7 guide lines to correctly select circuit breaker

7 guide lines to correctly select circuit breaker  Selection of rated circuit breaker // The general procedure for the selection of correctly rated circuit breaker follows the following scheme of seven major questions you should answer: 1. What is the task of the branch circuit or feeder? Will it be used for the protection of connecting leads, protection of installation, group-protection or motor protection? Select the appropriate circuit breaker type, with or without the thermal overload protection. Decide which...

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Capacitive Voltage Transformers for HV Measurements

Capacitive Voltage Transformers (CVT) For HV Measurements 66 kV and upwards // Capacitive voltage transformers (CVTs) are used on higher voltage levels, starting from 66 kV and upwards. The type of the CVT is always a single-pole one, thus the connection is between phase and earth. The higher the voltage level is, the more price-competitive the capacitive type becomes. One of the advantages the capacitive type has, in...

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