GDJF-2008 Partial Discharge Detector------Thanks for your choosing HV Hipot

GDJF-2008 Partial Discharge Detector

GDJF-2008

Partial Discharge Detector is measuring partial discharge for the products such as transformers, mutual inductors, HV switche,zinc monoxide arresters and power cables. It also can make type tests and monitor insulation operation.

This type has the advantages of high sensitivity, wide range of capacitance, being well equipped for input unit impedance detecting and more variants of frequency bands ( 9 in all). After proper setting, the discharge impulse amount can be read directly.

The indicating and digital meters are shown simultaneously.

This detector is widely applied in power stations, manufacturers and institutions.

Use Condition

  • Ambient temperature: 0-40℃±2℃
  • Relative humidity: ≤80%
  • Power supply: 220V±10%50HZ
  • No violent vibration and mechanical shock
  • The device should be placed in the environment with no dust and corrosive, good ventilation. It should not be interfered by strong electromagnetic
  • Earthing requirements: earthing resistance <1Ω
  • Capacitance range to be tested 6PF-250μF

Testing sensitivity (shown in Table.1)

Input unit

No.

Tuning capacitance

Unit

Sensitivity(pC)

(Unsymmetrical 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

mF

0.3

7

0.025-0.1-0.4

mF

0.5

8

0.1-0.4-1.5

mF

1

9

0.4-1.5-6.0

mF

1.5

10

1.5-6.0-25

mF

2.5

11

6.0-25-60

mF

5

12

25-60-250

mF

10

7R

Resistance

0.5

Table 1

Amplifier band

  • Low terminal: 10KHZ, 20 KHZ, 40 KHZ (optional)
  • High terminal: 80 KHZ, 200 KHZ, 300 KHZ (optional)
  • Amplifier gain adjustment
  • Coarse control – there are 6 gears for coarse tuning, the gain of each gear is 20±1db
  • Fine control ≥ 20 db

Time windows

  • Width of window, adjustable 15o—150o
  • Window position, adjustable 0o—170o
  • Two windows can be opened simultaneously or separately.

Discharge meter

Digital display

  • PD display: LED 3½ digits
  • l 0-100.0 limit of error <±3% (full scale)
  • Ellipse time base
  • Frequency: 50Hz and arbitrary frequency
  • Elliptic display color is yellow
  • Elliptic rotation: each gear is 30°, 180 ° rotation can be made.
  • Display: ellipse – straight line
  • High frequency time base elliptical input voltage less than 220 V, intake power < 1 VA

Waveform lock

  • Lock required waveform of any time to facilitate observation and analysis

Testing Voltage meter

  • Range: 100KV (Can be expanded)
  • Display 31/2 digital voltage meter
  • Accuracy: better than ±2% (full scale)
  • Inside, outside the zero mark function

Dimensions: 450×450×190 mm

Weight: about 16kg

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