Instructions for installation of industrial electrical cabinet connection

Currently, there is a lot of need to learn how to install and connect industrial electrical cabinets. If you search on google keywords, then we can get nearly 2 million searches. This demonstrates the importance of today's industrial electrical cabinets. So how can we understand, install and connect industrial electrical cabinets correctly? We will help you solve that problem through the article below.

1. Check carefully the design drawings and select the appropriate equipment

This is a very important stage in installing and connecting industrial electrical cabinets. Because if we choose the wrong device that is not true for the drawing, our product will not be valid. Customers will not accept delivery of the product, which means that we will not be able to recover the money. Therefore, before installing and connecting electrical cabinets we need to study carefully the design drawings. Research the electrical circuit carefully to see if there is any nonstandard place to respond to customers. Provide the final solution before installation.
As follows:

If you are installing a distribution cabinet of total MSB. You need to determine the number of loads, the number of branches to distribute. To calculate the value of switchgear, protective equipment and electrical wires. We need a reasonable balance between quality and cost problems. For projects of installing industrial electrical cabinets for high-class areas. The building needs high stability and accuracy. We should use equipment of big brands of the world such as Siemens, ABB, Schnaidei, Mitsubishi ... By quality and brand name have been confirmed in Vietnam.

For projects with average investment, the investment level is not high. We can choose to use Korean LS or Chinese Chint equipment. With good quality and very competitive price. Will definitely meet the "Delicious - Cheap - Cheap" criteria.

2. Up layout layout device layout on electrical cabinet

The design stage plays a very important role in the process of manufacturing and installing industrial electrical cabinets. When designing, we need to study the circuit diagram carefully. List the full details of the equipment in the principle diagram. From there, gather and get layout drawings. On the cabinet layout drawing, we generally provide images of electrical cabinets. Including arrangement of equipment, wiring systems, principles ... This helps a lot to read and understand drawings, visualize devices in electrical cabinets. It is also one of the factors affecting the investor's decision to sign a construction contract or not?

Layout drawing of equipment on the electrical cabinet is also a commitment between the two parties. When handing over industrial electrical cabinets, the consignee will rely on this drawing to check the cabinet size. Device positions on the cabinet surface, the distance between the details on the drawing compared to the actual standard.

In case the two parties have errors and do not follow what is written in the layout drawing. That party will be responsible. The part generated by the error must be re-added to the party not following the layout drawing. Usually industrial electrical cabinet layout drawings are drawn on 2D Autocad software. Except for customers who order products that we need to draw details in the cabinet will be built on 3D drawings.

3. Processing and installing industrial electrical cabinet shells

After sending customers drawings for approval of industrial electrical cabinets. We will go to the detailed design of electrical cabinet to switch to the processing factory. Our company has the processing line of modern industrial electrical cabinet. With imported C.N.C machinery system of Germany and Japan. Ensure high accuracy and help products with very good quality. The processing of cabinet parts is programmed on the computer and pushed onto the C.N.C. puncher. Equipment holes such as clock faces, alarms, switches ... were punched by C.N.C accurately. Ensure the positions according to the approved layout drawings.

Completing the surface coating of industrial electrical cabinet will finish the processing of cabinet. This stage is an important step that directly affects the aesthetics of the entire product. If the paint is poor, the surface is peeling or rough, it will not guarantee. Therefore, our company invested in fully automatic electrostatic painting system. From surface treatment to spraying and annealing, camera systems are closely monitored. Avoid shortages and errors that affect product quality.

4. Installation of equipment for industrial electrical cabinets

When installing equipment on industrial electrical enclosure, it is necessary to follow the following principles:

    Devices such as phase indicators, current meters, indicator clocks, switches are placed in the upper position. Help the operator easily observe the measuring indicators on the device.
    Control devices (Pushbuttons, switches) placed underneath help manipulate during the easiest operation
    Need to distribute buttons, switches and control 1 device on the same row (horizontal or vertical). Convenient for operation. The position of the center of the cabinet is the middle point and gradually grows to the sides. Make the cabinet have balance and symmetry between devices. Help users not to tangle and make cabinets more aesthetic.
    Arrange and arrange devices inside the electrical cabinet such as: Bridge, relay, timer ... inside the electrical cabinet in a scientific way. Reasonable and easy to connect, replace or repair.
    The design of equipment layout on the electrical cabinet is reasonable and correct. Will make the cabinet reduce the influence of interference between devices, save electrical wires, increase aesthetics. Increase equipment life and operate more stably.

Sorting equipment is divided into groups as follows:

        Group of control devices often put together one side to avoid signal interference when putting together the driving group. Example (Protection relays, intermediate relays, controllers, sensors).
        The group of switching power tools is placed in the same row below (Aptomat, Contactor, starting from.)
        Total Aptomat (Power supply for the system) is located in the center of the electrical cabinet (or placed in the upper left corner) so that it is convenient for operation and operation.
        The player is placed at the bottom to facilitate the wiring of in / out electrical cabinets

Additional note: Because industrial electrical cabinets often have connections between internal and external devices. Such as a ventilating fan hole or a power cable hole. Therefore, when designing, it is necessary to make shields or net against insects. Safety protection for internal equipment.

5. Connect industrial electrical cabinet

    Wiring between devices should be connected correctly and scientifically.
    There is a clear distinction between the color of the phases, the detailed number of player records to make the repair and maintenance easy later.
    The control circuit and the dynamic circuit need to travel far away from the signal interference to the sensors or sensors.
    For signal connection wires, it is necessary to buy a type with good anti-interference cover.
    Should connect sequentially from the power circuit after the control circuit.

6. Run electric test before handing over

After connecting, complete the installation of industrial electrical cabinets. We test the cabinet by clock before charging. This needs to follow the steps and ask experienced testers. If you do not work carefully, the consequences are very heavy, directly affecting the progress, quality and reputation of the company.

After the test has been finished, we can power the cabinet and test the equipment in the cabinet. From phase indicators, indicator gauges, switches to switchgear. See if all works well to prevent devices from working due to the manufacturer's fault. From there we have the plan to innovate and replace before delivery to customers. Be proactive in the progress and commitment.