Bitronics M651 Скачать руководство пользователя страница 18 | Manualshive

Страница: 18 / 80

Bitronics M651 Скачать руководство пользователя страница 18

18

ML0039 November 14, 2013

Copyright 2013 Bitronics, LLC

Safety Requirements for Electrical Equipment for Measurement, Control, and
Laboratory Use – Part 2: Particular Requirements for Testing and Measuring Circuits

CSA C22.2 No. 61010-1-12-CAN/CSA, Edition 3, Issue Date 2012/05/01
CAN/CSA Safety Requirements for Electrical Equipment for Measurement, Control,
and Laboratory Use – Part 1: General Requirements
CSA C22.2 No. 61010-2-30-12-CAN/CSA, Edition 1 – Issue Date 2012/05/01
Safety Requirements for Electrical Equipment for Measurement, Control, and
Laboratory Use – Part 2-030: Particular Requirements for Testing and Measuring
Circuits

If applicable, the CE mark must be prominently marked on the case label.

European Community Directive on EMC 2004/108/EC and Directive
91/263/EC [TTE/SES].
European Community Directive on Low Voltage 2006/95/EC

Product and Generic Standards

The following product and generic standards were used to establish conformity:

Low Voltage (Product Safety)

IEC 61010-1, Edition 3, Issue Date 2013/02/01
Safety Requirements for Electrical Equipment for Measurement, Control, and
Laboratory Use – Part 1: General Requirements
IEC 61010-2-30, Edition 1 – Issue Date 2010/06/02
Safety Requirements for Electrical Equipment for Measurement, Control, and
Laboratory Use – Part 2-030: Particular Requirements for Testing and Measuring
Circuits

EMC:

EN 61326-1: 2013 (Supersedes EN61326-1: 2006), EN 61000-6-2: 2005,

EN 61000-6-4: 2007/ A1:2011 (IEC date 2010)

Radiated Emissions Electric Field Strength
EN 55011: 2009/ A1: 2010
EN 61000-6-4: 2007/ A1:2011 (IEC date 2010
Group 1, Class A
Frequency: 30 - 1000 MHz

AC Powerline Conducted Emissions
EN 55011: 2009/ A1: 2010
EN 61000-6-4: 2007/ A1:2011 (IEC date 2010
Group 1, Class A
Frequency: 150 kHz – 30 MHz

Electrostatic Discharge (ESD)
EN61000-4-2: 2009
Discharge voltage: ± 8 KV Air; ± 4 KV Contact & Additionally meets ± 6 KV Contact

«
...
16
17
18
19
20
...
»

Содержание M651

Страница 1: ...M651 Multifunction Digital Transducer User Manual November 14 2013 ML0039 Document Revision F 2013 by Bitronics LLC ...

Страница 2: ...2 ML0039 November 14 2013 Copyright 2013 Bitronics LLC ...

Страница 3: ...1 4 Standards and Certifications 17 1 4 1 Revenue 17 1 5 Environment 17 2 0 PHYSICAL CONSTRUCTION MOUNTING 20 2 2 Initial Inspection 22 2 3 Protective Ground Earth Connections 22 2 4 Overcurrent Protection 22 2 5 Supply Mains Disconnect 22 2 6 Instrument Mounting 22 2 7 Cleaning 23 3 0 BACK PANEL WIRING 24 3 1 Auxiliary Power 25 3 1 1 Specifications per section 1 3 26 3 2 VT Inputs VA VB VC VN See...

Страница 4: ...Energy 56 6 9 Frequency 57 6 10 Demand Measurements 57 6 10 1 Ampere and Fundamental Ampere Demand 58 6 10 2 Volt Demand 58 6 10 3 Power Demands Total Watts VARs and VAs 58 6 10 4 Demand Resets 59 6 10 5 Demand Interval 59 6 11 Harmonic Measurements 59 6 11 1 Voltage Distortion THD 59 6 11 2 Current Distortion THD and TDD 59 6 11 3 Fundamental Current 60 6 11 4 Fundamental Voltage 61 6 11 5 K Fact...

Страница 5: ...secondary volts screens more info to front panel menu V1 060 2010 07 20 Add support for B3 models V1 070 2010 08 03 Add support for 1A input and 4 20mA output V1 090 2010 10 27 Add support for M651 models V2 010 2011 02 18 Add support for configurable points registers V3 000 2011 09 08 Add support for M653 models split core CTs passwords analog events frozen counter events binary events Primary Un...

Страница 6: ...ASSISTANCE This product is warranted against defects in materials and workmanship for a period of one hundred and twenty 120 months from the date of their original shipment from the factory Products repaired at the factory are likewise warranted for eighteen 18 months from the date the repaired product is shipped or for the remainder of the product s original warranty whichever is greater Obligati...

Страница 7: ...ed by copyrights owned by one or more of the following entities Bitronics LLC 261 Brodhead Road Bethlehem PA 18017 Schneider Automation Inc One High Street North Andover MA 01845 Triangle MicroWorks Inc 2213 Middlefield Court Raleigh NC 27615 Freescale Semiconductor Inc 6501 William Cannon Drive West Austin TX 78735 gzip inflation uses code Copyright 2002 2008 Mark Adler inarp uses WinPcap which i...

Страница 8: ...he contents of the Safety Section Explanation of symbols and labels The meaning of symbols and labels that may be used on the equipment or in the product documentation is given below Installing Commissioning and Servicing Equipment connections Personnel undertaking installation commissioning or servicing work on this equipment should be aware of the correct working procedures to ensure safety The ...

Страница 9: ...chnical data section of the product documentation Before energizing the equipment the following should be checked Voltage rating and polarity CT circuit rating and integrity of connections Protective fuse rating Integrity of ground earth connection where applicable Equipment operating conditions The equipment should be operated within the specified electrical and environmental limits Current trans...

Страница 10: ...L 1 Decommissioning The auxiliary supply circuit in the equipment may include capacitors across the supply or to ground earth To avoid electric shock or energy hazards after completely isolating the supplies to the meter both poles of any dc supply the capacitors should be safely discharged via the external terminals before decommissioning 2 Disposal It is recommended that incineration and disposa...

Страница 11: ... basic measurement set with optional demand and harmonic values M3 2 0 2 revenue accuracy 3 001 Hz accuracy 4 Updates every 100ms 5 DNP3 or Modbus protocol available via configurable RS 232 RS 485 serial port 6 Available Ethernet protocol support for DNP3 TCP UDP or Modbus TCP 7 Web Based configuration via Ethernet service port 8 Wide range universal power supply 9 Rugged aluminum case 10 One mode...

Страница 12: ...uous 400Aac for 2 seconds Input Option C Not applicable Isolation Input Option 1 2500V ac minimum Input Option 5 2500V ac minimum Input Option C 2500V ac minimum with external split core current transformers Burden Input Option 1 0 016VA 1A rms 60Hz 0 0016ohms 60Hz Input Option 5 0 04VA 5A rms 60Hz 0 0016ohms 60Hz Input Option C Not applicable Frequency All Input Options 45 65 Hz VT PT Voltage Inp...

Страница 13: ...surement Inputs Voltage Withstand 2 5kV rms 1min input to case ground 2kV rms 1min input to input Frequency 45 65 Hz Sampling System Sample Rate 64 samples per cycle Data Update Rate Amps Volts Available every 100 ms Watts VAs VARs PF Available every 100 ms Number of Bits 16 ...

Страница 14: ... 1 of reading 20 to 150 V rms input to case 25ppm DegC Voltage Aux Only included with meters manufactured with the monitoring option AC DC Better than 1 0 of reading Current Input option 1 Internal Isolation 1A ac Better than 0 1 of reading 20uA 0 1A to 2 0A 20C to 70C Better than 0 1 of reading 50uA 0 01A to 0 1A 20C to 70C Minimum reading 1mA Input option 5 Internal Isolation 5A ac Better than 0...

Страница 15: ...Protection to IEC60529 2001 Pending Test Rear Panel IP 20 When equipment is mounted in an appropriately rated protective enclosure to NEMA or IP protection classifications as required for the installation Ratings are applicable for enclosure category 2 see definitions Altitude Up to and including 2000m above sea level Intended Use Indoor use Indoor Outdoor use when mounted in an appropriately rate...

Страница 16: ...ture rating 85C minimum Voltage VT AUX PWR Terminal Block accepts 22 10 AWG 0 35 to 5mm2 wire or terminal lugs up to 0 375 9 53mm wide Precautions must be taken to prevent shorting of lugs at the terminal block A minimum distance of 1 8 3mm is recommended between uninsulated lugs to maintain insulation requirements Recommended Torque 9 In Lbs 1 02 N m Cable temperature rating 85C minimum Serial Po...

Страница 17: ...ion Pollution Degree 2 Only non conductive pollution occurs except that occasionally a temporary conductivity caused by condensation is to be expected 1 4 Standards and Certifications 1 4 1 Revenue The M651 family of digital transducers exceeds the accuracy requirements of ANSI C12 20 and IEC 60687 or IEC62053 22 Type Nominal Current Certification B3 M3 1A 5A ANSI C12 20 0 2CA IEC 60687 or 62053 2...

Страница 18: ...tage 2006 95 EC Product and Generic Standards The following product and generic standards were used to establish conformity Low Voltage Product Safety IEC 61010 1 Edition 3 Issue Date 2013 02 01 Safety Requirements for Electrical Equipment for Measurement Control and Laboratory Use Part 1 General Requirements IEC 61010 2 30 Edition 1 Issue Date 2010 06 02 Safety Requirements for Electrical Equipme...

Страница 19: ... Level 4 exceeds 2 KV requirement Amplitude Signal Port 1 KV Additionally meets 2 KV Severity Level 3 Amplitude Telecom ports Ethernet 1 KV Current Voltage Surge Immunity EN 61000 4 5 2007 supersedes EN 61000 4 5 2006 Open Circuit Voltage 1 2 50 µs Short Circuit Current 8 20 µs Amplitude AC Power Port 2 KV common mode 1 KV differential mode Immunity to Conducted Disturbances Induced by Radio Frequ...

Страница 20: ...he M651 digital transducers are packaged in rugged aluminum case specifically designed to meet the harsh conditions found in utility and industrial applications The mounting plate panel view is shown in Figure 1 The mechanical dimensions are shown in Figure 2 Figure 1 M651 Mounting Plate View ...

Страница 21: ...21 ML0039 November 14 2013 Copyright 2013 Bitronics LLC Figure 2 Mounting and Overall Dimensions M651 back panel may vary as a result of options ordered ...

Страница 22: ... of the supply input prior to installation The fuse must carry a voltage rating appropriate for the power system on which it is to be used A 3 Ampere slow blow UL Listed fuse in an appropriate fuse holder should be used in order to maintain any UL product approval 2 5 Supply Mains Disconnect Equipment shall be provided with a Supply Mains Disconnect that can be actuated by the operator and simulta...

Страница 23: ...by side on a standard 5 25 high panel Leave adequate space surrounding the instrument when determining mounting arrangements 2 7 Cleaning Cleaning the exterior of the instrument shall be limited to the wiping of the instrument using a soft damp cloth applicator with cleaning agents that are not alcohol based and are non flammable and non explosive ...

Страница 24: ...r the 4 20mA analog transducer output option However it is also possible to have a meter without this option port See Appendix A1 for detailed wiring diagrams covering the CT VT measurement inputs Refer to the appropriate section in this user manual when wiring either the serial communication option or either analog transducer output option whichever applies to the option port for your meter Figur...

Страница 25: ... indicate that the unit is powered ON It is located on the right of the rear panel There is an option that allows the voltage across the Auxiliary Power input voltage across terminals L1 and L2 to be monitored This monitoring option is only found in 50 Series SCADA meters that have been manufactured with this monitoring option Refer to the order guide to verify whether the meter is made with this ...

Страница 26: ...inputs Distinctions are based on the current option ordered and the physical constructions The 1 Amp and 5 Amp current inputs current input options 1 and 5 respectively feature 10 32 terminals to assure reliable connections This results in a robust current input CT connection with negligible burden to ensure that the user s external CT circuit can t ever open circuit even under extreme fault condi...

Страница 27: ...uts to the meter s current input terminal block Isolation is provided from the external Split Core CTs Recommended torque is 9 In Lbs 1 02 N m 3 4 Serial Ports See section 4 2 The M651 transducers are equipped with an optional serial port The port is software user configurable for RS 232 or RS 485 The RS 232 drivers support full and half duplex modes See Figures 5 6 for signal assignments 3 5 Ethe...

Страница 28: ...IP Address in your web browser s address bar When the web server screen appears click on the Settings tab Type the new Network settings IP address Subnet mask Gateway in the appropriate fields and click the Apply button to send the new network settings to the meter Reboot the meter for the configuration change to take effect The M651 uses the following port numbers for each type of protocol Protoc...

Страница 29: ...ibraries which are bundled in the WinPcap Installer for Windows This can be downloaded from www winpcap org Installation requires Administrator privileges Examples to poll the 1st IPv4 interface inarp v 50series CTRL C stops the scan to poll the IPv4 interface associated with 192 168 1 1 use inarp v i 192 168 1 1 50series or to poll a specific mac use inarp v i 192 168 1 1 00 D0 4F 03 00 15 The in...

Страница 30: ...her M65x s Before initiating the firmware upgrade if you are planning to use a configuration that has already been setup in the M651 then you should first go to the Load Store Settings page and click on the Get File button to save the IED configuration to your computer if you will be using a default configuration this step is not necessary Use the File Save dialog window to select the location on ...

Страница 31: ...your web browser s cache delete the temporary internet files after updating the firmware so that the new content will be loaded into your browser Please refer to your browser s help file on how to clear the cache A useful keyboard shortcut common to Internet Explorer Firefox and Chrome is CONTROL SHIFT DELETE which will take you directly to the relevant dialog panel Carefully select the items to b...

Страница 32: ...mended torque ratings for the terminal block wire fasteners are listed in the Physical Specifications table section 1 3 Transient Voltage Suppressor TVS clamp devices are used on the serial port as the method of protection The serial port is clamped to a voltage of 16 7 18 5V nominal 24 46V max The clamps are rated for a peak pulse current of 24 6 max 4 1 1 RS485 Connections Note that various prot...

Страница 33: ...33 ML0039 November 14 2013 Copyright 2013 Bitronics LLC Figure 5 Typical RS 485 Cable Wiring ...

Страница 34: ...34 ML0039 November 14 2013 Copyright 2013 Bitronics LLC Figure 6 RS 232 Cable Wiring Diagram ...

Страница 35: ...abled by leaving the new password field blank and clicking the Change Password button The default from the factory is to have no password set The password is used to authenticate a session when prompted The session authentication will last until the user clicks the Log Out link on the upper right corner of the Web Interface or after five minutes elapses Authentication will be required when attempt...

Страница 36: ...configured for Optimal Resolution and the Bitronics Legacy register set When using AOCs that communicate via Modbus NAO8101 and NAO8102 the M651 serial port must be set for an RxD to TxD Delay of 10ms for proper operation Serial port and connection information is shown below Refer to Figure 5 for interconnection As stated previously the AOC address must match the protocol address assigned to the M...

Страница 37: ...face Internet browsers supported are Firefox Internet Explorer Safari and Google Chrome The Home page screen should appear as shown below Home page From the home screen you can select from the following tabs Data This page displays current data measurements Resets This page allows certain quantities to be reset Settings This page allows the user to change the configuration settings Making M651 con...

Страница 38: ...38 ML0039 November 14 2013 Copyright 2013 Bitronics LLC Data page Two views Instantaneous and Demands ...

Страница 39: ...set to specific non zero values by entering the desired reset value in the appropriate field as a whole number and clicking Apply Any fields that are left blank will be reset to zero Settings page Click on one of the settings categories Identity Input Network Serial Port Protocol Load Store Settings Password Security or Firmware Upload to be taken to the next page ...

Страница 40: ...40 ML0039 November 14 2013 Copyright 2013 Bitronics LLC Contact Page ...

Страница 41: ...gs Note that if no serial port is ordered this setting won t appear and if the transducer output option is selected then that setting will replace serial Protocol This page allows user configuration of the protocols DNP or Modbus Load Store Settings This page allows you to save and retrieve settings for the M651 meter Password Security This page allows the user to set a password and to enable or d...

Страница 42: ...42 ML0039 November 14 2013 Copyright 2013 Bitronics LLC Identity ...

Страница 43: ...43 ML0039 November 14 2013 Copyright 2013 Bitronics LLC Input ...

Страница 44: ...44 ML0039 November 14 2013 Copyright 2013 Bitronics LLC Network Serial Port if option ordered ...

Страница 45: ... Disabled TCP ASCII or RTU For DNP3 the selections are Disabled Serial or TCP Under DNP3 clicking on the Advanced button reveals more advanced functions that may or may not need to be changed Clicking on the Basic button hides the advanced functions A detailed description of the setup parameters for Modbus and DNP3 can be found in the Appendix of the respective protocol manuals There are both fixe...

Страница 46: ...46 ML0039 November 14 2013 Copyright 2013 Bitronics LLC Modbus DNP3 ...

Страница 47: ...47 ML0039 November 14 2013 Copyright 2013 Bitronics LLC DNP Serial DNP TCP ...

Страница 48: ...48 ML0039 November 14 2013 Copyright 2013 Bitronics LLC Modbus RTU Modbus TCP ...

Страница 49: ...49 ML0039 November 14 2013 Copyright 2013 Bitronics LLC Load Store Device Settings Password Security Settings ...

Страница 50: ...50 ML0039 November 14 2013 Copyright 2013 Bitronics LLC Firmware Upload ...

Страница 51: ...ed on these ratios The web interface allows you to choose either 1A or 5A for the denominator and the primary value is entered directly The PT ratio is to 1 when entering through the front display The web allows other denominators 110 115 or 120 to be used Refer to the appropriate protocol manual for information on changing transformer ratios 6 2 Current The M651 has three current inputs with an i...

Страница 52: ...e can serve as the reference phase On 2 element systems one of the phase to neutral voltages is missing and the M651 must create it from the vector sum of the other two phase to neutral voltages In order to configure the M651 for 2 element mode and which phase voltage is missing select one of the following 2 5 element A 2 5 element B or 2 5 element C 6 4 Voltage Aux The M651 M3 provides a measurem...

Страница 53: ...ges is fabricated as described in Section 6 3 In all other respects the 2 element connection is identical to the 3 element connection 6 6 1 Geometric VA Calculations 2 2 TOTAL TOTAL TOTAL GEOMETRIC VA Watts VARs This is the traditional definition of Total VAs for WYE or DELTA systems and is the default method for Total VAs calculation The value of Total VAs calculated using this method does not ch...

Страница 54: ...54 ML0039 November 14 2013 Copyright 2013 Bitronics LLC Figure 7 Sign Conventions for Power Measurements P is Power Q is VARS and S is VA ...

Страница 55: ...er setting that accounts for the sum of the full load watt losses from all sources B Meter setting that accounts for the transformer s no load watt losses C Meter setting that accounts for the sum of the full load VAR losses from all sources D Meter setting that accounts for the transformer s no load VAR losses E Meter setting that accounts for any system losses proportional to the uncompensated p...

Страница 56: ...oss compensation in the 50 Series can be found in the documentation library of the Novatech website www novatechweb com 6 8 Energy Separate values are maintained for both positive and negative Watt hours positive and negative VAR hours and VA hours for each feeder These energy quantities are calculated every cycle from the Total Watts Total VARs and Total VAs and the values are stored into non vol...

Страница 57: ... 15 minutes although the M651 can accommodate other demand intervals Section 6 10 5 The M651 generates a demand value using modern microprocessor technology in place of heating and cooling circuits it is therefore much more accurate and repeatable over a wide range of input values In operation the M651 continuously samples the basic measured quantities and digitally integrates the samples with a t...

Страница 58: ...pon power up all Present Volt Demands are reset to zero The Maximum Volt Demands and Minimum Volt Demands are initialized to the minimum and maximum values recalled from non volatile memory In order to prevent the recording of false minimums a new Minimum Volt Demand will not be stored unless two criteria are met First the instantaneous voltage for that particular phase must be greater than 20Vrms...

Страница 59: ...nd power The range of demand intervals is 10 to 9999 seconds These settings can be accomplished by using the front display or web server setup 6 11 Harmonic Measurements All harmonic and harmonic related measurements are calculated every 100 ms In the following sections Harmonic 0 indicates DC Harmonic 1 indicates the fundamental and Harmonic N is the nth multiple of the fundamental 6 11 1 Voltage...

Страница 60: ... neutral and is set by changing the denominator values within the M651 Note that in Equation 3 if IL equals the fundamental this Equation becomes Equation 2 Harmonic Distortion In the instrument this can be achieved by setting the denominator to zero amps in which case the instrument will substitute the fundamental and calculate Current THD Note that there is a separate writeable denominator for e...

Страница 61: ...Equation 4 is used by the M651 to determine K Factor where h is the harmonic number and Ih is the magnitude of the hth harmonic K Factor is measured on each of the three phases of amps however there is no Total K Factor K Factor like THD and PF does not indicate the actual load on a device since all three of these measurements are ratios Given the same harmonic ratio the calculated K Factor for a ...

Страница 62: ...The Heartbeat State Counter is a full 32 bit counter that rolls over at 4 294 967 295 4 294 967 seconds The counter starts at zero on power up and is NOT stored in non volatile memory M651 transducers have several self tests built in to ensure that the instrument is performing accurately The results of these self tests are available in the Health Check register which is a simple 16 bit binary valu...

Страница 63: ...1 PT Scale Factor Average Max VAs A B C Total1 PT Scale Factor Divisor Average Min VAs A B C Total1 TDD Amps A B C Residual1 Class 0 Response Setup1 TDD Denominator A B C 1 CT Scale Factor THD Volts AN BN CN AB BC CA1 CT Scale Factor Divisor Uncompensated VARs Total Demand Max Amps A B C Residual Uncompensated Watts Total Demand Max Fund Amps A B C Residual1 VA Hrs Demand Amps A B C Residual1 VAR ...

Страница 64: ...Hz depending on model Samples of all bus signals are taken using a 16 Bit A D converter effectively creating 64 snapshots of the system voltage and current per cycle 6 15 1 Sampling Rate and System Frequency The sampling rate is synchronized to the frequency of any of the bus voltages prioritized as follows V1A N V1B N V1C N This is the frequency reported as the System Frequency The sampling rate ...

Страница 65: ...mA Current Range Output Range 0 to 1mA into 10K ohms or less Overload to 2 1mA into 5K ohms or less Resolution 0 22uA Output Resistance 500 ohm 4 20mA Current Range Output Range 4 to 20mA Resolution 1 1uA Max Loop Voltage 40Vdc Max Voltage Drop 2 3V 20mA 4 20mA Internal Loop Supply Max Output Voltage 6V 60mA Accuracy 0 25 of Full Scale Input Data Update Rate poll rate 100ms minimum Input Capacitan...

Страница 66: ...66 ML0039 November 14 2013 Copyright 2013 Bitronics LLC Figure 8 0 1mA Transducer Output Connections ...

Страница 67: ...67 ML0039 November 14 2013 Copyright 2013 Bitronics LLC Figure 9 4 20mA Transducer Output Connections ...

Страница 68: ...tion on the Settings Input page to invert the CT Polarity see screen shot clip below This option is the equivalent of swapping the connections in the connection diagrams below at the HI and LO terminals for each CT input that is swapping 7 and 10 8 and 11 9 and 12 The effect is a 180 degree phase shift in the current signals ...

Страница 69: ...69 ML0039 November 14 2013 Copyright 2013 Bitronics LLC Figure 10 Signal Connections M651 ...

Страница 70: ...70 ML0039 November 14 2013 Copyright 2013 Bitronics LLC Figure 10 Signal Connections M651 ...

Страница 71: ...71 ML0039 November 14 2013 Copyright 2013 Bitronics LLC Figure 11 50 Series External Split Core Signal Connections ...

Страница 72: ...72 ML0039 November 14 2013 Copyright 2013 Bitronics LLC ...

Страница 73: ...opper connection is used to an external fiber converter 7 Verify that the LINK LED on the converter is lit on at least one side Both sides need to be lit for a valid connection to be established 8 At least one brand of converters will not output an optical idle unless it receives a forced 10 Mb copper link pulse for some reason auto negotiation pulses confuse it Some hubs switches will not output ...

Страница 74: ...74 ML0039 November 14 2013 Copyright 2013 Bitronics LLC ...

Страница 75: ...75 ML0039 November 14 2013 Copyright 2013 Bitronics LLC ...

Страница 76: ...76 ML0039 November 14 2013 Copyright 2013 Bitronics LLC ...

Страница 77: ...77 ML0039 November 14 2013 Copyright 2013 Bitronics LLC ...

Страница 78: ... with standards Note added to Figure 2 Sect 3 0 revised Figure 3 became 3A Figure3B added Sect 3 1 revised with monitoring option for L1 L2 power input Revise Sect 3 1 1 information per Sect 1 3 Sect 3 2 Added references VA VB VC VN Sect 3 3 Added references IA IB IC and current options for 1A 1 5A 5 and external split core C New dimension drawing to correct error with metric and added note on com...

Страница 79: ...79 ML0039 November 14 2013 Copyright 2013 Bitronics LLC ...

Страница 80: ...Bitronics LLC 261 Brodhead Road Bethlehem PA 18017 610 997 5100 Fax 610 997 5450 www novatechweb com bitronics ...

Отзывы:

Нет отзывов