V Relay maximum torque. The maximum torque angle (MTA) is defined as the angle by which the current applied to the relay must be displaced from the voltage applied to the relay to produce maximum torque. Although the relay element may be inherently wattmetric, its characteristic can be varied by the addition of phase shifting components to give maximum torque at the required phase angle. A number of different connections have been used and these are discussed below. Examination of the suitability of each arrangement involves determining the limiting conditions of the voltage and current applied to each phase element of the relay, for all fault conditions, taking into account the possible range of source and line impedances.
Answer Anonymously
Copy Link
