RU2050661C1
|
|
Electric drive thyristor exciter
|
RU2070667C1
|
|
Method of automatic control of deep-well pump unit
|
RU2046536C1
|
|
Thyristor drive
|
RU2035816C1
|
|
Method of fast-action remote protection of d c or a c power line by instantaneous currents and voltages
|
RU2017253C1
|
|
Reversible electromagnetic switching gear
|
RU2046438C1
|
|
Electromagnetic commutational gear
|
RU2020625C1
|
|
Arc control chamber
|
RU2035110C1
|
|
Device for protection of power supply users of substation with motor load
|
RU2030056C1
|
|
Method of automatic switching on of stand-by power supply of users
|
RU2017307C1
|
|
Device for automatic switching-on of users' stand-by power supply
|
RU2033486C1
|
|
Electric iron
|
RU2009598C1
|
|
Device for automatic turning redundant power supply on at motor loading
|
RU2019848C1
|
|
Device for checking the operation of photoelectric limit switches
|
RU2017302C1
|
|
Gear for protection of power units of generator-transformer against faults to ground on high-voltage side
|
RU2041557C1
|
|
Power supply source of excitation winding of electric machine
|
RU2017301C1
|
|
Device for distance protection of network
|
RU2009592C1
|
|
Device for protecting generator-transformer units of power station against faults on the side of high voltage
|
RU2009593C1
|
|
Device for protecting three-phase motors
|
RU2006124C1
|
|
Method of phase failure and kind of fault detection on power transmission line
|
RU2040820C1
|
|
Electromagnetic relay
|