CCS WattNode Pulse WNB-3D-240-P Reference Manual Download Page 1

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Rev V18c

(M5)

att

ode

ulse

Reference Manual

WattNode Pulse

Models

WNB-3Y-208-P

WNB-3Y-400-P
WNB-3Y-480-P
WNB-3Y-600-P

WNB-3D-240-P

WNB-3D-400-P
WNB-3D-480-P

WattNode Revenue Pulse

Models

RWNB-3Y-208-P

RWNB-3Y-400-P
RWNB-3Y-480-P
RWNB-3Y-600-P

RWNB-3D-240-P

RWNB-3D-400-P
RWNB-3D-480-P

Summary of Contents for WattNode Pulse WNB-3D-240-P

Page 1: ...ce Manual WattNode Pulse Models WNB 3Y 208 P WNB 3Y 400 P WNB 3Y 480 P WNB 3Y 600 P WNB 3D 240 P WNB 3D 400 P WNB 3D 480 P WattNode Revenue Pulse Models RWNB 3Y 208 P RWNB 3Y 400 P RWNB 3Y 480 P RWNB...

Page 2: ...designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used...

Page 3: ...unting 14 Selecting Current Transformers 15 Connecting Current Transformers 16 Circuit Protection 17 Connecting Voltage Terminals 18 Connecting Pulse Outputs 18 Output Assignments 19 Pull Up Resistor...

Page 4: ...y and the PV or wind generated energy See Manual Supplement MS 10 Option PV Photovoltaic for details Options DPO The dual positive outputs option behaves exactly like the standard bidirec tional model...

Page 5: ...t is not required for safety grounding but ensures maximum meter accuracy C Neutral This terminal N should be connected to neutral when available D E F Line voltage inputs These terminals connect to t...

Page 6: ...A terminals For delta models this voltage should appear between the A and B terminals V Mains frequencies This indicates the rated mains frequencies for the meter W Maximum rated power This is the ma...

Page 7: ...36 for CT maximum ratings 6 Ensure that the line voltage input leads to the meter are protected by fuses or circuit breakers not needed for the neutral wire See Circuit Protection p 17 for details 7...

Page 8: ...B 1 Phase 3 Wire 120V 240V with neutral 96 138 166 276 3Y 208 N and A 3D 240 A and B 3 Phase 3 Wire Delta 208V no neutral n a 166 276 3D 240 A and B 3 Phase 3 Wire Delta 400V no neutral non U S n a 32...

Page 9: ...E BLACK B CT C CT A CT B C N A Common Input or Positive Monitoring Equip ment or Display P1 P2 P3 COM Output Status Status Status WATTNODE PULSE WNB WNB P P Line Neutral SOURCE LOAD Shorting Jumpers S...

Page 10: ...t or Positive Monitoring Equip ment or Display P1 P2 P3 COM Output Status Status Status WATTNODE PULSE WNB WNB P P Phase A Neutral Phase B WHITE BLACK 120 Vac 240 Vac 120 Vac SOURCE LOAD Shorting Jump...

Page 11: ...Monitoring Equip ment or Display P1 P2 P3 COM Output Status Status Status WATTNODE PULSE WNB WNB P P Phase A Phase B WHITE BLACK 208 240 Vac SOURCE LOAD Shorting Jumper Source Faces Current Transform...

Page 12: ...es Current Transformers 3Y xxx 3D xxx Figure 5 Three Phase Four Wire Wye Connection Recommended WattNode Models The following table shows the WattNode models that should be used depending on the line...

Page 13: ...1 P2 P3 COM Output Status Status Status WATTNODE PULSE WNB WNB P P Phase A Phase B Phase C WHITE BLACK WHITE BLACK SOURCE LOAD Source Faces Current Transformers 3D xxx Figure 6 Three Phase Three Wire...

Page 14: ...ter in the mounting position because the drill may damage the connectors and leave drill shavings in the connectors You may mount the meter with the supplied 8 self tapping sheet metal screws using 1...

Page 15: ...is the value reported by multimeters and the WattNode meter Resistive loads like heaters and incandescent lights have nearly sinusoidal current waveforms with a crest factor near 1 4 Power factor cor...

Page 16: ...current transformers to the voltage phases being measured Make sure the A CT is installed on the same conductor phase that is connected to A voltage input and the same for phases B and C Use the suppl...

Page 17: ...nnected equipment because it does not use a conventional power cord that can be easily unplugged Permanently connected equip ment must have overcurrent protection and be installed with a means to disc...

Page 18: ...e A to N neutral for wye 3Y models or A to B for delta 3D models If the meter is not receiving at least 80 of the nominal line voltage it may stop operating Since the meter consumes a small amount of...

Page 19: ...el has its own positive output connec tion labeled P1 P2 and P3 tied to the transistor collectors Output Assignments The following table shows the pulse output channel assignments for the standard bid...

Page 20: ...7k 600 470k 47k 1 0k 620k 47k 2 4k 910k 100k 4 7k 1 3M 50 Hz 10k 600 91k 10k 1 0k 130k 20k 2 4k 200k 47k 4 7k 270k 100 Hz 4 7k 600 47k 4 7k 1 0k 62k 10k 2 4k 100k 20k 4 7k 130k 200 Hz 2 0k 600 24k 2 0...

Page 21: ...esent but the measured power is below the minimum that the meter will measure see Specifications Measurement Creep Limit the meter will display solid green for that phase Inactive Phase If the meter d...

Page 22: ...ce of noise Also try to keep the CT wires as short as possible and cut off excess wire Meter Not Operating It should not be possible for all three LEDs to stay off when the meter is powered because th...

Page 23: ...ould output pulses on P1 so there may be something wrong with the pulse output connection or you may need a pull up resistor see Connecting Pulse Outputs p 18 If the LEDs on one or more phases are fla...

Page 24: ...mall Most current transformers are only specified to meet their accuracy from 10 to 100 of rated current In practice most CTs work reasonably well down to 1 of rated current Very low currents may not...

Page 25: ...se frequency is constant and the output is an exact square wave If the power is increasing or decreasing the output waveform will not be a perfect square wave as the on and off periods are getting lon...

Page 26: ...90 20 0 500 0 9583 1 1542 1 4458 2000 00 1043 48 866 426 691 643 30 0 750 1 4375 1 7313 2 1688 1333 33 695 652 577 617 461 095 50 1 250 2 3958 2 8854 3 6146 800 000 417 391 346 570 276 657 60 1 500 2...

Page 27: ...285 138 329 400 3 3333 6 3889 7 6944 9 6389 300 000 156 522 129 964 103 746 600 5 0000 9 5833 11 542 14 458 200 000 104 348 86 643 69 164 800 6 6667 12 778 15 389 19 278 150 000 78 261 64 982 51 873...

Page 28: ...is the current transformer CT rated amps Note If the conductors being measured are passed through the CTs more than once then CtAmps is the rated CT current divided by the number of times that the co...

Page 29: ...0 02500 0 008333 WNB 3D 400 P 0 04792 0 01597 WNB 3D 480 P 0 05771 0 01924 Table 8 Watt Hours per Pulse per CT Rated Amp For example a WNB 3Y 208 P with a full scale pulse frequency of 4 00 Hz has a W...

Page 30: ...averaged over different time periods to compute the average power also called demand Note use NVac value from Table 7 above FSHz NVac PpPO CtAmps PulseFreq Power W Maintenance and Repair The WattNode...

Page 31: ...P1 P2 and P3 Each generates pulses in proportion to the real positive energy measured on one phase phases A B and C respectively Option DPO Dual Positive Outputs This option is like the standard mode...

Page 32: ...racy The following accuracy specifications do not include errors caused by the current transformer accuracy or phase angle errors Rated current is the current that generates a CT output voltage of 0 3...

Page 33: ...nce as measured by a DMM 100 to 2000 Approximate OFF Resistance as measured by a DMM 50 M Measurement Creep Limit 0 10 1 1000th of full scale Whenever the real power for a phase drops below the creep...

Page 34: ...ut Fall Time approximately 2 3 microseconds with a 5 Vdc pull up voltage Option SSR Outputs Isolation 5000 Vac RMS Breakdown Voltage 60 Vdc or 40 Vac can switch positive negative or AC voltages Maximu...

Page 35: ...66 Vac to 15 of 240 Vac 276 Vac Operating Frequencies 50 60 Hz Measurement Category CAT III Measurement category III is for measurements performed in the building installation Examples are measurement...

Page 36: ...oor Use Suitable for outdoor use when mounted inside an electrical enclosure Hammond Mfg Type EJ Series that is rated NEMA 3R or 4 IP 66 Mechanical Enclosure High impact ABS and or ABS PC plastic Flam...

Page 37: ...0 xxx CTS 2000 xxx and CTL 1250 xxx where xxx indicates the full scale current rating CTB wwwXhhh xxx and CTBL wwwXhhh xxx where www and hhh indicate the width and height in inches and xxx indicates t...

Page 38: ...disclaims and negates all other warranties including without limitation implied warranties of merchantability and fitness for a particular purpose Limitation of Liability In no event shall CCS be liab...

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