MZE Product performance

HA71-3174A As of May, 20142014-5ME（0.6L）1L

Solid-state Surge Arrester

Delivery Record : Lightning Arresters for 500kV Substation in China

Corporate NameEstablished

PresidentHead Of�ce

MEIDENSHA CORPORATIONDecember 22, 1897Yuji HamasakiThinkPark Tower, 2-1-1 Osaki, Shinagawa-ku, Tokyo, 141-6029 Japan

Meiden Numazu Works

●Site area: 350,953 m2

●Major products: Power transformers, HV & MV switchgears, surge arresters, system equip-ment, computer equipment, relays, power conversion equipment, speed control equip-ment, electronic equipment

Meiden Nagoya Works

●Site area: 97,000 m2

●Major products: Electric components for forklifts, AGVs

Kofu Meidensha Electric Mfg. Co., Ltd.

●Site area: 50,900 m2

●Major products: PM motors, elevator motors, motors for industrial vehicles, brushless motors, induction motors

Meiden Ohta Works

●Site area: 174,000 m2

●Major products: Large- and medium-sized generators, large- and medium-sized motors, engine generators, induction heating-applied facilities, dynamometer-applied facilities, engine testing systems, small-scale hydro-power generating facilities, control equipment

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Meiden’s Production Bases in Japan

Company Name Meiden Zhengzhou Electric Co., LTD. (MZE) Founation September 22, 2004 Holding Company Meidensha Corporetion, Japan (RMB 30 million) Meiden Shanghai Co., Ltd. (RMB 10 million) Capital RMB 40 million Site Area 14,700 square meters Lines of Business Zinc Oxide Block Porcelain type metal oxide gapless surge arrester Metal oxide gapless surge arrester for GIS Location 87 HeHuan Street, Zhengzhou Hi-Tech industries Development Zone Zhengzhou, China Website www.meiden-mze.com Phone 86-371-5697-1960 Facsimile 86-371-5697-1981

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MZE Company Profile

MEIDEN ZHENGZHOU ELECTRIC CO., LTD (MZE) was founded in September 2004 as a Chinese plant of MEIDENSHA CORPORATION for surge arresters. Located in Henan Province, China, MZE manufac-tures a wide range of ZINC OXIDE BLOCK for surge arresters at a new factory equipped with up-to-date facilities. It’s production, technology, quality control and performance are based on Japanese know-how.

MEIDEN ZHENGZHOU ELECTRIC CO., LTD ISO9001 / 14001 Certificate

Available Test Items (IEC 60099-4) 1. DC Operating Voltage Measurement (V1mA-DC)2. Leakage Current Measurement at 0.75x V1mA3. Voltage Measurement for Commercial Frequency (Uref)4. Ir and Watt Loss Measurement at continuous operating voltage5. Partial Discharge Test6. Leakage Test

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Product Feature

Product Portfolio

Characteristics for MZE ZnO Block

Surge Arrester for GIS 0.51 0.48 0.46 0.61 0.57 0.57 Kct ( P2ct / P1ct )

0.66 0.64 0.63 0.75 0.75 0.75 Kct ( P2' / P1ct )

0.51 0.48 0.46 0.61 0.57 0.57 After 1000 hours data P2ct ( P.U )

0.66 0.64 0.63 0.75 0.75 0.75 After 50 hours data P2'ct ( P.U )

1.00 1.00 1.00 1.00 1.00 1.00 Initial data P1ct ( P.U )

No.6No.5No.4No.3No.2No.1Test specimen

Strong adhesion

High-gradient ceramics

Glass

Conventional type（200V/mm）

High-gradient type（400V/mm）

U1mA:9kV U1mA:9kV

22mm 45mm

DC accelerated ageing test results of MZE74A15D type blocksApplied voltage ratio : 85%

Environment: Air in oven at 115±4℃

AC accelerated ageing test results of MZE74AG23 type blocksApplied voltage ratio : 95%

Environment: Air in oven at 115±4℃

0 200 400 600 800 1000

Applied duration ( H )

0 200 400 600 800 1000

Applied duration ( H )

①

③

②

④

High current withstand capability & excellent lifetime characteristics:high-temperature sintering of side coating by double structure of high gradient ceramics and glass enables high adhesiveness. Can be used under oil, SF6, etc (high environmental resistance)

Applicable to both AC and DC system:we are the only manufacturer in China

High gradient type from 330 to 400V/mm is available:technology imported from Japanese mother company, Meidensha Corporation. Already commercialized.

Lifetime Characteristics:Excellent, highest life characteristics in the world. Deterioration factor is Kct<0.9 (i.e. less leakage current, no deterioration) at 1000H accelerated ageing test (115℃ -applied voltageratio 95%)

φ32-φ120 Zinc Oxide Block (Including high-gradient type)35-500kV Metal Oxide Surge Arrester for AC System1-500kV Metal Oxide Surge Arrester for DC System35-500kV Metal Oxide Surge Arrester for neutral point of TR66-500kV Metal Oxide Surge Arrester for GIS27.5kV, 55kV Metal Oxide Surge Arrester for Railway Systems3-20kV Metal Oxide Surge Arrester for generator/motor protection6-35kV Metal Oxide Surge Arrester for capacitor protection

A pioneer: Meidensha Corporation started development of zinc oxide (metal oxide) surge arresters in 1970 and made the �rst delivery in 1975 for the �rst time in the world. Since then, over 20 million pieces of zinc oxide blocks have been delivered to about 30 countries.

High reliability, broad lineup: Backed up with experiences, we offer the product in a variety of dimensions and performance - for distribution, substation and special use.

Metal Oxide Surge Arrester

0.00.10.20.30.40.50.60.70.80.91.01.11.2

Power consumption ( P.U )

No.4 No.5 No.6No.1 No.2 No.3

0.00.10.20.30.40.50.60.70.80.91.01.11.2

Power consumption ( P.U )

MZE Product performance

HA71-3174A As of May, 20142014-5ME（0.6L）1L

Solid-state Surge Arrester

Delivery Record : Lightning Arresters for 500kV Substation in China