利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN104753360A 三相电源的相序切换装置 无效 - 撤回

三相电源的相序切换装置
摘要：
本发明提供一种三相电源的相序切换装置，在设置用于切换相序的结构的情况下，不会因振动或噪音等的影响而产生相间短路。本实施方式的三相电源的相序切换装置设于从三相电源向负载的供电路径上，具备：电源侧继电器，在三相电源的二相分别连接c触点型继电器而构成；负载侧继电器，在电源侧继电器和负载之间分别连接c触点型继电器而构成；切换电路，连接于电源侧继电器和负载侧继电器之间，配线为通过继电器动作，可对将三相电源正相连接来向负载侧供电的状态和将三相电源逆相连接来向负载侧供电的状态进行切换。
摘要（英）：

The invention providse a phase sequence switching device for a three-phase power supply, which prevents the generation of interphase short circuit caused by vibration or noise on the condition of arranging a structure for switching phases. The phase sequence switching device for the three-phase power supply is disposed in a power feed path from a three-phase power supply to a load and includes a power-supply side relay including two Form C contact relays connected to two phases of the three-phase power supply respectively, a load side relay including two Form C contact relays connected between the power-supply side relay and the load, and a switching circuit connected between the power-supply side relay and the load side relay and wired to be capable of switching by a relay action between a state where the three-phase power supply is connected to a positive phase so that power is supplied to the load side and a state where the three-phase power supply is connected to a reverse phase so that power is supplied to the load side.

0/0