Frequency wind energy earthing switch JNH18 Series

Simple structure and lower installation height. It is suitable for F-C network double-deck cabinet, single-deck cabinet and double-deck cabinet, frequency converter cabinet, wind energy, etc. with compact structure and narrow space.



Frequency wind energy earthing switch JNH18 Series



Rated Voltage  ( kV)

Thermal Steady Current (KA)

Thermal Steady Time(s)

Dynamic Steady Current ( KA )

Short Circuit Making Current ( KA )

Phase Distance (mm)

3.6

15

3

37.5

37.5

90

7.2

20

4

50

50

150

9

15

3

37.5

37.5

120

12

20

4

50

50

170


Environmental conditions

Ambient air temperature

+60℃ to -30℃,daily temperature difference: 30℃.(Actually upon the temperature of insulators)

Relative humidity

<90% (daily mean)

Seismic intensity

No higher than 8

Altitude

No higher than 1000m (if the product is to be used in plateau, please make a note in the order).

Places without fire or explosion hazards, or heavy dust, chemical corrosion or violent vibration.


Operating Interlock Machanism

Production Capacity 


1.Annual Capacity: 30000 earthing switches

2.Over 30 machines,like CNC lathe, CNC milling machine, CNC bending, Automatic welding machine, Punching, Shearing machine etc

3.All kinds of Inspection Equipments:

switch mechanical characteristics tester, rockwell hardness tester, automatic spring tension and compression tester, circuit resistance tester, eddy current conductance tester, multifunctional electrolytic thickness tester, salt spray test and others

Professional research and development, strict inspection, perfect after-sales service.


Patent 



Workshop 


Partner 





Jiangshan Electrical Technology Development Co., Ltd.,Founded in 1994,focus on grounding switch,Isolation switch,Transmission gear R&D and production.Science & Technology Enterprise of Zhejiang Province,13 Patents for Utility Models,2 Patents for Invention and 2 Patents in USA.Accumulated lots of experience in R&D and Quality Control which earned us a good reputation within the market. Professional research and development, strict inspection, perfect after-sales service.



Product Tags indoor ground          ground switch          indoor cricket ground          indoor playing ground          indoor play ground          indoor football ground          indoor play grounds          light switch no ground          plug in switch with ground         

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