Influence of inductive voltage transformers on the measurement of switching transients

• DOI: 10.1109/upec.2012.6398425
• Publication Date: 2013-01-07T14:09:04Z
• Authors: F. Moore; A. Haddad; H. Griffiths; M. Osborne
• Keywords: Emtp; Transient voltage suppressor; Transient (computer programming); Leakage inductance

The inductive voltage transformers (VTs) used on the power system are primarily designed for protection or metering at 50Hz. leakage inductance of VT windings and stray capacitances can form a resonant circuit. When subjected to AC voltages frequencies well below resonance, be assumed behave linearly giving accurate measurements. resonance limits bandwidth over which it may provide This is particular importance when taking harmonic transient paper reviews different kinds model available. A selected simulation in EMTP, influence switching transients examined. key observation that step change voltage, ripple introduced VT's frequency its secondary winding. aim this work quantify VTs measured waveforms.