Even with resistive loads, the capacitance of a shielded connecting cable may cause relay welding. 即使对于电阻性负载,屏蔽电缆的电容也可能会导致继电器触点焊接。
This charge transfer is due to the mechanical release or closure of the contacts, the contact-to-coil capacitance, and the stray capacitance between signal and relay drive lines. 这种电荷转移是由于触点的机械释放或闭合、“触点-线圈”电容以及信号和继电器驱动线路之间的寄生电容引起的。
On-line Monitoring to Insulation of Capacitance Type Equipment and Lighting Protector Development of Inverse Definite Relay Protector Controlled by Microcomputer 电容型设备及避雷器的绝缘在线检测微型计算机控制反时限继电保护装置的研制
A study on an auto compensation of capacitance current should be highly conducted to improve the technical level of the leakage check relay. 但应努力开展电容电流自动补偿的研究工作,以进一步提高检漏继电器的技术水平。