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Summary of Contents for DEWESOFT DC-CT
- Page 1 DC-CT sensors TECHNICAL REFERENCE MANUAL DC-CT V23-1...
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Page 2: Table Of Contents
1.2.1. Device Technical Reference Manual 1.2.2. DEWESoft® User Manual 2. Safety instructions 3. Getting started 3.1. Software installation 3.2. Connecting standalone DC-CT® unit 3.2.1. List of required equipment: 3.2.2. Wiring 3.2.3. Powering the unit 4. Product overview 4.1. Main features 4.2. - Page 3 7. Safety instructions 7.1. Safety symbols in the manual 7.2. General Safety Instructions 7.2.1. Environmental Considerations 7.2.2. Product End-of-Life Handling 7.2.3. System and Components Recycling 7.2.4. General safety and hazard warnings for all Dewesoft systems 7.3. Documentation version history DC-CT V23-1 3/30...
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Page 4: About This Document
DEWESoft® and certain parts of the program. The latest version of the DEWESoft® tutorials can be found here: https://dewesoft.com/download/manuals In the Software Manuals section click the download link of the DEWESoft X User Manual entry. DC-CT V23-1 4/30... -
Page 5: Safety Instructions
● 3.1. Software installation For optimal working, we recommend that you install the latest version of Dewesoft. If you already have installed the older version Dewesoft is recommended that you find the newest version on the website under the Support/Downloads/DewesoftX section. You can also check if a newer version is available in the software. -
Page 6: Connecting Standalone Dc-Ct® Unit
DSI-DC-CT-1000-0.3M Measurement device Any DEWESoft device with LV, STG, STGS or UNI channel You can connect up to 4 DC-CT sensors within one system. Warning Never operate the DC-CT transducers without power supply (SIRIUSi-PWR-MCTS2, SIRIUS_ir-PWR-MCTS2). The DC-CT transducer can be damaged! -
Page 7: Wiring
Do NOT connect the male DB9 connector of the DSI cable to the female connector on the MCTS device. In this case TEDS chip will be damaged! 2. Use D9m-D9f-Xm-MCTS to connect your DC-CT sensor to the SIRIUS-PWR-MCTS2 device. Connect the male DB9 connector of the cable to the MCTS device and the female DB9 connector to your DC-CT sensor. -
Page 8: Product Overview
4. Product overview 4.1. Main features The DC-CT-1000I-S22DA is a compact and accurate 1000 A zero-flux current transducer based on ISOTEL proprietary technology and patented Platiše Flux Sensor (PFS). Features a typical D-SUB connector with 22 mm opening in Aluminium chassis delivering 500 kHz of flat bandwidth, 100 ppm linearity, and total offset including hysteresis below 100 ppm FS. -
Page 9: The Dc-Ct Technology
TECHNICAL REFERENCE MANUAL 4.2. The DC-CT technology The DC-CT technology at its core consists of a high-permeability core and a zero-flux closed-loop null method measurement principle, using the innovative Platiše Flux Sensor (PFS) zero-flux sensor. The DC-CT-1000I in addition comprises zero-flux, or null method to achieve highest accuracy and compensates non-linearities caused by the magnetic material, in similar way as other closed-loop DC-CT sensors. -
Page 10: A Brief Comparison Of Different Current Measurement Technologies
Accuracy range Bandwidth DC-CT DC/AC High High Excellent Very High Flux-Gate DC/AC High High Excellent Excellent Hall DC/AC High Medium Medium Medium Shunt DC/AC Medium Medium Good High Rogowsky High High Goof Medium High Medium Medium Medium DC-CT V23-1 10/30... -
Page 11: Dc-Ct Sensors
DC-CT TECHNICAL REFERENCE MANUAL 5. DC-CT Sensors 5.1. DC-CT-1000I-S22DA DC-CT-1000I-S22DA: front DC-CT-1000I-S22DA: back DC-CT V23-1 11/30... -
Page 12: Dc-Ct-1000I-S22Da: Specifications
DC-CT TECHNICAL REFERENCE MANUAL 5.1.1. DC-CT-1000I-S22DA: Specifications DC-CT-1000I-S22DA Type Zero-Flux Primary Current Range DC (max) 1000 A Primary Current Range AC rms (max) 700 A Conversion ratio 1:1680 DC Accuracy Nominal Burden Resistance 1 Ohm (max. 3 Ohm) Temperature influence (typ.) - Page 13 IEC 61010-1 standards, EN 50178 standards 1000 V CAT III Clearance / Creepage 12 mm Weight 500 g Inner diameter 22 mm Dimensions 77 x 57 x 46.7 mm DEWESoft® Shunt 1 Ω PWR-MCTS2 needed Yes (±15 V) DC-CT V23-1 13/30...
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Page 14: Dc-Ct-1000I-S22Da: Technical Drawing
DC-CT TECHNICAL REFERENCE MANUAL 5.1.2. DC-CT-1000I-S22DA: Technical drawing DC-CT-1000I-S22DA technical drawing DC-CT V23-1 14/30... -
Page 15: Dc-Ct-1000I-S22Da: Pinout
DC-CT TECHNICAL REFERENCE MANUAL 5.1.3. DC-CT-1000I-S22DA: Pinout 5.1.3.1. DC-CT-1000I-S22DA: Pinout: D9 connector Name Description RETURN Output - TEDS TEDS STATUS - Status - Ground Supply - (see 1) OUTPUT Output + Not connected STATUS + Status + Supply + (see 1) -
Page 16: Dc-Ct-1000I-S22Da: Characteristics
The following typical characteristics were obtained at nominal power supply of ±15 V (NGE100), burden resistor of 1 Ω, cable length between DC-CT and burden resistor 5 m, DMM Keithley DMM7510, reference current sensor IN2000S, ambient temperature TA of 23 ±5 ◦C, primary conductor of a square bar 15x15 mm in center position, and total measurement uncertainty of the system of 21 mA @ 1000 A. -
Page 17: Off-Center Error
Linearity Referred to Full Scale IP=1000 A Offset (Hysteresis) vs. IP 5.1.4.2. Off-Center Error The position of the primary conductor affects the accuracy vs primary current: Position Error vs Test Location relative to Location 0 Position Error Test Locations DC-CT V23-1 17/30... -
Page 18: A Peak-To-Peak Cycling Test
5.1.4.3. A Peak-to-Peak Cycling Test The following test shows a sequence test with current cycling, representing a primary current and absolute error: Cycling Test at TA = 23±5◦C 1.1.4 AC Response Small Signal AC Response at IP ≈ 0.8 ARMS DC-CT V23-1 18/30... -
Page 19: Temperature Drift
The second chart represents drift from -35 ◦C and magnetized cores at constant current of 100 A. It has been found out, that temperature stress in whatever direction reduces the offset resulted from the hysteresis. Temperature Drift at IP= 0 A : Temperature Drift at IP= 100 A DC-CT V23-1 19/30... -
Page 20: Noise
5.1.4.5.1. kHz Bandwidth Noise Noise spectrum vs. TA up to 10 kHz Noise spectrum vs. TA up to 100 kHz 5.1.4.5.2. MHz Bandwidth Noise and Ripple Noise spectrum vs. TA up to 1 MHz Averaged noise spectrum at TA= -35◦C DC-CT V23-1 20/30... - Page 21 DC-CT TECHNICAL REFERENCE MANUAL Averaged noise spectrum at TA= 20◦C Averaged noise spectrum at TA= 85◦C DC-CT V23-1 21/30...
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Page 22: Dsi Adapters
TECHNICAL REFERENCE MANUAL 5.2. DSI adapters 5.2.1. DSI-DC-CT-1000I-0.3m DSI-DC-CT-1000I-0.3m is the DSI adapter for the DC-CT-1000I sensors. It fits between the Dewesoft DAQ device and the PWR-MCTS2 device. It comes with a 1 Ω shunt resistor and TEDS chip. DSI-DC-CT-1000I-0.3m 5.2.1.1. -
Page 23: Dsi-Dc-Ct-1000I-0.3M: Pinout
DC-CT TECHNICAL REFERENCE MANUAL 5.2.1.2. DSI-DC-CT-1000I-0.3m: Pinout Name Description RETURN Return Not connected Ground Ground Not connected Output Not connected DSI-MCTS-x-03M connector: pinout (DSUB-9 female) Normal op. st. Normal op. st. Not connected Name Description Not connected Not connected Ground... -
Page 24: Dsi-Dc-Ct-1000I-0.3M: Characteristics
DC-CT TECHNICAL REFERENCE MANUAL 5.2.1.3. DSI-DC-CT-1000I-0.3m: Characteristics 5.2.1.3.1. Magnitude response 5.2.1.3.2. Phase response DC-CT V23-1 24/30... - Page 25 • Power Supply: Unipolar 30 V or Bipolar ±15 V with floating current output • Standby Power Consumption 0.5 W • Typical Power consumption 6.6 W at rated IP • Withstands rated DC/AC primary currents without being powered • Operational Range -40 to 85◦C DC-CT V23-1 25/30...
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Page 26: Warranty Information
6.2. Support Dewesoft has a team of people ready to assist you if you have any questions or any technical difficulties regarding the system. For any support please contact your local distributor first or Dewesoft directly. -
Page 27: Printing History
When used in text representing the company, product or technology name, the ® sign is not used. The Dewesoft triangle logo is a registered trademark but the ® sign is not used in the visual representation of the triangle logo. -
Page 28: Environmental Considerations
This symbol indicates that this system complies with the European Union’s requirements according to Directive 2002/96/EC on waste electrical and electronic equipment (WEEE). Please find further information about recycling on the Dewesoft web site www.dewesoft.com Restriction of Hazardous Substances This product has been classified as Monitoring and Control equipment and is outside the... - Page 29 REMOVE POWER and do not use the product until the safe operation can be verified by service-trained personnel. If necessary, return the product to Dewesoft sales and service office for service and repair to ensure that safety features are maintained.
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Page 30: Documentation Version History
Fire-alarm and safety-alarm systems, intended for the protection of buildings, are excluded from the scope of IEC 61326-3-1. 7.3. Documentation version history Version Date Notes V23-1 30.10.2023 Initital version of the manual including: specifications and characteristics, technical drawing, corresponding cable DC-CT V23-1 30/30...
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