GCS Indoor Low Voltage Withdrawable Switchgear

Short Description:

  • The device is applicable to the distribution system of power station, petroleum, chemical engineering, metallurgy, weaving and tall building industries etc.
  • It is the low voltage complete distribution device used in the generating and power supply system with three-phase AC50(60)Hz, rated working voltage 380V(400V), rated current 4000A and below for distribution, motor central control and reactive power compensation.
  • The device accords with standards IEC439-1 and GB7251.1.

Product Detail

Product Tags

GCS CODE

Technical specification of GCS switchgear

Item

Unit

Data

Rated voltage

V

400 / 690

Rated insulation voltage

V

690/1000

Rated frequency

Hz

50 / 60

Rated main bus bar max. current

A

4000

Rated short time withstand current of main bus bar (1s)

kA

50/80

Rated short time peak withstand current of main bus bar

kA

105/176

Rated distribution bus bar current

A

1000

Degree of protection

IP30,IP40

Service conditions of GCS Indoor Low Voltage Switchgear

Normal service conditions of Switchgear as follows:
Ambient temperature:
Maximum +40°C
Maximum 24 hour average +35°C
Minimum (according to minus 15 indoor classes) -5°C
Ambient humidity:
Daily average relative humidity less than 95%
Monthly average relative humidity less than 90%
Height above sea level at site less than 1000m
Earthquake intensity less than 8 degree
Height above sea level less than 2000m

This product should not be used under conditions of fire, explosion, earthquake and chemical corrosion environments.

Special service conditions

Each special service condition should be proposed in advance and confirmed by the manufacturer and user.

The dielectric strength of the air will be reduced in when altitude is over 1000m at site.

If the ambient temperature is over the maximum degree, the capacity of the using current must be lower than the designed currents for both main bus-bar and branching bus bar. The installation of area is propitious to reduce heat.                               

Structural drawing of GCS switchgear

GCS 结构

Outline dimension of GCS switchgear

jjj

Dimension of power center (PC) cubicle

Heigh H(mm)

Width B(mm)

Depth(mm)

Remarks

T

T1

T2

2200

400

1000

800

200

The current through the main bus-bars

2200

400

1000

800

200

630A, 1250A

2200

600

1000

800

200

2000A, 2500A

2200

800

1000

800

200

2500A, 3200A

2200

1000

1000

800

200

3200A, 4000A

2200

1200

1000

800

200

4000A

Dimension of motor control center (MCC) cubicle

Heigh H(mm) Width(mm) Depth(mm) Remarks
B B1 B2 T T1 T2
2200 1000 600 400 1000/800/600 400 600/400/200 Front operating
2200 800 600 200 1000/800/600 400 600/400/200
2200 600 600 0 1000/800 400 600/400

Remakes: Dimensions of  actual structural is usually according to different customer requirements

Production features

1. Main framework adopts 8MF bar steel. Both sides of bar steel is installed with 9.2mm mounting hole with modulus 20mm and 100mm. Inner installation is flexible and easy.

2. Two types of assembly form design for main framework, full assembly structure and partial (side frame and cross rail) welding structure for user selection.

3. Each function compartment of device is separated mutually. The compartments are divided into function unit compartment, bus bar compartment and cable

compartment. Each one has relative independent function.

4.Horizontal bus bar adopts cabinet back level placed array pattern for enhancing the capacity of resisting electrodynamic force for bus bar.

5. Cable compartment design makes cable outlet and inlet up and down convenient.

Functional unit

1. The module height of the drawer is 160MM, divided into 1/2 unit,1 unit, 3/2 unit 2 unit,3 unit five size series, single unit circuit rated current up to 400A

2. Drawer changes the change on height dimension only, its width, depth dimension is changeless, the drawer of same functional unit has good interchangeability

3. Each MCC cabinet can be installed with up to 11 one-unit drawers or 22 1/2 unit drawers, among which more than one unit of drawers adopts multifunctional back board

4. According to the current size of the  incoming and outgoing lines of the drawer, the unified specification chip structure plug-in is adopted without the number of pieces

5. The drawer unit is equipped with mechanical interlocking device


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