patents.google.com/patent/CN202309058U/zh Chinese machine, description in CHINGLISH Chinces version ....Pois nao e muito intersante, mais....本实用新型提供一种压敏能耗制动保护电路，在能耗制动接触器的触点两端的连接点上并联加装压敏电阻，并与能耗制动接触器的能耗制动电阻串联，再与连接能耗制动接触器的电路中电机的电枢并联连接成压敏能耗制动保护电路。本实用新型有益效果是该电路根据所保护电机的额定电压及额定电流参数所选择的浪涌抑制型压敏电阻器而构成8-20μs纳秒一瞬时独立闭路循环的压敏能耗制动保护电路。与系统的其他操作程序不产生任何的偶合操作关系，直接解决了轧钢轧卡堵转时随机上升的电感电势对电机续流的损害，使其能耗制动的安全性和稳定性达到100％。安全可靠、设计合理成本低作用大，可降低设备故障率80％，降低设备维护费用，提高运转率，有利于优化保护措施延长电机的使用寿命。

Agora em Chinglish como diz Nick. Provided is a pressure-sensitive energy consumption brake protection circuit, characterized in that: the connecting points at two ends of an contact of an energy consumption brake contactor are provided with a pressure-sensitive resistor in parallel connection; an energy consumption brake resistor of the energy consumption brake contactor is serially connected with the circuit; and an armature of a motor in the circuit connected with the energy consumption brake contactor is connected with the circuit in parallel, thereby forming the pressure-sensitive energy consumption brake protection circuit. The utility model selects a surge inhibition type piezoresistor based on the rated voltage and rated current parameters of the to-be-protected motor to form a pressure-sensitive energy consumption brake protection circuit with an instantaneous independent closed cycle of 8-20 microsecond nanosecond. The pressure-sensitive energy consumption brake protection circuit produces no coupling operation relationship with any other operating program, and directly removes the damage to the motor follow current resulting from the inductance potential increasing with the motor amid the steel and card rolling blocking process, thereby improving security and stability of the energy consumption brake to 100 percent. The pressure-sensitive energy consumption brake protection circuit features security, reliability, reasonable design, low cost, and great functions, and is capable of reducing 80% of the device fault rate, cutting down device maintenance expenditure, raising running rate, facilitating the protection measures, and prolonging the service lifetime of a motor.

Supplied alternate version supplyied by Chinese inventor, text probably is Traductio Assitee Ordinateru, c'est vraiment Mt, Trans assisted by coputer, MT .google.com/patent/CN202309058U/en Application CN2011203720294U events
2011-09-28
Application filed by Tianjin Pipe Group Corp
2011-09-28
Priority to CN2011203720294U
2012-07-04
Application granted
2012-07-04
Publication of CN202309058U
2021-09-28
Anticipated expiration

POSSIBLY of INTERESt *****Hot-rolling mill **** is different with cold-rolling mill, and the cold-rolling mill load is more level and smooth, and the*** impulse current of hot-rolling mill *****is bigger, faults such as ***emergency shutdown stall tripping operation*** often occur, and the**** burn commutator*** is inevitable.Be homemade now or the dynamic braking mode of the main transmission of external import all is this process control like Fig. 1.Powerful surge inductance electromotive force (back electromotive force) maximum can reach specified 1.5-3 doubly when high rotating speed, high capacity**** emergency shutdown**** or stall.Its protection system all will be passed through system protection and is transferred to the dynamic braking contactor again to auxiliary relay again to the program ***control tripping operation**

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Note added at 8 hrs (2023-07-26 03:42:20 GMT)
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LINKS https://patents.google.com/patent/CN202309058U/zh
https://patents.google.com/patent/CN202309058U/en