I. General 

KYN61-40.5 AC metal-armoured movable-type switchgear (hereinafter referred to as switchgear) is a 40.5kV three-phase AC 50Hz distribution equipment. It is applicable to the distribution rooms of power station, power substation and its industrial and mining enterprises to receive and distribute power to control, protect and monitor circuit; besides the extensive application in general power system, this switchgear can be applied in power circuit of frequent operation. This switchgear meets GB3906-2006,IEC62271-200 Alternating-current.

II. Model Definition

III.Operational Environment 

a. Ambient Temperature: -10℃~+40℃;
b. Elevation: Below 1000m;
c. Relative Humidity: the average not greater than 95%, monthly average not greater than 90%;
d. Seismic Intensity: not greater than 8-magnitude;
e. It is not applicable to operate in corrosive and combustible gas and water-vapor polluted places.

IV. Technical Parameters

\	Items	Units	Parameters
\	Rated voltage	kV	40.5
\	Rated frequency	Hz	50
\	Rated current	A	1250,1600
\	Rated closed current (peak)	kA	25,3105
\	4s thermal stability current	kA	63,80
\	Rated dynamic current (peak)	kA	25,31.5
Insulation level	1 min power frequency withstand voltage (effective value) (interphase, pair)	kV	95
	Lightning impulse withstand voltage (peak)	kV	185
	Isolation break 1 min power frequency withstand voltage (effective value)	kV	115
\	Isolation break lightning impulse withstand voltage (peak)	kV	215
\	Enclosure protection grade	\	Shell IP4X, Isolation room IP2x
\	Cabinet body dimension (width×depth×height)	mm	1400×2800×2600 1600×2800×2600
\	Circuit breaker type	\	HVX-40.5 VD4-40.5 ZN85-40.5 3AE-40.5

V. Installation Foundation Diagram

1. The foundation channel steel for secondary pouring concrete, can reverse buckle.

2. Switch cabinet is fixed on the channel steel, welding is allowed.