. The Bell System technical journal . 0 t OPERATEDPOSITION ^ ARMATURE TRAVEL IN INCHES RELEASED POSITION(AGAINST backstop) Fig. 1 —Typical load and pull characteristics of a wire spring relay with 12transfer contacts. MAGNETIC OKSKiX OK IJKLAVS 27. Fig. 2 NI, NI2 ABAMPERE TURNS,NI > Energy relations in magnetization. size, or winding space provided. The choice of these dimensions reflectsan economic balance between the manufacturing costs of the magnet andits coil, which increase with these chmensions, and the saxings in powercost resulting from increasing the coil
. The Bell System technical journal . 0 t OPERATEDPOSITION ^ ARMATURE TRAVEL IN INCHES RELEASED POSITION(AGAINST backstop) Fig. 1 —Typical load and pull characteristics of a wire spring relay with 12transfer contacts. MAGNETIC OKSKiX OK IJKLAVS 27. Fig. 2 NI, NI2 ABAMPERE TURNS,NI > Energy relations in magnetization. size, or winding space provided. The choice of these dimensions reflectsan economic balance between the manufacturing costs of the magnet andits coil, which increase with these chmensions, and the saxings in powercost resulting from increasing the coil constant. 2 MAGXETIZATIOX RELATIONS The magnetization relations of an (electromagnet define the steadystate flux linkages of the coil as a function of the two variables: mag-netomotive force JF (equal to 4xA^/), and the gap .v, which specifies thearmature position. They may be represented by a family of curves eachgi\ing the average flux linked per turn plotted against NI for a particu-lai- value of x. In Fig. 2, the curves marked .ri and .7:2 represent two suchcurves, where Xo corresponds to a smaller gap than .ri . To determine how the magnetization relations depend upon the dimen-sions and configuration of the electromagnet reriuires thcii- iii1(rj)retationin te
Size: 1521px × 1642px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
