6-10kV MV Vacuum Contactor-fuse combination Switch for Switchgear, VACFC

VACFC

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1. General description

VACYC permanent magnet AC M.V. vacuum contactor and VACFC series AC M.V. vacuum contactor-fuse combination apparatus(F-C) are three-phase AC indoor middle voltage switch device suitable for AC 50-60Hz and the rated working voltage of main circuit is 7.2kV and 12kV. It has the advantages of flexible function combination, compact and reliable structure, multiple protection functions, long service life and allowed frequent operation. It can be widely used to open and close load circuits such as AC motor and transformer, and can also be used for capacitor reactive power compensation.

VACFC series combination apparatus adopt modular combination structure, which can be used by single contactor or combined into F-C, and can be fixed or drawout moving type. The drawout type can be used with KYN28A(GZS1) intermediate cabinet with width of 650mm or 800mm and can be used to replace VSC/P contactor.

VACYC vacuum contactor can be used alone or with other electrical apparatus.

VACYC permanent magnet AC M.V. vacuum contactor and VACFC series AC M.V. vacuum contactor-fuse combination apparatus meet the requirements of national standards GB/T 14808 and GB/T 11022.

2. Main technical parameter

Item	Unit	VACFC
Rated voltage	kV	12	7.2
Rated current	A	25-160	25-315
Rated breaking current	kA	40
Limit breaking capacity	kA	40(100peak value)
Rated transfer current	kA	3.15
1 min rated power frequency withstand voltage	kV	42	32
Lightning impulse withstand voltage	kV	75	60
Power frequency withstand voltage of control circuit	kV	2
Rated operating voltage	V	220V(AC/DC optional)
Operating voltage range	V	75%-100% Ue
Maximum operating current	A	<7.5
Rated current of auxiliary contact	A	5
Life electrical AC3	thousand times	25
Life electrical AC4	thousand times	10
Life mechanical	thousand times	50
Rated operating frequency	times/h	300
Short time operating frequency	20s	600
Closing time	ms	≤40
Opening time	ms	≤35
Average closing speed	m/s	≥0.4
Average opening speed	m/s	≥0.45
Three phase non-simultaneity	ms	≤5
Clearance between open contacts	ms	≥5	≥3.5
Over travel	mm	≥1.5
Main circuit resistance	μΩ	≤150 Not including fuse

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