SU33603A1 - Electric meter - Google Patents

Description

The author's certificate Ms ZZOGOG describes an electric measuring device, the movable frame of which consists of two independent windings located in one plane and rotates in the inter-iron space having the same width along the path of movement of the frame. In order to obtain an uneven floor with a correct cylindrical surface of the cutout of the bashmak, the inner ring-shaped core covered by the windings has a different height (1 / t of rotation of the frame. The invention relates to the device of this device and that except , an additional frame that serves to return the moving system of the device to zero after the reference time.

The perspective drawing shows the proposed device.

Two parallel supports P, P are attached to the pole-mounted bitchmaks 5, S of the magnet of the device, between which frame g is rotatably fixed on the protrusion of the core K so that all or only part of the operating current passes through it. This frame is under the action of a SILB spring, not shown in the drawing, which when turned on the device returns

(202) ..

its initial position corresponding to the position of the frame r almost at a right angle to the power lines of the magnetic field. The arrow Z fastened to this frame moves along the scale Sc, graded in volts, and has a pin. The main mobile system has an arrow Z, located slightly below the arrow Z, and the scale Scj.

When the device is turned on, the arrow Zi can stop at any random position. Each time to return it to zero and the frame g serves. Once the current is interrupted, the frame g and the arrow 2Г will be spring-loaded in their initial position. The screw then grabs the arrow Zi and also translates it to zero. Therefore, after each measurement, the arrow Zi will be put in the zero position. On the Sc scale, you can put a maximum and a minimum for which the arrow Z should not pass when the device is in operation. This will make it possible to observe that the voltage varies only in certain acceptable limits. In order for these voltage fluctuations, the arrow Z is all the time, if possible, at the very end of the scale Sc, the field between the supports P, P is made uneven so that the part of the scale along which the arrow Z will move during voltage fluctuations not large and, therefore, the arrow Z does not interfere with the movement of the arrow Zj.

In order to obtain the maximum ratio of the torque to the weight of the moving system, according to the author, the windings of the frames are made so that the weight of the metal in their windings is from 33% to 50% of the weight of the entire system.

The subject matter of the invention.

1. The electric measuring instrument described in the author's certificate No. 3360, which differs

by applying an additional frame to return the movable system of the device to zero after reference, what frame is placed between parallel extension plates - / - attached to the magnet acting on the system in order to obtain a disproportionate deviation of the frame.

2. The form of execution of the characterized p.

3. Application in the device of the mobile system described in p., Characterized in that the weight of the metal in its winding is from 33% to 50% of its total weight.