breaker failure protection
61Distribution mangagement system — SCADA systems have been a part of utility automation for at least 15 years and contributing to the decision making process of the control rooms. However, majority of the existing solutions are closely related to distribution network data… …
62Thyristor — The thyristor is a solid state semiconductor device with four layers of alternating N and P type material. They act as bistable switches, conducting when their gate receives a current pulse, and continue to conduct for as long as they are forward …
63Electric shock — Electrocute redirects here. For the band, see Electrocute (band). An electric shock can occur upon contact of a human s body with any source of voltage high enough to cause sufficient current through the muscles or hair. The minimum current a… …
64History of private equity and venture capital — The history of private equity and venture capital and the development of these asset classes has occurred through a series of boom and bust cycles since the middle of the 20th century. Within the broader private equity industry, two distinct sub… …
65Labor spies — are persons recruited or employed for the purpose of gathering intelligence, committing sabotage, sowing dissent, or engaging in other similar activities, typically within the context of an employer/labor organization relationship.Some of the… …
66steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying …
67Ruhollah Khomeini — Infobox President honorific prefix= Ayatollah name = Ruhollah Musavi Khomeini birth date = birth date|1902|9|24|df=y birth place = Khomein, Markazi Province, Persian Empire death date = death date and age|1989|06|04|1902|09|21 death place =… …
68Harry Houdini — Houdini redirects here. For other uses, see Houdini (disambiguation). Harry Houdini Houdini in 1899 Born Erik Weisz March 24, 1874(1874 03 24) …
69Concrete saw — A concrete saw being readied for use. The man in the background is preparing the hose to deliver water to cool the saw, whilst the operator is moving the saw to the required position. A substantial engine powers the unit …
70Copper wire and cable — Copper has been used in electric wiring since the invention of the electromagnet and the telegraph in the 1820s.[1][2] The invention of the telephone in 1876 proved to be another early boon for copper wire.[3] Today, despite competition from… …
