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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).
The most common three-phase system will have three hot legs, 208 V to each other and 120 V each to the neutral. An older, but still widely used, high-leg delta system uses three phases with 240 volts phase-to-phase for motor loads, and 120 volts for lighting loads by use of a center-tapped transformer; two of the phases are 120 volts to neutral ...
A three-phase motor is more compact and less costly than a single-phase motor of the same voltage class and rating, and single-phase AC motors above 10 hp (7.5 kW) are uncommon. Three-phase motors also vibrate less and hence last longer than single-phase motors of the same power used under the same conditions. [32]
The first drawing shows the high-leg to be L3 on the transformer. The high-leg is normally the B-Phase; an odd explanation is given as to why L3 is winding up (pun) as the B Phase on the panel: "By convention, the high leg is usually set in the center (B phase) lug in the involved panel, regardless of the L1-L2-L3 designation at the transformer."
Phases a, b, and c provide three-phase 240 V power; while phases a and c each provide single-phase 120 V power from the shared neutral n, or split-phase 240 V power between each other. Phase b is known as the "high" or "wild" leg, running at 208 V relative to neutral.
This movement has also been described as negative training. This "negative" movement is necessary to reverse the muscle from its initial trajectory. [1]When the load exceeds the force that can be developed by the muscle at a constant length, as in an eccentric muscle action, the exercise is referred to as involving negative work, because the muscle is absorbing energy.
The legs and glutes are the largest muscles in the body, which means you should exercise them — at most — every other day. It’s essential to give leg muscles a 24-hour rest period at minimum ...
Ballistic training, also known as compensatory acceleration training, [1] [2] uses exercises which accelerate a force through the entire range of motion. [ 1 ] [ 3 ] It is a form of power training which can involve throwing weights, jumping with weights, or swinging weights in order to increase explosive power. [ 4 ]