KYN28-24(Z)armored removable AC switchgear

Overview

KYN28-24(Z)series armored moveable AC metal switchgear (hereinafter referred to as “switchgear”)is a complete power distribution device for 20kV three-phase AC 50(60)Hz single bus and single bus section system.It is mainly used in power plants,power transmission of small and medium-sized generators,power distribution of industrial and mining enterprises, and power receiving and transmission of secondary substations in electrical systems, as well as starting of large high voltage motors,etc., to implement control protection and monitoring.

The switchgear has the “five prevention”interlock function of preventing from pushing and pulling circuit breaker with
load,preventing the circuit breaker from opening and closing by mistake,preventing the ground switch from closing when the ground switch is in the closed position,preventing from going into the live compartment mistakenly and preventing the ground switch from opening by mistake when the power is on.In fact,it is a power distribution device with superior performance.The product adopts GB3906,GB/T11022,IEC60298 and other standards.

Environmental  conditions

a Ambient air temperature:-15℃~+40℃;
b Altitude:≤1000m;
C Relative humidity;daily≤95%,monthly≤90%;
d Seismic intensity:≤8°;
e The installation site should be free of fire,explosive danger,serious pollution,chemical corrosion or severe vibration;
Note:Please negotiate with us if your product is used beyond the range of above conditions.

Product  structure  performance  characteristics

1.Switchgear of 24kV with compact volume
Structure of this product is similar to that of mid-set switchgear of 12kV,the product is applicable to systems of 20kV and doesn’t need composite insulation or interphase separator,bringing outstanding insulation performance.

2.Safe structure,flexible installation
This switchgear is composed of two parts:cabinet body and mid-set withdrawable part (ie.handcart).The cabinet body is divided into four separate compartments,protection degree of the enclosure is IP4X,and it is IP2X when compartment
doors and circuit breaker chamber door are opened.It has overhead incoming and outgoing line,cable incoming and outgoing lines and other function schemes,it can become a power distribution unit of different schemes and forms after
permutation and combination.This switchgear can be installed,debugged and maintained from the front side,so it can be arranged in duplex by means of back-to-back or arranged against the wall,which not only improves its safety and flexibility, but also reduces the floor space.

3.Lightning impulse resistant capacity

4.Various handcarts,convenient operation
The frame of the handcart is also made of thin steel plate and assembled after being processed by CNC machine.The handcart is insulated with the cabinet,and the mechanical interlock is safe,reliable and flexible.According to the same purpose,handcart can be divided into circuit breaker handcart,voltage transformer handcart,isolation handcart,the same specifications of the car can be replaced. The handcar has a disconnect position,a test position and a working position in the cabinet body,and each position has a positioning device to ensure the reliability of interlocking.It must be operated according to the interlocking anti-misoperation procedure.All kinds of handcarts can be drew in and out by screw.The operation is easy and flexible for operators.When the cabinet needs to be removed by hand,a special transfer handcart can be used to conveniently take it out for various inspection and maintenance;and it adopts mid-set type,the size is small,with convenient inspection and maintenance.

The main circuit scheme diagram