Resistive Capacitive Voltage Transformers For Power Quality Applications

Introduction: Power quality has become a major concern for both, electricity providers and their customers. Today‘s electrical equipment is far more sensitive than the electrical devices of the past. Power disturbances results in customer dissatisfaction, load and revenue losses. To measure and determine the origin of the disturbances, an true and reliable image of the voltage on the HV line is needed. The Trench RC Voltage Transformers (Fig. 1) provides this image because of their exceptional characteristics: • Accurate over the range from DC up to more than 10 kHz! • Bandwidth up to 2 MHz!...

Fig. 2: Comparison of different 420 kV Voltage Transformers Construction: Trench has a long experience with capacitive dividers and capacitors for different applications: CVTs and coupling capacitors for HV AC networks, dividers for DC applications or test labs, energy storage capacitors or grading capacitors. Our RCVTs are designed based on this long experience, assuring good performance over the temperature range within the lifetime of the Voltage Transformer. The resistors connected in parallel to the capacitors windings have been selected after several tests to guarantee an extremely low...

Electrical and Mechanical Data: Type Highest Rated voltage for power equipment frequency Um (kV) test voltage Up (kV) Minimum sparking distance (mm) Standard creepage distance (mm) (1) (1): other values available on request (2): for oil / paper-polypropylene insulated units with porcelain insulator Please contact us for more information: Trench France SAS 16, rue du Général Cassagnou B.P. 80070 F-68302 Saint Louis Cedex, France Phone + 33 3 89 70 23 23 Fax + 33 3 89 67 26 63 E-Mail [email protected] Product Manager RCVT: Christian Weber Phone + 33 3 89 70 35 94 E-Mail [email protected]...