FIELD: electric drive control systems, thyristor converters, relay protection regulators and measuring elements. SUBSTANCE: ac measuring transducer has magnetic core 1 made of nonretentive material and carrying input winding 2 and secondary winding 3; it also has two operational amplifiers 4, 5, two resistors 6, 7, and capacitor 8; connected to output 9 of transducer are output of operational amplifier 4 and first lead of resistor 6 whose second lead, inverting input of operational amplifier 4, and first lead of resistor 7 are collected to first lead of secondary winding 3; second lead of resistor 7 and first lead of capacitor 8 are connected to inverting input of operational amplifier 5 whose output is connected to second lead of capacitor 8 and noninverting input of operational amplifier 4; second lead of secondary winding 3 and noninverting input of operational amplifier 5 are connected to common bus of transducer. EFFECT: improved design. 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ALTERNATING CURRENT TRANSDUCER | 1994 |
|
RU2084905C1 |
| RECTIFIER THAT MEASURES VOLTAGE LEVEL | 1992 |
|
RU2035046C1 |
| MEASURING TRANSDUCER OF ALTERNATING CURRENT | 0 |
|
SU1812513A1 |
| INSTRUMENTAL TRANSFORMER OF ALTERNATE CURRENT | 2006 |
|
RU2328002C1 |
| SMALL CURRENT METER | 0 |
|
SU1638647A1 |
| METHOD OF DETERMINING INPUT RESISTANCE OF CHARGE AMPLIFIER AND APPARATUS FOR ACCOMPLISHMENT OF SAME | 0 |
|
SU1205060A1 |
| ELECTROMETRIC CHARGE CONVERTER | 0 |
|
SU1422163A1 |
| DC SENSOR WITH ISOLATION | 2012 |
|
RU2511639C2 |
| DC SENSOR WITH ISOLATION | 2012 |
|
RU2528270C2 |
| ELECTROMETRIC WEAK CURRENT AND SMALL CHARGE TRANSDUCER | 0 |
|
SU1656470A1 |
