General rules of electrical installation design - Schneider Electric

DOWNLOAD :   http://www.schneider-electric.pl/documents/Polish_Catalogue/Technical/eig.pdf ...

Circuit breaker accessories - Service releases

Shunt opening release   This allows circuit-breaker opening by means of an electric command. Release operation is guaranteed for a voltage between 70% and 110% of the rated power supply voltage Un, both in AC and in DC. It is always fitted with an auxiliary limit contact.   Under voltage release   This opens the circuit-breaker due to a power...

Moulded case circuit breakers technical notes

DOWNLOAD :   http://www.mitsubishielectric.co.jp/haisei/lvs/downloads/pdf/tech/tech_e.pdf ...

IEC standards

IEC 60038 Standard voltages IEC 60076-2 Power transformers - Temperature rise IEC 60076-3 Power transformers - Insulation levels, dielectric tests and external clearances in air IEC 60076-5 Power transformers - Ability to withstand short-circuit IEC 60076-10 Power transformers - Determination of sound levels IEC 60146 Semiconductor convertors - General requirements and line...

Low voltage power distribution & electrical installation technology

DOWNLOAD : http://w3.siemens.co.uk/buildingtechnologies/uk/en/low-voltage/distribution-panel-boards/distribution-boards/Documents/Siemens%20ALPHA%20BS%20Sub%20and%20Final%20Distribution%20Catalogue.pdf ...

A hipot tester

A hipot tester is an electronic device used to verify the electrical insulation in a device or other wired assembly that could subject someone to a shock if it failed. It generally consists of:   1.            A source of high voltage, 2.            A current meter, ...

MILLIVOLT DROP TEST

The millivolt drop test is generally associated with testing for weld quality on the armature. It is the best test for verifying armature weld quality. The millivolt drop test is the ultimate electrical test for detecting bad welds. Unfortunately, it is difficult to make on armatures with large diameter wire and nearly impossible to make on armatures with small wires....