GDJF-2008 Partial Discharge Detector-partial discharge detector 

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    Product Description

    GDJF-2008 Partial Discharge Detector is measuring partial discharge for the products  such as transformers, mutual inductors, HV switches, 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

    uF

    0.3

    7

    0.025-0.1-0.4

    uF

    0.5

    8

    0.1-0.4-1.5

    uF

    1

    9

    0.4-1.5-6.0

    uF

    1.5

    10

    1.5-6.0-25

    uF

    2.5

    11

    6.0-2.5-60

    uF

    5

    12

    25-60-250

    uF

    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 steps for coarse tuning, the gain of each step 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

    0-100.0    Error <±5% (full scale)

    • Ellipse time base

    Frequency: 50Hz,100Hz,150Hz, 200Hz,400Hz

    Elliptic display color is yellow

    Elliptic rotation: each step is 30°, 120 ° rotation can be made.

    Display: ellipse – straight line

    Enable to adjust high-frequency time base ellipse to normal size according to input voltage (13-275V)., 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 by 3½ digital voltage meter

    Accuracy: better than ±5% (full scale)

    • Inside, outside the zero mark function
    • Dimensions: 450×450×190 mm
    • Weight: about 15kg



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    Tel: +86-27-85568138
    Fax: +86-27-65606183
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