Product Blog

Compare single-phase and three-phase transformers on windings, capacity, voltage stability, efficiency, and cost — then pick the right one for your load and supply.

A three-phase transformer can supply single-phase loads — but only with the right winding tap and the right derating. Here's the wiring, the math and the limits.

What is transformer no-load loss? A clear breakdown of hysteresis and eddy current loss, the calculation formulas, the open-circuit test method, and how a lower-loss core pays back over the service life.

Learn how to calculate transformer capacity in kVA for single-phase and three-phase systems, understand the kW-kVA power relationship, and size transformers with confidence.

Three-winding transformers feed two voltage systems or carry a stabilising tertiary from one core. Learn winding arrangement, the three short-circuit impedances, unequal MVA ratings and spec checks.

A practical guide to the main causes and hazards of transformer overheating — overload, poor cooling, harmonics, and internal faults — plus detection and prevention steps.

Step-by-step guide to calculating transformer overload with kVA formulas, load percentage checks, and 25% safety sizing rules. Includes examples, table, and FAQ.

Find oil under a transformer? Assess the leak rate, contain the spill, find the true source, and choose between an on-site repair and a specialist. Includes a severity table, temporary-vs-permanent fix table, and a 30-year preventive maintenance schedule.

Discover what a current transformer does in a substation, from current measurement and protection relay operation to metering and galvanic isolation.