Voltage stabilizer Operational use Eight hour working day

AC contactor which is the basic duty. Contactor Conventional thermal current parameters is determined Click duty, under normal circumstances the specifications of various series contactors are Inverter Power Supply‍ suitable for eight hour working day. Such duty contactor which closes the main contact in the case of thermal equilibrium can be achieved by the rated current, but after eight hours should be divided.

Uninterrupted work system

Such work system is a long-term work system, that is the main contacts remain closed for the duration of carrying a steady current of more than eight hours (a few weeks or even years) is not breaking current working system. Contacts in the contact oxidation and long-term accumulation of dust in working condition electric transformer‍ unchanged easy voltage stabilizer, these factors will lead to the deterioration of thermal conditions, phase to phase, relatively insulated reduce creepage phenomenon even prone to short-circuit. When the conditions required to work in this type of work contactor system, AC contactor must derating or special design, easy to gather dust should use, creepage distance between the larger models. Dusty and corrosive gas environment should pay special attention to this issue.

Short-time working

In contact with the main contact system under this type of work remain closed is not enough time to make contacts to reach thermal equilibrium, there is no load load periods separated by periods, while the load time enough to make contact with the temperature back to the initial state temperature (ie cooling medium temperature). Energy Meter‍ Short-time working contactor contacts energizing time standard value 3,10,30,60 and 90min.