Secondary wiring unit of department "Designing" is engaged with design of relay protection, automation, control, signaling, metering and overall diagrams for electrical systems with different voltage levels. The designing is graphically realized by specialized softwares EL-CAD and AutoCAD. EL-CAD is specially developed for time-saving and effective designing of the secondary switching diagrams.

Below are given the diagrams and drawings, which are part of the secondary wiring:

• General diagrams for control, signaling and blocking;
• General diagrams for the relay protections and automation
• Designs for trade and energy metering
• Specific designs: diagrams for automated switching of spares (AVR), operation of the control units, Auxiliary supply AC/DC, etc.
• Technical specifications, cable cards, mounting tables.

On the base of our design projects we are also able to manufacture the needed cabinets and cubicles:

- Relay cubicles
- Control cubicles
- Control cabinets
- Specific cubicles
- Trade and Energy metering cubicles
- Low Voltage DISTRIBUTION BOARDS TYPE PRISMA P series