Serial feed coupling type FGS
These single-phase, dry-insulated components are designed for serial supply of audio frequency voltages to medium voltage range mains circuits. Together with a receiver it is then possible to activate specific consumer groups.
The mains connection is via nickel-plated copper flat terminals on top, which are fitted with tapped holes.
The transmitting connection features M10 bolt terminals in a separate terminal box at the base of the transformer.
The components are manufactured in brace support form with cast resin insulators. The mains winding is located on a vertical radial-wound rod core. The transmitting winding is cast in epoxy resin and forms the outer sleeve and outer insulation of the transformer.
The transformer is mounted using the aluminium base, in which the transmitting end terminal box is also integrated.
These transformers need to be transported and installed in a vertical position.
Dimensioning is in accordance with DIN 57532 / VDE 0532 (Part 22).
Over-voltage on the transmitting side exceeding 10 kV peak value (e.g. due to main short circuit current) must be prevented by the user with an over-voltage surge arrester.
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| Specifications: | FGS 10...30/60 | FGS 10...30/75 |
| Mains voltage: | 12; 24; 36kV | |
| Mains frequency: | 50Hz | |
| Audio frequency voltage: | 1000V | |
| Audio frequency: | 167 - 217Hz | |
| Inductivity transmitting end: | 4.75mH | 3.5mH |
| Max. short circuit power: | 500MVA | |
| Max. nominal current: | 2900A | |
| Max. ON audio frequency per hour: | 15% | |
| Max. thermal load (constant): | 120% | 110% |
| Max. thermal load (2 hours): | - | 120% |
| Level [%] x mains power handling capacity [MVA]: | ≤ 60 | ≤ 75 |
| Weight: | 750kg | 860kg |






