Medium Voltage

The medium voltage (MV) distribution system reduces the high-voltage electricity from power plants to lower voltage levels and delivers it to end consumers such as residential, industrial and commercial buildings.

Functions (OG):

  1. Energy Distribution: After leaving the generators, electrical energy is raised to a high voltage level and transported over long distances. In an area close to the consumer, this high voltage is stepped down to medium voltage level and then distributed to end users.

  2. Productivity: Medium voltage levels reduce losses when transporting energy over long distances. It is more cost-effective than high-voltage power transportation and safely supplies electricity to residential areas.

  3. Security and Protection: Medium voltage systems have protection systems against overcurrent, short circuit and other safety-critical faults.

Medium Voltage Components

  1. Transformers (Transformers): They are devices that reduce high voltage electrical energy to medium voltage level. Transformers ensure that electrical energy reaches the consumer safely and efficiently by minimizing energy losses.

  2. Medium Voltage Switchgear: It includes switchgear, breakers, disconnectors, load breakers, protection relays and measuring devices used for the distribution and control of electrical energy. Switchgear interrupts the flow of electricity in case of faults and protects the system.

  3. MV Distribution Panels: These are switchboards used to control and direct medium voltage electricity. These panels monitor the flow of energy, provide protection and cut off the electricity where necessary.

  4. Cables and Lines: Medium voltage cables and overhead lines are the structures that transmit energy from transformers to end users. They can be laid as underground or overhead lines.

  5. Breakers and Load Breakers: They are used to control and distribute the energy in medium voltage lines and to disable the system when necessary. They ensure the safety of the system, especially in fault conditions.

  6. Protection Relays: These are relays that prevent damage to the system by interrupting the circuit in cases such as short circuit, overcurrent and voltage drop in medium voltage systems.

 

Less Energy Loss

Compared to high-voltage power lines, energy losses are lower in medium voltage distribution.

Secure Distribution

Medium voltage is safer for power distribution in urban and industrial areas and easier to manage in areas close to the user.

High Efficiency

The reduction of electrical energy transported over long distances by high-voltage lines to medium voltage levels becomes more efficient during distribution.