Dictionary of Electrical Engineering

Commonly used terms in the Electrical industry.

basic impulse insulation level (BIL)
a measurement of the impulse withstand capability of a piece of electric power equipment based on its ability to withstand 50% of impulses applied at the BIL voltage.
basic lightning impulse level (BIL)
the strength of insulation in terms of the withstand voltage crest value using a standard voltage level impulse.
a unit pulse.
See impulsive transient
impulse breakdown
a test of electrical insulation in which lightning or switching impulses are applied.
impulse generator
(1) an electronic device delivering single pulses of various shapes, preferably square.

(2) a high-voltage trigger generator.