FIVESTAR HV TESTING EQUIPMENT, operating in the electricity industry, specializes in developing and providing high-voltage testing equipment, including AC Dielectric, HV DC Voltage, Impulse Voltage, Impulse current and other special tests. We offer comprehensive solutions for research, manufacturing, or maintenance purposes.
Model：FRST-G
Voltage：50-1200kV
Output Frequency：20-300Hz
The GIS impulse voltage generators are specially design for impulse voltage testing of gas-insulated switchgears (GIS).
They are metal-clad encapsulated, can be directly flanged to test object, so test system and test object are fully encapsulated. This allows a space saving test setup without safety clearances between test system or test object and walls or other objects.
Test system mainly consists of impulse voltage generator, charging device, damped capacitive divider, automatic control and measure system, and other optional components (supporting resistors, glaninger circuit, etc).
The circuit of impulse generator is the Marx multiplier circuit. Impulse capacitors arranged in the stages of the generator are charged in parallel with DC voltage up to 100kV against earth potential and, in order to generate impulses, connected in series by spark gaps. For adjustment of front time and time to half value of the test impulse, the generator stages comprise front wave resistors and tail wave resistors. A short discharge loop guarantees low internal inductances and smooth voltage shape.
