• MSB SwitchboardMSB (Main Distribution Switchboard) is a kind of electrical cabinet installed right after the low voltage substations (from 15kV down to 380VAC), the major function of MSB cabinets is connect & disconnect, safety protection for electrical systems. Rated current can reach approximately 6300A.
  • CABLE LADDERSTPower - Cable ladder is also known as electric ladder, applied to install electrical wires and cables in factories, apartments, buildings ... is the bearing structure of the system.
  •  Distributor of ABB electrical equipmentProduct new: STPower - Distributors and Agents for Electrical products ABB in the central of Vietnam
  • Low & Medium Voltage Cubiele SwitchboardCubiele Switchboards which are designed and manufactured in accordance with strict quality management, high stability and secure operation has been widely used in power stations, power distribution station in power companies, industrial parks, residential quarters and factories...
  • Breakers & SwitchesBreakers & Switches are designed for flexibility and reliable performance in a wide variety of applications: power distribution for residential and industrial buildings, HVAC, water pumping stations, data centers
  • Trunking SystemCable tray (trunking) is the conduit for the installation of wires and cables in factories, apartment buildings, office buildings
  • Low & Medium Voltage Cubiele SwitchboardCubiele Switchboards which are designed and manufactured in accordance with strict quality management, high stability and secure operation has been widely used in power stations, power distribution station in power companies, industrial parks, residential quarters and factories...

What is medium voltage electrical cabinet?

1. What is medium voltage electrical cabinet?
- Medium voltage electrical cabinet is designed and manufactured according to strict quality management process, has high stability, safety in operation and has been widely applied in power generation stations, power distribution stations of Power companies, industrial parks, residential areas and factories .... Currently, the medium voltage cabinet is an important electrical equipment for industrial, commercial and civil electrical construction.
- The structure of the cabinet ensures high safety: The cabinet is made of 2mm thick sheet of steel, firmly secured, and the switches such as the cutter are arranged properly and protected by an inner wing of the cabinet.

2. Structure of the medium voltage cabinet:
- Medium voltage electrical cabinet structure includes: Cabinet is made of about 2mm thick sheet, insulated, solid, and the switch is placed independently, reasonably and protected by an inner wing of cabinets.
- The cabinet includes equipment such as electrical panel up to 24KV and is used in the electricity industry, commercial buildings or in industrial plants.
- Classification of medium voltage cabinets
- Medium voltage electrical cabinets are classified as follows:

  • Medium voltage cabinets: VCB, LBS, DS
  • Medium voltage ATS cabinet
  • RMU cabinet
  • Medium voltage capacitor cabinet
  • Second cabinet

3. Characteristics of medium voltage cabinets:
Below are some characteristics of the medium voltage switchboard of ABB Group

  • Manufactured according to IEC 62271-105 and IEC 60470 standards and rated voltage up to 12kV, indoor type, with 3 poles
  • Used for medium voltage motors, transformers and capacitors
  • Safe and reliable with fully sealed contactor housing and 2.5 bar low SF6 gas pressure.
  • Divided into separate and dedicated compartments for improved safety and continuous operation
  • There are types of MV contactor: there are 2 types of designs including fixed and removable
  • Contactor uses SF6 together with arc stamping technique - eddy arc technique - arc stamping and quick dielectric recovery, limiting the wear of contacts.
  • Electrical durability is enhanced by SF6 gas technology which reduces arc duration time and reduces arc elongation
  • Low switching ambient voltage prevents motor winding insulation canceling
  • There are two types of contactors to choose from for each need, the intended use is the electric latch and the mechanical latch.
  • Can continuously monitor SF6 gas pressure (optional)
  • Durable to external impacts, it can be used in the harshest environmental conditions such as mining, oil and gas
  • Can be combined with fuses to enhance protection.

4. How is the medium voltage cabinet used?
Medium voltage cabinets are used to switch off and protect medium voltage power supply lines. Medium voltage switchboards are often installed in power plants, transmission and distribution stations of power companies, or power distribution stations in industrial parks, residential areas ....

5. The process of installing the general medium voltage cabinet:
- Understand the schematic diagram of the medium voltage RMU system to be installed
- Reading and understanding drawing of the second connection of necessary measuring and protection equipment.
- Read the manufacturer's Installation and Operation Manual.
- Prepare a full range of necessary accessories for the electrical cabinet such as: cable connectors, power cables, backup power, support devices, suitable portable mechanical tools.
- Install: follow the steps in the Instruction Manual for installation and operation. Use suitable hand mechanical tools.

6. Quotation of medium voltage electrical cabinets:
- STPower Joint Stock Company is proud to be the exclusive distributor of ABB equipment in the Central region, with the advantage of always being available at the warehouse, ensuring to meet all aspects of project progress. STPower is one of the leading manufacturers of high-voltage and medium-voltage electrical cabinets in Central Vietnam.
- STPower Joint Stock Company always ensures a strict production process according to international standards. In addition, we also own leading experts and a team of highly qualified staff is the basis for customers to trust and cooperate. Please contact us at the address below for a detailed consultation.

For more information about consulting and quotation, customers / partners please contact:

STPOWER JOINT STOCK COMPANY
Factory: 
Lot No.47, 2nd Street, Da Nang Industrial Zone, Da Nang City
Office: 02363.959.797 - Hotline: 0905.959.564
Email: info@stpower.com.vn
Website: http://stpower.com.vn/
With the motto: "Right quality - Sufficient quantity" STPower commits to produce products with quality above satisfaction.
Please contact 
STPower immediately to feel the most dedicated care.
Best regards!
STPower Joint Stock Company

Address: Lot No.47, 2nd Street, Da Nang Industrial Zone, Da Nang City, Viet Nam
Phone: 0905 959 564 - 0236 3959 797
Fax:
Email: info@stpower.com.vn

276C Lo Lu Street, Truong Thanh Ward, Thu Duc City, Ho Chi Minh City

76 Nguyen Thi Dinh, Phuoc Long Ward, Nha Trang City, Viet Nam

- 38 Tran Ke Xuong Street, Hai Chau Dist, Da Nang City, Viet Nam