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Polymer Type Surge Arrester 30KV Polymer Type Surge Arrester 30KV

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Polymer Type Surge Arrester 30KV

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Zinc oxide surge arrester is a lightning protection device with superior protection performance, light weight, pollution resistance and stable performance. It mainly uses the good non-linear volt-ampere characteristics of zinc oxide to make the current flowing through the surge arrester at normal working voltage very small (microamp or milliampere level); when the overvoltage acts, the resistance drops sharply, venting the overvoltage Energy to achieve the effect of protection. The difference between this kind of lightning arrester and the traditional lightning arrester is that it has no discharge gap, and uses the non-linear characteristics of zinc oxide to discharge and break.
  • YH-10W-30

  • SMICO

Availability:

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


ModelRated voltage (kVr.m.s)Continuous operating Voltage(KVr.m.s)Lightening impulse residual voltage under nominal discharge current (<=KVp)Line discharge classCreepage distance(mm)2ms square wave impulse current withstands(A)4/10μhigh current impulse Withstands(KAp)
YH-10W-665.1181320250100
YH-10W-997.65271430250100
YH-10W-121210.2361430250100
YH-10W-151512.75451530250100
YH-10W-181815.3541530250100
YH-10W-212116.8631640250100
YH-10W-242419.2721740250100
YH-10W-272721.6811740250100
YH-10W-303024901890250100
YH-10W-333326.4991890250100
YH-10W-363628.810811115250100
YH-10W-424233.612621260400100
YH-10W-48483913921260400100
YH-10W-54544216021260400100
YH-10W-60604817821465400100
YH-10W-666652.819621465400100
YH-10W-72725721422255400100
YH-10W-848467.224422255400100
YH-10W-909072.524922255400100
YH-10W-96967526533555800100
YH-10W-1081088428133555800100
YH-10W-1201209630034153800100
YH-10W-15015012041635040800100
YH-10W-20020015652037110800100



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