SU892514A1

SU892514A1 - Electromagnetic relay

Info

Publication number: SU892514A1
Application number: SU802912132A
Authority: SU
Inventors: Владимир Филиппович Зинченко; Валерий Павлович Будовский
Original assignee: Ставропольский политехнический институт
Priority date: 1980-04-17
Filing date: 1980-04-17
Publication date: 1981-12-23

Description

(54) ЭЛЕКТРОМАГНИТНОЕ РЕЛЕ(54) ELECTROMAGNETIC RELAY

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Изобретение относитс к электротехмике и может быть использовано в релейной защите и устройствах противоаварийной автоматики энергосистем.The invention relates to electrical engineering and can be used in relay protection and emergency control devices of power systems.

Известно электромагнитное рбле защиты, содержащее корь, вьтолнениый в виде качающегос лепестка, магнитопровод с рабочей обмоткой и шунт из ферромагнитного материала с обмоткой, размещенный параллельно корю 1.An electromagnetic protection is known, which contains measles, an exclamation in the form of a swinging petal, a magnetic circuit with a working winding and a shunt of ferromagnetic material with a winding, placed parallel to the measles 1.

Однако функциональные возможности реле узки, так как может использоватьс более щироко только в тех случа х, когда необходима лучив отстройка от апериодических токов.However, the functionality of the relay is narrow, since it can be used more broadly only in cases when it is necessary to adjust from aperiodic currents.

Наиболее близким к предлагаемому по технической сущности вл етс электромагнитное токовое реле, содержащее корь, выполненный в виде качающегос лепестка, магиитопровод с рабочей обмоткой и шунт из ферромагнитного материала с обмоткой, замкнутой на ключевой элемент, размещенный с зазором относительно полюсе магшгтопровода и параллельно корю.The closest to the proposed technical entity is an electromagnetic current relay containing measles, made in the form of a swinging petal, a magnetowire with a working winding and a shunt of ferromagnetic material with a winding closed on a key element placed with a gap relative to the pole of the magnetic conductor and parallel to the measles.

Реле обладает широкими функциональными возможност ми и позвол ет производить дистаншюнное изменение уставки 2.The relay has a wide functionality and allows remote setting change 2.

Недостатком реле вл етс то, что оно не позвол ет осуществл ть блокировку при значительных кратност х тока. Кроме того, реле потребл ет повышенную мощность в режиме блокировки.The disadvantage of the relay is that it does not allow blocking at significant current multiplicities. In addition, the relay consumes increased power in interlock mode.

Цель изобретени - обешечение блокировки реле при значительных кратност х тока, The purpose of the invention is to block the relay at significant current multiplicities,

10 снижение потребл емой мощности и более эффективное управление магнитным потоком реле .10 reduction in power consumption and more efficient control of the magnetic flux of the relay.

Поставленна цель достигаетс тем, что ре15 ле снабжено дополнительной обмоткой, замкнутой на ключеВсш элемент, котора размешена на магнитопроводе, причем управл ющие входы обоих ключевых элементов объединены.The goal is achieved by the fact that the switch is provided with an additional winding closed on the key of the All element, which is placed on the magnetic circuit, and the control inputs of both key elements are combined.

На чертеже приведена блок-схема реле.The drawing shows a block diagram of a relay.

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Claims

The relay contains a magnetic core 1, a main winding 2, an additional winding 3, a ferromagnetic shunt 4 with a curb of 5, measles b, (disconnecting elements 7 and 8. 3 The total magnetic flux F of the main winding 2 bridges between the core of a shunt with resistance and a core through active magnetic resistance R UA If F, is the magnetizing relay coil (harmonic component), R g is the active magnetic resistance of the gap between the main magnetic circuit and the ferromagnetic shunt, Xd is the reactive M 1гш1тное resistance of the additional winding, then the current in bark .6 dD with a small inductive resistance of the winding 5. Here W, is the number of turns of the winding 5; the co-frequency frequency of the periodic component of the relay; R c, is the active resistance of the winding 5, including the resistance of the key element. Joint consideration (1 ) and (2) shows that when R yi (winding 5 is open) and X and, Ф О (winding 3 is closed) and Ф р, all nojOK is closed through the ferromagnetic shunt, and due to its presence is small, which leads to a significant reduction in dispersion fluxes, and therefore, to improve the performance of rela at high multiplicity x current in the winding 2. At Ity, (closed winding 5) and (winding 3 open) p (winding 3 open) F -. R / .S + the magnetic flux in the cortex is maximal and equal to the total flux of the relay. The application of the proposed scheme allows more efficient control of the magnetic flux in the relay, since not only is its redistribution, but also its value is controlled. Claims of the invention Electromagnetic relay containing measles, made in the form of a swinging petal, a magnetic circuit with a working winding and a shunt of ferromagnetic material with a winding closed on a key element, located with a gap relative to the poles of the magnetic circuit and parallel to the measles, characterized in that, in order to ensure the lock to be blocked with significant current multiplicities, lower power consumption and more efficient control of the magnetic flux of the relay, it is equipped with an additional winding closed at the key element This element is located on the magnetic core, and the control inputs of both key elements are combined. Sources of information taken into account in the examination 1. USSR author's certificate number 587524, cl. H 01 H 51/30, 1976.

2. USSR author's certificate for application No. 2709557 / 24-07, cl. H 01 H 51/30, 1979 (prototype).