Sanhe SEK intelligent permanent magnet vacuum
contactor, as a new generation of medium voltage vacuum contactor,
is fitted a permanent magnet mechanism to close/open the dynamic
and static contacts of the vacuum interrupter in a direct motion.
SEK intelligent permanent magnet vacuum contactor can be widely
used in the three-phase AC system below 12kV and rated frequency
50Hz/60Hz where multiple opening and closing operation cycles are
required, and it is especially suitable for users who operate
frequently. SHVC intelligent permanent magnet vacuum contactor
adopts a wide-voltage, high-efficiency and reliable electronic
control module, and uses STM32 mainstream chips inside. It has the
characteristics of fast response to closing and opening, LED
indication for closing and opening, and alarm auxiliary contact
output. SEK intelligent permanent magnet vacuum
contactor has the characteristics of energy saving, material
saving, fireproof, explosion-proof, small size, long life, low
maintenance cost, reliable operation and no pollution. It is
widely used in the control and protection of power transmission and
distribution systems in the fields of electric power, machinery,
metallurgy, mining, petroleum, chemical industry, railway,
broadcasting, communications, and transportation. Using the ideal
technology of breaking current in a vacuum environment, as well as
extremely high reliability and compact structure, the contactor can
be used under particularly harsh conditions. They are suitable for
control and protection (with fuses) circuits, substations and
distribution stations, motors, transformers, capacitor banks,
etc. Features:Main features of SEK intelligent permanent
magnet vacuum contactor are as follows:maintenance freereliable
vacuum technologyfrequent operation supportmonostable permanent
magnet actuatorlong electrical and mechanical lifewide voltage
power supply modulesmall closure valuecompact
structureSpecification SheetTechnical
dataSEK-7P-200/400/630SEK-10P-200/400/630Rated
voltageUr(kV)7.212Rated currentIe(A)200/400/630200/400/630Rated
frequencyfr(Hz)50-6050-60Rated short-time withstand
currentIk(kA)46.3Rated peak withstand currentIp(kA)1016 Rated short
circuit breaking currentIo(kA)45Rated short-circuit making
currentIc(kA)1012.5capacitive switch current Itc(A)230230Operating
frequency(Times/hour)900900Mechanical
life(Times)30×10430×104Electrical
life(Times)AC-3:25×104AC-3:25×104(Times)AC-4:10×104AC-4:10×104Rated
lightning impulse withstand voltageUp(kV)6075Rated power frequency
withstand voltage (1min)Ud(kV)3242Three-phase closing
synchronization(ms)≤2.0≤2.0Contact bounce
time(ms)≤5.0≤5.0Conductive loop resistance of each phase
(20ºC)(μΩ)≤180≤180Control loopControl module- rated operating
voltageUr(V)110V/220V(AC,DC)Rated operating voltage
range(V)0.85Ur~1.1UrLatching mode Permanent magnet Operating
power DC110V,3A DC220V,1.5A AC220V,1AClosing
time(ms)≤50Inherent opening time(ms)≤201min power frequency
withstand voltage(kV)2Auxiliary contacts-quantity 5 open 5
closeConventional heating current(A)6Mechanical
life(Times)5×106Electrical life(Times)2×106Rated working
current DC/AC110V,0.4A DC/AC220V,0.2AConditions:SEK intelligent
permanent magnet vacuum contactor can be used normally under the
following environmental conditions:Ambient temperature:
-25ºC~+40ºCRelative humidity: ≤95% (daily average); ≤90% (monthly
average)Altitude: ≤2000m (SHVC-7); ≤1000m (SHVC-10, SHVC-15)Water
vapor pressure: ≤2.2×10-3Pa (daily average); ≤1.8×10-3Pa (monthly
average)The surrounding air should not be significantly polluted by
corrosive or flammable gas, water vapor, etc.No frequent severe
vibrationDuring operation, the inclination angle between the
installation plane and the horizontal plane is not over 5°Reference
&Executive standardsSEK intelligent permanent magnet vacuum
contactor complies with the standards of most industrial countries
and fully complies with the following standards:IEC 62271-106:2011
High-voltage switchgear and controlgear-Part 106:Alternating
currentcontactors, contactor-based controllers and
motorstarters"IEC 60282-1:2020 High-voltage fuses-Part 1:
Current-limiting fusesGB/T 14808-2016 "High-voltage AC contactor,
contactor-based controller and motor starter"GB 16926-2016
"High-voltage AC load switch-fuse combination electrical
appliance"GBT 11022-2011 "Common technical requirements for
high-voltage switchgear and control equipment standards"GB/T
15166.2-2008 "High Voltage AC Fuses Part 2: Current Limiting
Fuses"JB 7122-2007 "Basic requirements for AC vacuum
contactors"Permanent Magnet StructureStandard fittingProduction
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