1) power differential method
差有功法
1.
On the basis of power differential method,a novel principle of transformer protection using generalized instantaneous power is presented.
在差有功法的基础上,提出一种利用广义瞬时功率实现变压器保护的新原理。
3) Virtual Difference Method
虚有差法
4) the error of active power metering
有功计量误差
1.
By calibrating the error of the reactive power metering,the error of active power metering can be indirectly calibrated.
本文给出了一种电能计量装置现场校验的方法,通过对三相电能表无功计量误差的校验,可以间接地求得其表计的有功计量误差。
5) division difference of active power
有功功率分配差度
1.
As to two parallel generators,this paper discusses the influence of single generator s rated frequency s setting point and the steady state frequency regulation upon the division difference of active power and gives the formula derivation of the interacting factors.
论述了单台发电机组额定频率整定点和稳态频率调整率对两台发电机组并车后的有功功率分配差度的影响,给出了它们之间的关联算式,实际对两台电动发电机组进行了并车试验,验证了理论分析的正确性。
6) the power differential protection principle
有功功率差动保护原理
补充资料：有功
1.有功劳﹐有功绩。 2.有功之人。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条