General GCK Low voltage draw-out switchgear (hereinafter called switchgear), it is a new product developed by our company after digesting and absorbing the advanced technology of similar international products. It is suitable for three phase four wire power system and three phase five wire power system with AC frequency of 50Hz or 60Hz, rated voltage of 660V, rated current of 5000A and below. It is widely used for accepting and distributing electrical energy in power system, such as power plant, substation, mining factories, high-buildings, airport and wharf etc.
This product complies with the international standard IEC 61439-2 and the national standard GB/T 7251.12. It features high breaking capacity, good dynamic and thermal stability, a novel and rational structure, complete electrical schemes, series production, strong versatility, and a high protection rating. It is an ideal product for updating and replacing older systems.
Type designation
Service conditions
a. Ambient temperature: Max: +40℃, Min:-5℃, Daily average temperature not more than 35℃;
b. Altitude: Gradient of slope is not more than 5 degree when installing, altitude is not more than 2000m;
c. Relative humidity: Air is clean and the relative humidity is not more than 50% when the max temperature is +40℃. Higher relative humidity is allowed when in lower temperature (such as 90% humidity when the temperature is +20℃), but the effect of condensation should be considered due to the change of temperature;
d. No explosion risks medium, the medium with no corrosion gas and conductive dust. If you has special requirement or not consistent with the above normal service condition, please negotiate with us.
Technical parameter
S/N
Name
Unit
Parameter
1
Rated insulation voltage
V
AC690, AC1000
2
Rated working voltage
V
AC380, AC400, AC690
3
Rated current of horizontal busbar
A
≤5000
4
Rated current of vertical busbar
A
≤1600
5
Max current of feeder circuit
A
4000
6
Max current of drawer circuit
A
800
7
Max capacity of control motor
kW
320
8
Peak withstand current of horizontal busbar(0.1s)
kA
40, 105, 176, 220
9
Short time withstand current of horizontal busbar(1s)
kA
20, 50, 80, 100
10
Peak withstand current of vertical busbar(0.1s)
kA
40, 105, 143
11
Short time withstand current of vertical busbar(1s)
kA
20, 50, 65
12
Rated power frequency withstand voltage(1min)
V
1890
13
Secondary power frequency withstand voltage(1min)
V
1890
14
Protection level of enclosure
IP30, IP40, IP42
15
Dimension of enclosure(W x D x H)
mm
600x800/1000x2200
800x800/1000x2200
1000*800/1000x2200
Structure features
a. Compact structure, accommodate more functional units with less space.
b. Strong structural versatility and flexible assembly: The skeleton is assembled using C-shaped profiles with fixed numerical modules, meeting the requirements of various structural forms.
c. Standard module design: It can be assembled to any standard unit, such as protection, operation, switching, control, adjustment, measurement, indication and other units. According to user’s requirements, it can be combined to different frame structure and drawer unit.
d. Safe and reliable: All structural components in the cabinet undergo galvanized passivation treatment.Frame door plate and side plate should be electrostatic power coating which guarantee the firm mechanism strength and reliable insulation protection.
e.. Good technical performance: main parameters have reached the international advanced level.
f. Easy to disassembly: no need special and complex tools.
External structure
1. Ceiling 2. Front upper small door 3. Cable compartment door 4. Sealing plate