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Rogowski Coil Current Probe

SS-663/664/665

Instruction Manual

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Summary of Contents for SS-663

Page 1: ...Rogowski Coil Current Probe SS 663 664 665 Instruction Manual...

Page 2: ...2018 IWATSU ELECTRIC CO LTD All rights reserved...

Page 3: ...il Current Probe 9 1 2 Features 10 1 3 Usage Example 11 Chapter 2 Names and Functions 12 2 1 Main Unit 12 2 2 Names and Functions of Main Unit 13 2 3 Rogowski Coil Sensor 14 Chapter 3 Measurement Prin...

Page 4: ...Memo...

Page 5: ...the following sections Definition of WARNING and CAUTION as used in this manual WARNING Incorrect operation or failure to observe a warning may result in death or serious injury CAUTION Incorrect ope...

Page 6: ...r coil generates heat due to induction heating Even if the absolute maximum di dt is within the range the coil itself is metal so induction heating causes the coil itself to generate heat which may ca...

Page 7: ...ot an electric shock fire or failure may occur Do not use any of the cables or AC adaptor if damaged Contact Iwatsu office or our sales distributors for repair Do not modify any cable or the AC adapto...

Page 8: ...ument remove the AC adaptor from the outlet when used After that contact Iwatsu office or our sales distributors for repair When thunder begins pull out the power plug of a device or the AC adaptor to...

Page 9: ...ctric shock fire or failure may occur Do not put this instrument in a place exposed to lamp soot or steam generated by counters humidifiers etc If not an electric shock fire or failure may occur Avoid...

Page 10: ...surrounding environment Do not throw used batteries in the fire Batteries thrown in the fire may explode causing a fire or burn For information on disposing of used batteries refer to Management of in...

Page 11: ...IWATSU or our sales distributors Components Rogowski Coil Current Probe 1 Accessories See the accessories table below Accessories table Option AC adaptor 1 The AC adaptor option comes with the hard c...

Page 12: ...t to Iwatsu office or our sales distributors When sending an instrument to be repaired clearly write the instrument name serial number in the label on the rear of this instrument description of the fa...

Page 13: ...etic flux generates an electromotive force in the coil The electromotive force is proportional to a differential value of the current The output electromotive force of the Rogowski Coil is the differe...

Page 14: ...nd insulation property around the coil This instrument has the following specifications for details refer to Section 5 1 Specifications Frequency bandwidth fL to 30 MHz 3 dB fL Low Frequency cutoff Pe...

Page 15: ...h a sensitivity mV A set for each main unit The converted voltage is output from the output terminal of the main unit Inputting the output voltage to an oscilloscope and other monitoring devices allow...

Page 16: ...Chapter 2 Names and Functions of Parts 12 Chapter 2 Names and Functions 2 1 Main Unit...

Page 17: ...4 2 Input part The sensor cable refer to Section 2 3 integral with the main unit is connected to this part Section 2 1 Output part BNC output connector Outputs the voltage current waveform of the mai...

Page 18: ...n Joint box The sensor cable is secured to one end so that the Rogowski Coil forms a closed loop There is a joint hole to secure the other end of the coil Joint hole A part of the joint box and has a...

Page 19: ...rent current waveform in conductors to be measured It consists of the Rogowski Coil Sensor part and the main unit integrator Sections 3 1 and 3 2 in this chapter describe measurement principles and fu...

Page 20: ...ld changes with time because alternating current flows in the conductor to be measured In the Rogowski Coil magnetic flux changes along the loop When it changes an electromotive force is generated and...

Page 21: ...The output voltage of the main unit current waveform is observed by an oscilloscope and other monitoring devices through the BNC cable As expressed by the following Equation 3 3 the voltage component...

Page 22: ...not place them in the wrong orientation c Close the lid of the battery case For the AC adaptor option a Connect the AC adaptor cable to the connector on the top of the main unit refer to in the appear...

Page 23: ...ply power to the target to be measured before the attachment 3 Place the target to be measured through the Rogowski Coil Sensor part a As illustrated in Figure 4 1 release free end of Rogowski Coil fr...

Page 24: ...following figure to the I side and off by moving the switch to the O side 5 Adjust the ZERO point of the output observed by monitoring devices a Have the included accessory Adjustment Screwdriver read...

Page 25: ...ent slot and turn it without applying excessive pressure The required rotation torque is less than 20 mN m If using a screwdriver other than the accessories or applying excessive pressure to ZERO ADJ...

Page 26: ...ctional and a complete ring compound because there is a connecting part in the Rogowski Coil For reference Figure 4 3 shows the position of the connection part of the Rogowski Coil The connection part...

Page 27: ...y generate heat due to induction heating Applicating this is IH s electromagnetic cooker Since the Rogowski coil has a coiled structure in which a copper wire is wound around a core material the coil...

Page 28: ...in an environment where high voltage is applied to the sensor part for a long time Depending on the frequency of the applied voltage and installation conditions of the sensor part Corona discharge may...

Page 29: ...ximum voltage range 6 V load 100 k Output becomes 2V and sensitivity becomes about the half for 50 load Connector BNC Linearity 0 05 of full scale Zero point adjustment range 300 mV or more Sensor par...

Page 30: ...ment during the use of batteries The continuous operation time of this instrument is about 18 hours when alkaline batteries are used The LOW BATTERY LED lamp lights up when batteries are consumed Abou...

Page 31: ...Chapter 5 Specifications 27 5 2 Appearance 1 Main Unit Unit mm...

Page 32: ...Chapter 5 Specifications 28 2 Rogowski Coil Sensor Unit mm...

Page 33: ...Us Overseas Sales Sect Sales Dept No 2 Address 7 41 Kugayama 1 Chome Suginami ku Tokyo 168 8501 Japan Phone 81 3 5370 5483 Facsimile 81 3 5370 5492 URL http www iti iwatsu co jp E mail info tme iwats...

Page 34: ...SS 663 664 665...

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