Short-circuit test generators of 135–6500 MVA
Short-circuit test generators of 135 to 6500 MVA for high-voltage equipment test centres. They feed the test benches on which circuit breakers, transformers and other equipment are checked for withstand of short-circuit currents. Manufactured in Harbin, China.
- Output
- 135–6500 MVA
- Versions
- 6500 MVA; 4500 MVA (100 Hz)
- Supplies
- more than 30 machines for 13 testing organisations in China
- Impulse generators
- vertical 300 MVA
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
Short-circuit test generators are special synchronous machines for test centres. They are used to check circuit breakers, transformers and other equipment for withstand of short-circuit currents and breaking capacity. The generator works in short cycles, during which a powerful short-circuit current is applied to the apparatus under test.
The principle of operation of such a test bench is simple: the rotor is accelerated to operating speed, and then the energy stored in the rotating mass is briefly released to the stator windings. In this way the test centre obtains on the bench a current and power that cannot be taken from the supply grid without overloading it. To select a generator, the short-circuit power required by the test programme, the rated frequency, the voltage and the cycle duration are checked. The values of these quantities for a specific machine are not given in the available materials, so they must be requested from the manufacturer together with the list of apparatus to be tested and the required test currents and voltages.
According to the website of the company, short-circuit test generators of 135 to 6500 MVA are produced. The versions include 6500 MVA and 4500 MVA machines, the latter for 100 Hz. More than 30 such generators have been supplied to 13 testing organisations in China.
The same product group includes impulse generators, including a large vertical 300 MVA impulse generator for scientific and test installations. Design parameters, including voltage, rotational speed, excitation system and dimensions, are not given in the available materials and are clarified with the manufacturer.
Technical specifications
| Output | 135–6500 MVA |
|---|---|
| Versions | 6500 MVA; 4500 MVA (100 Hz) |
| Supplies | more than 30 machines for 13 testing organisations in China |
| Impulse generators | vertical 300 MVA |
Request a price and lead time
Short-circuit test generators of 135–6500 MVA. We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
Questions and answers
What output range do the short-circuit test generators cover?
From 135 to 6500 MVA, including 6500 MVA and 4500 MVA machines for 100 Hz.
How many such generators have been supplied?
More than 30 machines for 13 testing organisations in China.
Are impulse generators produced?
Yes, the same product group includes a vertical 300 MVA impulse generator for scientific and test installations.
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