DESCRIPTION
This three-phase DC high-voltage power supply is suitable for the development and testing of frequency converters for railway engineering. It is situated in development laboratories, proving grounds, test institutes, schools and universities. Because of the high DC output voltage, appropriate safety measures have been taken, such as:
- Emergency-off circuit with external inputs and outputs as double-pole potential-free contacts for emergency off circuits and safety circuits
- Warning lights and additional connections for external warning systems.
- Discharge circuit for the intermediate-circuit capacitor
- Earth trip with a compressed-air drive to short out and earth the DC output
To ensure safety, in the event of mains failure, the DC output is shorted out and earthed by the compressed-air drive.
Three-phase DC high-voltage supplies with separate winding, motor drive and electronic voltage regulation of the output voltage to approx. 1.0 %, with short-circuit-proof DC output
Advantages
- Compact and modular design ( thus simple extension possible )
- Control via Powerformer
- Risk assessment according to the machinery directive
- Special safety circuit
- No EMC problems
| Input voltage | 3 x 400 V L/L bzw. 3 x 230 V L/N |
| Output voltage | 0 – 12000VDC |
| Output current | 2 x 20 – 300 A |
| Output power | 100 kW – 800 kW as standard version |
| Vector group | Delta /star / star / 2 x B6U |
| IP Code | IP 20 |
| Frequency range | 50 / 60 Hz |
The REOLAB 520 power supplies have the same features as the REOLAB 420 DC power supplies, but with an additional separately regulated DC output of 0 – 150 VDC, 30 AC or 50 ADC for the control voltage of the power semiconductors. On request, they can also be supplied with an integrated UPS to ensure that the power semiconductors continue to receive control voltage for a certain period of time even in the event of a power failure.
*Of course, other voltages and outputs can also be offered on request.
In addition, different operating options/operating concepts and industrial interfaces are possible.
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