判断题LB（True or false LB）.docVIP

判断题LB（True or false LB） The hottest part of the Lb5B4101 transformer is 1/3 of the lower layer of the transformer. (x) The Lb5B3102 transformer copper loss is the most economical when the iron loses. (fx) The Lb5B2103 transformer has no current when it is empty. (x) The Lb5Bll04 transformer silicon is changed pink. (fx) Lb5B4105 transformer core can be more grounded. (x) The neutral grounding of the Lb5B4106 transformer is a work grounding. (fx) Lb5B4107 transformer has the action of the gas relay when it passes through the current. (fx) Lb5B4108 is designed to compensate the capacitance current of the power grid grounding in the transformer neutral point. (fx) The blasting pressure of Lb5B3109 transformer flameproof tube is 0.049 MPa. (fx) The insulation resistance of Lb5B4110 transformer is unchanged when the transformer temperature rises. (x) The Lb5B4111 transformer pressure thermometer refers to the temperature of the winding. (x) Lb5B4112 transformer core earthing current one year. (x) The large cover of Lb5B3113 transformer is 2 % ~ 4 % in the direction of gas relay. (x) Lb5B3114 has a load regulating transformer that changes the tap when it is not loaded. (x) The Lb5B2115 transformer net oil is used to absorb water from the oil. (fx) Lb5B2116 electrical instrument accuracy level 7. (fx) The error of Lb5B4117 instrument is: the inherent error and the additional error caused by the external environment. (fx) Lb5B5118 accuracy is 0.1, and the basic error is no more than 0.1%. (fx) Lb5B3119 current meter has a high impedance, while the impedance of the voltmeter is smaller. (x) Lb5B3120 in neutral grounding system, zero sequence current transformer is commonly connected to the neutral grounding line. (fx) The Lb5B2121 voltage transformer is also called the instrument transformer, also known as TV, working principle, structure and wiring mode are the same as the transformer. (fx) The main difference between a voltage transformer and a transformer is that the capa