FIVESTAR HV TESTING EQUIPMENT, operating in the electricity industry, specializes in developing and providing high-voltage testing equipment, including AC Dielectric, HV DC Voltage, Impulse Voltage, Impulse current and other special tests. We offer comprehensive solutions for research, manufacturing, or maintenance purposes.
Model: TDSW
Voltage Rating: 50kV-800kV
Current Rating: 0.1A-20A
Use location: Indoor / Outdoor
The test transformers are situated in an enclosed and grounded metal tank with a bushing to air, filled with transformer oil inside. They are a very space-saving solution, thanks to the grounded tank, the test system can be set up close to the wall or objects within the test field, and if the positioning is outside, the HV bushing can be routed through the wall.
The neutral end of the high-voltage winding is brought out insulated. The high voltage end is brought out through the transformer bushing. Either an oil -air or oil- SF6 bushing can be used depending of the application. The bushing is chosen according to the ambient conditions and is capacitively graded for the upper voltages. Upon request, the bushing can be fitted with a measurement tap. An aluminium top electrode is placed on the bushing to allow a PD free operation up the rated voltage. An angle with a multi -contact plug allows to connect mechanically and electrically a high voltage connection.
Conventional AC test transformers are especially designed for testing objects of medium capacitance in the factory, indoor or outdoor. These systems are particularly suited for tests requiring stable voltage even if the load changes under voltage (heavy corona, wet & pollution tests) or when the load is of inductive kind (inductive voltage transformers). The system duty cycle can be freely chosen and is insured by adding radiators or forced oil - cooling to the transformers. These systems are also suited for continuous duty, long duration tests.
HVAC test systems with metal tank transformer are better suited for higher test powers and higher test loads than cylinder modular type, also better for continuous duty and long duration tests, and this transformer specifically designed for all outdoor weather conditions are available.
