KSO 190 «Iva» Advantages

I. Construction

• KSO-190 Iva regardless its modification has common height 1900mm;
• Convenient mounting;
• Lack of projections and possibility to damage them;
• Intensified door’s construction provides blocking during arc localization inside the cell.

II. Switching units

Name Producer Vacuum circuit-breaker: EVOLIS Schneider electric BB/TEL Tavrida Electric Load-break switches and disconnectors: ISARC VEI Relay protection microprocessor units: SEPAM 1000+, 80 Schneider Electric IPR-A, SMPR-1 ORION Sirius Radius-automatika

• Circuit-breakers are installed both in roll-out and in stationary mode;
• Engine drive provides remote control of the load-break switch and organizes their automatic load transfer;
• ISARC replacement doesn’t need drive adjustment;
• Arc extinction chambers enable to extinguish the arc effectively in limited volume;
• Fixed contact that is situated inside the upper bell isolator is automatically hided by the shutter after the switching off.
• The pole of any phase is placed in a separate isolated body;
• The construction of a switch with a fuse provides switching off all three phases when any of the fuses is activated.

III. Peculiarities

1. Impossibility of simultaneous carrying-out the operation ON and GROUNDED that prevents earthing of the outgoing line that is alive.
   
2. Speed of the breaker contact doesn’t depend on the speed gear handle operator (antireflex defense);
   
3. Factory settings of the unit don’t require its further setting during mounting and operation life.
   
4. Current-carrying parts of the switching unit are made of cooper with silver sputtering that increases current load of the device by smaller overall dimension.
   
5. Polymer insulators fitted with capacitance divider provide cable or collecting bus-bar voltage presence testing (with help of indicator placed on the front of the cell).
   
6. There is a possibility of electrotechnical cable phasing by low voltage on the cutoff point when the cell doors are closed.
   
7. Main circuit is made of high quality oxygen-free electrotechnical.
   
8. Riveted body is made of galvanized roll-formed sections.
   
9. Modern microprocessor relay defense.
   
10. The possibility of electromagnetic and key mechanical operating blockings is provided in accordance with requirements of PEU (7th edition).
    
11. Cells are fitted both with roll-out and stationary installed circuit-breakers EVOLIS, ВВ/TEL.