Pulse capacitors KPI and KPI1 are assigned for the working in electrophysical and technological installations in a pulse mode with frequency of recurrence of pulses up to 1 Hz. Capacitors are designed for the voltage of 5-200 kV and have the plastic cold-resistant case. Capacitors can work both in vertical, and in horizontal positions. Application of voltage in reverse polarity in the capacitor at the discharge on loading no more than 10 %. The design life of the capacitor specified in the table, corresponds to such type of the discharge, at probability of the non-failure operation equal 0,90. However capacitors can successfully operate an obvious presence of the oscillatory character of the discharge. In this case for preservation of a design life it is necessary to reduce charge voltage. Characteristics of capacitors KPI and KPI1 type are given in tables 1 and 2. The appearance and overall dimensions of capacitors KPI are shown in figures 1 and 2, and appearance and overall dimensions of the capacitors KPI1 are shown in figures 3 and 4.
Limiting climatic influences
The rating value of the climatic factors on Russian ÃÎÑÒ 15543-70 and ÃÎÑÒ 15150-69, in particular, importances of temperature are in a range from + 1 to + 35°Ñ.
Environment is unexplosive, free of dust with small resistance and aggressive gases in concentration decreasing the parameters of the capacitor in inadmissible limits.
Limiting mechanical influences
The capacitors can stand the influence of vibrating loadings in a range of 5-200 Hz frequencies with the amplitude of 0,5 mm and acceleration 19,6 m/s2; influence of shock loadings with acceleration 147 m/s2 and duration of impact 5-10 mc.
The capacity of pulse capacitor may to deviate
from nominal at 10 %. In the table shown internal inductance
of capacitor, i.e. without the inductance of connections.
The max. current of pulse capacitor is 100 kA. The resource is shown
for the case, when it discharges to the load with the max.
voltage reverse not more 10% and the ambient temperature +20
°C. When the service conditions deviate from one are shown
in the table, resource may be calculated by the formula: N
where N0 - nominal resource; K1, K2,
K3, K4 - a longevity coefficients, which
determine with the aid of curves, are shown in the Fig. (
3 ), (
4 ), (
5 ), (
:: more details of pulse capacitors >>>