- Rated Voltage: 24kV, which refers to the voltage class at which the plug-in connector can operate stably for a long time.
- Power Frequency Withstand Voltage (AC): Generally 54kV for 5 minutes. That is, the plug-in connector should not have insulation breakdown or other faults when it is under an alternating current voltage of 54kV for 5 minutes.
- Partial Discharge: Under a voltage of 21kV, the partial discharge quantity should be less than 10pC. Partial discharge refers to the phenomenon of local discharge at some defective parts inside the insulation due to reasons such as electric field concentration. A smaller partial discharge quantity helps to ensure the long-term performance of the insulation.
- Impulse Voltage: Usually 125kV. The plug-in connector should be able to withstand an impulse voltage of 125kV without insulation damage. The impulse voltage simulates overvoltage situations such as lightning impulses or switching impulses that may occur in the power system.
- Insulation Resistance: Although the specific value is not clearly given, generally, the insulation resistance is required to be very high to ensure good insulation performance and prevent situations such as electric leakage. Generally speaking, the insulation resistance should be greater than or equal to 1000MΩ or even higher.
- Shielding Resistance: Less than 5000Ω. Good shielding performance can effectively prevent electromagnetic interference, ensure a uniform electric field distribution inside the plug-in connector, and improve the reliability of insulation.
The 24kV front - plug - in connector is a crucial electrical component designed for high - voltage power distribution systems. It is mainly used for the connection and disconnection of 24kV power cables to electrical equipment such as switchgear, transformers, and other devices.
This type of connector features a front - plug - in design, which allows for easy and convenient installation and removal. It is equipped with advanced insulation materials and structural designs to ensure reliable insulation performance and electrical conductivity. The connector can effectively withstand the high voltage of 24kV and the corresponding electrical stress, ensuring the safe and stable operation of the power system.
Typically, the 24kV front - plug - in connector is made of high - quality conductive materials to minimize the contact resistance and reduce the heat generation during the current transmission. Its mechanical structure is also designed to be robust and durable, capable of withstanding the mechanical forces and vibrations that may occur during the operation of the power system.
In summary, the 24kV front - plug - in connector plays a vital role in the 24kV power distribution network, providing a reliable and efficient connection solution for power transmission and distribution.
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