THREE PHASE OIL-IMMERSED DISTRIBUTION TRANSFORMER WITH OLTC

DESCRIPTION OF OLTC POWER TRANSFORMER

OLTC Power Transformer is a specially designed transformer that it is equipped with an on load tap changer

The on load tap changer allows operation under transformer excitation or load conditions to change the tap connection position of the transformer winding, thereby changing the number of turns of the winding, i.e. the voltage ratio of the transformer, and achieving the purpose of voltage regulation.

During the switching process, as tap replacement occurs during the load period, it is necessary to ensure that the current flowing to the load is not interrupted while avoiding short circuits when switching from one tap to another. To achieve this, the on load tap changer introduces a transition circuit (usually a resistor) to limit the circulating current that may occur during the switching process, ensuring that it remains within the allowable range.

OLTC Power Transformers are mainly used in power transmission and transformation to achieve voltage and voltage regulation by adjusting voltage and current. Its flexibility and reliability make it play an important role in the power system.

STRUCTURE FEATURES AND LAYOUT DRAWINGS

MANUFACTURER OF OLTC POWER TRANSFORMER

Pearl Electric, established in 1958, is a leader in the power transmission and distribution industry. Pearl Electric built in Guangzhou, China, own 620 staff and occupied an area of 100,000 square meters for transformer production.

Pearl Electric design and manufacturer oil-immersed distribution transformer, oil-filled power transformer, cast resin dry type transformer, three phase pad-mounted transformer and compact substation for new energy like wind power and solar power.

To guarantee the product quality, Pearl Electric has established an excellent quality management system and acknowledged by ISO9001:2015 Quality Management System, ISO14001:2015 Environmental Management System, ISO45001:2018 Occupational Health and Safety Management System. All products developed and supplied by Pearl Electric have obtained the type and special test reports from internationally-recognized independent test lab, including: C2/E2/F1 test report Aseismic report, Aging test report, KEMA test report, CTQC test report, CE certificates, UL certificates.