1.      Brief introduction

KYN28A-12 metal-cladwithdrawable switchgear is suitable for three-phase AC 50Hz/3.6-12kV singlebusbar and single busbar section system. Apply to distribute electricity powerand implement system control, protection, supervision monitoring. The switchgear comply with the standards IEC298.

The switchgear is providedwith so called 5-prevention function, that is:

Prevent the circuit-breakerfrom mal-operation

Prevent the truck from beingpushed and pulled on-load

Prevent the earthing switchfrom being closed while the switchgear is electrified

Prevent the switchgear frombeing electrified with the earthing switch being closed

Prevent entering electrifiedcompartment

1.      Operating Conditions

Ambient temperature:max. to 40 centigrade, min. to -10 centigrade

Altitude:not exceeding 1000m

Relativehumidity: daily average less than 95%, monthly less than 90% 

Earthquakeintensity: less than 8 magnitudes

Installationsite: without fire risk, explosion hazard, heavy pollution, chemical corrosionand violent vibration

Note:Special condition and requirements, consult with the manufacturer

1.      Ordering instructions

Please specify the followinginformation when ordering

The main wiring scheme, single wire system diagram,pareto chart and layout plan

The quadratic function diagram, terminal diagram

Components inside the switchgear model number,specifications and quantities

Electrical equipment summary table

Span length and height dimensions if bus structureis needed

If the equipment needs to be used in specialenvironment, place advise