Forced Air Power Static Converter GR91
The GR91 converters are forced air cooling static converters, designed to meet the needs of customers who use these bridges for applications such as:
- Three-phase diode bridges
- Semi-controlled DC Bus power supplies
- Three-phase thyristor bridges
- Three-phase static switches
- Single-phase unidirectional bridges
- Single-phase static switches
These are bridges created for low power low voltage applications. The current range is ranging between 60A and 700A depending on the circuit type.
Dimensions and performances are strictly connected to the application and to the circuit configuration type.
Eaton Bussmann High-Speed fuses are generally connected to the bridge input, in order to protect the semiconductors.
Each converter is equipped with a thermal protection suitably designed to ensure its thermal and electrical characteristics.
Technical data
| Ambient condition | |
|---|---|
| Altitude | 1000 m. a.s.l. | Climate | Temperate | Min./Max. operating temperature | 0 ÷ 40°C | Storage temperature | -40 ÷ +55°C | Relative humidity | 10 ÷ 90% (from 0 to 40°C) |
| Main general data | |
|---|---|
| Converter type | Three-phase diode bridges Semi-controlled DC bus power supplies Three-phase thyristor bridges Three-phase static switches Single-phase unidirectional bridges Single-phase static switches Bidirectional thyristor bridges | Main supply voltage | 380 ÷ 480V
500 ÷ 690V Other voltages on request | Tolerance | ± 10% power supply | Rated current | 60A ÷ 700A | Rated frequency | 50 and 60 Hz; ± 2% | Insulation voltage | 2.5 ÷ 4 kV | Protection degree | IP00 | Diode/thyristor protections | RC snubber; fuses | Converter protection | Overtemperature; ventilation failure | Cooling system | Forced air | Installation type | Open frame module | Dimensions | Different for current size and type | Weight | Different for current size and type |
