Fully insulated and fully sealed and fully inflated, called the inflatable cabinet;
The middle cabinet, the middle high voltage cabinet, is the circuit breaker can be drawn out, from the following points to analyze the difference between the inflatable cabinet and the middle cabinet, I hope to help you understand!
1. Different properties
The middle cabinet is used as the removable cabinet body of the handcart, and the circuit breaker is adopted.
High voltage switchgear as a fixed switchgear cabinet, the use of load switch.
2. Different applications
The middle cabinet is mainly used for high voltage load protection;
High voltage switchgear is mainly used for the distribution of high voltage power supply, the high voltage power supply is divided into multiple outgoing lines.
3. Different structure
The upper layer of the middle cabinet is provided with a bus and instrument room (isolated), the middle layer is provided with a circuit breaker room, and the lower layer is provided with a cable room;
The high voltage switchgear uses a common SF6 load switch connected to a set of systems through a copper bar.
4. Fixed in different ways
The middle cabinet is handcart type (removable), switchgear such as KYN28-12(GZS1), high voltage switchgear shell, ring network cabinet is a fixed switchgear cabinet body;
5. The switch is different
High voltage switchgear generally adopts load switch, the middle cabinet generally adopts circuit breaker;
6. Different uses
Medium cabinet is usually referred to as KYN28 cabinet, handcarriage type high voltage switchgear, usually used to protect the back end transformer, or other high voltage load.
7. Different functions
High voltage switchgear is mainly used for high voltage power distribution, one way or two high voltage power supply is divided into multiple high voltage power output;
The middle cabinet is mainly used for high voltage load protection.
8. Different forms of existence
High voltage switch cabinet has two forms of air insulation and fully closed filling cabinet. The air insulation is connected into a set of system by the ordinary SF6 load switch through the copper bar. The fully closed filling cabinet has a special connecting appliance in addition to the power supply inlet and outlet line.
9. Different meanings
The full name of the central cabinet is armoured removable central metal enclosed switchgear, which is divided into three layers: the upper layer is the bus and instrument room (isolated), the middle layer is the circuit breaker room, and the lower layer is the cable room.
Because the circuit breaker is in the middle layer, it is called armoured removable central metal closed switchgear, referred to as the central cabinet.
High-voltage switchgear is used for power generation, transmission, distribution, energy conversion and consumption of the power system, and plays a role in on-off, control or protection. High-voltage switchgear is used as electrical products with voltage grade of 3.6KV ~ 550KV, as well as high voltage isolator and grounding switch, high voltage load switch, high voltage automatic overlap and segment.
High – voltage operating mechanism, high – voltage explosion-proof distribution device and high – voltage switchgear and other categories.
Post time: Apr-19-2021