SU112796A1 - Reactor Tester - Google Patents

Description

To test the reactances by comparing the tested resistance with the reference one, devices made in the form of an unbalanced alternating current bridge are used, in the shoulders of which the compared resistances are inserted. However, the process of testing with the help of known devices of this type is very complicated and leads to significant deadliness caused by fluctuations in the threading voltage.

For |; translations of the indicated deficiencies, it is proposed to apply two exemplary resistances, one of which is larger and the other is less than the set nominal. The suitability of the resistance to be tested is determined by the change in the direction of the indicator deviations when the two reference resistances are connected in turn.

The drawing shows the electrical circuit of the proposed device.

The device is made in the form of an alternating current bridge, in one of the arms of which the test resistance is enclosed. Another pressure is the same exemplary resistance 2. The bridge is equipped with a switch .3, allowing you to change the magnitude of the reference resistance.

At each position of switch 3, not one but two exemplary resistances are included in the bridge circuit, one of which is larger and the other is less than the set nominal. This makes it possible to refuse to measure the tested resistance in magnitude and is limited only to checking the direction of the indicator from alternatingly connecting both resistances to the | Bridge circuit. When using the specified method,: both voltage changes of the network supplying the unbalanced AC bridge do not create measurement errors.

A phase detector 4 and a magneto-electric galvanometer 5 are used as an indicator of the bridge. To limit the current flowing through the galvanometer, the most unbalances of the bridge are applied

shunt, constituting on one; 1yin x resistances, in particular, from copper hydroxide rectifiers 6, including pairs in pairs towards each other.

Rectifiers 6 are included in the scheme of a separate bridge, to the diag ():; m11 of which is attached a galvanometer) 5.

An indicator is used to set the indicator zero. 7. The zero output is performed by the non-switch. H 8 in io; c} ke1: ee “1 control. 1 after setting zero n. Switch. 8, do not switch ;; Attachment “check and start work.

The power supply of the bridge is carried out from a transformer 11a 9 and a source of high-voltage 10.

 switch // change the frequency of the epg.rena with a non-switch (ixviervi), which simplifies the operation of the device.

11ределет из 6 р с тен Н and

The device is equipped with a reactive pathway by way C} a; 5iic of the controlled resistor1P-1Ya with this, which is a type of iuraviche1N ac bridge, in which it is; ; Yod 1s sravnit; 5ae1 Blee sotropplep, otlpchaechaetsya the fact that, with not a single grip; grop.eg: ea checks and disagreements) sop) out of sight, one of which is sick, and the other less than 1; s, the face value is nominal so that it can be determined; part P1) the side of the tested resistance to measurement of the direction of the peddler in case of slash .locheppn obop -the strond resistance.