frequency:40-70Hz
For GST, maximum test current is 10kV/1A, and power frequency or variable frequency 40-70Hz.
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|
9
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HV Accuracy
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±（reading×1%+10V), Resolving 1V
|
|
10
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Frequency select
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50 or 60Hz single frequencyt locked
55Hz/65Hz double point, locked
|
|
11
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Test Time
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40S typical
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|
12
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PC connection
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RS232
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|
13
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Power Supply
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180V~270V 50Hz/60Hz auto
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|
14
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Operating Temperature
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0℃~60℃
|
|
15
|
Humidity
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<90%
|
|
16
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Dimesion
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460×360×350mm
|
|
17
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Net Weight
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28kgs
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Measurement and Display
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Type of specimen
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Display result
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Note
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Capacitive
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Cx，PF，U，I，φ，P，F
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If |PF|>1 displays Rx and Cx, if |Q|<1 displays Rx and seriated Lx
|
|
Inductive
|
Lx，Q，U，I，φ，P，F
|
|
Resistive
|
Cx(Lx)，Rx，U，I，φ，P，F
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Accessaries
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1．
|
Host
|
1 unit
|
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2．
|
HV cable
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1 unit
|
|
3．
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LV cable
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2 units
|
|
5．
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Power line
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1 unit
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6．
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Earth line
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1 unit
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7．
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CVT wire
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2 units
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8.
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5A fuse
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2 units
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9.
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Operating Manual
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1 unit
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10.
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Calibration
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1 unit
|
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0.1Hz VLF AC/DC Hipot tester
