12kV 10kA ZnO Polymer housed Lightning Arrester surge arrester

Product Overview

Description

Chinese prices,  Japanese quality,

excellent service, full satisfaction

 

 

In General:

   Polymer housed distribution lightning arrester is mainly applicable for protection of the power equipment like transformers against system over-voltages and lightning surges. It is manufactured with excellent voltage-ampere characteristics and high level of reliability and durability. And the arrester is designed and type tested according to IEC60099-4 standard.

 

Features & Advantages:

1. Simple structure ,small volume,  light weight,  the whole mould with no gas gap

2. Polymer Housed with flexible silicone rubber, explosion-proof.

3. ZnO varistor as the core component is subjected to a series of physical and electrical tests to ensure the reliability and protective ability.

4. Creepage distance is big, hydrophobic good, be able to bear or endure corrupt ability strong, stable performance, reduce operation maintenance

 

 

Operating Principl:

 

   The metal oxide arrester provides the most advanced protection against over-voltage in the world,since MOA's resistors are made up of Zinc Oxide films.MOA has a good voltage-ampere characteristics as compared with silicon carbide arrester,it is Volt/Ampere characteristics is much superior and results in much better performance.

   A micro ampere level current flows while MOA is operating under normal voltage, but the amount of the current will be thousands amperes when MOA is subjected to over-voltage, because of MOA has a good non-linear characteristics. Hence MOA provide excellent prection for the HV equipment, especailly the transformers, cables and switchgear. 

 

Service Conditions:

1. Ambient temperature: -40°c ˜ +40°c

2. Height about sea level: ≤1000m

3. Power Supply frequency: 48-62 Hz

4. Earthquake intensity: Not exceed Richter 7.0 grade.

5. Maximum wind veiocity: ≤35m/s

6. The long-term power running voltage should not over the continus operating voltage.

7. The altiplano or Contaminated area should be indicated.

 

Main Technical Data:

 

Rated Voltage Ur, kV	6	9	12	15	21	24	36
MCOV, kV	5.1	7.75	10.2	12.5	17.0	20.0	30.0
Nominal Current In, kA	10
Cureent Withstand Capacity 4/10µs,kA	100
Cureent Withstand Capacity 2ms,A	250
Residual Voltage with 8/20 µs Current Impulse, kV	18	27	36	45	63	72	108
Residual Voltage at 30/60 µs Current Impulse, kV	16	24	32	40	56	64	96
Power Frequency Withstand Voltage (Wet 1min), kV	25	25	35	35	55	65	185
Max. Energy Discharge Capability kJ/kV-UC	2.1 Class1 (IEC 60099-4)
Creepage Distance, mm	335	450	550	550	750	850	1160
Length, mm	230	260	290	290	350	381	470
Arc Distance, mm	120	150	180	180	240	271	360

 

 

 

 

 

 

 

 

 

Dear client

 

 

 

          Thanks a lot for your interested in our products!

 

         If you have any question, please kindly contact me any time, we will work and respond ASAP.

 

        With our rich experience for exporting goods to our foreign clients, we will do our best to supply the strict design, perfect products, competitive price as well as good after-sale service to satisfy you!

 

 

 

       Best wishes for you!

       Morina Zheng