XGN-12 12kv Fixed Enclosed HV Electrical Power Distribution Switchgear

XGN-12 12kv Fixed Enclosed HV Electrical Power Distribution Switchgear

This product has absorbed foreign advanced technology. It is small in size, only 50% of the volume of an ordinary switch; the cabinet is high in size and good in performance; the "five-proof" interlocking mechanism, simple and other advantages, the cabinet is 3.6, 7.12kV three-phase power 50Hz The single busbar conveys the complete set of indoor devices for receiving and distributing energy. It also has the functions of controlling, protecting and monitoring the circuit. It can be used in various types of power plants, substations and industrial and mining enterprises in high-rise buildings and other places. It can be combined with ring network cabinets and also open and close.

Structure Description

The switchgear is of box-type metal-enclosed fixed structure and the cubicle consists of profies

and G profiles assembled by several connection pieces .It is divide into four compartments ,namely busbar compartment .CB compartment ,metering compartment and cable compartment .The parts processing shall be made by CNC punching machine ,CNC bending machine and sophisticated machines provided in CNC processing center ,ensuring high precisopm of form ,position and dimension ,fast and accurate making ,fiexible for combination of different options ,which can meet different demands form customers .

 

Main features

1.The cubicle is of assembled structure ,no welding ,high mechanical strength and artistic apperance .
2.The rear upper part is for GN30-12 rotarydisconnect switch and lower part for GN19-12C disconnect switch .The mechanical interlock device operated as per procedures can provide reliable safety protection for the operation personal and equipment .
3.The main switch adopted is of monoblock type ,options such as ZN63-12(VS1-12)and VD4-12
4.Compulsory mechanical locking method is employed in the interlocks among main switches
,disconnectors and cubicle door to meet the ‘five -proof ‘interlock function,enjoying random combination with ring main unit .

 

Cabinet dimensions (Height *Width *Depth)
2300mm	900mm	900mm
	1000mm

 

Cabinet outline dimensions (mm)(not including door )

Height	Width		Depth
2300	900	1000	1000
2300	900	1000	1000

No.	Item	Unit	Technical data
1	Rated voltage	kV	3.6, 7.2, 12
2	Rated current	A	630 1000	1250 2000	2500 3150
3	Rated short circuit breaking current	kA	20	31.5	40
4	Rated short time withstand current	kA	20	31.5	40
5	Rated peak withstand current	kA	50	80	100
6	Rated short circuit making current	kA	50	80	100
7	Rated duration of short circuit	s		4
8	Degree of protection		IP2X
9	Bus system		Single bus, single bus with bypass, double bus
10	Operating method		Electromagnetism, spring storage energy
11	Outline dimension	mm	950^1000x2300 (below 1250A) 1000x1000x2300 (over 1250A)

 

Cabinet

The cabinet body of the switchgear is made of steel plate or aluminum-zinc plate and processed by CNC machine tools, which not only has high precision but also has strong anti-corrosion and oxidation resistance. The overall weight of the cabinet is lighter than other equipment cabinets, and the mechanical strength is high. The processing and production cycle is short. , The parts have strong versatility, and the area of ancient land is small, which is convenient for production organization.

Compartment

The main electrical components of the switchgear have independent compartments. According to different functions, they are divided into handcart room, busbar room, cable room, and relay instrument room by partitions. The rooms are separated by metal protective plates. The compartment shells are all independently grounded, and the protection level of each compartment reaches IP2X; except for the relay room, the other three compartments have their own pressure relief channels.

Interlocking device

The joint pins between the main switch, handcart, grounding switch and cabinet door all adopt compulsory mechanical locking methods to meet the "five prevention" function. The breaker handcart can only be closed when the circuit breaker is in the open/test position or working position; and after the circuit breaker is opened, the propulsion mechanism of the handcart cannot be operated and the handcart cannot be moved to prevent loading Push-pull circuit breaker handcart.

Link ground device

In the cable room, a separate 6x50mm2 grounding busbar is provided. This busbar can run through adjacent cabinets and make good contact with the cabinet to prevent electric shocks. Human body impedance and environmental conditions, ensure the normal operation of the power system, and prevent lightning strikes. The hazard of static electricity occurs when lightning occurs

Heater

In order to prevent the danger of condensation in a climate with high temperature or humidity changes. Install heaters in the circuit breaker room and the cable room respectively for use in the above-mentioned environment and to prevent corrosion. The high-voltage switchgear has a heating device for easy control of temperature and humidity. When the temperature of the switchgear is lower than the required value and the humidity is higher than the required value, the heating device is activated.

Compartment in the switch cabinet

1. Withdrawable handcart: The handcart frame is formed and assembled with high-quality cold-rolled steel plates. The handcart is equipped with a vacuum circuit breaker and other auxiliary equipment. The handcart frame is equipped with a screw nut propulsion mechanism and an ultra-high clutch.

2. Circuit breaker compartment: A special track is installed in the circuit breaker compartment for the handcart to move, so that the circuit breaker handcart can slide and be fixed in the compartment through a rotatable screw-nut mechanism.

3. Busbar compartment:The main bus bar is led from one switch cabinet to another switch cabinet and fixed by the branch bus bar and static contact section. When passing through the adjacent cabinet, the bus bar is fixed by the wall bushing, which can effectively prevent the accident from spreading, and at the same time assist the main bus bar. Supporting role.The busbar adopts shrinkage type casing or fluidized coating process, and the phases and connectors are equipped with insulating sleeves made of flame-retardant materials to form a reliable composite insulation.

4. Cable compartment: Current transformers, lightning arresters and grounding switches can be installed in the cable room. The ample space is convenient for the installation and connection of multiple cables.

5.Relay room:The internal and external panels of the relay can be equipped with secondary components such as control, protection components, metering, display instruments, and live monitoring displays.

Product Paramenters

Main technical parameters of switchgear
project	unit	Technical Parameters
Rated voltage	KV	3.6 7.2 12
Rated power frequency withstand voltage	KV	To the ground, alternately: 42 Fracture: 48
Rated lightning impulse withstand voltage	KV	To the ground, alternately: 75 Fracture: 85
Rated frequency	Hz	50
Rated current	A	630 1250
Rated short-circuit breaking current (effective value)	kA	20 25 31.5
Rated short-circuit making current (peak value)	kA	50 63 80
Rated dynamic steady current (peak value)	kA	50 63 80
Rated thermal stability current 4s (effective value)	kA	20 25 31.5
Protection level		IP2X
Dimensions (width * depth* height)	mm	900*1000*2300
weight	Kg	≈60

Main technical parameters of XGN66-12 vacuum circuit breaker
project	unit	Technical Parameters
Rated voltage	KV	12
Rated current	A	630 1250
Rated short-circuit breaking current	KV	20 25 31.5
Rated short-circuit making current	KV	50 63 80
Rated short-time withstand current (4s effective value)	KV	20 25 31.5
Rated peak withstand current (peak value)	KV	50 63 80
Mechanical life	Times	10000
Rated short-circuit open-end current times	Times	50
Rated operating sequence		Split-0.3-Closed-180s-Closed
Contact opening distance	mm	11±1
Contact line spacing	mm	4±0.5
Center distance between phases	mm	210
Opening speed	m/s	1.2±0.2
Closing speed	m/s	0.6±0.2
Opening time	ms	≤60
Closing time	ms	≤75
Three-phase opening synchronization	ms	≤2
Closing bounce	ms	≤2
Loop resistance	μΩ	≤45
Contact accumulative allowable wear thickness	mm	3

Scope of application

Widely used in high-rise buildings, commercial centers, subways, airports, stations, industrial and mining enterprises, drilling platforms, oil extraction platforms, residential areas, commercial streets and rural power and lighting.

 

 

 

 

 

 

Q5 : Is OEM/ODM available?

A: Yes, it is! Our products can be Customized. We have design and engineer teams,we can customize products according to customers' drawing or requirements.

Q6 : You are manufacturer or trading company?
A: We are factory, As a 100% professional manufacturer with 20 year's manufacturer experience, we could produce products according to customers' requirements and we could also control the quality of products 100%.

Q7 : Can the price be negotiated?

A: Yes, the price is negotiable. It can be changed according to your quantity or package

Q8 : How about inspection?

A: We have the whole inspection system from raw material to end products include temperature rise test,salt spraying test conductor type test,mechanical life test.

Q9 : What is payment terms?

A: T.T, Paypal,Western Union,Alibaba trade assurance and L/C is acceptable. 30% T/T in advance ,70% balance before shipment.

Q10 : What is the service offered by company?

A: We have the professional engineer team which can design and develop the mold to arrive different customer requirement.

We also have the sales team to offer good service from pre-sale to after-sale.

This product is usually customized.
We are a manufacturer and have a professional technical department that can design and provide solutions according to customer needs.
Please contact our sales personnel to obtain design drawings

Here are our customer examples for your reference

IF NEED MORE DETAILES,PLEASE FEEL FREE YO CONTACT US

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