Nulljärjestustrafo tööpõhimõte
The basic principle of zero-sequence current protection is based on Kirchhoff's current law: the algebraic sum of the complex currents flowing into any node in the circuit is equal to zero. When the line and electrical equipment are normal, the vector sum of the currents of each phase is equal to zero. Therefore, the secondary winding of the zero-sequence current transformer has no signal output, and the actuator does not act. When the ground fault occurs, the vector sum of the currents of each phase is not zero, the fault current causes magnetic flux to be generated in the annular iron core of the zero-sequence current transformer, and the induced voltage on the secondary side of the zero-sequence current transformer causes the actuator to act, driving the The tripping device switches the power supply network to achieve the purpose of ground fault protection.
Abundant Fuses, tootesari hõlmab kõiki asjakohaseid uute energiasõidukite (pakett, PDU, BDU, elektrijuhtimine, mootor, MSD, madalpinge juhtmestik), laadimissüsteemi ja laadimismoodulit, fotogalvaanilist PV päikeseenergia harukarpi, fotogalvaanilist inverterit, UPS-i kõiki asjakohaseid valdkondi. toiteallikas, 5G side toiteallikas, BS UK pistik, elektriliste kodumasinate juhtpaneel, valgustusajami toiteallikas ja nii edasi.
Kui teil on pakkumise või koostöö kohta küsimusi, saatke meile e-kiri aadressil holly@delfuse.com