OWUS - DC indoor disconnector with earthing switch
Application:
Indoor disconnectors OWUS are the devices used for connecting, disconnecting and earthing the electric circuits without load. The devices are suitable for working in traction substations and in the industry. Mounted in the chamber, the disconnector fulfills various functions such as: isolating the positive and negative ends the assembly of transformer/rectifier, isolating the feeder from the power supply, coupling and disconnecting various of traction section. Thanks to its modular design OWUS disconnector provides many different combinations.
Disconnector is designed in two configurations:
- OWUS 1-20 with one motor drive for disconnector and for earthing switch
- OWUS 2-20 with two separated motor drives: one for disconnector and one for earthing switch
Advantages:
- high resistance to short circuit
- silver – plated contacts
- self – cleaning contacts
- motor or manual operating
- compact construction
- compliance with standards: PN-EN 50123-2:2013, PN-EN 50123-3:2003
Technical data:
OWUS 1-20 | OWUS 2-20 | |
Thermal current in open air | up to 2000 A | up to 2000 A |
Rated voltage | 1000 VDC | 1000 VDC |
Rated insulation voltage | 3000 VDC | 3000 VDC |
Short-circuit current 1 s. (disconnector) | 50 kA | 50 kA |
Short-circuit current 1 s. (earthing switch) | 30 kA | 16 kA |
Rated voltage of the motor | 24 VDC, 230 V DC/AC | 24 VDC, 230 V DC/AC |
Rated power od the motor | 90 W | 90 W |
Auxiliary contacts | 3 x 4NO + 4NC | motor 2 x 4NO + 4NC |
Working temperature | -25°C up to 45°C | -25°C up to 45°C |
Min. mechanical durability | 20000 cycles | 20000 cycles |
Closing/ opening | 1-2 s. | 0,5 s. |
Connection diagram:
Technical drawings:
All technical data presented in the catalog can be changed due to technological progress.
DECLARATIONS OF CONFORMITY:
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