33 kV On-Load Tap-Changing Power Transformer
Assess a 33 kV on-load tap-changing power transformer for network voltage regulation with a defined tap duty and control scheme.
ILLUSTRATIVE PRODUCT IMAGEOverview: A 33 kV on-load tap-changing power transformer is a project configuration for voltage regulation at a 33 kV interface. The transformer and tap changer need coordinated electrical, control and maintenance specifications.
Where this configuration is considered
Utility and industrial substations may use on-load regulation where network studies show a need to maintain voltage through changing supply or demand conditions.
Information to define before quotation
Provide MVA, voltage ratio, regulating side, tap range and step size, expected operations, impedance, fault duty, cooling, control interfaces and monitoring needs. Define tap-changer test and spare-parts expectations.
International standards to review
Reference standards may include IEC 60076-1:2011, IEC 60214-1:2014. The applicable editions, clauses, conformity evidence and test scope must be agreed for the final design and destination market. This page does not claim certification or guaranteed compliance for an unspecified product.
A useful question for the technical brief
What voltage band and tap operations per day does the network study predict?
Explore the Special Transformers family, compare all transformer products, or send an RFQ with your project drawings and ratings.
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Electrical ratings
Capacity, voltage ratio, frequency, impedance and the expected load profile.
Site conditions
Indoor or outdoor use, temperature, altitude, space, enclosure and cooling needs.
Project documents
Applicable standards, drawings, required tests, destination and delivery timing.
Tell us what your system needs.
Send a rating, single-line diagram or specification for review.