Product introduction:When the 12kV overhead distribution line T
connection line or the end user internal fault occurs, the
substation outlet switch trip will be caused because the input
switch protection time limit and the substation outlet switch
protection time limit cannot be adjusted reasonably. If the fault
is permanent in nature, substation overlap will not be successful,
and a local accident within a medium voltage subscriber boundary
will outage the entire 12kV distribution line. If an outdoor
demarcation circuit breaker is installed at the T-junction or user
end (responsibility demarcation point), the fault (overcurrent,
short-circuit, single-phase ground fault, etc.) within the user
boundary is confirmed by judgment, and the fault is automatically
isolated, then the normal power consumption of users in the
non-fault area can be ensured. The application of ZW32-12F outdoor
high-voltage intelligent dividing vacuum circuit breaker (watchdog)
in 12kV feed overhead line can avoid the joint accident power
outage of fault-free line, reduce the fault power outage range,
shorten the user's power outage time, and protect the safe
operation of the main network. And with fault detection function,
protection control function and communication function, can realize
automatic removal of single-phase ground fault and automatic
isolation of short-circuit fault between phases. The installation
point shall be the responsibility boundary point of the user's line
entry of the 12kV distribution line, and it can also be applied to
the branch line connection meeting the requirements.Normal
conditions of use:Ambient temperature: not higher than +40ºC, not
lower than -15ºC;Air relative humidity: the daily average is not
more than 95%, and the monthly average is not more than 90%;The
altitude does not exceed 1000 meters;Earthquake intensity does not
exceed 8;A place free from fire, explosion, serious pollution,
chemical corrosion and severe vibration.Product Drawing:.COMPANY
PROFILE:AN HUANG isa modern company of professional design and
manufacturer of 3.6kV to 40.5kV Medium Voltage cable accessories,
electric components and whole set cabinet Subsidiaries:Anhuang
Electric Power Technology Co.,Ltd Zhejiang Anhuang Imp & Exp.
Co .. Ltd. We provide high quality, low cost products for utility
systems worldwide Company constantly introducing new
technology,newcraft, the product structure constantly improved.Our
Professionalproduction testing equipment.special production
technology and professional service team can satisfy the customers
demand. Our professioal engineers,technicansand managers
team always keep our promise:ANHUANG is not only provide
cost-effective high quality products.but also provide high
quality, efficient, fast service and technical support to ensure
customers' require.Our company obtained international quality
management system ccertification for ISO9001,ISO1401,OHSAS18001.Our
company adhenring to the "safety electricity, forever brilliant "
as our enterprise's humanism. Willing to work with you hand in hand
to build better future.
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