Constant Voltage Transformer Characteristics
The typical ferro voltage regulator has the following characteristics:
| Size (kVA): | 30 VA up to 25 kVA |
| Nominal Voltages: | +10% to -20% (varies by manufacturer) |
| Input Voltage Range: | +10% to -20% (varies by manufacturer) |
| Output Regulation: | +/-1% to +/-3% (varies by manufacturer) |
| Phase: | Single phase application only |
| Voltage Step Up/Down: | Yes |
| Cooling Media: | Air |
| Location: | Indoor |
| Efficiency: | Up to 92% (see Disadvantages) |
HOT & COSTLY
Should
Ferros
Be
Retired
?
Ferroresonant transformers typically operate at efficiencies of only 75% to 80%, and frequently operate at efficiencies as low as 50%. Modern electronic voltage regulators operate at efficiencies of 99% … at all times.
A case can be made for replacing all ferros, no matter how new.
Should Ferros Be Retired?
Ferroresonant transformers typically operate at efficiencies of only 75% to 80%, and frequently operate at efficiencies as low as 50%. Modern electronic voltage regulators operate at efficiencies of 99% … at all times.
A case can be made for replacing all ferros, no matter how new.