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faraday cage of HV transformer PD test
faraday cage of HV transformer PD test
Application:
HV test shielding room  (faraday cage) are Widely used in power cable, transformer, transformer switch, transformer substation and other High voltage levels of partial discharge test or impulse test.

Technical parameters:  
Ø Faladay cage Size: 17.5m×7.5m× 6m(height)
Ø Control room : 3m×2m×3m
Ø Motor driven airtight swing door :2.5×2.5(H)m ,upper transmission
Ø Shielding and grounding of Faraday Cage: it is a 6 surface shielding body,overall electrical connection among these 6 surface,multipoint grounding of main body.
Ø Efficiency after electromagnetic shielding  (to meet requests for PD testing )
     0.5~1.6MHz    ≥60dB;
Ø Background noise:< 5PC
Ø Grounding resistance of grounding electrode: < 0. 5Ω (by B&D ready )
Ø There are 6 air-vents on top of roof.
Ø There is a switch box in cage but at one meter above ground.
Ø There are 9 lighting on roof,its illumination will be morn than  250lks at one meter above ground.
Ø Power supply into Faraday cage will be equipped filter.
Ø About ground connection wire :indoor ground copper bar
Ø Surface of Main body will be galvanized sheet and electrostatic
Ø spraying on surface.its craft and material meets China national standard.
Ø To meet the requirements of design and maintain,steel sheet split mounting type structure will be adopted.
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