Low Voltage Distribution Cabinet

1. Introduction to Low Voltage Distribution Cabinet

The low voltage distribution cabinet is a device used in conditions where the power grid is at a level of 0.4kV. Power on medium voltage and high voltage lines, if intended for use, must pass through low voltage substations to be transformed into standard power sources.

The low voltage cabinet is placed immediately after the low voltage substations and is used to balance, regulate the medium voltage and high voltage power sources from the transformer substations into standard 1-phase 220V or 3-phase 380V power sources. Currently, all types of electrical cabinets installed in industrial or civil applications after substations are referred to as low voltage cabinets.

The low voltage distribution cabinet plays an extremely important role in regulating and ensuring the safety of the electrical system. It helps protect vulnerable electrical devices such as switches, fuse boards, relays, etc., from mechanical impacts and external environmental influences. As a result, the transmission of electric current can be stable and safe. In general, installing a low voltage distribution cabinet is considered the optimal solution to protect human life and minimize the risk of tragic accidents caused by electrical incidents, whether direct or indirect.

2. Functions of the Low Voltage Cabinet

Depending on the specific use, the low voltage distribution cabinet may vary to suit. During design and installation, it must be ensured to meet the requirements of electrical usage at its operating location.

Typically, the low voltage distribution cabinet serves two main functions. These are:

2.1 Protection of Important Electrical Equipment:

Relays, switches, indicating measuring devices, fuse boards, etc., are protected against mechanical impacts, vibrations, and external environmental influences that may threaten the integrity of their operations.

Low Voltage Distribution Cabinet

2.2 Ensuring Safety:

Ensuring human life safety, avoiding direct or indirect electric shock incidents.

These are the most important functions of various types of low voltage cabinets. This also explains why the installation of this equipment has become such a critical requirement.

3. Types of Low Voltage Distribution Cabinets:

Low voltage distribution cabinets are designed as flexible modular units, meeting the precise technical specifications required by customers. The cabinets can have an L-shaped or U-shaped configuration to fit limited spaces.

Assembled from standard components, this versatile system can be modified during manufacturing or even on-site to accommodate design changes as per customer requirements. The modular system also allows for the connection of two or more components to form a large cabinet system that is easy to expand.

Technical Specifications of the Low Voltage Distribution Cabinet: Standard: IEC 60439-1 Insulation voltage: 1000AC Operating voltage: 690Vac Impulse voltage: 12kV Frequency: 50Hz Rated current: up to 6300A Short-circuit current: 100kA/1s Protection level: IP4X, IP5X Material: 1.5 – 2.5mm steel sheet Protective surface: Electrostatic painting Standard color: RAL Standard dimensions: H2200 x W1000 x D1000

4. Testing of Low Voltage Distribution Cabinet

Testing of Vintec low voltage distribution cabinets in the manufacturing process is one of the mandatory steps and is complied with strict requirements in the current electricity testing regulations. This is also a standard process that Vintec Group implements for all products before they are delivered to customers.

The low voltage distribution cabinet is an essential part of the power substation, so it must be thoroughly and rigorously tested before operation. This is an important step that cannot be overlooked because if the equipment fails or is damaged, the entire electrical system will be severely affected.

Vintec Group has invested in a transformer laboratory with a modern synchronized equipment system from HAEFELY, Switzerland, to ensure absolute testing accuracy.

6. Transportation of Low Voltage Distribution Cabinet

The cabinet must be kept upright during transportation and should not be tilted. It should be securely fastened to prevent movement during transportation.

When transported by Vintec’s transportation vehicles, the speed does not exceed 30km/h.

7. Where to Buy Low Voltage Distribution Cabinets?

Vintec Group is a reputable manufacturer of transformers, substations, and electrical cabinets, providing high-quality, durable, and aesthetically pleasing products. It is a reliable place for customers to purchase transformers.

Links to some similar products from Vintec: