Knowledge (XXG)

Helical armature

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fashion as opposed to a conventional random or orthocyclic winding. Such a design is of interest in superconducting motor and generation technology, though comparatively little research has been done on the subject. An important and remarkable feature of helical armature windings is that they have no
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An advantage of helical armature windings in superconducting generators is that they have higher VA ratings, lower armature resistance, and lower synchronous reactance. Future superconducting generators would benefit from a helical winding because due to the absence of active and end zone it can be
40:. Moreover, as each conductor follows a helical path of constant pitch, helical windings are not easily divided into active and end regions. An important downside, though, is that such armatures provide poor winding factors. 77:
supported uniformly, unlike a conventional winding. There is a <10% loss in motor flux though, but this would be compensated for by the various advantages in this design.
44: 224: 114: 64:, and giving it a longer lifespan. Helical windings also provide low inertia and smooth torque for low-speed 86: 48: 28: 229: 115:"Analysis of helical armature windings with particular reference to superconducting a.c. generators" 60:
Motors of helical armature design have a lower winding resistance, allowing the motor to run more
43: 37: 25: 180: 200: 192: 126: 181:"AIR-CORE ARMATURE SHAPE: A COMPARISON OF HELICAL AND STRAIGHT- WITH-END-TURNS WINDINGS" 65: 21: 218: 196: 61: 204: 130: 68:
motors. A disadvantage is that they have relatively low winding ratios.
150: 42: 32: 151:"Simulation Technology for Electromechanical Design : JMAG" 119:
IEE Proceedings C - Generation, Transmission and Distribution
113:Anderson, A.F.; Bumby, J.R.; Hassall, B.I. (1980). 8: 98: 185:Electric Machines & Power Systems 144: 142: 140: 47:An illustration of a helically wound 7: 174: 172: 170: 108: 106: 104: 102: 14: 179:Kirtley, James L. (May 1995). 1: 246: 155:www.jmag-international.com 197:10.1080/07313569508955622 87:Coil winding technology 131:10.1049/ip-c.1980.0024 52: 149:Miller (2022-08-01). 46: 20:is a form of air-gap 53: 72:Use in generators 237: 209: 208: 176: 165: 164: 162: 161: 146: 135: 134: 110: 18:helical armature 245: 244: 240: 239: 238: 236: 235: 234: 225:Electric motors 215: 214: 213: 212: 178: 177: 168: 159: 157: 148: 147: 138: 112: 111: 100: 95: 83: 74: 58: 12: 11: 5: 243: 241: 233: 232: 227: 217: 216: 211: 210: 191:(3): 263–278. 166: 136: 97: 96: 94: 91: 90: 89: 82: 79: 73: 70: 57: 54: 22:electric motor 13: 10: 9: 6: 4: 3: 2: 242: 231: 228: 226: 223: 222: 220: 206: 202: 198: 194: 190: 186: 182: 175: 173: 171: 167: 156: 152: 145: 143: 141: 137: 132: 128: 124: 120: 116: 109: 107: 105: 103: 99: 92: 88: 85: 84: 80: 78: 71: 69: 67: 63: 56:Use in motors 55: 50: 45: 41: 39: 34: 30: 27: 23: 19: 188: 184: 158:. Retrieved 154: 122: 118: 75: 59: 38:end windings 17: 15: 230:Electronics 62:efficiently 31:wound in a 219:Categories 160:2023-10-22 125:(3): 129. 93:References 205:0731-356X 26:generator 81:See also 49:armature 29:armature 33:helical 203:  201:ISSN 193:doi 127:doi 123:127 24:or 221:: 199:. 189:23 187:. 183:. 169:^ 153:. 139:^ 121:. 117:. 101:^ 66:DC 16:A 207:. 195:: 163:. 133:. 129:: 51:.

Index

electric motor
generator
armature
helical
end windings

armature
efficiently
DC
Coil winding technology




"Analysis of helical armature windings with particular reference to superconducting a.c. generators"
doi
10.1049/ip-c.1980.0024



"Simulation Technology for Electromechanical Design : JMAG"



"AIR-CORE ARMATURE SHAPE: A COMPARISON OF HELICAL AND STRAIGHT- WITH-END-TURNS WINDINGS"
doi
10.1080/07313569508955622
ISSN
0731-356X
Categories

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