Title :
Electronic based high-voltage measuring transformers
Author :
Slomovitz, Daniel
Author_Institution :
Ute-Laboratorio, Montevideo, Uruguay
fDate :
4/1/2002 12:00:00 AM
Abstract :
A new electronic system to assist high-voltage measuring transformers is proposed. This system compensates the voltage drops in the series impedances of the transformer, which are the main cause of errors at power frequency. The nonlinear behavior of the magnetizing branch has no influence on the results. The proposed compensator also reduces the influence of the burden impedance on the transformer errors. Any auxiliary winding or core is not necessary so that conventional units can be compensated
Keywords :
compensation; potential transformers; power system measurement; voltage measurement; electronic based high-voltage measuring transformers; error compensation; high-voltage networks; high-voltage techniques; magnetizing branch; nonlinear behavior; power frequency; series impedances; standards; voltage drops compensation; voltage transformers; Capacitors; Circuits; Frequency; High-voltage techniques; Impedance; Magnetic cores; Magnetic separation; Resistors; Transformer cores; Voltage transformers;
Journal_Title :
Power Delivery, IEEE Transactions on
