how to improve the success rate of meter reading methods and measures. Tenth, eleventh chapter explains in electronic energy meter performance testing in confusing error problem.
2013年9月9日星期一
The basic principle of sulfur hexafluoride circuit breaker
Sulfur hexafluoride circuit breaker working principle and characteristics of (a) the basic working principle of sulfur hexafluoride circuit breaker, also known as sulfur hexafluoride SF6
air circuit breaker , it is a kind of sulfur hexafluoride gas as the arc and dielectric circuit breaker. Sulfur hexafluoride circuit breaker works is when
Circuit breaker circuit breakers sulfur hexafluoride gas pressure decline, reached the first alarm, the relay followed by action and send qi pressure signal; when the gas power transformers continues to drop, reached the second alarm, the relay operates again and also issued a closure pressure signal to the circuit breaker closing circuit is disconnected, in order to achieve sub-closing latch.
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