The invention discloses a power supply harmonic treatment device for a traction substation of an electrified railway. The device comprises a bipolar circuit breaker, a current transformer, a lightningarrester, a first capacitor, a second capacitor, a first electric reactor, a second electric reactor, a first resistor and a second resistor which are connected in sequence. The first capacitor, thesecond capacitor, the first reactor, the second reactor, the first resistor and the second resistor form a second-order passive filter. In this way, higher harmonics received by the contact network orthe positive feeder from the electric locomotive can be filtered by the second-order passive filter and do not enter the transformer in the substation any more, so that adverse permeation to a low-voltage power distribution system in the substation is avoided, and damage to low-voltage electric equipment in the substation is avoided.
本申请公开了一种电气化铁路的牵引变电所所用电源谐波治理装置,该装置包括依次连接的双极断路器、电流互感器、避雷器、第一电容、第二电容、第一电抗器、第二电抗器、第一电阻和第二电阻。以上第一电容、第二电容、第一电抗器、第二电抗器、第一电阻和第二电阻构成二阶无源滤波器。这样接触网或正馈线从电力机车接收到的高次谐波就会被二阶无源滤波器滤除,不再进入所内变压器,这样就不会对所内低压配电系统产生不良渗透,从而避免了对所内低压用电设备的损坏。
Power supply harmonic treatment device for traction substation of electrified railway
一种电气化铁路的牵引变电所的高次谐波治理装置
2020-10-30
Patent
Electronic Resource
Chinese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES |
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