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Chapter 3 Operation/Setup

Accura 3300E User Guide

Page 50

ⓒ

Demand Subinterval [

dMd

→

Demand, SbIt

→

Subinterval

]

Setup Range

1 - 60 minute[default 15]

Number of Demand Subintervals [

dMd

→

Demand, noSb

→

Number of Demand

Subintervals

]

Accura 3300E uses

“

Sliding window

”

Demand Measuring Method.

Demand time[minute] = demand subinterval x number of demand subintervals.

Ex] For national case[15 minute demand time], demand subinterval is 15 minutes and number of

demand subintervals is 1. Refer to Chapter 4 for details.

Setup Range

1 - 12[default 1]

Summary of Contents for ACCURA 3300E

Page 1: ......

Page 2: ...ance of the product should be performed only by qualified competent personnel that have received appropriate training for high voltage and current devices Caution If hazardous voltages are mishandled...

Page 3: ...roduct specifications shown in this User Guide without prior notice We recommend that customers should obtain the latest information on product specifications and the manual before making orders In th...

Page 4: ...the product Rootech will decide at its discretion whether to repair or replace it or give a refund for the product for when the warranty period for the product expired or issues related to the produc...

Page 5: ...ining the feasibility of such suggestions and should conduct tests to prove their feasibility It is the original purchaser s responsibility to determine the suitability of the product and associated d...

Page 6: ...iption of the temperature is changed to the temperature of Accura 3300E Revision 1 02 2017 09 20 UL certification code changed Revision 1 03 2018 01 02 Notice and Warranty Information changed Revision...

Page 7: ...3 Wiring Accura 3300E for External Communication 27 RS 485 Communication 27 Step 4 Wiring Power Supply and Ground Terminal 29 Power Supply 29 Ground Terminal 30 Chapter 3 Operation Setup 31 LEDs 31 B...

Page 8: ...Components 76 Calculation from RMS Values including Harmonics 76 Three phase Power Measurement 77 Vector Sum 77 Arithmetic Sum 78 Power Factor PF Measurement 79 LEAD LAG of Current Phase 79 Demand Mea...

Page 9: ...se 3 Wire Connection with 2 PTs and 2 CTs 23 Wiring Mode Conn 1P3U 23 Fig 2 15 1 Phase 2 Wire Connection with 1 PT and 1 CT 23 Wiring Mode Conn 1P2U 23 Fig 2 16 3 Phase 4 Wire Direct Connection with 3...

Page 10: ...nt Log Number Example 44 Fig 4 1 Connection with 3 PTs and 3 CTs Wiring Mode 3P4U 3P4W Connection 70 Fig 4 2 Connection with 2 PTs and 3 CTs Wiring Mode 3P3U 3P3W Connection 71 Fig 4 3 Connection with...

Page 11: ...2 Class 0 5S standards for power and energy Thus this allows for accurate analysis and diagnosis of various problems in energy management at power facilities True RMS Measurements Accura 3300E perform...

Page 12: ...current It also meets IEC 62053 22 Class 0 5S standards for power and energy measurements It allows for efficient energy management through accurate measurements Preventive Follow up Measures for Powe...

Page 13: ...ata Analog bar graph display corresponding to the measurement amount General Samples cycle 64 Operating frequency 50 60 Hz True RMS measurement Voltage current 0 2 of reading accuracy Measurement freq...

Page 14: ...ent point in the demand subinterval for remaining demand subinterval 2 The data are available only via communication not displayed on the LCD screen 3 Accura 3300E provides the maximum minimum average...

Page 15: ...location Indoors Operating temperature 20 to 70 C 4 to 158 Safety temperature 1 20 to 65 C 4 to 149 Storage temperature 40 to 85 C 40 to 185 Operating humidity 5 95 non condensing 1 Conforms to the U...

Page 16: ...hts Reserved Before You Begin Before installing the Accura 3300E observe the following instructions and safety precautions Caution Power up after voltage and current wiring is completed Meter Overview...

Page 17: ...ra 3300E Components Accura 3300E Two fixing nuts bolts Rear protection cover Short bar Connector Dimensions Fig 2 5 Accura 3300E Front Dimensions Fig 2 6 Accura 3300E Side Dimensions Fig 2 7 Accura 33...

Page 18: ...the meter into the cutout ANSI 4 DIN96 supported Mount the connector to right side of Accura 3300E Fix the meter to panel using fixing nuts Especially in case of conforming to DIN96 compliance through...

Page 19: ...Connector type Terminal block Wire spec 2 1 to 3 5mm2 14 to 12 AWG Measuring range Accuracy guaranteed AC 60 500V direct L L Line to Line Minimum measurable voltage AC 5V direct L N Line to Neutral Ma...

Page 20: ...mm2 14 to 10 AWG Rating 5 A nominal 10 A full scale 3 Accura 3300E 5A 1 A nominal 2 A full scale 3 Accura 3300E 1A Measuring Range Accuracy guaranteed 50 mA 10 A Accura 3300E 5A 10 mA 2 A Accura 3300E...

Page 21: ...f wiring the meter and secondary CT In case that there is primary CT current big accident can be caused by induced high voltage if CT secondary is opened In case of wiring without CTs wiring must be d...

Page 22: ...ll Rights Reserved Fig 2 12 3 Phase 3 Wire Connection with 2 PTs and 3 CTs Wiring Mode Conn 3P3U Note Select 3P3U on Connection setup menu screen Fig 2 13 3 Phase 3 Wire Connection with 2 PTs and 2 CT...

Page 23: ...3 Fig 2 14 1 Phase 3 Wire Connection with 2 PTs and 2 CTs Wiring Mode Conn 1P3U Note Select 1P3U on Connection setup menu screen Fig 2 15 1 Phase 2 Wire Connection with 1 PT and 1 CT Wiring Mode Conn...

Page 24: ...g Diagram Without Using External PTs Fig 2 16 3 Phase 4 Wire Direct Connection with 3 CTs Wiring Mode Conn 3P4U Note Select 3P4U on Connection setup menu screen Fig 2 17 3 Phase 3 Wire Voltage Direct...

Page 25: ...d Page 25 Fig 2 18 3 Phase 3 Wire Voltage Direct Connection with 2 CTs Wiring Mode Conn 3P3U Note Select 3P3U on the Connection setup menu screen Fig 2 19 1 Phase 3 Wire Voltage Direct Connection with...

Page 26: ...a 3300E User Guide Page 26 2015 Rootech Inc All Rights Reserved Fig 2 20 1 Phase 2 Wire Voltage Direct Connection with 1 CT Wiring Mode Conn 1P2U Note V1 and VN terminals must be used Select 1P2U on C...

Page 27: ...nc All Rights Reserved Page 27 Step 3 Wiring Accura 3300E for External Communication RS 485 Communication Accura 3300E supports one RS 485 communication port Fig 2 21 RS 485 Communication of Accura 33...

Page 28: ...485 Item Description Port name Ta TRX Tb TRX Connector type Screw Terminal Pluggable Protocol Modbus RTU Wire spec 0 21 to 3 5 mm2 24 to 12 AWG Shielded twisted pair 1 Maximum cable length 1 219m 4 0...

Page 29: ...nnector type Screw terminal Pluggable Wire spec 2 1 to 3 5 mm2 14 to 12 AWG Rating AC 85 265V 50 60 Hz DC 100 300 V Withstand Voltage AC 2 000V RMS 60 Hz for 1 minute Operating environment Pollution d...

Page 30: ...Item Description Port name Connector type Screw terminal Pluggable Wire spec 2 1 to 3 5 mm2 14 to 12 AWG Note Wire the meter s ground terminal to the earth ground of distribution panel Caution If volt...

Page 31: ...n the power supply of Accura 3300E is in normal state EVENT Red Blinks when an event is detected RS485 Yellow Blinks during RS 485 communication Button Functions Front buttons consist of four buttons...

Page 32: ...n Navigation Menu space at lower part of LCD the position of the present page can be easily recognized Fig 3 3 Screen Example in SETUP Mode If an event such as fuse fail phase open blackout over tempe...

Page 33: ...n Wiring PT Ethernet communication RS 485 communication event etc As the navigation menu of lower part of LCD is displayed the position of the present page can be easily confirmed EVENT Log mode Displ...

Page 34: ...fying state blink Press Select the wanted configured value Or Press Move to the next configured position Long Press Save the configured value blink stops Or Long Press Do not save the configured value...

Page 35: ...ne to Line THD Total Harmonic Distortion FUND Fundamental D Top Bar RMS Root Mean Square Event Event Display EVENT Log mode TDD Total Demand Distortion MAX Maximum C MIN Minimum A Phase A DMD Demand B...

Page 36: ...Factor DEMAND Demand Power Demand Current ENERGY Energy Net Receive Delivery Total INFO Not presently used ETC Temperature Time SETUP METER Measurement element configuration EVENT Event element config...

Page 37: ...h Inc All Rights Reserved Page 37 Display Screen Accura 3300E displays data on all measurement parameters Column V I P E Voltage Current Power Energy V FREQ Voltage Frequency 2 I Current P PF Power Po...

Page 38: ...rst Column of DISPLAY mode By pressing the Down button on the first screen the line to line voltage between phase A and B the current of phase A and energy are displayed By additionally pressing the D...

Page 39: ...e voltage maximum line to neutral voltage minimum line to neutral voltage voltage THD and frequency are displayed in order By pressing the Up button values are displayed in the reverse order Fig 3 8 L...

Page 40: ...wn button reactive power apparent power maximum active power minimum active power maximum reactive power maximum apparent power and power factor are displayed in order By pressing the Up button values...

Page 41: ...screen of energy display column net energy is displayed By pressing the Down button received energy delivered energy and sum of energy are displayed in order By pressing the Up button values are disp...

Page 43: ...s turned on and displays up to 50 event logs Button Operation Button Function DISPLAY mode Press 1 Select the display screen by up down left right button EVENT Log mode Long Press 2 Move to EVENT Log...

Page 44: ...wing table shows that one additional event log is generated in the saved event log from E051 to E100 Event Log E051 E100 Event Log E052 E101 E000 Start Event Log number E000 Start Event Log number E00...

Page 45: ...d d 2 000 999 B FuSE Fuse FaIL Fail Event generated Phase B 1 Fuse fail 1 The phase A B C where the event occurs is displayed 2 d decimal number Phase Open Event Log Display the information when phas...

Page 46: ...blackout event occurs Display E Event Event number d d d 1 000 999 bLAk Black Blackout event is generated Out Out 1 d decimal number Over temperature Event Log Displays the information when an over t...

Page 47: ...ation Menu space at lower part of LCD SETUP Menu Type No of subinterval Demand subinterval Reference current Reference voltage CT rating PT rating Wiring mode Measurement METER Reactive power sign No...

Page 48: ...ting Pt PT Ratio of primary and secondary line to line voltage ratio is used as conversion ratio for primary voltage Primary and secondary line to line voltage for each connection method are followed...

Page 49: ...ference voltage is used as the reference of front bar graph display Reference voltage shoule be configured as PT primary line to line voltage value regardless of voltage wiring connection Setup Range...

Page 50: ...Number of Demand Subintervals dMd Demand noSb Number of Demand Subintervals Accura 3300E uses Sliding window Demand Measuring Method Demand time minute demand subinterval x number of demand subinterv...

Page 51: ...ics Refer to chapter 4 for details Setup Range Fund Fundamental default Calculation based on the fundamental frequency Harn Harmonics Calculation of harmonics Three Phase Total Power Calculation tot V...

Page 52: ...of configuring as 20mA default value when input current rating of Accura 3300E is 5A the value under the 1 250 of the rating would be displayed as 0 Setup Range 5 100mA default 20 Accura 3300E 5A Min...

Page 53: ...load Reactive Power Sign Display Uar Var SIgn Sign Reactive power is calculated by two methods described in Calculation method of reactive power for each phase as sign value or absolute value It is c...

Page 54: ...input ports respectively P Positive default Normal voltage wiring N Negative Reverse voltage wiring 1 d decimal number Current Phase Selection SELEt Select Setup Range A d 1 B d C d default 123 The wi...

Page 55: ...ro value it is detected as fuse fail event Setup Range On Fuse Fail event on oFF default Fuse Fail event off Phase Open Blackout Event bLak Out Blackout In case that both voltage and current of a phas...

Page 56: ...Event Setup Range On Over temperature event on oFF default Over temperature event off Over temperature Event Start Level tnP S Temperature Start Setup Range 20 200 Over temperature event start level d...

Page 57: ...800 bps 9600 default 9600 bps 19200 19200 bps 38400 38400 bps 57600 57600 bps 11520 1 115200 bps 1 At 115 200 bps the host system can be connected with up to 16 devices for communication and the maxim...

Page 58: ...ge 58 2015 Rootech Inc All Rights Reserved Address Addr Address RS 485 Communication Address In order to read measurement data via communication the address should be set to a valid value not zero Set...

Page 59: ...f the fourth line blinks If the rESEt text stops blinking by long pressing the ENTER button again the reset of corresponding data is completed Demand Reset dMd Demand Setup Range rESEt Reset Demand re...

Page 60: ...a 3300E User Guide Page 60 2015 Rootech Inc All Rights Reserved Energy Reset Enrg Energy Setup Range rESEt Reset Energy kWh kVARh kVAh reset All Reset ALL ALL Setup Range rESEt Reset Resets all Demand...

Page 61: ...nergy dEL Deliver Delivered energy tot Total Sum energy Received delivered energy Display of Energy Values Enrg Energy dISP Display Select the five digits of the energy value to be displayed on the Vo...

Page 62: ...backlight blinks during the set hold time However if it is set to the default value it blinks for 5 seconds If it is set to No OFF the blinking backlight can be reset by checking the event log LCD Br...

Page 63: ...Demo mode settings The size of current is calculated by multiplying the CT ratio by 0 2A 2A when the default CT ratio is 10 and the current lags the voltage by 60 degrees Demo Type Purpose Feature Vol...

Page 64: ...r Setup Range d d d d d d 10 digit serial number of the product d d d d 1 d decimal number Hardware Version HUEr Hardware Version Setup Range d d d 1 Hardware revision of the product Ct_ d A CT type A...

Page 65: ...g connection Conn menu screen Long press ENTER button at Conn menu screen configurable element 3P4U 3P4W blinks Select connection from 3P4U 3P4W to 3P3U 3P3W by pressing Up or Down button Long press E...

Page 66: ...Select the number by pressing Up or Down button Move to the next left or right digit by pressing Left Right button Repeat substep until the number selection of all digits is completed Long press ENTER...

Page 67: ...and 1 minute The aggregation interval is 1 second by default The maximum and minimum values provided on the Accura 3300E screen after resetting the max min values are stored in non volatile memory Thu...

Page 68: ...um Active Energy kWh Net Active Energy kWh Received Reactive Energy kVARh Delivered Reactive Energy kVARh Sum Reactive Energy kVARh Net Reactive Energy kVARh Apparent Energy kVAh Demand Demand Current...

Page 69: ...3 phase voltages in the time domain 6 Residual Current is three times the value of zero sequence current for fundamental component If there is no harmonics the residual current is the same value of t...

Page 70: ...Three Phase 4 Wire Connection Fig 4 1 Connection with 3 PTs and 3 CTs Wiring Mode 3P4U 3P4W Connection Voltage Measurement Vector Diagram Item Description V1 V2 V3 VN Voltage of connected N terminal L...

Page 71: ...L N Voltage rms L L Voltage rms Current rms Active Power Phase A VA VAB IA I1 PA VA IA PFA Phase B VB VBC IB I2 PB VB IB PFB Phase C VC VCA IC I3 PC VC IC PFC Average Total VA VB VC 3 VAB VBC VCA 3 I...

Page 72: ...the same way By using 3 CTs rather than 2 CTs the residual current can be measured by summing up three currents Vector Diagram Item Description V1 V2 V3 Vo V1 V2 V3 Vn Vo 3 VN Voltage of floating N t...

Page 73: ...V3 V1 Provided Measurement Data Item L N Voltage rms L L Voltage rms Current rms Active Power Phase A VA VAB IA I1 PA VA IA PFA Phase B VB VBC IB I2 PB VB IB PFB Phase C VC VCA IC I3 PC VC IC PFC Ave...

Page 74: ...ine to neutral voltage sensing Sensing line to neutral voltage V1 V3 based on connected N terminal voltage real line to neutral voltage VA V1 VB 0 by 1P3W configuration VC V3 Calculation of line to li...

Page 75: ...erminal Sensing of line to neutral voltage Sensing line to neutral voltage V1 based on connected N terminal voltage real line to neutral voltage VA V1 VB 0 by 1P2W configuration VC 0 by 1P2W configura...

Page 76: ...phase delaying the voltage phase as much as 90 degrees for the fundamental wave Calculates apparent power for each phase by vector sum of active power and reactive power Calculation from RMS Values in...

Page 77: ...apparent power is calculated based on arithmetic sum of three phase apparent power Total apparent and reactive power can vary according to the calculation methods of total apparent power of three phas...

Page 78: ...Calculates total apparent power by arithmetic sum of three phase apparent power vectors Arithmetic sum Calculates total reactive power by calculating the vector difference between total apparent power...

Page 79: ...t is default configured to display as 1 0 Sign of power factor can be removed by configuration In this case the status received delivered cannot be recognized only by power factor Power factor without...

Page 80: ...Avg 3 0 Avg 4 0 Avg 4 8 Avg 4 3 Avg 2 5 Avg 2 6 1 20 1 25 1 30 1 40 1 45 demand output 3 93 4 37 3 87 3 0 4 0 4 8 3 4 0 4 8 4 3 3 4 8 4 3 2 5 3 time 1 15 3 20 2 6 3 0 4 0 3 Demand Sub Interval Tsub i...

Page 81: ...lays the maximum deviation degree of line line voltage from the average of line line voltages 100 VLL avg Average of line line voltage Max VLL Maximum deviation voltage of the most deviated phase from...

Page 82: ...econd interval by sensing and processing voltage and current signals every 0 2 seconds Aggregation for the interval which is longer than 0 2 seconds is performed and aggregated values are provided as...

Page 83: ...nce 3 M phase Voltage wiring connection Three phase 4 wire 3 wire single phase 3 wire 2 wire Current Measurement Rating 5 A nominal 10A full scale 3 Accura 3300E 5A 1 A nominal 10A full scale 3 Accura...

Page 84: ...ity IEC 61000 4 30 Power quality measurement methods Safety UL 61010 1 Safety requirements for electrical equipment EMC IEC 61000 4 2 Electrostatic Discharge ESD IEC 61000 4 3 EM Field IEC 61000 4 4 E...

Page 85: ...r 0 000 9999 kW MW Class 0 5S 1 Current 0 000 9999 A kA 0 2 Reading Frequency 42 69 Hz 10 mHz Power factor 0 000 1 000 LEAD LAG 0 5 Full scale THD Voltage 0 0 999 9 0 5 Full scale Current 0 0 999 9 0...

Page 86: ...Class 0 5S Current Range Power Factor Class 0 5S 0 01 In 0 05 In 1 1 0 0 05 In Imax 1 1 0 5 0 02 In 0 1 In 0 5 inductive 1 0 0 8 capacitive 1 0 0 1 In Imax 0 5 inductive 0 6 0 8 capacitive 0 6 0 25 i...

Page 87: ...as harmonics up to the 31st order Crest factor K factor unbalance etc which is essential for power quality management of switchgear panels Device Model Description Digital Power Meter Accura 3300E 5A...

Page 88: ...com sales rootech com 2015 Rootech Inc All Rights Reserved Accura 2300 2350 Accura 2300S 2350 Accura 2500 2550 Accura 2700 2750 Accura 3000 Accura 3300E Accura 3300S 3300 Accura 3500S 3500 Accura 3550...

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