Editing Dynamic braking (section)

== Plug braking ==
A third method of electric braking is plug braking or 'plugging', under which a reverse torque is applied for a short time. It is the most rapid form of electric braking, but comes at the disadvantage of applying significant transient stresses to motors and mechanical components. It is typically abrupt and 'jerky',<ref>{{Cite web |title=What is plugging for electric motors? |url=https://www.motioncontroltips.com/what-is-plugging-for-electric-motors/ |access-date=2024-02-10 |website=www.motioncontroltips.com}}</ref> the braking equivalent of a 'jog' in forward motion, and plug braking is never applied in electric traction applications. Nonetheless, it has been applied widely to applications such as long-travel and cross-travel drives of direct current and alternating-current powered [[Overhead traveling crane|overhead traveling cranes]]; hoist drives on such cranes typically use rheostatic braking. Reversing drives with (intentional) plug braking typically use rheostatic control for acceleration, and always have resistance in the motor circuit, when plug braking is applied, to limit the reverse (braking) torque. Plugging is usually achieved by moving the controller, briefly, to the first step of the opposite direction, and then back to the off position. After zero speed is reached, plugging must cease to avoid the drive running in reverse, and this function may be provided automatically, by a 'plugging relay'. Plugging does not fit well with inverter-controlled drives; it is becoming less common, and it is actively discouraged in modern crane operation.<ref>{{Cite web |date=2017-12-12 |title=Overhead crane terminology {{!}} Konecranes |url=https://www.konecranes.com/discover/overhead-crane-terminology |access-date=2024-02-10 |website=www.konecranes.com |language=en}}</ref><ref>{{Cite web |date=2018-10-02 |title=What is the impact of crane plugging? {{!}} Konecranes |url=https://www.konecranes.com/discover/what-is-the-impact-of-crane-plugging |access-date=2024-02-10 |website=www.konecranes.com |language=en}}</ref><ref>{{Cite web |last=Dunville |first=Larry |date=10 July 2003 |title=Six dangerous misconceptions about crane safety |url=https://www.thefabricator.com/thefabricator/article/safety/six-dangerous-misconceptions-about-crane-safety |website=The Fabricator}}</ref>