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本试验台可用于磁电式仪表的充磁、机车电流表的校验,此外还设有110V、24V、12V、6V电源,可供有关电器仪表的试验之用。图1为试验台原理图,其电路互为联锁,安全可靠,操作方便。一、充磁磁电式仪表使用日久和多次拆装,修理以及外界磁场干扰、高温、振动、撞击等等,都能破坏磁畴有规律的排列,从而磁场被减弱,表头灵敏度下降,为此必须进行充磁,恢复原有磁场强度。 1.原理与特点电源变压器B1利用5kW调压器进行改装,制造容易且体积小。B1初级绕组即原调压器绕组,次级绕组用φ1.6塑料电线绕75匝而
The test stand can be used for magnetoelectric instrument magnetization, locomotive ammeter calibration, in addition to a 110V, 24V, 12V, 6V power supply for the test of electrical instruments used. Figure 1 for the test bench schematic, the circuit interlocking each other, safe, reliable, easy to operate. First, the use of magneto-magnetoelectric instrument with the time and many disassembly, repair and external magnetic interference, high temperature, vibration, impact, etc., can destroy the regular arrangement of magnetic domains, and thus the magnetic field is weakened, the sensitivity of the table down , For which must be magnetized to restore the original magnetic field strength. 1. Principle and Features Power Transformer B1 using 5kW regulator for modification, easy to manufacture and small size. B1 primary winding that is the original regulator winding, secondary winding φ1.6 plastic wire around 75 turns and