Correct Operation of Copper Busbar Processing Machine

Operators shall follow the official operation manual strictly and avoid irregular operations that may cause personal injury and equipment damage. Keep dies and accessories intact at all times and get familiar with the machine structure, performance and operating methods. Die installation, commissioning and disassembly shall only be conducted by skilled staff in accordance with standard procedures. Never place hands or any body parts between upper and lower dies while the machine is running to prevent accidents.

Function of Leakage Protector

The leakage protector is a current-operated leakage protection device. It applies to power supply systems with grounded neutral points including TT and TN systems, as well as certain ungrounded neutral IT systems with large earth capacitance. It is not applicable to phase-to-phase electric shock protection.

According to the Technical Specification for Temporary Electricity Use on Construction Sites (JGJ46-88), leakage protectors are mandatory for temporary site power supply. The Chapter 9 Temporary Power Safety Protection of Beijing Construction Site Safety Protection Standard issued in 2003 also stipulates hierarchical installation of leakage protectors on distribution circuits. Proper installation of such devices plays a vital role in safe power utilization.

Unreasonable configuration commonly leads to malfunction issues. The terminal protector fails to trip while the upper-level one triggers mistakenly, making faults hard to locate and eliminate and hindering construction progress. Some construction teams even remove leakage protectors illegally, bringing severe potential safety hazards.

Three-phase Alternating Current

A power system composed of three alternating circuits with identical frequency, equal potential amplitude and 120-degree phase difference is defined as three-phase alternating current.

Primary Equipment

Devices directly involved in power generation, transmission and distribution are primary equipment, including high-voltage circuit breakers, disconnectors, busbars, power cables, voltage transformers, current transformers, reactors, arresters, arc suppression coils, shunt capacitors and high-voltage fuses.

Secondary Equipment

Auxiliary devices used for monitoring, measurement, control and protection of primary equipment, such as relays, signal units, measuring meters, waveform recorders, remote measuring and signaling devices, control cables and miniature busbars.

High-voltage Circuit Breaker

Also known as high-voltage switch. It can switch on and off no-load current and load current. When system faults occur, it cuts off overload current and short-circuit current driven by relay protection systems. Equipped with reliable arc extinguishing structure and strong current breaking capacity, it is widely adopted on busbar processing machines.

Magnetic component design is essential for switching power supplies. Planar transformers boast prominent performance advantages and have gained extensive application in recent years.

For an ideal transformer, all magnetic flux generated by the primary coil passes through the secondary coil with no flux leakage. Conventional transformers generate leakage inductance since partial flux cannot penetrate the secondary coil, resulting in insufficient electromagnetic coupling. The planar transformer adopts single-turn mesh-shaped secondary winding made of copper sheet instead of traditional enameled wire, which is closely attached to multiple stamped ferrite cores of identical size.