2018年1月14日 · Geometric Mean Radius GMR of a conductor is that fictitious radius which do not has any internal flux linkage but only have external flux linkage. GMR = 0.7788r

GMD (Geometrical Mean Distance) and GMR (Geometrical Mean Radius) are the two important terms used in the inductance and capacitance calculations of the overhead transmission lines.

2021年8月22日 · The inductance and capacitance calculations of an overhead transmission line are simplified by using two important terms namely GMR (self GMD) and mutual GMD. Particularly, when there is a multiconductor arrangement, GMR and GMD ease the inductance and capacitance solving process.

2、巨 磁电阻 GMR（Giant Magnetoresistance） 巨磁电阻实质上可以理解为一个铁磁金属/非磁性金属/铁磁金属组成的三层三明治（sandwich）结构的磁电阻特性，比如Co/Cu/Co三层结构，由于其磁阻随着外界磁场能发生显著变化的特性，能够用来探测磁场相关参数，制成传感 ...

power). The geometric mean equation is: Dmean = M 1 YY NM Dnm (3) n=1m=1 Geometric Mean Radius (GMR): In situations in which the current of a given wire is carried by multiple conductors, we use DGMR to give an “efective r. dius” for a single wire that would behave equivalently to the wire ba. ch. For DGMR, N = M in equation 3 is the nu.

Per definition the GMR of a specific conductor or conductor arrangement is the radius of an infinitely thin tube with the same internal inductance as the conductor itself out to a 1-foot radius

2020年6月22日 · Zij–g is the mutual impedance between conductors i and j with common ground return. gmri is the effective radius (or geometric mean radius) of conductor i in centimeters. hi is the height of conductor i in centimeters. ri is the internal resistance of conductor i.

2024年10月2日 · The formula to calculate the Geometric Mean Radius is: \text {GMR} = 0.7788 \cdot r GMR = 0.7788⋅ r. where: r r is the solid conductor radius in millimeters. Let's consider a conductor with a radius of 15 mm: \text {GMR} = 0.7788 \cdot 15 = 11.682 \, \text {mm} GMR = 0.7788⋅ 15 = 11.682mm.

2016年9月20日 · GMD & GMR stands for Geometrical Mean Distance and Geometrical Mean Radius. This concept is very useful in Power System for the calculation of Inductance and Capacitance of Transmission Line.

Geometrical mean radius (GMR) is a number corresponding to the effective radius of one or more lines. Geometrical mean distance (GMD): A term in power transmission lines corresponding to the spacing between the two (in a single phase) and three or six (in three phase) power lines used to determine the inductance and capacitance associated with ...