standards and guidelines for communication sites - Radio And ...
standards and guidelines for communication sites - Radio And ... standards and guidelines for communication sites - Radio And ...
POWER QUALITY CHAPTER 6: POWER SOURCES NORMAL SAG SWELL FLUCTUATIONS FIGURE 6-5 VOLTAGE SAGS, SWELLS, AND FLUCTUATIONS LIGHTNING FIGURE 6-6 TYPICAL TRANSIENT VOLTAGES FIGURE 6-7 HARMONIC DISTORTION EXAMPLE FIGURE 6-8 NOISE EXAMPLE SYSTEM SWITCHING 6-14 68P81089E50-B 9/1/05
STANDARDS AND GUIDELINES FOR COMMUNICATION SITES POWER QUALITY 6.3.3 COMMON EFFECTS OF POWER QUALITY PROBLEMS The following table summarizes the common effects of power quality problems on connected equipment: TABLE 6-2 COMMON EFFECTS OF POWER QUALITY PROBLEMS Problem Common Effect Frequency Deviation • Writing errors in any electronic writing device • Incorrect clock timing Voltage Sags (or dips) • Equipment shutdown • Power supply interruptions • CPU lock up • Data errors Voltage Swells • Microprocessor failure • Progressive damage to power supplies Transients • Damage to microprocessors • Data errors or loss • Lock ups • Catastrophic failure of electronic equipment Total Harmonic Distortion (> 5%) • Failure of microprocessor controlled equipment • Overheating of electrical system components • Decreased life expectancy of electrical system transformers • Circuit breakers tripping 68P81089E50-B 9/1/05 6-15
- Page 229 and 230: STANDARDS AND GUIDELINES FOR COMMUN
- Page 231 and 232: STANDARDS AND GUIDELINES FOR COMMUN
- Page 233 and 234: STANDARDS AND GUIDELINES FOR COMMUN
- Page 235 and 236: STANDARDS AND GUIDELINES FOR COMMUN
- Page 237 and 238: STANDARDS AND GUIDELINES FOR COMMUN
- Page 239 and 240: STANDARDS AND GUIDELINES FOR COMMUN
- Page 241 and 242: STANDARDS AND GUIDELINES FOR COMMUN
- Page 243 and 244: STANDARDS AND GUIDELINES FOR COMMUN
- Page 245 and 246: STANDARDS AND GUIDELINES FOR COMMUN
- Page 247 and 248: STANDARDS AND GUIDELINES FOR COMMUN
- Page 249 and 250: STANDARDS AND GUIDELINES FOR COMMUN
- Page 251 and 252: STANDARDS AND GUIDELINES FOR COMMUN
- Page 253 and 254: STANDARDS AND GUIDELINES FOR COMMUN
- Page 255 and 256: STANDARDS AND GUIDELINES FOR COMMUN
- Page 257 and 258: STANDARDS AND GUIDELINES FOR COMMUN
- Page 259 and 260: STANDARDS AND GUIDELINES FOR COMMUN
- Page 261 and 262: STANDARDS AND GUIDELINES FOR COMMUN
- Page 263 and 264: STANDARDS AND GUIDELINES FOR COMMUN
- Page 265 and 266: STANDARDS AND GUIDELINES FOR COMMUN
- Page 267 and 268: CHAPTER 6 POWER SOURCES 6 6.1 LOCKO
- Page 269 and 270: STANDARDS AND GUIDELINES FOR COMMUN
- Page 271 and 272: STANDARDS AND GUIDELINES FOR COMMUN
- Page 273 and 274: STANDARDS AND GUIDELINES FOR COMMUN
- Page 275 and 276: STANDARDS AND GUIDELINES FOR COMMUN
- Page 277 and 278: STANDARDS AND GUIDELINES FOR COMMUN
- Page 279: STANDARDS AND GUIDELINES FOR COMMUN
- Page 283 and 284: STANDARDS AND GUIDELINES FOR COMMUN
- Page 285 and 286: STANDARDS AND GUIDELINES FOR COMMUN
- Page 287 and 288: STANDARDS AND GUIDELINES FOR COMMUN
- Page 289 and 290: STANDARDS AND GUIDELINES FOR COMMUN
- Page 291 and 292: STANDARDS AND GUIDELINES FOR COMMUN
- Page 293 and 294: STANDARDS AND GUIDELINES FOR COMMUN
- Page 295 and 296: STANDARDS AND GUIDELINES FOR COMMUN
- Page 297 and 298: STANDARDS AND GUIDELINES FOR COMMUN
- Page 299 and 300: STANDARDS AND GUIDELINES FOR COMMUN
- Page 301 and 302: STANDARDS AND GUIDELINES FOR COMMUN
- Page 303 and 304: STANDARDS AND GUIDELINES FOR COMMUN
- Page 305 and 306: STANDARDS AND GUIDELINES FOR COMMUN
- Page 307 and 308: STANDARDS AND GUIDELINES FOR COMMUN
- Page 309 and 310: STANDARDS AND GUIDELINES FOR COMMUN
- Page 311 and 312: CHAPTER 7 SURGE PROTECTIVE DEVICES
- Page 313 and 314: STANDARDS AND GUIDELINES FOR COMMUN
- Page 315 and 316: STANDARDS AND GUIDELINES FOR COMMUN
- Page 317 and 318: STANDARDS AND GUIDELINES FOR COMMUN
- Page 319 and 320: STANDARDS AND GUIDELINES FOR COMMUN
- Page 321 and 322: STANDARDS AND GUIDELINES FOR COMMUN
- Page 323 and 324: STANDARDS AND GUIDELINES FOR COMMUN
- Page 325 and 326: STANDARDS AND GUIDELINES FOR COMMUN
- Page 327 and 328: STANDARDS AND GUIDELINES FOR COMMUN
- Page 329 and 330: STANDARDS AND GUIDELINES FOR COMMUN
POWER QUALITY CHAPTER 6: POWER SOURCES<br />
NORMAL SAG SWELL FLUCTUATIONS<br />
FIGURE 6-5 VOLTAGE SAGS, SWELLS, AND FLUCTUATIONS<br />
LIGHTNING<br />
FIGURE 6-6 TYPICAL TRANSIENT VOLTAGES<br />
FIGURE 6-7 HARMONIC DISTORTION EXAMPLE<br />
FIGURE 6-8 NOISE EXAMPLE<br />
SYSTEM SWITCHING<br />
6-14 68P81089E50-B 9/1/05
Change language