Detailed instructions for installing single-phase electrical cabinets

Detailed instructions for installing single-phase electrical cabinets

Single-phase electrical cabinets are used quite commonly, on the current market there are 2 main product lines: 1-phase electrical cabinets and 3-phase electrical cabinets. Both product lines are used in all electrical equipment such as: Electrical cabinets, switchgear, lighting equipment, low and high voltage equipment… After that, Quan Pham I will guide you in detail how to install a single phase electrical cabinet

Steps to install single phase electrical cabinet

Depending on your needs, we install electrical cabinets in many different ways, including the following steps:

1. Calculating specifications to choose suitable devices for capacitors

It is necessary to determine the number of loads, the number of branches to be distributed to calculate the value of aptomat, conductors… These values need to be balanced between technical and economic problems, not choosing equipment values. too high than necessary because it will affect the cost of the finished product.

2. How does a single-phase electrical cabinet work?

Single-phase electrical cabinets need to be designed to ensure all the necessary features, but also need to be optimized in design to reduce materials and product costs. When designing, it is necessary to pay attention to the expansion process, or the change of the equipment system in the future.

When the design needs to be focused and carefully checked, in order to avoid errors after completing the next stages, this can lead to having to redo the entire process from scratch.

Currently, there are many software to support drawing design of 1-phase electrical cabinets, but the most popular and complete is Cad Electric software.

3. Processing and installing the cabinet.

After calculating and selecting the necessary equipment for single-phase electrical cabinets, we need to select the enclosure to accommodate those devices. On the surface of the cabinet, we will machine holes to install devices such as indicator lights, clocks, buttons … The machining of these holes can be done by punching and punching by CNC machines (With high-quality electrical cabinets). accuracy, complexity and aesthetics) or can be drilled by hand.

When installing equipment on a single-phase electrical cabinet, the following principles should be followed:

Devices such as power indicator lights, current and voltage meters, and indicator meters are located at the top.

Control devices (push buttons, switches) are located below.

It is necessary to distribute buttons and switches to control 1 device on the same row (horizontal or vertical) to facilitate the operation.

Note: The single-phase electrical cabinet cover has positions that are drilled to the outside such as: ventilation fan position, wiring position in / out of the electrical cabinet, it is necessary to make a shielding net or insert specialized clay to avoid Rats and insects get in and damage the device.
4. Arrange the devices inside the cabinet.

The design and layout of equipment on the electrical cabinet reasonably and properly will make the electrical cabinet reduce the interference between devices, save electrical wires, increase aesthetics, increase the life of equipment and operation. more stable.. Arrange devices into groups as follows:

Groups of control devices often placed together, upper corner (protection relays, intermediate relays, controllers, sensors).

Group of switching power tools placed in the same row below (Aptomat, Contactor, magnetic starter.)

The total Aptomat (Power supply for the system) is placed in the center of the electrical cabinet (or placed in the upper left corner) so that it is convenient during operation and manipulation.

The terminal is located at the bottom to facilitate the wiring in / out of the electrical cabinet

5. Electrical wiring.

Conductors between electrical devices need to be connected in a scientific and neat manner.

The ends must be colored (red, yellow, blue, black …) and numbered sequentially for easy control and repair later.

Signal and power lines should be run in separate ducts, as far apart as possible.

With high sensitivity signal wire (encoder conductor, communication wire …) must have anti-interference shield.

It is recommended to wire the power circuit first and then the control part

The control wire and the power circuit wire must go perpendicular to each other

6. Power on, idling.

After completing the wiring, we need to carefully check the system before supplying power to the 1-phase switchboard. When supplying power, let the electrical cabinet work without load to detect errors before connecting the load to the electrical cabinet.

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The company Quan Pham Industrial Electrical Equipment is a company specialized in providing:

• Introduction Compensating capacitors and Welding cable, rubber cable SAMWON – made in Korea
• DUSONC control cable – made in Korea
• BEKONEC industrial socket – made in Italy
• Timer Shinsung – made in Korea
• Line accessories

Company Quan Pham  was born to bring to customers the best products at the most reasonable prices. With the operating motto: “Customer satisfaction is our success “.

We are committed to bringing the best   products to our customers, especially our   products are always high standard, environmentally friendly, always in line with the network’s operating conditions & nbsp; electricity Vietnam.