Alstom i4MC Manual
  1. Manuals
  2. Brands
  3. Alstom Manuals
  4. Transducer
  5. i4MC
  6. Manual
Alstom i4MC Manual

Alstom i4MC Manual

Istat single-phase transducers
Hide thumbs
Table of Contents

Advertisement

Quick Links

i4MC&V/EN/M/C © 2014. ALSTOM, the ALSTOM logo and any alternative version thereof are trademarks and service marks of ALSTOM. The other names
mentioned, registered or not, are the property of their respective companies. The technical and other data contained in this document is provided for information only.
Neither ALSTOM, its officers or employees accept responsibility for, or should be taken as making any representation or warranty (whether express or implied), as to
the accuracy or completeness of such data or the achievement of any projected performance criteria where these are indicated. ALSTOM reserves the right to revise or
change this data at any time without further notice.
I4MC & i4MV
iSTAT Single-Phase Transducers
Manual
i4MC & i4MV
iSTAT Single-Phase Transducers
Publication Reference:
i4MC&V/EN/M/C
GRID

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the i4MC and is the answer not in the manual?

Questions and answers

Summary of Contents for Alstom i4MC

  • Page 1 Neither ALSTOM, its officers or employees accept responsibility for, or should be taken as making any representation or warranty (whether express or implied), as to the accuracy or completeness of such data or the achievement of any projected performance criteria where these are indicated. ALSTOM reserves the right to revise or...

  • Page 3: Safety Section

    M/C User Manual Page 1 iSTAT i4MC&V SAFETY SECTION This Safety Section should be read before commencing any work on the equipment. Health and Safety The information in the Safety Section of the product documentation is intended to ensure that products are properly installed and handled in order to maintain them in a safe condition.

  • Page 4: Installing, Commissioning And Servicing

    M/C User Manual Page 2 iSTAT i4MC&V 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 product documentation should be consulted before installing, commissioning or servicing the equipment.

  • Page 5: Equipment Operating Conditions

    M/C User Manual Page 3 iSTAT i4MC&V EQUIPMENT OPERATING CONDITIONS The equipment should be operated within the specified electrical and environmental limits. Current transformer circuits Do not open the secondary circuit of a live CT since the high level voltage produced may be lethal to personnel and could damage insulation.

  • Page 6: Technical Specifications

    M/C User Manual Page 4 iSTAT i4MC&V TECHNICAL SPECIFICATIONS Protective fuse rating The recommended maximum rating of the external protective fuse for this equipment is 6A, Red Spot type or equivalent, unless otherwise stated in the technical data section of the product documentation.

  • Page 7: Table Of Contents

    DECOMMISSIONING AND DISPOSAL TECHNICAL SPECIFICATIONS Protective fuse rating INTRODUCTION General KEY MESSAGES ISTAT i4Mx Family 1.3.1 i4MV class 0.5 Voltage Transducer. 1.3.2 i4MC class 0.5 Current transducer 1.3.3 Software: Measurements Hardware features Communications Inputs and Outputs HARDWARE The Product Mounting...

  • Page 8: Istat I4Mc&V

    3.7.1 Password setting 3.7.2 Password modification Analogue output 3.8.1 Analogue output module Reset Operations 3.9.1 Reset MD values on i4MC 3.9.2 Reset the last MD period on i4MC INSTRUMENTATION Measurements Glossary Supported Measurements 4.3.1 Voltage 4.3.2 Current 4.3.3 Frequency 4.3.4 Harmonics(THD) 4.3.5...

  • Page 9: Istat I4Mc&V

    M/C User Manual iSTAT i4MC&V Page 7 TECHNICAL DATA WIRING DIAGRAMS RELATED DOCUMENTS APPENDIX A: MODBUS COMMUNICATION PROTOCOL APPENDIX B: CALCULATIONS & EQUATIONS 10.1 Definitions of symbols 10.2 Equations...
  • Page 10 User Manual i4MC&V/EN M/C iSTAT i4MC&V Page 8 BLANK PAGE...

  • Page 11: Introduction

    M/C User Manual iSTAT i4MC&V Page 9 INTRODUCTION General i4MC & i4MV (i4MC/V) are single phase transducers aimed at the medium voltage and low voltage market segments throughout the world. i4MC/V offers:  High accuracy measurements  A cost-effective solution for Medium Voltage and Low Voltage markets ...

  • Page 12: Software

    The communications are used for programming the transducer or for monitoring measurements. In addition a USB port (mini type) is always provided on the underside of the i4MC/V for programming the transducer before installation. The USB port cannot be used when the i4MC/V is installed on the DIN Rail.

  • Page 13: Hardware

    The communication protocol available is Modbus RTU, which enables the remote viewing of measurements and the viewing and setting of system parameters. 2.4.1 RS232 or RS485 communications The i4MC/V transducers can be supplied with either a RS232 or RS485 port (COM) via terminals.

  • Page 14: Usb Communications

    2.4.2 USB communications The i4MC/V transducer is always supplied with a USB port on the underside, under a removable plastic cover, for programming using an USB type mini B connector. Note: The USB port has only Basic Insulation and can only be used when there is no wiring connected to the main terminals.

  • Page 15: Analogue Output

    Page 13 Analogue output The i4MC/V is supplied with one analogue output, which can be set within the range 0 - 20mA or 0 - 10V. The analogue output can be configured to represent any of the instantaneous measured values. The outputs can be set via the communications link.

  • Page 16: Settings

    User Manual i4MC&V/EN M/C iSTAT i4MC&V Page 14 SETTINGS Introduction Instrument settings can be remotely modified with the QDSP software, when connected to a QDSP Software QDSP is a software tool for complete monitoring of measuring instruments, connected to a PC via serial or USB communication.

  • Page 17: Setting Procedure

    The averaging interval defines the refresh rate of measurements for communications display. 3.4.3 Maximum Demand calculation (MD mode) The i4MC provides maximum demand values using the Thermal function. Connection The setting of the connection parameters must reflect the actual applications or the...

  • Page 18: Setting Of Current Or Voltage Ratios

    User Manual i4MC&V/EN M/C iSTAT i4MC&V Page 16 All of the settings in this section should be defined before the settings for the analogue and alarm outputs, as changes to this section may automatically change the measurements and output settings FIGURE 3-2: CONNECTION 3.5.1...

  • Page 19: Communication

    The BP password is available from the customer support department of Alstom Grid, and is entered instead of password PL1 and/or PL2. The serial number is stated on the product label or can be read with QDSP and must be supplied when requesting the BP.
  • Page 20 User Manual i4MC&V/EN M/C iSTAT i4MC&V Page 18 3.8.1.1 Output parameter Define the Measured or calculated parameter that is to be output on the specific analogue output. 3.8.1.2 Output range The analogue output can be configured to one of six hardware output ranges within which the analogue output will operate.

  • Page 21: Reset Operations

    M/C User Manual iSTAT i4MC&V Page 19 Reset Operations 3.9.1 Reset MD values on i4MC Current and stored MD’s are reset. 3.9.2 Reset the last MD period on i4MC Current MD value is reset.

  • Page 22: Instrumentation

    63rd harmonic (at 50Hz). The i4MC/V reads 128 samples per cycle (at 50Hz) and the true RMS measurement is obtained using these sampled values. At higher signal frequencies the number of samples reduces and the number of harmonics included in the calculations is also reduced.

  • Page 23: Voltage

    This sum of the powers is a geometric total, formed by taking the square root of the sum of the squares of the amplitude of each of the harmonics. The i4MC provides %THD values for the phase current, and the i4MV %THD value for the voltage.
  • Page 24 User Manual i4MC&V/EN M/C iSTAT i4MC&V Page 22 Thermal function 10 11 12 13 14 15 16 17 18 19 20 Time [min.] Present MD MD peak Input...

  • Page 25: Communications

    COM can be RS232 or RS485 The communications port can be used for settings and the monitoring of data. The communication parameters of the i4MC/V can be obtained by using the ‘Scan the network’ feature in the QDSP setting software.

  • Page 26: Technical Data

    57.7 ……230V Overload 277V permanently 2 x Un for 10 seconds Minimum range 10mV sinusoidal Burden <0.5 VA Current Input (i4MC) Nominal current (In) Rating 1A/5A Overload (thermal) 15A continuously (acc. to IEC/EN 60 688) 20 × I ; 5 × 1s...
  • Page 27 M/C User Manual iSTAT i4MC&V Page 25 ACCURACY RMS Current (I ) – i4MC 0.5 (0.3**) RMS Voltage (U ) – i4MV 62.5V, 125V L-N 0.5 (0.3**) 250V L-N 0.5 (0.3**) 500V L-N 0.5 (0.3**) Frequency (actual) 50/60 Hz 0.02Hz...
  • Page 28 User Manual i4MC&V/EN M/C iSTAT i4MC&V Page 26 COMMUNICATION RS232 RS485 Type of connection Direct Network Direct Max. connection length 1000 m  32 Number of bus stations − − Terminals Screw terminals USB-mini B Protection class II, 500V ACRMS...
  • Page 29 M/C User Manual iSTAT i4MC&V Page 27 AMBIENT CONDITIONS Climatic Usage group II Ambient -10…15…45…55°C Acc. To IEC/EN 60688 Temperature Temperature Operation -30 to +70C Storage -40 to +70C Humidity ≤ 93%RH non condensing Altitude ≤ 2000m MECHANICAL Dimensions W45 ×...

  • Page 30: Wiring Diagrams

    User Manual i4MC&V/EN M/C iSTAT i4MC&V Page 28 WIRING DIAGRAMS FIGURE 10-1: EXTERNAL WIRING DIAGRAM: I4MV FIGURE 10-2: EXTERNAL WIRING DIAGRAM: I4MC FIGURE 10-4: ENCLOSURE DIMENSIONS...

  • Page 31: Related Documents

    M/C User Manual iSTAT i4MC&V Page 29 RELATED DOCUMENTS Document i4MT Multifunction Transducer Manual QDSP Technical Manual...

  • Page 32: Appendix A: Modbus Communication Protocol

    MODBUS Parameter Register Type Start Frequency 30105 30106 30107 30108 U1 THD% 30182 Internal Temperature 30181 Register table for the actual measurements for i4MC MODBUS Parameter Register Type Start Frequency 30105 30106 30126 30127 I1 THD% 30188 Internal Temperature 30181...
  • Page 33 MODBUS Parameter Register Type Start 30049 30050 FREQUENCY 30057 30058 U1 THD% 30639 Internal Temperature 30126 Register table for the actual measurements for i4MC MODBUS Parameter Register Type Start Frequency 30049 30050 30076 30077 I1 THD% 30645 Internal Temperature 30126...
  • Page 34 User Manual i4MC&V/EN M/C iSTAT i4MC&V Page 32 Data types decoding Type Bit mask Description Unsigned Value (16 bit) Example: 12345 = 3039(16) Signed Value (16 bit) Example: -12345 = CFC7(16) Signed Long Value (32 bit) Example: 123456789 = 075B CD 15(16)

  • Page 35: Appendix B: Calculations & Equations

    M/C User Manual iSTAT i4MC&V Page 33 APPENDIX B: CALCULATIONS & EQUATIONS 10.1 Definitions of symbols Symbol Definition Sample factor Average interval Phase voltage (U or U Phase-to-phase voltage (U or U Total number of samples in a period Sample number (0 ≤...
  • Page 36 User Manual i4MC&V/EN M/C iSTAT i4MC&V Page 34 Current THD  − value of first harmonic      n − number of harmonic Voltage THD  − value of first harmonic      n − number of harmonic...
  • Page 38 PXXX Product Description Alstom Grid © - ALSTOM 2014. ALSTOM, the ALSTOM logo and any alternative version thereof are trademarks and service marks of ALSTOM. The other names mentioned, registered or not, are the property of their respective companies. The technical and other data contained in this document is provided for information only.

This manual is also suitable for:

I4mv

Table of Contents