Electrical Switchgear Equipment And Substation

Short Description:

XGN-12 series unit type AC metal closed ring network high voltage switchgear electrical cabinet is a fully insulated, fully sealed, and maintenance-free solid insulated vacuum switchgear. All high-voltage live parts are molded with epoxy resin material with excellent insulation performance, and the vacuum interrupter, main conductive circuit, insulating support, etc. are organically combined into a whole, and the functional units are connected by a fully insulated solid busbar. Therefore, the entire switchgear is not affected by the external environment, and the reliability of the operation of the device and the safety of the operator can be ensured. Because the product has the advantages of full insulation, full sealing, and full shielding, it is especially suitable for use in areas with high altitude, high temperature, mixed heat, severe cold, and severe pollution.

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Product Detail

Product Tags

Overview

KYN28-24(Z) series alemating-current metal-clad and metal-enclosed with drawable swichgear(hereinafter referred to as “switchgear”) is a complete set of power dstribution unit of three-phase single busbar and singlbusbar ebussection system of 20kV and AC50(60) Hz.This switchgear is mainly applicable to power plants,power transmitting of middle and small sized generators,distribution of industrial and mining enterprises,electricity receiving and tansmitting of secondary substations,as well as starting of large high-voltage motors,etc, realizes control protection and monitoring.It has”five preventions”,it prevents on-load pushing or pulling circuit breaker’s handcart,prevents making or breaking circuit breaker by mistake,prevents closing circuit breaker when the earthing swich is at closing position,prevents entering into live compartment by mistake,and prevents closing earthing switch under live condition.It can be eauipped with the NV1-24 type vacuum circuit breaker developed by our company,it really is an ideal distribution equipment with perfect performances.lt complies with the standards GB3906.GB/T11022 and IEC60298.

Model and meaning

Use environmental conditions

◇Ambient air temperature:-15℃～+40℃;

◇Altitude:≤1000m

◇Relative humidity:daily≤95%,monthly≤90%;

◇Secismic intensity≤Ms8;

◇The isallation site should be free of fire,explosive pollution,chemical corrosion or severe vibration;

◇Nole:Plcase negotiate with us if your product is used beyond the range of above condition.

The main technical parameters

Name	Unit	value
		Matched circuit breaker NV1-24
Rated voltage	kv	24
1 min power frequency withstand voltage	kv	(50)65
Rated impulse withstand voltage(peak)	kv	125
Rated frequency	Hz	50(60)
Rated current	A	630 1250 1600 2000 2500 3150
Rated current of branchbusbar	A	630 1250 1600 2000 2500
Rated shot-time withstand current	kA	16 20 25 31.5
Rated peak withstand current	kA	40 50 63 80
Rated short-circuit duration	s	4
Protection level		The enclosure is IP4X,it is IP2X when the compartment door and circuit breaker chamber door are opened
Mass	kg	800 1000(Rated current above 1600A)

Product structure performance characteristics

1.Switchgear of 24kVwith compact volume
Structure of this product is similar to that of mid-set swichgear of 12kV,the poduct is applicablel to systems of 20kV,not need composite isulation or interphase separator,with oustanding insulation performance.
2.Safe structure,fexible intallation
This switchgear is composed of cabinet body and mid-set withdrawable part(i.e.handcart)two parts.The cabinet body is divided into four separate compartments,degree of protection of the enclosure isP4X,and the protection degrce is IP2X when compartment doors and circuit breaker chamber door are opened.It has overhead incoming and outgoing lines,cable incoming und outgoing lines and other function schemes, it can become 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 fexibility,but also reduces the floor space.

1.Wall bushing 8.Primary cable

2.Analog primary diagram 9.Earthing busbar

3.Nameplate 10.secondary interlocking assembly

4.Illuminating lamp 11.Valve mechanism

5.Main busbar 12.Handeart of circuit breaker

6.contact box 13.Insular

7.Current transformer 14.Heater

15.Framework of cabinet body

Cabinet depth	D(mm)
Cable outgoing line	1820
Overhead incoming and outgoing lines\	2150

3.Lighting impulse resistant capacity

4.Various handearts,convenient operation

Framework of the handcart is made up of steels through machining of CNC machine tool.The handcart has good insulation coordination with the cabinet body,with safe,reliable and flexibly mechanical interlocking.It can be divided into circuit breaker handcart,voltage transformer handcart and isolaing handcart according to the purposes,handcarts of the same specification are exchangeable absolutely.

There are breaking position,test position and working position in the cabinet body for handcard,each position has positioning device respectively that gurantees reliable interlocking.must carry out operation according to the interlocking anti-misoperation process.All handcarts adopt lead screw to rotate to push in or withdraw,it is convenient and fexible to operate,suitable for all kinds of operators on duty.When it is requires to remove the handcart from the cabinet body,please use a special transfer car to take it out conveniently,then to carry out inspections and maintenance;it adopts mid-set type,has small volume,is convenient to check and maintain.