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WEAK DAMPED-CAPACITIVE IMPULSE VOLTAGE DIVIDER
Category : Electric Equipments
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Application
GVD series weak damped-capacitive impulse voltage divider are used to measure high voltage full and tail chopped lightning and full switching impulses. Provided with an adequate additional secondary part, it can also be used for alternating voltage measurements.
Design
The voltage divider consists of several stages of impulse capacitors connected in series. The weak damped resistors adopt the multi-stage layout, impulse capacitors are of no inductance, low voltage arm consists of non-inductive leaded multilayer ceramic capacitor.
The HV arm is installed on the basis of removable metal plate with wheels. The secondary unit includes a capacitor and a damping resistor of low inductance both arranged in a coaxial design. The unit is fixed at the bottom of the voltage divider and can be easily exchanged.
There is corona rings on top to avoid abnormal flashover or discharge when the impulse test is being carried out
Technical Specification
Model No Rated Voltage L.I. 1.2/50μs
kV Rated Voltage S.I. 250/2500μs kV Rated Capacitance pF
GVD-400/300 300 240
300~600
GVD-400/400 400 320
GVD-400/600 600 480
GVD-300/800 800 640
GVD-300/900 900 720
GVD-300/1200 1200 960
GVD-300/1600 1600 1280
300~1000
GVD-300/1800 1800 1440
GVD-300/2400 2400 1920
GVD-400/3000 3000 2400
GVD-400/3600 3600 2880
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