PRESSURE PULSE SOURCE FOR TESTING HIGH-VOLTAGE OIL-FILLED ELECTRICAL EQUIPMENT FOR EXPLOSIVE SAFETY

摘要

The utility model relates to blasting cartridges intended for forming gases which produce a pressure pulse with specified parameters, and can be used for testing high-voltage oil-filled electrical equipment for explosive safety by means of internal short-circuits. The technical result of the utility model is an increase in the reliability of forming a test pulse of specified duration and amplitude. The pressure pulse source comprises a body (1), in the cavity of which the following are formed coaxially and successively: a charging chamber which consists of compartments (2) and (3) and is equipped with at least one blast initiator (4), a first passage (5) in the form of a Laval nozzle, and a second passage (6) which is cut off by a pressure-maintaining means (7) and communicates with a diffuser (8) attached to the body, wherein the body (1) is provided with a flange (9) for mounting on the electrical equipment (10) being tested, such that the diffuser (8) can be inserted into the latter. A gas-jet splitter (11) is mounted in the diffuser (8).