Product Details

FKW18-12KV FKW18-40.5KV FKW18-35KV Outdoor load switch

Overview
Outdoor HV solation vacuum load switch from my company and Xi’an High Voltage Apparatus Research joint research and development by the company’s first production of a new generation of high-voltage electrical products, through rigorous testing and long-term test pattern running evaluation, the technical performance indicators and IEC standards all reached GB3840 for Rated voltage 12KV, Rated Current 630A, three-phase AC 50Hz supply point network.

Main technical parameters

Serial number	Project		Unit	Parameter
1	Rated voltage		KV	12
2	Rated frequency		Hz	50
3	Rated Current		A	630
4	Rated active load breaking current		A	630
5	Rated closed-Loop breaking current		A	630
6	5%Rated active load breaking current		A	31.5
7	Rated cable charging breaking current		A	10
8	Rated no-load transformer breaking capacity			1600
9	Rated breaking current of capacitor		A	100
10	1min power frequency withstand voltage :vacuum Fracture,white, relative to /solation Fracture		KV	42/48
11	Lightning impulse withstand mortgage:white, relative to /solation Fracture		KV
12	Rated short time withstand current (heat stable)		KA	20
13	Rated short circuit duration		S	4
14	Rated peak withstand current (dynamic stability)		KA	50
15	Rated short circuit making current		KA	50
16	Mechanical life		Times	10000
17	vacuum interrupter contacts to allow wear		mm	1
18	Manual torque		N.m	≤200
19	Adjustment of load switch vacuum Interrupter assembly	Contact opening distance	mm	5±1
		Average gate speed	m/s	1.1±0.2
		Different points of three-phase gate	ms	< 5
		Different points of three-phase gate	ms	< 2
		Charged and relative distance between	mm	> 200
		secondary circuit resistance	υΩ	≥400