As a well-known power transmission and distribution factory in China, Kexun's GCS type Low Voltage Complete Set is suitable for power distribution systems in power plants, petroleum, chemical industry, metallurgy, textiles, high-rise buildings and other industries. As a low-voltage complete distribution device for power distribution, centralized motor control and reactive power compensation in power generation and supply systems with three-phase AC frequency of 50(60)Hz, rated working voltage of 380V(400V) and (660V) and rated current of 4000A or less.
Basic parameters
| Number |
Item |
|
Data |
| 1 |
Main circuit rated voltage(V) |
|
AC380(400)(660) |
| 2 |
Auxiliary circuit Rated voltage |
|
AC220,380(400) DC110,220 |
| 3 |
Rated frequency |
|
50(60) |
| 4 |
Rated insulate voltage(V) |
|
660(1000) |
| 5 |
Rated current |
Horizontal bus |
≤4000 |
| Vertical bus |
1000 |
| 6 |
Rated short-term withstand current of the bus(KA/1s) |
|
50,80 |
| 7 |
Rated peak withstand current of the bus(KA/0.1s) |
|
105,176 |
| 8 |
Working frequency test voltage(V/1min) |
Main circuit |
2500 |
| |
Auxiliary circuit |
1760 |
| 9 |
Bus
|
Three-phase four-wire system |
A.B.C.PEN |
| 10 |
Three-phase four-wire system |
A.B.C.P.EN |
| 11 |
IP degree |
|
IP30. IP40 |
Main structure
The main frame of GCS type Low Voltage Complete Set adopts 8MF type open section steel, and the two sides of the section steel have installation holes with the modulus of 20mm and 100mm and 9.2mm respectively, so the internal installation is flexible and convenient.
The main frame is designed in two assembly forms, namely, fully assembled structure and partially welded structure (side frame and cross beam) for users to choose.
Each functional room of the device is isolated from each other, and its compartments are divided into functional unit room, bus room and cable room. The functions of each chamber are relatively independent.
The horizontal main bus is arranged horizontally behind the cabinet, which is the basic measure to make the main circuit of the device have high short-circuit strength.
The design of the cable compartment makes it very convenient for cables to go up and down.
Size series of general cabinet of the device (see the table below):
| Height 2200 |
| Width |
400 |
600 |
800 |
100 |
| Depth |
800 |
1000 |
800 |
1000 |
600 |
800 |
1000 |
600 |
800 |
1000 |
| |
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Installation and use of GCS type Low Voltage Complete Set
After the products arrive at the receiving place, they should first check whether the packaging is intact. If problems are found, they should promptly notify the relevant departments of the contract to make business records, analyze the reasons together, make visas and deal with the aftermath. For products that are not installed immediately, they should be placed in an appropriate place and properly kept according to the normal use conditions and the requirements of temporary storage regulations for electrical equipment. 1. The product shall be installed according to the installation schematic diagram (see attached figure). The foundation channel steel and the bolts when the bolt fixing method is adopted shall be provided by the user. When the main bus is connected, if the surface is uneven due to transportation, storage and other reasons, it should be leveled before connection and fastening.
When the devices are installed separately or in columns, their verticality, unevenness of cabinet surface and deviation of gaps between cabinets shall meet the requirements in the table below.
| Number |
Item |
Allowable error |
| 1 |
Perpendicularity |
|
3.3 |
| 2 |
Levelness |
|
2 5 |
| 3 |
inequality |
|
1 5 |
| 4 |
Cabinet spacing |
|
2 |
Inspection and inspection after the GCS type Low Voltage Complete Set
installation and before putting into operation
- Check whether the top paint or other covering materials (such as plastic spraying) of the cabinet are damaged, and whether the cabinet is dry and clean.
- Whether the operating mechanism of electrical components is flexible, and there should be no jamming or excessive operating force.
- Whether the on-off of the main and auxiliary contacts of main electrical appliances is reliable and accurate.
- The drawer or drawout mechanism should be flexible and light, without jamming and collision.
- The center lines of the movable and static contacts of the drawer or drawout structure should be consistent, and the contacts should be in close contact. The insertion depth of main and auxiliary contacts should meet the requirements. Mechanical interlocking or electrical: the response action is correct, and the locking or release should be reliable.
- Drawers of the same size shall be interchangeable conveniently without jamming and collision.
- The grounding contact between the drawer and the cabinet should be in close contact. When the drawer is pushed in, the grounding contact of the drawer is contacted before the main contact, and when it is pulled out, the grounding contact is disconnected after the main contact.
- The calibration of the instrument, the transformation ratio and polarity of the transformer shall be correct.
- The fuse core specification should meet the requirements of engineering design.
- The rating and setting of protection shall be correct and reliable.
- Use a 1000V megohmmeter to measure the insulation resistance value not less than 1MΩ.
- The connection of each busbar shall be good, and the installation of insulation supports, installation parts and other accessories shall be firm and reliable.
Use precautions of the GCS type Low Voltage Complete Set
The device is a Low Voltage Complete Set which is not installed against the wall, operated from the front and maintained on both sides. Only qualified professionals can enter or open the maintenance channel and cabinet door for operation, inspection and maintenance.
air switch and molded case circuit breakers have been separated and closed for many times, especially after short circuit separation and closing, which will cause local contact burns and produce carbon substances, which will increase the contact resistance. Therefore, they should be maintained and overhauled in the instruction manual of the circuit breaker.
After installation and maintenance, the isolation between compartments and functional units must be strictly checked to ensure the good functional separation of the device and prevent the fault from expanding.
Product package
The manufacturer shall provide the following documents and accessories when supplying:
Device list
Product certificate
Instructions for use
Factory test report
Relevant electrical drawings
Cabinet door keys, operating handles and spare parts specified in the contract.
Installation instructions of main components
Ordering instructions
The order contract of GCS Type Low Voltage Complete Set contains the following contents:
The full model of the product includes the main circuit scheme number and the auxiliary circuit scheme number.
Main circuit system combination sequence diagram
Electrical schematic diagram of auxiliary circuit
List of components in the cabinet
Setting parameters such as voltage, current and time in the circuit.
Other special tables inconsistent with the normal use of the product.
Product Description
Company Profile
Packaging & Shipping
FAQ
Are you a trading company or a manufacturer?
We are a manufacturer, specializing in the sales of power transmission and transformation equipment of 35KV and below for decades./
How do you control the quality?
We have QC department to follow TQM to ensure quality. If necessary, I can take photos or video confirmation for you./
Can it be the client's own brand name?
Of course, we accept OEM service/
What is your main product?
European box Substation, American box Substation, high pressure ring network cabinet, cable branch box, high-voltage complete series, low-voltage complete series. VCB,disconnector etc.../
Why should I choose your company?
Cheap and beautiful goods, strong technical team, rich experience, short delivery period, perfect after-sales service and good reputation./
What are your payment terms?
We usually accept payment methods: T/T and L/C. /
What are your warranty terms?
12-24 Months/
Do you have in stock?
We have standard models in stock, and some special products and large orders will be produced according to the orders./
What certificate do you have?
We have ISO9001, ISO14001, ISO45001, Type Test, CQC certificates./
Can we visit your company?
Of course, you are always welcome to visit our company and make valuable suggestions!/
Will you will attend the fair to show your products?
Yes, we will attend various exhibitions at home and abroad./
What is your MOQ?
Our MOQ is 1 set./
Audited Supplier 
Basic parameters
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