Oil-immersed on-load tap-changer
1.Company introduction
Liaoning Jinli Electric Power Electrical Appliance Co., Ltd was established in 2001 with a registered capital of 5 million yuan. It is a national high-tech enterprise specializing in the research and development, production, and sales of various types of transformers Tap Changers in China. It is also a national intellectual property advantage enterprise and has a provincial-level enterprise technology center.
The products are mainly sold in more than 20 countries and regions such as South Korea, Russia, Switzerland, Australia, Thailand, India, Peru, etc.
The main export products are No-excitation linear tap changers, Disc type tap changers, and Plate type tap changers, as well as 10~35KV On load tap changer.
2.Product introduction
Applicable to oil-immersed Power Transformers with a rated frequency of 50Hz, a rated voltage below 35kV, and a rated current of 400A and below.
3. Product pictures
4.Product feature and application
Oil-immersed On-Load Tap-Changers (OLTCs), as essential ancillary equipment for power transformers, are primarily used in power systems that require voltage regulation without interrupting the power supply. Their core applications are mainly reflected in the following key areas:
1. Public Power Grids and Power Transmission & Distribution Networks
In public power grids, OLTCs are core equipment for ensuring grid voltage stability and power quality. They can rapidly respond to voltage fluctuations and automatically adjust the output voltage to prevent damage to electrical equipment caused by excessively high or low voltages, thereby ensuring that end-users receive a stable and reliable power supply. Furthermore, in regional distribution substations (such as those in towns and industrial parks), they connect the upper-level grid to the user end, ensuring stable power for residents and businesses through on-load voltage regulation.
2. Industrial Power Distribution and Heavy Industry
In medium-sized factories, manufacturing parks, and main power distribution scenarios for large-scale machinery, power loads often experience significant fluctuations. Oil-immersed OLTCs can precisely adjust the voltage while under load, accommodating these load variations and preventing equipment failures caused by unstable voltages, thus guaranteeing the stable operation of large-scale industrial processes.
3. Renewable Energy Generation Integration
In the step-up or step-down processes of renewable energy projects such as distributed photovoltaics and wind power, oil-immersed OLTCs play a crucial role. Their stable voltage regulation capabilities ensure the safety of green power grid integration and improve the utilization efficiency of renewable energy.
4. High-Voltage and High-Capacity Power Infrastructure
The superiority of the oil-immersed design lies in its excellent heat dissipation and insulation protection, making it highly suitable for high-capacity applications. It is widely used in large-scale power infrastructure, including power plants, extra-high-voltage (e.g., 110kV, 220kV, and above) substations, hydropower stations, thermal power plants, and high-voltage direct-current (HVDC) converter stations.