Test transformers
Test transformers cascade execution
EPRO Gallspach GmbH’s testing equipment is custom built to meet customer specifications. To give you an overview of the available options, you will find below some examples that we have already implemented.
The cascade design enables the generation of very high voltages.
| Model | Insulation & Execution | max. secondary voltage | Output power continuous | Output power short term (1hr) | PD level | Appr. weight |
|---|---|---|---|---|---|---|
| HVOT 200/10Ks | oil, cascade | 200 kVA | 10 kVA | 20 kVA | < 2pC | 430 kg |
| HVOT 300/20Ks | oil, cascade | 300 kVA | 20 kVA | 40 kVA | < 2pC | 1110 kg |
| HVOT 500/25Ks | oil, cascade | 500 kVA | 25 kVA | 50 kVA | < 5pC | 1400 kg |
| HVOT 500/30 Ks | oil, cascade | 500 kVA | 30 kVA | 60 kVA | < 5pC | 3000 kg |
Standard measuring windings can have large errors as soon as they are under any kind of load. Our latest developed is a measuring winding, which guarantees a correct HV measurement over full range with active, capacitive or inductive loads and even with very high current THD, like they occure in applied voltage tests. The measuring winding is build complete inside of the housing and only possible with limited models (please see datasheet in downloads), futhermore a measurement is currently only possible with one frequency without reconnection.