Explanation/Annotation:To protect electric equipment of transformer station and ac networks hour
òîòîé 50 cycles from atmospheric and short-term commutation ïåðåíàïðÿ
æåíèé
Detailed model description:The active part of clippers consists of in series with
zno resistors with high linear voltage-current õàðàêòåðèñ
teak.
the internal cavity of tyre with resistors shall be filled in heat-conductive
composition.
the protective effect can be explained by the fact that in case of appearing of dangerous to iso
over-extension ëÿöèè elapsing through clipper the pulse current
because of high non-linearity of resistors shall not create dangerous to iso
ëÿöèè of voltage rise.
priority
- low protective level for all types of over-extensions
- high energy intensity
- enhanced resistance to effects
pollution
- explosion safety and seismic resistance
small sizes and mass
technical characteristics
class of network voltage, apartment. 6
maximum operating voltage, apartment. 7, 2
voltage on clipper, kW
20 minute. 8, 6
20 S.. 9, 5
1 S.. 10, 3
0, 15 S.. 11, 0
nominal discharge current, K.. 10
design current of commutation
over-extension at a wavelength of 30/60 usec, A.. 400
discharge voltage in case of
design current
switching overvoltage,
not more, apartment. 17, 3 |
