DC power supply is designed to provide galvanic isolation and DC voltage supply to automation, control and relay protection devices, as well as other DC power consumers.
There are following versions of design:
- front-mounted
- side-mounted
- vertical-mounted
- for installation in rectifier cassette
Front panel of DC power supply
DC power supply has a linear LED indicator with a scale of LEDs to indicate the level of output current from zero to the rated value.
There are also three LED indicators for alarm:
- “POWER SUPPLY” for indicating the presence of voltage at inputs
- “OPERATION” for indicating the presence of voltage at outputs
- “OVERLOAD” for indicating an emergency shutdown
Front-mounted version
Front-mounted version of DC power supply is used for installation both in one-sided and two-sided maintenance cabinets.
This version can be installed in a cassette for ZPU10, which makes it possible to install a ZPU10P type rectifier and a DC power supply in one cassette.
Side-mounted version
Side-mounted version of DC power supply is used, as a rule, for installation in one-sided maintenance cabinets. The design allows installation in cabinets with a depth of 300 mm.
Vertical-mounted version
In cabinets where installation of a large number of power supplies is required, it is possible to use vertical-mounted DC power supplies.
Design of the device also allows installation in cabinets with a depth of 300 mm.
Placement
DC power supply is designed for operation in cabinets supplying power to interlock circuits of disconnectors, in auxiliary power and alarm cabinets, as well as in reserve power cabinets and in ground search cabinets.