What are the advantages and disadvantages of GG 1A high-voltage switchgear and KYN28- 12 switchgear? What are the advantages and disadvantages of SN 10- 10 oil-deficient circuit breaker and vacuum cir

What are the advantages and disadvantages of GG 1A high-voltage switchgear and KYN28- 12 switchgear? What are the advantages and disadvantages of SN 10- 10 oil-deficient circuit breaker and vacuum circuit breaker respectively? GG- 1A anti-misoperation high-voltage switchgear is a fixed high-voltage switchgear with anti-misoperation locking device. It is suitable for three-phase AC 50Hz single bus single bus subsection system, and is used to receive and distribute the power of power grid with rated voltage of 3- 10 kV.

This cabinet adds a locking device to the original GG- 1A high-voltage switchgear to meet the requirements of "five precautions" proposed by the Ministry of Energy, namely:

1. Isolating switch to prevent on-load opening and closing;

2. Prevent straying into the electrified section;

3. Prevent misoperation and misoperation of the main switch;

4. Prevent live grounding wire;

5. Prevent disconnecting the switch with grounding wire.

KYN28- 12 central switchgear has the following advantages:

(1) Handcart is small in size, light in weight and small in space, so its size is easy to control, high in accuracy and good in interchangeability;

(2) The handcart is driven by a lead screw and moves on a special guide rail, with simple operation and accurate transmission;

(3) After the trolley is pulled out, it is carried by a special service trolley, and the height of the service trolley can be adjusted according to the height of the ground and the guide rail, so the trolley is not affected by the height and flatness of the ground;

(4) Because the handcart is located in the middle of the cabinet, the lower space of the cabinet can be used as a cable room, so the cabinet installation and cable connection space is sufficient and the operation is convenient;

(5) Because the cable room is connected to the front and back of the cabinet, the central switch cabinet can be installed against the wall. However, KYN28- 12Z central switchgear, as a new type of detachable switchgear, also has its shortcomings. The structure of this switchgear to meet the electrical function requirements is discussed as follows.

What are the advantages and disadvantages of SN 10- 10 oil-deficient circuit breaker and vacuum circuit breaker respectively?

The operating mechanism and the switch body of the invention are installed on the same frame, which has the advantages of small volume, light weight, convenient installation and adjustment and stable mechanical performance. The operating mechanism and switch body of split vacuum circuit breaker are installed in different positions of switchgear, so it is of practical significance to adjust and test various mechanical parameters of the circuit breaker. This installation method is mainly influenced by the installation method of domestic oil-less circuit breaker, and is more suitable for oil-free transformation of oil-less switchgear. Its advantages are convenient inspection and maintenance, but its disadvantages are a little trouble in installation and adjustment, and poor stability and reliability of mechanical characteristics.