General Description

NKU-SESH-V is a universal system of LV switchgears offers safety and variability for any sphere of application. Withdrawable unit design offers the respective flexibility for frequently changing requirements such as changed motor ratings or connection of new feeders. Withdrawable blocks have three positions “draw-in –test-draw-out”. This design allows to perform fast and safety maintenance for the certain block without switching off the complete switchgear.

LV switchgear NKU-SESH-V is dedicated to accept and distribute the electric energy with alternating-current (50/60 Hz) and voltage 0.4 (0.69) kV in solidly earthed and insulated neutral and protect outgoing feeders to short currents and overloads.

Combination of columns with fixed and withdrawble blocks.
Local and remote monitoring of electrical equipment.
Wide range of scheme solutions.
High reliability due to the domestic manufactured electrical equipment and acceptance tests.
Flexible design to realize the compact dimensions of a complete switchgear.

Technical Characteristics

Specifications

Value

Rated current of collecting buses, A

800 - 5000 

Rated current of distributing (group) busbars, A

800 - 3200 

Rated operating voltage main circuit, V

380; 690

Rated  impact withstand voltage (Uimp), kV

8; 12

Rated conditional short – circuit current (Icc), kA

up to 100

Short - term circuit current (Icw) 1s, kA

up to 220

Islanding form 

1, 2b, Зb, 4b

Function module

Fixed, drawers