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Brand Name:ECAN/OEM
Model Number: GCS series Low-voltage withdrawable switchgear
Certificate:ISO9001 /CQC/CCC
Standard:IEC
Type:Draw out type
Application:Power Distribution and Control
Frequency:50/60Hz
Color:as required
Usage:Power Distribution,distribution panel
China GCK Low-voltage withdrawable switchgear Cabinet
Product overview
China GCK low-voltage withdrawable switchgear is composed of power distribution center cabinet (PC) and motor control center (MCC) two parts, it is applicable for distribution system of AC 50Hz, max working voltage up to 660V and max working current up to 3150A in power plants, transformer substations, industrial and mining enterprises, etc., used for electric energy conversion, distribution and control of power distribution equipment, motor control equipment and lighting equipment and so on.
This series of products is featured with high breaking capacity, good dynamic and thermal stability, advanced and reasonable structure, practicable electric scheme, perfect serial property and versatility, random combination of all kinds of scheme unit, many circuits contained in one cabinet, less floor area, nice appearance, high protection level, safety and reliability, convenient maintenance, etc.
It is in line with the standards IEC439, GB7251.1-1997 Low-voltage switchgear and controlgear assemblies.
Structure
Basic framework of this series product is a combined assembly, the framing members are connected with each other by screws to form the basic framework, then the door, baffle, separator, drawer, installation rack, bus and electric components, constitute a complete set of switchgear cabinet, and this switchgear cabinet has following features.
● The framework adopts special-shaped steel, makes use of 3D plate for positioning, bolted connection without welding, preventing welding deformation or stress, improves the mounting accuracy;
● Mounting hole of framework and components varies according to the modulus E=25mm;
● The internal structure is zinc plated, the exterior accepts acid cleaning and phosphating treatment, adopts electrostatic epoxy powder coating.
● In the inlet cabinet of power center (PC), the top is the horizontal bus area, with circuit breaker chamber under it, the circuit breaker can use the homemade DW15C, ME and other series, also can be equipped with imported products according to users’ requirements, such as F series circuit breaker produced by ABB Corporation, and intelligent circuit breakers, etc; obliquity to vertical plane not exceeds 5°;
● Transportation and storage temperature: -25℃~+55℃, not exceed +70℃ in a short time (not exceed 24h).
Operating environment:
1)Ambient temperature:-10°C-+40°C;
2)Altitude: high voltage ≤1000Meter, low voltage ≤2000Meter (technical department will design specially if exceeds);
3)Relative humidity:≤85%
4)Seismic intensity:≤ magnitude 8;
5)Apply to the places have no fire,no explosion danger, no serious pollution,no chemical corrosion and no violent vibration.
Executive standard:
GB7251 Low voltage complete set switchgear and control device
Technical parameter:
0.4KV low voltage switchgear technical parameter：
Technical parameters
Jiangxi Yikai Electric Technical parameters of GCK Low-voltage withdrawable switchgear
| Rated working frequency | Hz | 50 | |
| Rated working voltage | V | 380、660 | |
| Rated insulation voltage | V | 660 | |
| Rated working current | Horizontal bus Vertical bus |
A A |
630～3150 600 |
| Rated short-time withstand current | Horizontal bus Vertical bus |
A
A |
80KA(effective value)/1s 50KA(effective value)/1s |
| Rated peak withstand current | Horizontal bus Vertical bus |
A A |
176KA 110 |
| Connector of main circuit | A | 200、400 | |
| Connector of auxiliary circuit | A | 10 | |
| Power frequency withstand voltage for 1min | V | 2500 | |
| Max capacity of control motor | KW | 155 | |
| Protection class | IP40 | ||
| Operating mode | Local, remote, automatic | ||
Schematic & Dimensions
Installation dimension and mounting hole
| Width (A) | Depth (B) | Dim. of mounting hole (a) | Dim. of mounting hole (b) |
| 800 | 600 | 685 | 485 |
| 600 | 800 | 485 | 685 |
| 600 | 1000 | 485 | 885 |
| 800 | 800 | 685 | 685 |
| 800 | 1000 | 685 | 885 |
| 1000 | 800 | 885 | 685 |
| 1000 | 1000 | 885 | 885 |
For Know more about us,Welcome visit : www.en.jxyikai.com
| Ordering instruction | |
| Please provide those below detailed information, when you order the switchgear. | |
| 001 | Main connection wire solution serial number and single line system diagram, arrangement and plane layout drawing |
| 002 | Main connection line solution serial number, purpose and single line system diagram, rated voltage, rated current,
rated short circuit breaking current,distribution electricity chamber plane layout diagram, arrangement diagram of switchgear and so on. |
| 003 | Secondary connection wire diagram, terminals arrangement diagram. If you can’t provide
terminals arrangement diagram,we will provide the terminals arrangement according to manufacturer’s diagram. |
| 004 | Requirement of switchgear control,measurement and protection function and requirement of other
shutting and automatic device. |
| 005 | Model, specificaton, quantity of switchgear equipment’s electrical apparatus elements |
| 006 | Electrical equipments summary sheet |
| 007 | If the interspace of switchgears or incoming line cabinet need bus line bridge to connect, please provide rated
load current of bus line bridge. |
| 008 | If you need busbar (busbar between two array cabinets and busbar between wall cabinets), please provide
detailed span and high altitude distance. |
| 009 | If the switch equipment are used in the special environment conditions, please put forward it when you
order the switchgear. |
| 010 | When you need other apparatus or exceed attachment supplied equipment list, please put forward model
and quantity you need. |
| 011 | Other special requirements. |
FAQ:
| 001 | Q | What is electrical switchgear |
| A | Electrical switchgear is a key component in electrical power systems and is used to both distribute electrical
power and to selectively isolate electrical loads. breakers, protective and controlling devices which can be used to isolate electrical apparatus in faulty condition or during maintenance period, or to connect the same in desired healthy conditions. |
|
| 002 | Q | Do we need to monitor the switchgear conditions |
| A | Yes, Because switchgear distributes electrical current, heat build-up becomes an important characteristic
to monitor. In particular, unexpected temperature rise at a particular location could indicate corrosion or some other type of defect. Thermal effects are especially visible in medium voltage switch gears used in distribution networks, where electrical currents may rise to few thousands of amperes. Thus keeping switchgears in proper condition over their long life becomes a critical issue. |
|
| 003 | Q | What are the main causes of arc flashes in industrial switchgear? |
| A | The main causes of arc flashes in industrial switchgear are: the application of tools to energize switchgear,
deteriorated insulation on phase bus bars, and loose electrical connections that overheat. These things can be prevented by proper safety measures and regular maintenance. |
|
| 004 | Q | What is the lowest voltage at which arc flashes occur? |
| A | 120 volts is generally considered the lowest voltage at which arc flashes occur. The voltage of industrial
switchgear can exceed this voltage by hundreds of thousands of times. |
|
| 005 | Q | What is Metal Enclosed Switchgear? |
| A | Metal Enclosed Switchgear is a switchgear assembly that encloses all necessary equipment and device in
separate metal vertical structure (i.e MCCs, PCC), however they each metal compartment are not separated from one another by metal barriers. It’s used often with low voltage equipment. |
|
| 006 | Q | What is Metal Clad switchgear? |
| A | Metal Clad Switchgear is a switchgear assembly that encloses all necessary equipment and devices in one
metal house, but compartments in this assembly is separated fromone another by metal barrier. When metal clad switchgear is used or assumed when MV switchgear is provided. |
|
| 007 | Q | Difference between Metal Enclosed Switchgear and metal Clad Switchgear. |
| A | Metal enclosed switchgear: Assembled with separate metal vertical section Metal Clad Switchgear: Assembled in one metal structure. MES: each compartment is not separated from one another with metal barrier. MCS: each compartment is separated from one another with metal barrier. MES: Frequently used in LV system. MCS: Frequently used in MV System. When MCS is said MV Switchgear is assumed. MES: All breakers and other switching devices are fixed type. MCS: All breakers are withdrawable type. |
|
| 008 | Q | How’s your electrical switchgear waranty? |
| A | Once you buy the product manufactured by Jiangxi Yikai Electric in China can get 24 months waranty after delivery date. |
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