ZN85-40.5 Indoor Auxiliary Handcart Switchgear Breaker

General

ZN85 auxiliary handcart designed and produced by us has a screw rod drive mechanism and can be moved easily and avoid damage of thedrive mechanism due to misoperation.It applies to the 50Hz and 40.5kV three-phase alternating-current single-bus segmented power systemsin KYN61-40.5 armored mobile metallic metal-enclosed switchgears.Used with different primary components,it can realize bus connection,electric energy measurement,and overload protection or short-circuit protection for power equipment and,during system overhauls,functionalcomponent and interlocking.

Product Standards

ZN85 auxiliary handcart is produced in line with the following standard and code.

GB/T 11022-2011 Common specifications for high-voltage switchgear and controlgear standards

● IEC 62271-2007 High-voltage switchgear and controlgear -Part 1:Common specifications

Operating Conditions

Normal operating conditions

● Ambient temperature:-40℃~+40℃(below 35℃ within 24 hours)

● Relative humidity:≤95%(daily average)or ≤90%(monthly average)

● Altitude:≤1000m

Technical Parameters

1.1 Technical parameters

Item	Unit	Reference value
Rated voltage	kV	40.5
Lightning impulse withstand voltage	kV	185
Rated insulation level        1min power-frequency withstand voltage	kV	95
Rated frequeng	Hz	50/60

1.2 Drawing of linkage between the moving contact and the fixed contact

Overall and Installation dimension

Overall dimension of ZN85-40.5 isolating handcart(cabinet width:1400mm)

Rated current(A)	630	1250
Fixed contact size D(mm)	φ35	middle 49
nterphase distance(mm)	300
Handcart travel(mm)	610±2

59	For the auxiliary switch in the operating position
58	or the auxiliary switch in the operating position
Y1	Blocking electromagnet (optional part)