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High-leg delta (also known as wild-leg, stinger leg, bastard leg, high-leg, orange-leg, red-leg, dog-leg delta) is a type of electrical service connection for three-phase electric power installations. It is used when both single and three-phase power is desired to be supplied from a three phase transformer (or transformer bank).
Each stand of a tandem mill is set up for rolling using the mill-stand's spring curve [clarification needed] and the compressive curve of the metal so that both the rolling force and the exit thickness of each stand are determined. For mills rolling thinner strip, bridles may be added either at the entry and/or the exit to increase the strip ...
A capacitor whose value can be changed, by rotating a shaft, squeezing a plate or by an electrical signal; for example, as used to tune a radio. variable-frequency drive A power converter that varies the speed of an AC motor by changing its frequency; usually, today, a solid-state device. Variac
This is an accepted version of this page This is the latest accepted revision, reviewed on 21 January 2025. Device to open or close door Various examples of door handles throughout history A door handle or doorknob is a handle used to open or close a door. Door handles can be found on all types of doors including: exterior doors of residential and commercial buildings, internal doors, cupboard ...
A set of electrical wires and connections, forming part of an installation, between a distribution board and a fixed load, or between a distribution board and an accessory or daisy-chained set of accessories for connecting loads (sockets or light fittings), or between two distribution boards, enabling power to be provided.
Neck – A coaxial cylindrical extension of the shoulder with a threaded hole into which the cylinder valve or a gas pipe connection is fitted. [4] Boss – A sturdy insert, usually in the centre of the shoulder, into which a valve or gas pipe connection is fitted. [4] Base or foot – The end of the shell opposite the shoulder. [4]
There is little resistance to flow when the tap is fully open, but this type of tap rarely gives a perfect seal when closed. In the UK this type of tap normally has a wheel-shaped handle rather than a crutch or capstan handle. Cone valves or ball valves are another alternative. These are commonly found as the service shut-off valves in more ...
The relative density of a liquid can be measured using a hydrometer. This consists of a bulb attached to a stalk of constant cross-sectional area, as shown in the adjacent diagram. First the hydrometer is floated in the reference liquid (shown in light blue), and the displacement (the level of the liquid on the stalk) is marked (blue line). The ...