Inspection And Operation Of Power Fittings, High And Low Voltage Electrical Equipment

Isolator switch Inspection and operation of high and low voltage electrical equipment:
What is the working principle of high voltage fuse in the circuit?
The breaker is a protective element of the circuit or equipment, used for short circuit and overload protection of small load distribution lines and distribution transformers.
When the short circuit current flows through the breaker, the thermal element itself is heated and melted, thereby cutting off the circuit to achieve the purpose of protection.
What are the characteristics of the spring operating mechanism?
Compared with the electromagnetic operating mechanism, the biggest feature of the spring operating mechanism is that it can realize AC operation without complex DC equipment, which provides conditions for simplifying the equipment and is therefore widely used.
What is the function of the power hardware disconnector?
The main function of the disconnector is to isolate the power supply, which is convenient for maintenance and switching of the power supply. It has no arc extinguishing device and can only switch on and off small currents but cannot disconnect load currents. This switch has a clear disconnection point and sufficient insulation capacity to ensure the safety of people and equipment.