Hot Sale for Automatic Transfer Switching Equipment-FTQ2 for Berlin Manufacturer
Exterior and dimensions
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|Rated operational voltage Ue(V):||AC400V/50HZ|
|Rated operational current Ie(A):||20,25,32,40,50,63,80,100,125,160,180,200,225,315,350,400,500,630|
|Rated insulation voltage Ui(V):||690V|
|Operating position:||Normal power switch-on, backup power switch-on, Normal power& backup power switch-off|
|Rated controller Operating supply voltage:||AC220V|
|Under-voltage:||Adjustable from 160-200v,factory defaults:170V|
|Over-voltage:||Adjustable from 240-290V,factory defaults:270V|
|Operation Mode:||R:automatic change recovery,S:automatic change but not automatic recovery,F:Generator type|
|Switch-off delay time:||Adjustable from 0-180s,factory defaults:2s|
|Switch-on delay time:||Adjustable from 0-180s,factory defaults:2s|
For many installations the resistance of the earth electrode can be measured using an earth fault loop impedance test instrument.
This test is explained in the video. Further information is contained in Chris Kitcher’s ‘Practical Guide to Inspection, Testing and Certification of Electrical Installations’, p74-90, see link above.
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