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With the requirements of circuit breaker's insulation and arc-interruption characteristics tests, a modular multi-function experimental platform is designed. The designed experimental platform takes the insulation and arc-interruption characteristics of the dielectrics in vacuum chamber and gas chamber as the experimental subjects; taking impulse generator, DC voltage source, current source, and frequency...
SF6 circuit breakers are widely used in power system because of its excellent arc interruption performance. But the liquefaction of SF6 gas at extreme cold area affect the reliability of the circuit breakers. To solve the problem, an intelligent temperature control system for the SF6 circuit breakers at cold area, the internal heating belt and their installation methods are designed in this paper...
Aiming at the bad air intake measuring consistency and temperature compensation of vehicle engine, combing the characteristics of quick response of thermocouple flow chips and simple signal processing, based on Seeback Effect principle; thermocouple vehicle engine intake flow sensors are developed. Through bench test of engines, take calibration on sensors. Flow within the range of 0.1–1.0Kg/s, the...
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