OFFSHORE
APPLICATION
For offshore testing we provide frequency tuned resonant test systems operating down to 10Hz. This concept allows low weight (5t per container) at a maximum test performance. The test system consists of a control/feeder container and 1 or more HV containers, each providing 7uF at 80kV. Other specifications are available. The containers are CSC or DNV certified. Mohaupt VFRTS are turn-key solutions designed customer specific and include all components for operation.
BENEFITS
- Low weight and small footprint
- Modularity allows a flexible adaption of the test setup to the requirements of the test object
- Sea waterproof on-site application
- Reliable operation in harsh environments
- High Q-factors means low power consumptions and low weight
- Robust design electrically thermally and mechanically
- Due to modularity very flexible adaption to the specific testing situation
TECHNICAL DATA
Max. Voltage (kV)
Max. Current (A)
Min. Frequency (Hz)
No. of CSC containers
Max. Load Capacitance
(nF)
Weight
per container
(t)
VFRTS 80-36-10
0
0
0
0
0
VFRTS 80-56-10
0
0
0
0
11000
TECHNOLOGY
The key to expand the load range down to a minimum frequency of 10 Hz and keep a high-quality factor is, to use reactors of ironless design. Conventional reactors do have an iron core. The iron core generates additional losses in addition to the copper losses of the wire. At low frequencies the induction of the iron core increases. In order to maintain the required design limits, an increase of the iron cross section is required, increasing losses and weight. This drawback is overcome by MHVs ironless design. The windings provide excellent electrical performance in steady state operation, as well as in transient conditions (flash over or breakdown of test objects). Furthermore, they have substantial better cooling performance compared to conventional reactor windings enabling currents up to 260A per reactor.