Applications of Tank Type Long-Running HV AC Test Transformers include testing according to IEC, ANSI / IEEE/CNAS & other national standards. Test objects covered are:

1. Power transformers
2. Instrument transformers
3. Insulators
4. Bushings
5. GIS

AC test system Type kV - kVA	Regulating transformer Type  kVA for cont. duty	Compensating reactor  kVA for cont. duty	Coupling capacitor kV - nF
200-300	100	400	300-1
400-1600	500	2100	400-1
500-500	150	750	500
650-650	250	1200	700
900-900	300	1200	900-1

1. Specially designed bushings for indoor or outdoor use
2. Large range of applications
3. Low acoustic noise level (ca. 65 dBA)
4. Sophisticated protection features for optimal test object and personnel protection
5. Power compensation inductance reduces the power required on the primary (LV) side of the test system
6. Possibility to use an external oil expansion vessel or protection relay
7. Suited for continuous duty, long duration tests

Tank Type Long-Running HV AC Test Transformers are especially designed for testing objects of medium capacitance in the factory or outdoors. 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.