Turnkey Station With MV Transformer Integrated (Central PCS, 1500V)

Features

• PCS Max. efficiency up to 99%.

• Full reactive power four-quadrant capability.

• IP65 protection for PCS, IP54 for MV station.

• Black start ability.

• Support VSG function.

• Millisecond-level Power response to EMS/SCADA.

• Two DC branch inputs.

• Designed for frozen scenario with -40℃ option.

DC Parameters:

AC parameters (On-Grid):

AC parameters (Off-Grid):

General data:

Transformer:

The working principle of a turnkey station with an integrated MV transformer?

High-Voltage Incoming Line

• Receiving Electrical Energy: High-voltage transmission lines deliver electrical energy to the high-voltage side of the turnkey station.

• Protection and Control: High-voltage circuit breakers and disconnect switches are used to control the on-off of electrical energy, and lightning arresters are used to protect the equipment from lightning strikes and overvoltages.

Medium-Voltage Transformer

• Voltage Conversion: The medium-voltage transformer converts high-voltage electrical energy (such as 110 kV, 35 kV) into medium-voltage electrical energy (such as 10 kV, 20 kV).

• Cooling System: The transformer generates heat during operation, and the cooling system (such as oil cooling, air cooling) ensures that the transformer operates within a safe temperature range.

• Protection Devices: The transformer is equipped with various protection devices, such as overload protection, short-circuit protection, temperature protection, etc., to ensure the safe operation of the transformer.

Medium-Voltage Outgoing Line

• Electrical Energy Distribution: Medium-voltage electrical energy is distributed to end users or the next-level distribution system through medium-voltage circuit breakers and disconnect switches.

• Protection and Control: Medium-voltage circuit breakers are used to control the on-off of electrical energy, and disconnect switches are used for safe isolation during maintenance.

Control and Protection System

• Monitoring: Relay protection devices and SCADA systems monitor the running state of the system in real time, including parameters such as voltage, current, and temperature.

• Protection: Relay protection devices quickly cut off the power supply when detecting abnormal situations (such as short-circuit, overload, overvoltage), protecting the safety of equipment and personnel.

• Automation Control: PLC controllers achieve automation control, automatically adjusting the running state of the system according to preset logic and parameters.

Auxiliary Systems

• Cooling System: Ensure the normal operation of transformers and other equipment in a high-temperature environment.

• Ventilation System: Provide a good ventilation environment to prevent equipment from overheating.

• Lighting System: Provide sufficient lighting to facilitate operation and maintenance.

• Security System: Include video surveillance, intrusion alarm, etc., to ensure the safety of the station.