Interference-proof measures of time relay are discussed in this paper by analysing maloperation causes of time relay under the conditions of interference by D.C. source and EM.

• 通过对时间继电器在直流电源干扰和电磁干扰情况下的误动原因分析，初步论述了时间继电器在这种干扰条件下的抗干扰措施。