Definition of load switch: The load break switch in a three phase pad mounted transformer is a switchgear used to switch on and off a circuit under load. It is usually installed on the high-voltage side of the three phase pad mounted transformer, which is used to control the inlet and outlet circuit, protect the equipment, and ensure the reliability and safety of the system.
Function of load switch: 1. Switch on and off the load current. 2. Isolation function. 3. Operation mode.
Load break switch installation position: The load break switch is usually installed on the high-voltage side of the three-phase pad mounted transformer and is connected to the transformer body through the switch cabinet or the load switch box. The design of the pad mounted transformer is compact, and the structure of the load switch also tends to be modular to save space. The load break switch is an important part of the three phase pad mounted transformer, and its design and selection are crucial to the safety and reliability of the distribution system.
Classification of load switch: 1. 2 position load break switch. 2. 4 position load break switch.
2 position load break switch: The 2-position load switch has two operating positions, namely “Closed” and “Open”. It can only perform the basic operations of switching on and off the circuit.
4 position load break switch:
Position 1: Source A&B tap off
Completely disconnect the high voltage power supply and disconnect the transformer from the power grid. This is the safe position of the load switch in case of maintenance or failure.
Position 2: Source A tap on
Connect to Feeder A or input line A. The transformer obtains power from the grid through Feeder A.
Position 3: Source B tap on
Connect to Feeder B or input Line B. The transformer obtains power from the grid through Feeder B. This location is often used as a backup or backup power source.
Position 4: Source A&B tap on
Both AB channels are connected, forming a ring network
After the training, the participants have said that the training content is rich and practical. SCOTECH said it will continue to carry out more professional training to enhance the professional skills of its employees and improve the overall technical level of the industry.
SCOTECH Corporation is a leading power equipment manufacturer specializing in the development, production and sale of high-quality transformers. The company has advanced production facilities and a first-class technical team dedicated to providing innovative and reliable power solutions to customers around the world. Our products are widely used in many fields such as power, industry, construction and transportation, and have won the high trust of customers for their excellent performance and stability. The company adheres to the principle of technological innovation and customer first, and constantly promotes the development and application of power equipment technology. We are committed to contributing to the safe, stable and efficient operation of the global power system by providing quality products and professional services.
