Scope of application:
Sulfur hexafluoride (SF6) gas test transformer is a new high voltage test alternative product developed on the basis of traditional oil immersed test transformer, which can be used for the detection and preventive test of various high voltage power and electrical equipment. At present, our customers are mainly: GIS, transformer, insulation parts, research and test platform, etc.
Typical parameters:
Type |
GTU-□kVA/□kV |
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HV rated voltage,kV |
150 |
300 |
550 |
600 |
800 |
1000 |
1250 |
HV rated current A |
≤4 |
≤4 |
≤4 |
≤4 |
≤3 |
≤3 |
≤3 |
Low voltage rated voltage kV |
0.38、3、6、10 |
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Rated short-time power frequency withstand voltage,kV |
165 |
330 |
605 |
660 |
880 |
1100 |
1375 |
Rated frequency,Hz |
50或60 |
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Partial discharge pC |
80%Un下,≤3pC(In good condition<1pC) |
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SF6 gas annual leakage rate |
≤0.3% |
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Duty cycle |
Operate for 5 minutes, stop for 5 minutes,20 cycles a day. or design and manufacture |
Performance features:
1. Small size and light weight. Compared with the traditional oil immersed light-duty test transformer of the same capacity level, its weight is reduced by 20% - 60%, and it is easy to move, which is very suitable for the enterprises and institutions that often change the test site;
2. The voltage level of the test transformer can reach 1250kv, the capacity is 4a, and the traditional products are also improved;
3. Rich interfaces and multiple function modules for users to choose;
4. The insulating medium is gas, so the test can be done without static waiting after moving, which greatly saves working time;
5. Clean without oil pollution;
6. The insulation strength is obviously higher than that of oil immersed type, and the corona is very small;
7. Because it is not interfered by the electromagnetic field of the surrounding environment, it does not need to build a shielding test hall, and its background noise level can reach 0.1pc;
8. The partial discharge level of the whole test system can be controlled below 1pc.
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