Schiaramento/annotazione:For protection against atmospheric overvoltage of electric equipment insulation
alternate current by the frequency 50 - 60 Hz
Descrizione del marchio dettagliata:For networks with any system of neutral grounding (15,
20, 35 kW) are being manufactured and for networks with effectively earthed neutral (33, 66, 110,
132, 150, 220 kW).
consist of one or several standard cells, each of
which covers the bloc of multiple spark gap and working cut
èñòîðû. The multiple spark gap is in series with r
áî÷èìè resistors, is closed by the hermetic armoured case and has been squeezed control gear
æèíîé. The spark gap column is closed by the lid, protecting the top end electric
åìåíòà from atmospheric precipitations. The phase lead of high-voltage line
is being switched to contact plate in the lid, and the grounding lead
_ to bolt of steel base plate directly or through ðåãèñòðàò
the outdoor switchgear of operation. To lid of upper element of spark gaps on nominal
voltage 110 kW and higher is fastened shading ring.
technical characteristics
nominal voltage, apartment. 20
greatest permissible
voltage on spark gap, apartment. 25
breakdown impulse voltage
in case of limit discharge
time from 2 to 20 usecs, apartment. 80
mass, kg. 58
overall dimensions, (height), MM. 960 |
