MEWOI-YH Series High voltage Zinc Oxide Lightning Arrester

  • Name:
    MEWOI-YH Series Zinc Oxide Lightning Arrester
  • Model No.:
    MEWOI-YH Series
  • Main Features:
    Zinc Oxide Lightning Arrester
  • Price
OEM/ODM Testing Instruments Manufacturer
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Contact Us for QuotationEmail:mewoi@mewoi.comWhatsapp: +8618620373879
Website Guide:www.mewoi.comGuideProduct NameSelection Guide

INTRODUCTION

Lightning arrester is the basis of insulation coordination of various electrical equipment (transformer, reactor, capacitor, generator, motor, PT, CT, circuit breaker, contactor, etc.) in power system. The internal and external insulation index (short-inch power frequency voltage withstand, lightning impulse voltage withstand and operation impulse voltage withstand) of all electrical equipment in power system is determined by the protection performance of lightning arrester, commonly known as "oxidation". Zinc arrester is a new generation of arrester, which has been popularized in the world since 1980s by the United States, Japan and other countries. It is the most advanced product of conventional arrester. With excellent non-linear volt-ampere characteristics, the steep wave response is fast and the flow capacity is large. The use of self-blowing gap and uniform voltage irradiation structure reduces the dispersion of discharge, and the use of composite insulating coat with small impact coefficient conforms to the development trend of miniaturization, safety and rabbit maintenance of international power products. Compared with traditional inorganic materials such as ceramics and glass, polymer-organic composites have the advantages of small size, light weight, pollution resistance, non-cleaning, explosion-proof and shock-proof.

MEWOI-YH Series.011.jpg

Usage and Execution Standard

This product is used in power generation, transmission, substation and distribution systems with AC 220 kV and below. It is used to limit the amplitude of lightning and operating overvoltage in the system to the specified level. It is the basic equipment for insulation coordination of the whole system. At the same time, this product can not be used to restrict the harmonic elimination of resonance overvoltage system. It needs to adopt other ways. The model of this product is compiled according to JBT8459-1996 "Modeling Method of Arrester Products", and the gap-free product is in accordance with GB11032-2000 "AC Gapless Metal Oxide Arrester" standard; the gap product is in accordance with JB9672-2005 "Connected Gap Metal Oxide Arrester". Important parameters and configurations not clearly defined in the above standards shall be revised and implemented in accordance with DL/T6201997 "Overvoltage Protection and Green Coordination of AC Electrical Devices".

Normal Working Conditions

Enviroment Temperature
no higher than + 40C, no lower than - 40C
Altitudeno more than 3000m
Frequency Of Power Supply50 + 2Hz; 60 + 2Hz
Maximum wind speed35m/s
Rabbit Cleaning ConditionsMedium Dirty and Below
For gapless productsFor non-gap products, the long-term applied power frequency voltage shall not exceed the continuous operating voltage of the arrester.
For products with gapThe short-term power frequency voltage rise at installation point shall not exceed the rated voltage of arrester.
For long-term useIn the following abnormal conditions, lightning arresters should be specially manufactured. 
1,the temperature or elevation exceed the standard (plateau, hot strip, cold zone, fully enclosed cabinet, near electric furnace, etc.)
2,there are serious tidal erosion gas impurities (water, salt field, chemical plant, etc.),
3,strong ultraviolet radiation (plateau, strong sunshine arid land, etc.). Areas, etc.)

Technical Specification Datasheet

Following is the typical parameter table of conventional arrester, which is arranged from low to high according to the voltage level, so that users can find it easily. Each national standard model can be derived from several models of products, limited to space, not a list. If users have suspicions on the model, they can directly consult the system nominal voltage column of our company's technical department. The data of * is the motor rated voltage corresponding to the motor protection arrester. In the power frequency discharge voltage column, the data of * is the effective value of the power frequency withstanding voltage of the high voltage arrester above 110 kV. At the end of the paper, it is pointed out that the shock current corresponding to the residual impulse voltage of 3060 lightning arrester can be matched with most products such as disconnectors, counters and other accessories. The disconnector is equipped with "L" and the counter is equipped with "J" after the model.

Selection Guide

ItemVoltage Level(KV)Working PlaceSystem nominal voltage(KV)RMSModel No.

Rated V(KV

)Effective value

Gapless ArresterArrester With Gap

Peak Residual Voltage

(KV) no more than

2000 Square Wave 

Current Capacity (A)

4/10 Large Current Tolerance (KA)






Continue to operate V(KV)DC1mA(KV)no less thanMax leak(uA) at 0.75 times DC reference voltageP-frequency discharge-V (KV) RMS not less thanPeak value of 1.2/50 impulse discharge-V(KV) is not greater thanMax-conductive current(uA)8/20 Lightning impulse current30/6Operating impulse current1/4Steep slope impulse current

Connect to the previous page(item1-85)
85110KVTransmission Line110
YH10WX-108/2811088415750---281239315600100
86110KVTransmission Line110YH10WX-108/309108
8417650
---309
263348600100
87110KVTransmission Line110YH5CX-90/26090
-130
50170525-260
-29240065
88110KVTransmission Line110YH10CX-90/260
90
-130
50170525-260
-292600100
89110KVTransmission Line110YH10CX-96/28096-140
50170525-280

314600100
90110KVTransmission Line110YH10CX-102/296102
-14850
170525-296-332
600
100
91110KVNeutral110YH1.5W-60/14460488550---144135-40065
92110KVNeutral110YH1.5W-72/186
72
5810350---86
174-40065
93220KVPower Plant220YH10WZ-192/500
19215028050---500426560800100
94220KVPower Plant220YH10WZ-200/520200
15629050---520442582800
100
95220KVPower Plant220YH10WZ-204/532204
15929650---532
452594800100
96220KVPower Plant220YH10WZ-216/562216
168.5
314
50---562478630
800100
97220KVTransimmition Line220YH10WX-216/562
216
168314
50---562478630
600100
98220KVTransimmition Line220YH10WX-216/618216168346
50---618526693600100
99220KVTransimmition Line220
YH10CX-185/520
180
-260
50340900-520-584
600100
100220KVTransimmition Line220YH10CX-192/560192
-280
50340
900-560-628600100
101220KVTransimmition Line220YH10CX-204/592204
-
296
50340900-592
-
664
600100
102220KVNeutral220
YH1.5W-144/320144
116
205
50
---320299
-600
65
10327.5KV
Railway27.5
YH5WT-42/12042
346550---1209813840065
10455KV
Railway55YH5WT-84/24084
6813050
---240
276
276
400
65

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label:   Zinc Oxide Lightning Arrester

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