What matters should be noticed when using high voltage bridge in dielectric loss factor of oil filter
2018/5/17 Viewers:
The use of high voltage bridge should be paid attention to.
(1) the high voltage bridge must be managed and used by the special person. For the first time, the performance of the instrument should be fully understood and familiar before use, and then the operation will be carried out so as not to cause unnecessary loss and electric shock.
(2) when selecting the power supply of the high voltage bridge, we should strictly observe the numerical value, class rate and waveform requirements of the power supply voltage in the instruction of the electric bridge.
(3) carefully check wiring, earthing, shielding, connecting wires and so on before use each time.
(4) when measuring, various instruments and equipment should be reasonably arranged so as to eliminate the influence of magnetic field on bridge balance as far as possible.
(5) the amplifier or galvanometer sensitivity regulator should be placed at the lowest position before switching on the power supply. When the bridge is near equilibrium, its sensitivity is gradually increased, and the bridge is balanced at the maximum sensitivity.
(6) when high pressure is applied to the measured oil, the voltage must be slowly increased and the voltage can not be changed. It should be operated at a speed of 1/10 working voltage per second.
(7) operators must concentrate their minds and do all preparation work before work. There should be obvious signs around the testing site or shielded into dangerous areas by metal shielding in case of non staff rushing.
(8) if the gas discharge tube is luminous, it is necessary to cut off the power in time, carefully check whether the wiring is correct and whether the object is measured or not, and then the high pressure measurement will be done after the fault is excluded.
(9) the power source of the bridge should be disconnected before the wiring or replacement of the bridge is changed.
(1) the high voltage bridge must be managed and used by the special person. For the first time, the performance of the instrument should be fully understood and familiar before use, and then the operation will be carried out so as not to cause unnecessary loss and electric shock.
(2) when selecting the power supply of the high voltage bridge, we should strictly observe the numerical value, class rate and waveform requirements of the power supply voltage in the instruction of the electric bridge.
(3) carefully check wiring, earthing, shielding, connecting wires and so on before use each time.
(4) when measuring, various instruments and equipment should be reasonably arranged so as to eliminate the influence of magnetic field on bridge balance as far as possible.
(5) the amplifier or galvanometer sensitivity regulator should be placed at the lowest position before switching on the power supply. When the bridge is near equilibrium, its sensitivity is gradually increased, and the bridge is balanced at the maximum sensitivity.
(6) when high pressure is applied to the measured oil, the voltage must be slowly increased and the voltage can not be changed. It should be operated at a speed of 1/10 working voltage per second.
(7) operators must concentrate their minds and do all preparation work before work. There should be obvious signs around the testing site or shielded into dangerous areas by metal shielding in case of non staff rushing.
(8) if the gas discharge tube is luminous, it is necessary to cut off the power in time, carefully check whether the wiring is correct and whether the object is measured or not, and then the high pressure measurement will be done after the fault is excluded.
(9) the power source of the bridge should be disconnected before the wiring or replacement of the bridge is changed.
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