SU1319107A1 - Ferreed - Google Patents

Abstract

The invention relates to electrical engineering, namely to switching technology, and is intended for switching electrical circuits of automation systems. The aim of the invention is to simplify device control and increase reliability. A ferride consists of sealed magnetically controlled contacts with a memory — gazakon, three control ush, their windings and a ferromagnetic shunt. Two of the mentioned control windings located on different halves of the flasks of the hexagon, wound according to and connected in series, ensure the activation of the hexagon. The third control winding is wound in opposite direction and is connected in parallel with the gezacon in parallel to the second winding in the release process. The connection scheme of the components of the ferride makes it possible to turn on and off the load under the influence of unipolar control pulses. Structurally, a ferride is a complete module with leads for supplying control pulses and connecting the load and its power source. 3 il. i b CO CO

Description

The invention relates to electrical engineering, and more specifically to switching technology, and can be used in automatic control, monitoring, measurement and communication systems of various branches of technology as a pulsed electromagnetic switching device with a memory controlled by short-term single-field control. pulses (for example, a trigger with a counting start).

The aim of the invention is to simplify device control and increase reliability.

FIG. Figure 1 shows a diagram of ferride on a single jackana for switching the load from a direct current source: FIG. 2 - the same, on two gezacons; in fig. 3 - cyclogram of functioning.

The device in accordance with {FIG. 1 and 2) consists of a gezacon G (two gezacons Fi and G2), on which are placed control windings Wi, Ws, Wa, and a ferromagnetic shunt of LW. The ferromagnetic shunt MSH is installed in the zone of overlapping contact parts of the gezacon. The control windings W :, W2 are located on two different halves of the flask of the gezacon (group of gezakon) and are connected in series and according to (the end of the first winding Wi with the start of the second W2). The control winding W.-j is located on the side of the winding W2. The beginning of the winding Wa is connected to the end of the winding W2 and they are jointly connected to the negative input terminal, the beginning of the winding Wi is connected to the positive input terminal, the common point of the windings Wi and W2 is connected to one contact part, the other contact part is connected to the end of the winding W3.

The ferride is controlled by short microsecond rectangular pulses with intervals between them longer than the response time of the gezaquons.

The number of turns of winding Ws is greater than the number of turns of winding W2 in K I times, where K

 2 (1JT-); return rate

Kz is the safety factor for tripping. In the process of tripping, a current passes through two windings Wi and W2, the MDS of which FI and p2 respectively act according to. The total MDS of both windings is Fp Fi + F2. provides magnetization of contact parts of gezaquons and their triggering

F ,, Fi-f F2 KaFcp I (Wi-W2).

In case of equal numbers of turns of the windings Wi W W we have

Fp K5Fcp 2IW

During the release process, a current pulse flows through the three windings Wi, W2 and Wa. In this case, the MDS FI winding confirms the magnetization of its contact part of the geckack (contact part on which it is located

0

0

0

put), MDS windings W and /, directed opposite to each other, provide the remagnetization of their contact details, since MDS RZ windings W.s are larger than MDS F2 windings W2.

F3 F2, IW: C IWv. since W: j W, .. Then the MDS off-scan FOTM is FOT ,, Fi-f F., -Fj I (W, + Wz-Wn), taking into account Wi W2 W and W2 KV / 2 KW with K 1 we have

Fo: ,, 1W (2- K)

It is known that . return rate, then, substituting the last relation in FOTM and expressing K, get

, / about „2IWKBKB.

K 2 - LiG- 2 --1 2 (1-)

Thus, the coefficient K, which characterizes the ratio of the numbers of turns of the windings W2 and Wij, is determined by the specified K and Kz and lies within the limits of K (1.2-2).

The device works as follows.

In the initial state, the windings are de-energized, the contacts of the gezacon (gezakon) are open, the load R is switched off (Fig. 3). The first control pulse iyi, arriving at the input of the device, passes from the positive terminal along the windings Wi and W2 to the negative terminal. The windings Wi and W2 develop MDS Fi and 1-2, which, according to action, magnetize to saturate the contact parts of the gezacon, ensuring their operation. A contact closure occurs and the load R is switched on (Fig. 3). In this case, the winding Wa is connected in parallel with the winding W2. This state is stable until the next control pulse. The second control pulse iyi from the GI passes through the winding circuit Wi and W2 and in parallel through the closed contacts of the gezacon to the winding Wa. The magnetizing force FI of winding W confirms the magnetized state of the contact details of the gezacon (gezakon groups) on which it is located. The resulting magnetizing force Fa-Fv of the windings W: j and W2 re-magnetizes its contact-part (contact-part) of the gezacon. The ends of the contact parts in the zone of the working gap are magnetized simultaneously, which leads them to opening. The device returns to its original state, and the load RH is provided (Fig. 3). Further, the cycles of operation are repeated.

Claims (1)

Invention Formula A ferride containing at least one gezakon, a ferromagnetic shunt installed in the contact overlap zone, and three controls; 115 :; windings, the first winding located on one half of the gezacon, and the second and third wound in parallel on the other half of the gezacon, characterized in that, in order to simplify the control of the ferride and increase reliability, the beginning of the first winding is connected with the positive input terminal, the end of the first winding is connected to the beginning of the second winding and one contact part of the gezacon, the end of the second winding is connected to the beginning of the third and negative output terminal, the end of the third winding is connected to another contact part of the said gezacon. however, the number of turns of the third winding bo.-1she number of turns of the second in (1 -) i l 1 times where / (in - the return coefficient and f. the safety factor but MDS. FIG. 2 Compiled by V. Chncheryukin Tehred I. Veres Corrector L. Demchpk Circulation 698 Subscription VNIIPI USSR State Committee on Affairs and: i) Brest and Discoveries 1 13035, L Oskva, Zh-35, Raushsk nab., 4, 5 Production and Full-Graphic Enterprise, Zh., Ul. Project, 4