RU94034396A - Device to protect field weakening resistors of locomotive traction motors from emergency currents - Google Patents

Device to protect field weakening resistors of locomotive traction motors from emergency currents

Info

Publication number
RU94034396A
RU94034396A RU94034396/11A RU94034396A RU94034396A RU 94034396 A RU94034396 A RU 94034396A RU 94034396/11 A RU94034396/11 A RU 94034396/11A RU 94034396 A RU94034396 A RU 94034396A RU 94034396 A RU94034396 A RU 94034396A
Authority
RU
Russia
Prior art keywords
field weakening
traction motors
relay
resistors
thermal
Prior art date
Application number
RU94034396/11A
Other languages
Russian (ru)
Other versions
RU2090387C1 (en
Inventor
О.И. Новиков
Original Assignee
Уральское отделение Всероссийского научно-исследовательского института железнодорожного транспорта
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Уральское отделение Всероссийского научно-исследовательского института железнодорожного транспорта filed Critical Уральское отделение Всероссийского научно-исследовательского института железнодорожного транспорта
Priority to RU94034396A priority Critical patent/RU2090387C1/en
Publication of RU94034396A publication Critical patent/RU94034396A/en
Application granted granted Critical
Publication of RU2090387C1 publication Critical patent/RU2090387C1/en

Links

Landscapes

  • Electric Propulsion And Braking For Vehicles (AREA)
  • Control Of Multiple Motors (AREA)
  • Protection Of Generators And Motors (AREA)

Abstract

FIELD: transport; automatic control devices for protection of control power circuits of traction motors. SUBSTANCE: device has current limiting resistor and relay element with break output contact. Novelty in design of device is than relay element can be furnished with thermal relay whose heating element is connected to resistor of first field weakening stage, and contact is made for mechanical locking in open position. Contacts of thermal relays which control field weakening resistors of electric motor shunt circuits are connected in series. EFFECT: simplified design, improved reliability.

Claims (1)

Технический результат изобретения - упрощение и повышение надежности. Устройство содержит токоограничивающий резистор и релейный элемент с размыкающим выходным контактом. Новизна изобретения характеризуется исполнением релейного элемента с возможностью использования теплового реле, нагревательный элемент которого подключен к резистору первой ступени ослабления возбуждения, а контакт выполнен с возможностью механической фиксации в отключенном положении, и последовательным соединением контактов тепловых реле, которые контролируют резисторы ослабления возбуждения тяговых электродвигателей параллельных цепей.The technical result of the invention is to simplify and improve reliability. The device contains a current-limiting resistor and a relay element with an opening output contact. The novelty of the invention is characterized by the execution of the relay element with the possibility of using a thermal relay, the heating element of which is connected to the resistor of the first stage of attenuation of excitation, and the contact is made with the possibility of mechanical fixation in the off position, and by a series connection of the contacts of the thermal relays that control the excitation resistors of the traction motors of parallel circuits .
RU94034396A 1994-09-16 1994-09-16 Device to protect diesel locomotive traction motor field current weakening resistors from emergency currents RU2090387C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94034396A RU2090387C1 (en) 1994-09-16 1994-09-16 Device to protect diesel locomotive traction motor field current weakening resistors from emergency currents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94034396A RU2090387C1 (en) 1994-09-16 1994-09-16 Device to protect diesel locomotive traction motor field current weakening resistors from emergency currents

Publications (2)

Publication Number Publication Date
RU94034396A true RU94034396A (en) 1996-08-10
RU2090387C1 RU2090387C1 (en) 1997-09-20

Family

ID=20160617

Family Applications (1)

Application Number Title Priority Date Filing Date
RU94034396A RU2090387C1 (en) 1994-09-16 1994-09-16 Device to protect diesel locomotive traction motor field current weakening resistors from emergency currents

Country Status (1)

Country Link
RU (1) RU2090387C1 (en)

Also Published As

Publication number Publication date
RU2090387C1 (en) 1997-09-20

Similar Documents

Publication Publication Date Title
RU94034396A (en) Device to protect field weakening resistors of locomotive traction motors from emergency currents
SU1120439A2 (en) Device for thermal protection of electric motor
JPH08508154A (en) Device for disconnecting a branch of a low-voltage network during a short circuit
SU1621117A1 (en) Device for protecting three-phase electric motor from emergency duty
RU2067346C1 (en) Electric motor overload protective gear
SU1393673A1 (en) Apparatus for controlling excitation current of traction generator
RU2030054C1 (en) Gear to protect three-phase asynchronous motor against break of phase
SU1573519A1 (en) Device for controlling three-phase induction motor
SU1325617A1 (en) Device for differential protection of electrical installation
RU9093U1 (en) DEVICE FOR CURRENT PROTECTION OF HIGH VOLTAGE CONSUMERS OF PASSENGER CARS
SU1158427A1 (en) Switch control device
SU1015465A1 (en) Electric motor protection device
SU985907A1 (en) Electric motor control device
SU965818A1 (en) Apparatus for protecting diesel locomotive against slippage
RU3058U1 (en) DEVICE FOR DIFFERENTIAL PROTECTION OF HIGH VOLTAGE CARS HEATERS
SU1117760A2 (en) Device for protecting three-phase power network against incomplete phase operation
RU23530U1 (en) THREE-PHASE LOAD PROTECTION DEVICE
RU2038688C1 (en) Device for load connection to power supply
SU1582316A1 (en) Reversing dc electric drive
SU966809A1 (en) Device for thermal protetcion of electric motor
SU838806A1 (en) Vacuum switch protection device
SU1053210A1 (en) Device for overheating protection of motor
SU1580481A1 (en) Device for protection of electric motor from emergency conditions
SU1181058A1 (en) Device for supplying power to three-phase induction motor in case of loss of phase of powering network
SU1162006A1 (en) Device for overload protection of electric motor