10KVA High Voltage Switchgear

# Structural Composition

- **Switchgear Cabinet**: Generally made of high-quality steel plates or stainless steel plates, it is the main structure of the switchgear,

 used to support and protect the internal electrical components, providing mechanical strength and protection functions.

- **Circuit Breaker**: The core component of the switchgear, which can cut off and connect the circuit under normal and faulty conditions,

 and has the arc extinguishing ability. Examples include vacuum circuit breakers of models such as ZN63 and VS1.

- **Contactor**: Mainly used to control the on-off of motors or other loads.

- **Instrument Transformers**: Including current transformers and voltage transformers, which are used to measure the current and voltage 

parameters in the circuit and provide signals for measurement, protection and control devices.

- **Secondary Control Circuit**: Connected to the primary equipment through control cables, it realizes functions such as remote monitoring,

 control, protection and signal transmission of the switchgear. It contains various components such as relays, instruments, indicator lights and control switches.

###Working Principle

During normal operation, the 10KVA high voltage switchgear transmits electrical energy from the power source side to each branch circuit

 through the busbar. The circuit breaker is in the closed state, and the current flows to the load through components such as the circuit breaker

 ad isolating switch. The secondary equipment monitors and controls the operating parameters of the primary circuit, such as measuring

 voltage, current, power, etc., to ensure that the circuit operates within the normal range. When a fault occurs in the circuit, such as a short 

circuit or overload, the fault current will cause the protection device to act, sending a tripping signal to the circuit breaker, and the circuit breaker

 quickly cuts off the circuit to protect the equipment and lines from the damage caused by faults such as overloads and short circuits.

Youtube：https://youtube.com/shorts/nGIh380QnyM   

### Functional Characteristics

- **Control Function**: It can control the on-off of the 10kV circuit, realize the start and stop operations of electrical equipment, and meet 

different power consumption requirements.

- **Protection Function**: It has functions such as overload protection, short-circuit protection and grounding protection. When an abnormality

 occurs in the circuit, it cuts off the power supply in a timely manner to protect the safety of equipment and personnel.

- **Measurement Function**: It can measure and display parameters such as voltage, current, power and electrical energy in the circuit, providing 

accurate electrical parameter information for operators, which is convenient for monitoring and analyzing the operating status of the power system.

- **Isolation Function**: The switchgear is isolated from the external environment through components such as insulators to ensure personal safety.

### Application Fields

Power Industry**: Used in places such as substations and switchrooms to realize the distribution, control and protection of electric power,

 ensuring the stable operation of the power system.

Industrial Field**: Factories in industries such as petroleum, chemical, mining and metallurgy, providing control and protection of high-voltage

 power supplies for various large-scale equipment and production lines.

Commercial Field**: Commercial buildings such as shopping malls, office buildings and hotels, used to provide reliable power supply and 

control for equipment such as elevators, air conditioners and lighting in the buildings. 

The prices of 10kV high-voltage switchgear. The prices of 10kV high-voltage switchgear vary depending on factors such as the type of 

switchgear, configuration, brand, etc. The following are the price ranges of some common 10kV high-voltage switchgear:

- **Ring Main Unit (RMU)**: For example, the XGN15-12 type, the price is generally around 350 US dollars to 8000 US dollars.

- **Armored Draw-out Switchgear**: Such as the KYN28A-12 type, the price is roughly between 1500 US dollars and 15000 US dollars.

- **High-voltage switchgear in packaged substations**: The price may be between 1000 US dollars and 3900 US dollars.

- **Schneider's 10kV high-voltage switchgear with double-layer circuit breakers**: Models such as MVnex-12, the price of a single unit is

 19,999 Chinese yuan.