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SS3G channeling electric locomotive car database Analysis


Source plug-in using pulse width modulation (PWM) technology required for electronic cabinet after the output of _ +24 V voltage, so the OCS can cause interference when the interference of electronic switching power supply cabinet. In the commutation electric locomotive pantograph and catenary intermittent contact, start, lifting the bow, etc., due to the instantaneous power current mutation, could easily lead to spikes and high harmonic interference Science and Technology from 2006 No. 26 of the total stack of anger]】 V. 2, one hundred and eleven 5: The ratio of [2 - a j-~ t V161/_J. v1630V a r1] one by one based J § 『] Mexico - \ Ken n Xi hopane [LJ [- Plant 1 _1 Figure 2 pulse amplification circuit caused by mains voltage fluctuations in the exchange rate or peak moment. Fluctuations in electric power grid will claw 110V AC power supply unit on the side of the sine wave frequency may be on the kV peak voltage, DC power supply is usually transient disturbance attenuation is relatively weak, so when his car pantograph bow down or off the main circuit breaker when the power voltage due to electromagnetic interference caused by the vehicle electronic counter ~ 24V power supply transient voltage mutation. Figure 2,[link widoczny dla zalogowanych], although Vl60 off, due to the power of T disturbance,[link widoczny dla zalogowanych], V161 and V162 base receive a higher potential, the V161 conduction, Vl62 V163 turn after the closing of the thyristor trigger pulses are turned on. Causing channeling locomotive cars. Based on the above analysis that the root cause of failure channeling car system itself due to poor resistance to electromagnetic interference T. 3 improvements to avoid the channeling car trouble, there are two ways to solve: a full operating when the attention of a J standard operation, focusing on high-pressure test to prevent the locomotive f1 pick 24) ● towels Science and Technology of the total in 2006 greatly reduced the first 26 bending deformation of the connection, to avoid the very question connected cracks, eliminating a major quality problems; through supporting the connection between the fixed pole ring, the force to improve the connectivity, enhance the connection strength and stiffness, very help improve the reliability of turbine operation. Improved connection between the very structure of production in our factory 201 series, JF204 Series, JF210C salient pole generator switch on the application of good, but there has not been very question the quality of the connection breaking down inter-related accidents in Figure 4 pole Improvement of structure IV line, the conclusion pole coil connection structure improved to enhance the overall production of the original connection, because the bending deformation of materials, a major crack formed, cut off the connection very question is an important source of breaking down , except for a hidden quality problems; most asked banding connection with the fixed,[link widoczny dla zalogowanych], enhanced r it (on the next page 21) inspection, the locomotive near the bow down operation of a vehicle caused by channeling; second is to improve electronic counter the ability of anti-high-frequency electromagnetic interference . Many locomotive depot in the course of basically using J,[link widoczny dla zalogowanych], the former method can not fundamentally solve the fault, and the operation will cause little attention channeling car. If the cars are often caused by channeling short protection times, may lead to shift the main transformer winding deformation, fracture line, ultimately damaged the main transformer, the consequences will be very serious. Therefore, only the anti-interference ability to improve electronic cabinet in order to fundamentally solve the problem. Figure II analysis shows that electromagnetic interference in a fierce and a 24V supply voltage transient mutation, the V163 turns on a trigger pulse. To avoid electromagnetic interference, as long as a 24V power supply high-frequency interference signal after filtering through the capacitor to ground to prevent the V163 can be misleading links. Pulse amplification in an electronic cabinet board 1dbz32 (power supply to 0V) and 2dbz2 (power-24V) of a filter capacitor between the parallel, high-frequency signals when the signal to pass in time without affecting pulse trigger circuit. In the first experiment, a 220pF capacitor in parallel after the channeling strength and stiffness,[link widoczny dla zalogowanych], greatly improving its force, removing the very question of the manufacturing defects due to their own connections and mechanical vibration caused by the original Gang broken down, to avoid breaking machine possibility. Suggest that in future turn salient pole synchronous generator connected between the coil design of a very appropriate considering the improved structure. Car breakdown have not been eliminated, and finally capacitor to 0.1F (model 104J400V) after the failure to eliminate. Electronic counter pulse amplification by the modified plug-in board to effectively prevent the SS due to interference caused by electric locomotive channeling car trouble, to completely eliminate the quality problems of locomotive make up the juice on the Gai Xingji car design defects, but also for the future interference problems to deal with similar reference. Balcony locomotive is currently good, judging from the locomotive transformation is successful.
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