2016-05-10

In the last hundred years, the earth's climate is undergoing a significant change with global warming as the main feature. This global warming is caused by both natural climate fluctuations and the greenhouse effect, which is enhanced by human activities. Reducing greenhouse gas emissions and mitigating climate change are the main objectives of the United Nations Convention on Climate Change and the Jingdong Agreement. Therefore, our country is facing more and more international pressure to redu

Learn More

2016-04-30

Winfoss inspection technicians point out that if the circuit breaker SF6 gas is found to be significantly leaking, the following treatment should be done:

Learn More

2016-04-29

Winfoss technicians should pay attention when dealing with high-voltage electrical equipment filled with SF6 gas for recovery and inflation: Before on-site treatment, SF6 gas in the equipment should be recovered through the SF6 gas recovery device, and then SF6 gas recharge work can be carried out (it is strictly prohibited to directly discharge into the atmosphere);

Learn More

2016-04-17

There are many ways to detect SF6 gas leaks. Because sulfur hexafluoride is a negative electric gas, it has the characteristic of absorbing free electrons to form negative ions, and the methods of leak detection are mostly made use of this characteristic. There are four commonly used sulfur hexafluoride gas leakage detection methods: ultraviolet ionization detection, electron capture detection, vacuum high frequency ionization detection and negative corona discharge detection.

Learn More

2016-04-16

In the gas discharge, the negative ions of SF6 gas play a role in hindering the formation of discharge on the one hand, because the average free stroke of ions in SF6 gas is shorter than that of electrons, so the energy obtained is small. On the other hand, when ions collide with molecules, it is easy to lose the original accumulated energy. As a result, the ion has little chance of accumulating enough energy, and its ionization capacity is much lower than that of an electron. When a neutral ato

Learn More

2016-04-14

Under a uniform electric field, the insulation strength of SF6 gas is about 2.5 to 3 times that of air under the same pressure. At 3 atmospheres, the electric field strength of SF6 gas is equivalent to that of transformer oil. Therefore, SF6 gas is a gas medium with high insulation strength

Learn More