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Foreword

SCT6xxx

7

Version: 1.3

• The operating instructions.

• The fact that operating instructions can only list general regulations and that these regulations must be

followed.

• Check the device carefully for transport damage prior to commissioning. The device must not be put

into operation if it is mechanically damaged.

• The devices described are intended for installation by qualified electricians and may only be installed in

electrical plant rooms or in closed housings. Any other use or the disregard of these application notes
will result in the loss of the warranty/guarantee.

• The devices may only be installed in dry indoor rooms.

• Do not mount on highly flammable materials.

• Operation with a higher current than the rated current specified on the name plate can lead to

overheating of the current transformer and thus to burns.

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Содержание SCJ6625

Страница 1: ...Documentation EN SCT6xxx Split core current transformers 2022 11 10 Version 1 3...

Страница 2: ......

Страница 3: ...3 1 SCT64xx General 31 3 3 2 SCT6411 Split core current transformer for primary currents 0 300 A AC to 0 500 A AC accuracy class 1 size 4 33 3 3 3 SCT6421 Split core current transformer for primary cu...

Страница 4: ...Table of contents SCT6xxx 4 Version 1 3 6 2 Support and Service 51...

Страница 5: ...rCAT P Safety over EtherCAT TwinSAFE XFC XTS and XPlanar are registered trademarks of and licensed by Beckhoff Automation GmbH Other designations used in this publication may be trademarks whose use b...

Страница 6: ...he components are supplied in particular hardware and software configurations appropriate for the application Modifications to hardware or software configurations other than those described in the doc...

Страница 7: ...ged The devices described are intended for installation by qualified electricians and may only be installed in electrical plant rooms or in closed housings Any other use or the disregard of these appl...

Страница 8: ...est benches with particularly high requirements for accuracy The choice of the right product category 14 depends on the type of usage Whilst the data acquisition can be implemented cost efficiently an...

Страница 9: ...windings on the primary side and a larger number of windings on the secondary side The current to be converted flows through the primary side The windings are usually wound on an alternating magnetic...

Страница 10: ...s According to DIN VDE 0141 01 2000 paragraph 5 3 4 current and voltage transformers for nomi nal voltages from Um 3 6 kV must be grounded on the secondary side For low voltages Um 1 2 kV grounding is...

Страница 11: ...of the continuous current in the primary winding at which the overtemperature does not exceed the value specified in the standard with the secondary winding loaded with the rated load Rated short time...

Страница 12: ...nsformers is fundamentally different Fig 4 Principle fluxgate current measurement technology The measuring principle of the SCT5xxx is based on a differential current measurement of two oppositely exc...

Страница 13: ...ents at frequencies up to 100 kHz This makes this differential current transformer compatible with a wide range of industrial applications loads and power sources With its user selectable settings thi...

Страница 14: ...ct overview SCT6xxx 14 Version 1 3 2 3 Product categories SCTxxxx current transformer Breakdown of the type designation of the SCT current transformer Fig 6 Designation key of the SCT current transfor...

Страница 15: ...current transformers would quickly hit their limits on the basis of this physical principle The SCT0xxx coil current transformers with electrical isolation are specially designed for these low primary...

Страница 16: ...stallation spaces e g directly in the sub distribution unit Two current transformers are attached to the DIN rail while the third current transformer is plugged into the fastened current transformers...

Страница 17: ...The SCT2xxx series offers a large selection of ring type current transformers for primary currents from 60 to 2500 A in six sizes and two accuracy classes The innovative screwless connection technolo...

Страница 18: ...onductor 43 7 mm size 3 SCT2321 Accuracy class 0 5 Primary current 0 800 A AC 1000 A AC Secondary current 1 A AC Max diameter round conductor 43 7 mm size 3 SCT2411 Accuracy class 1 Primary current 0...

Страница 19: ...rmers in accuracy class 0 5 3 phase ring type current transformers SCT3111 Accuracy class 1 Primary current 3 x 0 50 A AC to 3 x 0 150 A AC Secondary current 1 A AC Max diameter round conductor 13 5 m...

Страница 20: ...ere Monitoring residual currents with the SCT5xxx in real time in a power system opens up the possibility of evaluating the condition of the electrical insulation based on the actual measured value so...

Страница 21: ...conductor 18 5 mm size 3 SCT6321 Accuracy class 0 5 Primary current 0 200 A AC 0 250 A AC Secondary current 1 A AC Max diameter round conductor 18 5 mm size 3 SCT6411 Accuracy class 1 Primary current...

Страница 22: ...ize 1 SCT7125 Accuracy class 0 5 Primary current 0 400 A AC Secondary current 5 A AC Max diameter round conductor 20 mm size 1 SCT7215 Accuracy class 1 Primary current 0 500 A AC 0 600 A AC Secondary...

Страница 23: ...ables show the fault limit values taking into account the rated current values Class accuracy Current error in at of rated current 5 20 50 100 120 0 5 1 5 0 75 0 5 0 5 1 3 0 1 5 1 0 1 0 3 3 3 Class ac...

Страница 24: ...nt temperature range during operation 5 40 C Permissible ambient temperature range during storage 25 70 C Permissible relative humidi 5 85 Operating height Up to 2000 m Protection class IP20 Insulatio...

Страница 25: ...Technical data SCT6xxx 25 Version 1 3 SCT61xx dimensions size 1 Fig 15 Isometric view Fig 16 Right side view front view left side view all dimensions in mm...

Страница 26: ...A AC accuracy class 3 size 1 Technical data SCT6101 xxxx Accuracy class 3 Primary current 0 60 A AC to 0 150 A AC Secondary current 1 A AC Versions SCT6101 0060 ratio 60 1 rated power 0 4 VA SCT6101...

Страница 27: ...rature range during operation 5 50 C Permissible ambient temperature range during storage 25 70 C Permissible relative humidi 5 85 Operating height Up to 2000 m Protection class IP20 Insulation charac...

Страница 28: ...Technical data SCT6xxx 28 Version 1 3 SCT63xx dimensions size 3 Fig 17 Isometric view top view Fig 18 Right side view front view left side view all dimensions in mm...

Страница 29: ...ormer for primary currents 0 200 A AC 0 250 A AC accuracy class 1 size 3 Technical data SCT6311 xxxx Accuracy class 1 Primary current 0 200 A AC 0 250 A AC Secondary current 1 A AC Versions SCT6311 02...

Страница 30: ...mer for primary currents 0 200 A AC 0 250 A AC accuracy class 0 5 size 3 Technical data SCT6321 xxxx Accuracy class 0 5 Primary current 0 200 A AC 0 250 A AC Secondary current 1 A AC Versions SCT6321...

Страница 31: ...rature range during operation 5 50 C Permissible ambient temperature range during storage 25 70 C Permissible relative humidi 5 85 Operating height Up to 2000 m Protection class IP20 Insulation charac...

Страница 32: ...Technical data SCT6xxx 32 Version 1 3 SCT64xx dimensions size 4 Fig 19 Isometric view top view Fig 20 Right side view front view left side view all dimensions in mm...

Страница 33: ...ts 0 300 A AC to 0 500 A AC accuracy class 1 size 4 Technical data SCT6411 xxxx Accuracy class 1 Primary current 0 300 A AC to 0 500 A AC Secondary current 1 A AC Versions SCT6411 0300 ratio 300 1 rat...

Страница 34: ...rmer for primary currents 0 400 A AC 0 500 A AC accuracy class 0 5 size 4 Technical data SCT6421 xxxx Accuracy class 0 5 Primary current 0 400 A AC 0 500 A AC Secondary current 1 A AC Versions SCT6421...

Страница 35: ...ature range during operation 5 50 C Permissible ambient temperature range during storage 25 70 C Permissible relative humidi 5 85 Operating height Up to 2000 m Protection class IP20 Insulation charact...

Страница 36: ...Technical data SCT6xxx 36 Version 1 3 SCT66xx dimensions size 6 Fig 21 Isometric view top view Fig 22 Right side view front view left side view all dimensions in mm...

Страница 37: ...sformer for primary currents 0 600 A AC 0 750 A AC accuracy class 1 size 6 Technical data SCT6615 xxxx Accuracy class 1 Primary current 0 600 A AC 0 750 A AC Secondary current 5 A AC Versions SCT6615...

Страница 38: ...mer for primary currents 0 600 A AC 0 750 A AC accuracy class 0 5 size 6 Technical data SCT6625 xxxx Accuracy class 0 5 Primary current 0 600 A AC 0 750 A AC Secondary current 5 A AC Versions SCT6625...

Страница 39: ...ature range during operation 5 50 C Permissible ambient temperature range during storage 25 70 C Permissible relative humidi 5 85 Operating height Up to 2000 m Protection class IP20 Insulation charact...

Страница 40: ...Technical data SCT6xxx 40 Version 1 3 SCT67xx dimensions size 7 Fig 23 Isometric view top view Fig 24 Right side view front view left side view all dimensions in mm...

Страница 41: ...ormer for primary currents 0 800 A AC 0 1000 A AC accuracy class 1 size 7 Technical data SCT6715 xxxx Accuracy class 1 Primary current 0 800 A AC 0 1000 A AC Secondary current 5 A AC Versions SCT6715...

Страница 42: ...r for primary currents 0 800 A AC 0 1000 A AC accuracy class 0 5 size 7 Technical data SCT6725 xxxx Accuracy class 0 5 Primary current 0 800 A AC 0 1000 A AC Secondary current 5 A AC Versions SCT6725...

Страница 43: ...ion of the current transformer without secondary wiring must be avoided at all costs Make sure that the working environment is safe during assembly maintenance and installation work Interrupt the powe...

Страница 44: ...Commissioning SCT6xxx 44 Version 1 3 Measuring circuit Fig 25 Measuring circuit SCT6xxx transformer brown conductor S1 blue conductor S2 Assembly notes Fig 26 Inserting the fixing clasps...

Страница 45: ...on 1 3 Fig 27 Sealing option with the types SCT63xx SCT64xx SCT66xx Fig 28 With the SCT67xx types the lower half of the core can be removed for easier mounting Fig 29 SCT63xx SCT64xx snap on mounting...

Страница 46: ...e measuring device Check whether the current transformer is connected correctly Open circuit Current transformers must be short circuited as long as no tapping occurs Note the danger warnings 43 in th...

Страница 47: ...corresponding voltage tap off if the active and or reactive power does not correspond to the expected values if necessary one phase has been reversed Check whether the current transformer is connecte...

Страница 48: ...Beckhoff SCT series and the connections IL1 IL2 IL3 and IN star point of the current transformers Fig 30 EL3443 power measurement at a machine Fuse protection of the terminal The voltage measurement...

Страница 49: ...ltage is measured via connections L1 L2 L3 and N The current is measured via 4 current transformers e g from the Beckhoff SCT series and the connections IL1 IL2 IL3 and IN star point of the current tr...

Страница 50: ...ix 6 1 Documentation issue status Version Comment 1 3 Chapter Introduction updated Chapter Technical data updated 1 2 Addenda chapter Notes on class accuracy SCT transformers 1 1 Addenda corrections 1...

Страница 51: ...here Beckhoff Support Support offers you comprehensive technical assistance helping you not only with the application of individual Beckhoff products but also with other wide ranging services support...

Страница 52: ......

Страница 53: ...Beckhoff Automation GmbH Co KG H lshorstweg 20 33415 Verl Germany Phone 49 5246 9630 info beckhoff com www beckhoff com More Information www beckhoff com SCT6xxx...

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