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Lightning Surge Arrester

Location - Home PRODUCTS Lightning Surge Arrester

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Porcelain Type Surge Arrester11KV

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  • Product Details
The basic principle
Metal Oxide Arrester (MOA) is the most advanced over-voltage protection. The core components using Zinc oxide barrier, compare with traditional silicon carbide arrester, it changed the characteristic of arrester, improve the flow capacity of over-voltage, so that make arrester changed fundamentally.
When the arrester working under nominal voltage, only Microamp current flowing through the arrester. When encountered lightning hit, because of the nonlinear of ZnO barrier, thousands of amps current flow through the arrester at that moment, arrester under conduction status, release over-voltage energy, effectively limits the violations of over-voltage on the transmission and distribution equipment.
Condition of Use
Ambient temperature: -40℃ - 40℃
Altitude: 1000-2000m
AC Frequency: 50Hz or 60Hz
Long-term working voltage applied to the arrester does not exceed the continuous operating voltage.
Maximum wind velocity: ≤35m/s
Earthquake class: ≤7°
Polluted areas should state.
 
Use characteristics
Metal oxide surge arresters use for protection of AC electrical power system, avoid from the atmosphere over-voltage and operating over-voltage damage.
 
Technical Standards
GB11032-2000、JB/T8952-1999、IEC60099-4、IEEE.C62.11
 
Technical Parameters
Code No.
Rated Voltage
MCOV
Power frequency discharge voltage
≥
1.2/50μs Impulse discharge Voltage
≤
8/20μs Lightning impulse residual voltage
≤
Long impulse withstand current2000us
4/10μs High current impulse withstand
KV(rms)
KV(rms)
KV(rms)
KV(rms)
KV(crest)
KV(crest)
KV(crest)
Y5C-11
11
5.1
11
18
18
100
65
Y10C-11
11
5.1
11
18
18
200
65


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