UA22094A - Device for protection of three-phase electric motor from continuous overloads, open-phase fault and rotor breaking - Google Patents
Device for protection of three-phase electric motor from continuous overloads, open-phase fault and rotor breakingInfo
- Publication number
- UA22094A UA22094A UA96010039A UA96010039A UA22094A UA 22094 A UA22094 A UA 22094A UA 96010039 A UA96010039 A UA 96010039A UA 96010039 A UA96010039 A UA 96010039A UA 22094 A UA22094 A UA 22094A
- Authority
- UA
- Ukraine
- Prior art keywords
- electric motor
- polar condenser
- phase
- protection
- open
- Prior art date
Links
Abstract
The invention relates to electrical engineering. The device has current transformers, secondary windings are connected to respective three-phase bridge-circuit rectifier input, a function generator consisting of two parallel resonance circuits for double electric motor power frequency, and a polar condenser. The average points of parallel circuits are connected via diode and resistor with conductivity direction from a resonance circuit to the voltage distributor. The thermal contact of analog electric motor – polar condenser is a voltage distributor element. The threshold element is connected to a positive polar condenser input and outputs are connected to one actuating element terminal, a direct current electromagnetic relay coil, the second actuating element terminal is connected to a negative polar condenser output. The electromagnetic relay contact is used in the electric motor control circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
UA96010039A UA22094A (en) | 1996-01-04 | 1996-01-04 | Device for protection of three-phase electric motor from continuous overloads, open-phase fault and rotor breaking |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
UA96010039A UA22094A (en) | 1996-01-04 | 1996-01-04 | Device for protection of three-phase electric motor from continuous overloads, open-phase fault and rotor breaking |
Publications (1)
Publication Number | Publication Date |
---|---|
UA22094A true UA22094A (en) | 1998-04-30 |
Family
ID=74346665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
UA96010039A UA22094A (en) | 1996-01-04 | 1996-01-04 | Device for protection of three-phase electric motor from continuous overloads, open-phase fault and rotor breaking |
Country Status (1)
Country | Link |
---|---|
UA (1) | UA22094A (en) |
-
1996
- 1996-01-04 UA UA96010039A patent/UA22094A/en unknown
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