本文从唐山地震中变电站少油断路器的实际震害出发,分析其破坏机理,采用迭层橡胶减震器进行底部隔震,以提高其抗震能力。本文还扼要介绍了断路器及其减震体系实物在振动台上模拟地震振动试验结果,并与程序计算结果进行了比较。结果表明:采用减震器进行底部隔震具有明显的减震效果,可以考虑在工程中逐步应用。 This paper starts with the actual damage of the low oil circuit breaker in the substation of Tangshan Earthquake, analyzes its damage mechanism, and uses a laminated rubber shock absorber to perform bottom isolation to improve its seismic resistance. In this paper, we briefly introduce the simulation results of the circuit breaker and its damping system on the vibration table and compare it with the calculation results of the program. The results show that the use of shock absorbers for bottom isolation has a significant shock absorption effect and can be considered for gradual application in engineering.