SU1238191A1 - Resistive voltage divider - Google Patents

Abstract

The invention relates to the field of electrical measurements, in which voltage dividers are applied, made according to the circuit of the series connection of resistors or U-shaped links of them connected by means of current collectors with a fixed current to the water, connected to the output of a resistive divider ( RD). The purpose of the invention is to improve the accuracy and stability of the division factor, achieved by improving the shielding of the RD links and the stability of the contact resistances. The drawing shows the design of the taxiway, which soil / s 1chE with 00 HBMi: about rig. G UJ.

Description

holds the covers 1 and 2, the input (not shown) and output 4 connectors, the disk-shaped case 5, the cavities 6, the resistors 7 that are placed, the cylindrical cavity 8, the holes 9, the contacts 10 of the current leads (not shown) from the resistors 7, the isolator 13, spring loaded

The invention relates to electrical engineering, in particular, to measuring technology, where voltage dividers are used, made according to the series circuit of resistors or U-shaped links of them connected by means of current leads with a fixed current output connected to the output of the divider.

The purpose of the invention is to improve the accuracy and stability of the division ratio by significantly improving the shielding of the divider links and the stability of the contact resistances (which provides for less error).

The fig shows the device, the cut in figure 2 is the same, the view of the top 5s.

The resistive voltage divider contains (Figures 1 and 2) fitted with a 1m 2 roof, input 3 and output 4 connectors (connectors) and a metal disk-shaped body 5 that is partitioned from both sides, with one side in the cavity 6, the tori 7 are placed in a recession, and on the other side of which there are 8 cylindrical cavities around the central cylindrical cavity. 9 contacts of 10 current leads (not labeled) from resistors 7.

Metal jumpers 11 are located on one side of the housing 5 by holes 9 with contacts 10 and a central cylindrical open hole 8 in the radial channels 12 along the face of the housing 5, which are closed at the top by a cover 2. Under said cover 2 there are metal jumpers 11, each of them which is fixed in the insulator 13, provided with a spring-loaded rod 14 and a mechanism for moving it, containing fixed on the cover 2 -.

14, electromagnet 15, measles 16,

general casing 20, low-frequency connector 2.1. The proposed RD construction allows for an increase in the intertest period and a reduction in the cost of its maintenance. 1 h. nt fly, 2 ill.

0

15

20

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Electromagnet 15, the measles 16 of which rests on the spring-loaded rod 14: Each of. metal bridges 11 are parallel to the axis of the radial channel 12, are normally pressed to the cover 2 and have the ability to interact with one end with the contact 10, which is stationary, and the other end with the fixed output terminal 17 fixed in the central cylindrical open cavity 8 - re 18 and directly connected to the center conductor 19 of the output connector 4,.

The electromagnets 15, mounted on Kryshka 2, are covered with a common case 20, on which a low-frequency connector (connector) 21 is also attached to connect the electromagnets 15 to the source of control voltages.

The proposed device allows to increase the intertesting time interval, and thereby save money on the maintenance of dividers. KROP. Moreover, the proposed divider is easy to integrate into the automated System. Mu check.

Claims (2)

1. Resistive voltage divider, containing the input and output connectors of a metal disc-shaped housing with grooves, located on its face surfaces, and; Krsch, adjacent to them, the switching unit, and in the grooves made on one of the end surfaces of the case resistors are placed. And in the grooves of the opposite end surface of the case there are contacts of current leads from resistors located symmetrically with respect to the fixed output terminal. connected to the output connector and placed in the central open cavity of the case, made on the same face surface of the case, about that and with the fact that, in order to increase the accuracy and stability of the division factor, on the face the housing surfaces between the grooves with the contacts of the current leads from the resistors located in them and the central open cavity of the housing are made of radial channels, and in the adjacent cover over each radial channel there is a corresponding hole, and the switching unit It is made in the form of insulating sleeves located in the openings of the cover. each of which is provided with a spring-loaded spring, disposable iad with the outer surface of the crinkle, and a metal jumper located in the radial channel, located with the possibility of elastic interaction with or simultaneously interacting with the contact of the current lead from the resistor and the stationary output current of the central open body cavities 2. A voltage divider according to claim 1, characterized in that each metal bridge is provided with a displacement mechanism made in the form of an electromagnet, the measles of which is connected to a spring-loaded rod. Editor L.Povkhan Compiled by Y. Volkov Tehred O.Gortvay Proofreader M.Samborska. Order 3301/55. Circulation 631 Subscription VNIGOTI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab. 4/3 Production and printing company, Uzhgorod, st. Project, 4