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Rectifier (Switch Mode Technology) Single Phase Switch Mode Unit

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Rectifier (Switch Mode Technology) Single Phase Switch Mode Unit 1 of 4 Rectifier (Switch mode Technology) Single Phase Switch Mode Unit Generic SMU Data Sheet Design & Operating Detail: Design Life 25 Years Operating Ambient Temperature -20 to 70oCelsius (-4 to 122o Fahrenheit) Operating Ambient Humidity 20 to 90% RH non-condensing DC Stray Current Interference +/- 20V DC Minimum AC Stray Current Interference 35V AC Minimum Supply Voltage Single Phase 90 - 264 VAC 47-63Hz Power Factor 0.95@230VAC Enclosures Standard Enclosure IP65 3CR12 Powder Coat Cabinet, Polycarbonate, or as per Client request Cooling Natural Convection Continuous DC Output 75Watt Series - 5V 15A / 12V 6.3A / 24V 3.2A / 48V 1.6A 150W Series - 12V 12.5A / 15V 10A / 24V 6.3A / 48V 3.2A 300W Series – 12V 25A / 24V 12.5A / 48V 6.25A 800W Series - 12V 66.7A / 15V 53.4A / 24V 33.5A / 48V 16.7A / 60V 13.4A 1500W Series – 12V 125A / 15V 100A / 24V 62.5A / 48V 31.3A / 60V 25A 3000W Series -12V 200A / 15V 160A / 24V 125A / 48V 62.5A / 60V 50A Options Can accommodate client specific requirements e.g. DC output or cabinet color Output Ripple 200mVp-p Max. CONTROL MODES Potential control - Mode 1 Full Digital Control of Pipe to soil potential (Pipe to Reference Electrode) Reference Electrode Input 3 off > 1GΩ input impedance +/-10V or +/- 20V @ 12bit accuracy. One common Mode and 2 x Isolated Accuracy 12 Bit accuracy - +/- 10V = 5mV, +/- 20V = 10mV Current control - Mode 2 Full Digital Control of Rectifier output current Current Shunt Feedback 2 off 50mV DC current shunt or Hall effect transducer. One common mode and one isolated Accuracy 12 Bit accuracy Voltage control - Mode 3 Full Digital Control of Rectifier output Voltage Voltage Feedback Voltage divider network +/-2.5VDC Accuracy 12 Bit accuracy - 50V = 6Mv Control Revision: 4 Doc No. Title: Single Phase Switch Mode Unit Date: 22nd July 2019 Generic SMU Data Sheet Date: 10th October 2018 Approved: A J Raath Author: J Arnold Date: 7/22/2019 2 of 4 MAN/MACHINE INTERFACE (User Controls) LCD Display 4 x 20 Character LCD Monochromatic Display Mode Selection Tactile Pushbutton x 3 = Scroll up/Scroll down and enter Set point Adjustment Menu and Tactile push button Current Limit Menu and Tactile push button Voltage Limit Menu and Tactile push button Input & Output Status Monitoring Backlit LCD Display Output Voltage display DC Volts on LCD Display /Separate Analog Display optional 75mm x 75mm 4mm Banana sockets Output Current Display Amps on LCD Display / Separate Analog Display optional 75mm x 75mm 4mm Banana sockets Reference Potential Display Isolated and or common mode Bi Polar DC mV on LCD Display / Optional Digital Display minimum 12mm-15mm height 4mm Banana sockets Detachable Display Panel To incorporate Analog Voltage and Current Display with digital Reference Potential Display Umbilical cord to appropriate connection onto chassis plate Selected mode Constant Volts/Constant Amps/ Constant Pot on LCD Display Control Voltage 0-5V as a proportion of FSD 255 on LCD display Expansion Modules Incorporated I² C Buss MACHINE/ MACHINE INTERFACE (Remote Monitoring) Modbus (3X register call)/ Profibus Reference Potential Measured Output Volts Measured Output Current Measured 8 Potential free contact inputs- DC & AC Fuse Fail; MCB 1; MCB4; Panic push button; Phase rotation, Fail & Imbalance; Door Indication. 2 x galvanically Isolated Analog inputs - Bypass current & Battery Voltage Modbus (4X Command register) / Profibus Control mode selection Voltage limit Current Limit Reference Set point for Voltage, Current & Potential controls Digital output settings for Potential free output contacts 1, 2 &3 2 x galvanically Isolated Analog outputs - 0-5V 10 Bit resolution PWM Control Revision: 4 Doc No. Title: Single Phase Switch Mode Unit Date: 22nd July 2019 Generic SMU Data Sheet Date: 10th October 2018 Approved: A J Raath Author: J Arnold Date: 7/22/2019 3 of 4 OUTPUT METERS AND ALARMS (Backlit Monochromatic 4 x 20-character LCD Display Variable Contrast) DC Output no Current hour meter LCD totalizing Display triggering at >/ =10mA repeatability 100% (Client defined threshold optional) Display of input status on Potential free Byte format on controller LCD display inputs DC Fuse fail Bi Color LED on Instrument housing AC Fuse/MCB Fail Bi Color LED on Instrument housing Phase fail/Rotation& Under/over voltage Bi Color LED on Instrument housing Dynamic Alarms Alarm setpoint on Output voltage, Current and Reference potential. TRANSIENT AND SURGE PROTECTION Coarse Output Protection 100kA (8/20uS) DC Spark over 800V impulse sparkover @ 5kV/us Fine Output circuitry Protection 40kA (8/20us) DC Clamp 140/280 & 460VDC Signal Surge & Transient Inductance, Transorbe & Limiting resistor with MOV. 25kA EARTHING/GROUND REQUIREMENTS Dedicated earthing 4 ohms minimum with certificate of compliance according to NFPA 70 Article 250 /SANS 10142-1 TERMINATION FIXTURES Appropriately rated Din Rail Termination shrouded and fixed. Input Mains 2.5mm2 cross-sectional area cable Reference 2.5mm2 cross-sectional area cable - inside TRU Monitor 2.5mm² cross-sectional area cable - inside TRU Positive Aluminum Bus bar on flanged isolation stand off Negative Aluminum Bus bar on flanged isolation stand off Earth / Ground Aluminum Bus bar on threaded rod stand off RELEVANT STANDARDS IEC 60947-1 Low Voltage switch gear and control Part 1: General rules IEC 60076 - 3 Power Transformers Part 3 Insulation levels, dielectric tests and external clearances in air SANS 780 Distribution Transformers BS 171 Air cooled Transformers SANS 1507-1 through 6 Electric cables with extruded solid dielectric insulation for fixed installations (300/500V to 1 900/3 300V) Part 1 through 6 SANS 10089-2 The petroleum industry Part 2: Electrical and other installations in the distribution market sector SANS 10313 Protection of structures against lightning Control Revision: 4 Doc No. Title: Single Phase Switch Mode Unit Date: 22nd July 2019 Generic SMU Data Sheet Date: 10th October 2018 Approved: A J Raath Author: J Arnold Date: 7/22/2019 4 of 4 SANS 10142 - 1 Wiring of premises Part 1: Low voltage installations. UL489A Low Voltage AC switch gear UL 489 A DC low Voltage DC Switchgear CSA C22.2 No. 5-13 Standard for safety for Molded case circuit breakers Control Revision: 4 Doc No. Title: Single Phase Switch Mode Unit Date: 22nd July 2019 Generic SMU Data Sheet Date: 10th October 2018 Approved: A J Raath Author: J Arnold Date: 7/22/2019 .
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