Precautions when starting the phase of the generator

(1) During the phase-in operation, the internal potential is reduced and the static reserve is reduced due to the phase-in operation of the generator, which reduces the static stability.

(2) Since the output power of the generator is P=EdU/Xd? Sinδ, both Ed and U are reduced during the phase-in operation, and the power angle δ is increased when the output power P is constant, which also reduces the level of dynamic stability.

(3) Due to the armature reaction of the magnetic flux during the phase-in operation, the leakage flux at the end of the generator increases, the leakage current at the end causes the temperature at the end of the stator to rise, and the leakage flux at the end of the generator is the leakage flux at the end of the stator winding. Synthesis of magnetic flux at the end of the rotor. During the phase-in operation, the phase of the two magnetic fields causes the resultant magnetic flux to be larger than that of the non-phase-in-phase operation, resulting in an increase in the temperature at the end of the stator.

(4) Reduction of power consumption of the factory: The power consumption of the factory is generally quoted from the generator outlet or the generator voltage bus. When the phase is running, the generator power is reduced due to the generator excitation current and the reactive power flow is reversed. The voltage is reduced.