DC power supplies of the type DB-GV / DB TY are providing the energy supply of reailway loads and networks and have proven their reliability since many years in construction area of railway systems and railway transport companies. The devices are typically manufactured with maximum output voltages up to 900 volts and a capacity to 1MVA.

The main application areas are:

  • Testing and operation of DC motors
  • Simulation of contact wire voltages and associated fluctuations
  • Feed into local contact wire voltage networks

The Series TY-DB / DB GV have been specifically designed for the supply of electric loads in test field/service environments.
Due to its robust design and mobility (rollable steel casing up to 100kW) these systems are ideally suited for use in workshops and test operating facilities.
The output voltage and power can be adapted to customer requirements in a wide range.

PowerSources offers application-specific customized  DC power supplies with following basic concepts:

DB-GV: Voltage Preselection in multi-steps by a manual switch. For example: 420-600-720V (corresponds to 600V -30%/+20%) and 525-750-900V (corresponds to 750V -30%/+20%). Circuit design in this case: Transformer with taps for voltage selection by manually operated multi-stage switch with downstream silicon rectifier in three-phase bridge circuit with protective environment and full security lines.

DB-TY: Fully variable output voltage in the preselected voltage group (eg. group I: 420V to 720V, Group II: 525V to 900V) by thyristor controlled power group. Sophisticated monitorring and protection devices ensure reliable operation of these systems with maximum safety for the operator. The output voltage is free of harmonics (LC filter section). Up to 100kW, the units can be delivered as a mobile version.

PowerSources provides DC power supplies with following characteristics:

  • customized output voltage and power
  • reduced ripple
  • versions for mobile application or static installation
  • displays / interfaces analog or digital at customer demand
  • Remote control panel by wire or wireless
  • web based monitoring and remote control 
Technical Specifiactions
Power Input 3 x 400V / 50Hz
Output Voltage 420-600-720 V - 0 - 525-750-900 V
(600 V -30%/+20% and 750V -30%/+20%)
nominal current 100A in allen Schaltstellungen
Certificates according to VDE and VBG 4
Mechanical design
Controls
  • 1 step switch, switch position 7
  • 2 illuminated pushbuttons | ON OFF
  • 1 Switch | EMERGENCY STOP SWITCH
Indicator
  • 2 signal lights | Ready / HV on
  • 2 Moving Coil Meter | Current / voltage
Power input juntion box, 4xUHK90 1xSLK70EX
DC-Output High-current connector, 2xUHV 50-KH
Interlock quadruple looped into the emergency stop
(connector Harting)
Signal light externally 4 x control voltage A (connector Harting)
Fuses
  • Power input: 3xNH 200A
  • Control power supply: E14 Neozed 4A
  • Rectifier: Semiconductor Fuses
  • Overload: thermal monitoring
Case Sheet steel, rollable, RAL 7032
Protection IP20
Dimensions (LxWxH) approx. 1260x760x1600mm
Weight approx. 750kg
Technical Specifiactions
Power Input 3 x 400V / 50Hz
Output Voltage 420 to 720V - 0 - 525 to 900V fully variable
(600V -30%/+20% and 750V -30%/+20%)
Ripple <10%, load dependent
rated current 80A at all voltage levels
Certificates according to VDE and VBG 4
Mechanical design
Controls
  • 1 potentiometer, Infinitely 0-270°
  • 1 changeover switch, voltage group I / II
  • 2 button | ON OFF
  • 1 switch | EMERGENCY STOP SWITCH
  • 1 Key Switch | ON OFF
Indicator
  • 2 signal lights | Ready / HV on
  • 2 Moving Coil Meter | Current / voltage
Power Input junction box, 4xUHK90 1xSLK70EX
DC-Output High-current connector, 2xUHV 50-KH
Interlock quadruple looped into the emergency stop
(connector Harting)
Signal light externally 4 x control voltage on (connector Harting)
Fuses
  • Power input: 3xNH 200A
  • Control power supply: E14 Neozed 4A
  • Rectifier: Semiconductor Fuses
  • Overload: thermal monitoring
Case Sheet steel, rollable, RAL 7032
Protection IP20
Dimensions (LxWxH) approx. 1260x760x1600 mm
Weight approx. 650kg