HVR-63 Series Generator circuit-breakers Gadon kọrọ-dan HVR-63 Series

Overview

A HVR-63 generator circuit-breaker (GCB) na a kowane da yake cikin tarihin HGI generator circuit-breaker series, kuma ana iya amfani da shi a kan wasu magana mai sanyarwa da suka haɗa zuwa 180 MW. Ainihin bayanin da taɓataccen itace ta zama babban rawa a cikin wasu magana mai sanyarwa da suka haɗa zuwa 63 kA. Ingantaccen abubuwan da ake yi a cikin shine direct contact ablation display, wanda ke ba da darajar da ƙarin inganci da dabi'ar da suka fi karfi a cikin wasu magana da suke yi amfani da GCBs da yawa, kamar pumped storage power plants. Ana iya samun HVR-63 generator circuit-breaker a matsayin HVR-63XS da rated continuous currents zuwa 6300 A ko kuma a matsayin HVR-63S da rated continuous currents zuwa 8000 A. Duk waɗannan variants suna ba da fadada busbar connection. Wannan HVR-63 GCB ya tabbatar da shi a kan in yi aiki a cikin tushen da ake yi waɗannan GCBs.

Hydraulic spring operating mechanism

Advanced operating system delivers stability and dependability The hydraulic spring operating mechanism combines the advantages of a hydraulic operating mechanism with those of spring energy storage system. Energy storage is accomplished with the aid of a disk spring assembly, with the advantages of stability, reliability and resistance to temperature variability. Tripping of the operating mechanism and energy output are based on proven design elements of the hydraulic operating technique, such as control valves and hydraulic cylinders. The operating mechanism is based on the differential piston principle. For the closing operation the piston head side is isolated from the low pressure and simultaneously connected to the high pressure oil volume. As long as the pressure is maintained, the piston remains in the “closed” position. A pressure controlled mechanical interlock prevents movement of the piston to the “open” position in case of a pressure drop. For the opening operation, the piston head side is isolated from the high pressure and simultaneously connected to the low pressure oil volume. The charging state of the spring disk assembly is controlled by switching elements, actuating the pump motor to immediately maintain the oil pressure. A non-return valve between pump and high-pressure oil volume prevents pressure loss in the event of a pump outage. The hydraulic system is hermetically sealed against atmosphere. The mechanically operated position indicator provides reliable indication of the circuit-breaker position. The drive operates all three circuit-breaker poles simultaneously by mechanical linkages, thus keeping the switching time difference between the poles to a minimum.

Technology parameters