1BPROTECTION FUNCTIONS
PROTECTION, CONTROL AND METERING FUNCTIONS
2.1.8. UNDERVOLTAGE PROTECTION
2.1.8.1. GENERAL DESCRIPTION (27)
Three unit under voltage protection, compound voltages, with 4 steps. In each step,
the protection element is activated if the voltage level of any phase with respect to the
neutral (Van, Vbn, Vcn) is below the configured value during a period of time equal to
or longer than the time threshold set by the user.
Two general configurations are available to activate this function:
1. Simple function operation. Using this feature, unchecking the checkbox, the
function does not supervise the status of breaker neither the current flow in the
phases.
2. Including breaker supervision. Checking the checkbox, the function is only
activated when the breaker or current flow in phases is detected.
Note. For further details configuring this function, please refer to 3.4.1.6 section in
this manual.
Figure 2-19 shows the logical diagram for the phase A undervoltage protection
function.
Содержание smART P500
Страница 1: ...Instruction Manual Multifunction Protection Relay smART P500...
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Страница 39: ...5BHARDWARE FEATURES INTRODUCTION Figure 1 9 Wye Wye Connection measured neutral...
Страница 40: ...5BHARDWARE FEATURES INTRODUCTION Figure 1 10 Wye Wye Connection sensitive neutral...
Страница 41: ...5BHARDWARE FEATURES INTRODUCTION Figure 1 11 Open Delta Connection measured neutral...
Страница 42: ...5BHARDWARE FEATURES INTRODUCTION Figure 1 12 Open Delta Connection sensitive neutral...
Страница 499: ...1BIEC 255 4 AND BS142 CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 1 Standard inverse IEC Curve...
Страница 501: ...1BIEC 255 4 AND BS142 CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 2 Very inverse IEC Curve...
Страница 503: ...1BIEC 255 4 AND BS142 CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 3 Extremely inverse IEC curve...
Страница 505: ...1BIEC 255 4 AND BS142 CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 4 Short inverse IEC curve...
Страница 507: ...1BIEC 255 4 AND BS142 CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 5 Long inverse IEC curve...
Страница 511: ...2BANSI CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 6 Moderately ANSI curve...
Страница 513: ...2BANSI CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 7 Very inverse ANSI curve...
Страница 515: ...2BANSI CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 8 Extremely inverse ANSI curve...
Страница 532: ...4BRECLOSER CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 14 Recloser Curves 101 119...
Страница 535: ...4BRECLOSER CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 15 Recloser Curves 120 142...
Страница 538: ...4BRECLOSER CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 16 Recloser Curves 151 202...
Страница 541: ...4BRECLOSER CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 17 Recloser Curves 25 Amp 35 Amp A B C D E...
Страница 544: ...4BRECLOSER CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 18 Recloser Curves 50 Amp 70 Amp A B C D E...
Страница 547: ...4BRECLOSER CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 19 Recloser Curves 100 Amp 140 Amp A B C D E...
Страница 550: ...4BRECLOSER CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 20 Recloser Curves 160 Amp 185 Amp A B C D E...
Страница 553: ...4BRECLOSER CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 21 Recloser Curves 225 Amp A B C D E...
Страница 556: ...4BRECLOSER CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 22 Recloser Curves 280 Amp 280X Amp A B C D E...
Страница 559: ...4BRECLOSER CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 23 Recloser Curves 400 Amp 400X Amp A B C D E...
Страница 562: ...4BRECLOSER CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 24 Recloser Curves 560 Amp 560X Amp A B C D E...