GR19

Three-phase power converter GR19


The GR19 converter series are used for DC motor control application.
These are totally controlled three-phase bridges in unidirectional (non-regenerative) and bidirectional (regenerative) versions.

This product was created to respond to the requests for applications that require high currents and high voltages.

The converter is equipped with protection fuses and snubber filters that work against overvoltages.
To simplify maintenance of the unit, the converter is equipped with handles for extracting the thyristor directly from the stack without having to remove or disassemble the entire module.
Maintenance is therefore simplified and allows any operator without a high level of preparation to extract the thyristor or fuse and replace it.

The voltage range of the GR19 converters ranges from the classic 400Vac to 1250Vac (Vrrm thyristor 4200V). The maximum current that can be delivered from the bridge is 5000A.

GR19 convertitore di potenza dimensioni

GR19 convertitore di potenza dimensioni

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 Unidirectional converter
Bidirectional converter
Main supply voltage 500 ÷ 690V
800 ÷ 900V
950 ÷ 1250V
Tolerance ± 10% power supply
Rated current 3500A; 4000A; 4500A; 5000A
Rated frequency 50 and 60 Hz; ± 2%
Insulation voltage 2.5 ÷ 4 kV
Protection degree IP00 / IP20
Diode/thyristor protections RC snubber; fuses
Converter protectionOvertemperature; ventilation failure
Auxiliary voltage 3-phase 400 V at 50Hz
Cooling system Forced air
Installation type Wall mounting
Dimensions 780*440*1312mm (W*D*H)
780*440*2110mm (W*D*H)
Weight 280 kg unidirectional converter
500 kg bidirectional converter

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