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Dent CT-SCM-0200-B Medium Split Core Current Transformer with Banana Plugs, 200A

Model: CT-SCM-0200-B

Dent CT-SCM-0200-B Medium Split Core Current Transformer with Banana Plugs, 200A-


Downloads: datasheet

Dent CT-SCM-0200-B Medium Split Core Current Transformer with Banana Plugs, 200A

Model: CT-SCM-0200-B

Provides a linear output voltage that is proportional to the input current that is safe and easy to install over existing electrical power lines without disconnection or interruption. Features a window size of 1.25” and offers a 200A amp rating.

Provides a linear output voltage that is proportional to the input current that is safe and easy to install over existing electrical power lines without disconnection or interruption. Features a window size of 1.25” and offers a 200A amp rating.

This product has been discontinued. Click here for the replacement model(s).


Dent CT-SCM-0200-B Offers

Features

  • 8' twisted pair leads, terminated in ferrule for easy connection to all Dent meters
  • Medium window size of 1.25" (32mm)
  • Output is 333mV at rated current
  • Internal precision burden resistor across secondary
  • Typical accuracy is ±1% (measured from 10% to 130%)
  • Core blades are shrouded for protection during installation
  • Core is interleaved at joints for accuracy
  • cETLus Listed

Applications

  • Building automation
  • Tenant submetering
  • Performance verification
  • Energy management
  • New technology assessment

Dent CT-SCM-0200-B Specifications

Key Specifications
Window Size 1.25" (3.20 cm)
Current Range 4 to 260 A AC
Output 333 mV at rated current
Ratio Error <1% at rated current (typical)
Phase Error <2° at rated current (typical)
Electrical
Output 333 mV at rated current
Wire Polarity White = Hi, positive (+)
Black = Low, negative (-)
Frequency Range 50 to 400 Hz
Mechanical
Case Material Epoxy encapsulated housing
Leads 8' (2.7 m), twisted pair, 20 AWG
Operating Temperature -4 to 131°F (-20 to 55°C)
Safety
Working Voltage 600 VAC, Category III
Dielectric Strength 5000 VAC around case
600V rated leads
Safety Standards Conforms to: UL STD 61010-1 EN 60044-1
Certified to: CAN/CSA STD C22.2 No. 61010-1
Click here for complete specifications on the Dent CT-SCM-0200-B

What's included with the Dent CT-SCM-0200-B

  • Dent CT-SCM-0200-B Medium Split Core Current Transformer with Banana Plugs, 200A
  • Extending the Leads on Your DENT Current Transformer

    One of the most frequently asked questions in our tech support department is this: "Can I get CTs with longer leads or extend the leads myself? What's the maximum length for CT leads?".

    Standard lead length for a DENT current transformer is 3 meters (with a 7 meter option available for some models). Occasionally, because of electrical room layout or other factors, there is a requirement for longer leads on a current transformer. Therefore, extending the CT leads is necessary. The following is a brief overview of options for extending CT leads based on CT type. Note that the length recommendations listed below apply to PowerScout Series and ELITEpro XC instruments ONLY. To extend RoCoil leads for use with the TCA-5, please contact our experts to get advice specific to your application.

    Split-Core/Hinged Split-Core Current Transformers (Including Revenue Grade Hinged Split Cores)

    DENT Split-Core/Hinged Split-Core Current Transformers - ITM Instruments
    MAXIMUM LENGTH

    Split-Core Current Transformers leads can be extended up to 500 feet using extensions of the same wire type/AWG.

    WIRE TYPE

    600 V Rated VW-1, 105°C, 20 AWG, black and white twisted pair, cURus

    RECOMMENDED SPLICING METHOD/MATERIALS

    Sure-Connect sealed butt splices which require a crimping tool and hot air gun. Always follow manufacturer's instructions.


    RoCoil Current Transformers

    DENT RoCoil Current Transformers - ITM Instruments
    MAXIMUM LENGTH

    RoCoil CT leads can be extended up to 100 feet using extensions of the same wire type/AWG.

    WIRE TYPE

    "Bare" RoCoil: Shielded cable with thermoplastic insulation, 1000 V AC VW-1, 2 x 26 AWG, 80°C, cURus

    RECOMMENDED SPLICING METHOD/MATERIALS ("BARE ROCOIL ONLY)

    Sure-Connect sealed butt splices which require a crimping tool and hot air gun. Always follow manufacturer's instructions.


    Solid Core (Toroid) Current Transformers

    DENT Solid Core (Toroid) Current Transformers - ITM Instruments
    MAXIMUM LENGTH

    Solid Core (Toroid) CT leads can be extended up to 500 feet using extensions of the same wire type/AWG.

    WIRE TYPE

    UL1015 24 AWG 7 Strand Black & White Twisted Pair (1 twist per inch), 600 V rated

    RECOMMENDED SPLICING METHOD/MATERIALS

    Sure-Connect sealed butt splices which require a crimping tool and hot air gun. Always follow manufacturer's instructions.

    Optimizing Performance from Rogowski Coil Current Transformers

    DENT Rogoski Coil - ITM Instruments
    WHAT IS A ROGOWSKI COIL?

    Rogowski coil, named after Walter Rogowski, is an electrical device for measuring alternating current (AC) or high-speed current pulses. It consists of a helical coil of wire with the lead from one end returning through the center of the coil to the other end so that both terminals are at the same end of the coil. The whole assembly is then wrapped around the straight conductor whose current is to be measured.

    Since the voltage that is induced in the coil is proportional to the rate of change of current in the straight conductor the output of the Rogowski coil is usually connected to an electrical (or electronic) integrator circuit in order to provide an output signal that is proportional to the current.

    The relationship between voltage and rate of change of current is explained in the following equation where "V" is voltage and "M" is a constant:

    DENT Rogoski Coil - ITM Instruments
    WHY CHOOSE A ROGOWSKI COIL CURRENT TRANSFORMER?
    Flexible Rogowski Coils, such as the DENT RoCoil, are designed for easy placement around cable bundles, large buss bars, or within tight breaker panels. Their design has several advantages over traditional split core current transformers including:

    1. Open-ended, flexible design allows it to be wrapped around a live conductor without disturbing it.
    2. Rogowski coils feature an air core rather than an iron core, which results in low inductance and faster response time to changing currents.
    3. Highly linear, even when subjected to large currents such as those used in electric power transmission, welding, or pulsed power applications.
    4. Largely immune to electromagnetic interference.
    HOW TO MAXIMIZE PERFORMANCE FROM A ROGOWSKI COIL CURRENT TRANSFORMER

    Rogowski coil accuracy is usually calibrated with the conductor centered in the CT window. In practice, however, the CT typically hangs on the conductor which can introduce measurement errors. Note that the error is greatest when the CT connector hangs on the conductor. The following diagram outlines the error introduced simply by moving the conductor to different positions within the opening of the Rogowski coil.

    DENT Rogoski Coil - ITM Instruments

    Best practice for Rogowski coil installation is to center the conductor as best as conditions allow. In addition, it's a good idea to keep any other conductors (those you do not wish to measure) at a minimum distance of 2x the diameter of the Rogowski coil CT.

    Also, keep in mind that although a Rogowski coil is ideal for large amperage loads, accuracy of the coil may be reduced on smaller loads (<20 A).

    Customer Reviews for the Dent CT-SCM-0200-B

    Ask a question about Dent CT-SCM-0200-B Medium Split Core Current Transformer with Banana Plugs, 200A

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    Dent CT-SCM-0200-B Offers

    Features

    • 8' twisted pair leads, terminated in ferrule for easy connection to all Dent meters
    • Medium window size of 1.25" (32mm)
    • Output is 333mV at rated current
    • Internal precision burden resistor across secondary
    • Typical accuracy is ±1% (measured from 10% to 130%)
    • Core blades are shrouded for protection during installation
    • Core is interleaved at joints for accuracy
    • cETLus Listed

    Applications

    • Building automation
    • Tenant submetering
    • Performance verification
    • Energy management
    • New technology assessment

    Dent CT-SCM-0200-B Specifications

    Key Specifications
    Window Size 1.25" (3.20 cm)
    Current Range 4 to 260 A AC
    Output 333 mV at rated current
    Ratio Error <1% at rated current (typical)
    Phase Error <2° at rated current (typical)
    Electrical
    Output 333 mV at rated current
    Wire Polarity White = Hi, positive (+)
    Black = Low, negative (-)
    Frequency Range 50 to 400 Hz
    Mechanical
    Case Material Epoxy encapsulated housing
    Leads 8' (2.7 m), twisted pair, 20 AWG
    Operating Temperature -4 to 131°F (-20 to 55°C)
    Safety
    Working Voltage 600 VAC, Category III
    Dielectric Strength 5000 VAC around case
    600V rated leads
    Safety Standards Conforms to: UL STD 61010-1 EN 60044-1
    Certified to: CAN/CSA STD C22.2 No. 61010-1
    Click here for complete specifications on the Dent CT-SCM-0200-B

    What's included with the Dent CT-SCM-0200-B

  • Dent CT-SCM-0200-B Medium Split Core Current Transformer with Banana Plugs, 200A
  • Extending the Leads on Your DENT Current Transformer

    One of the most frequently asked questions in our tech support department is this: "Can I get CTs with longer leads or extend the leads myself? What's the maximum length for CT leads?".

    Standard lead length for a DENT current transformer is 3 meters (with a 7 meter option available for some models). Occasionally, because of electrical room layout or other factors, there is a requirement for longer leads on a current transformer. Therefore, extending the CT leads is necessary. The following is a brief overview of options for extending CT leads based on CT type. Note that the length recommendations listed below apply to PowerScout Series and ELITEpro XC instruments ONLY. To extend RoCoil leads for use with the TCA-5, please contact our experts to get advice specific to your application.

    Split-Core/Hinged Split-Core Current Transformers (Including Revenue Grade Hinged Split Cores)

    DENT Split-Core/Hinged Split-Core Current Transformers - ITM Instruments
    MAXIMUM LENGTH

    Split-Core Current Transformers leads can be extended up to 500 feet using extensions of the same wire type/AWG.

    WIRE TYPE

    600 V Rated VW-1, 105°C, 20 AWG, black and white twisted pair, cURus

    RECOMMENDED SPLICING METHOD/MATERIALS

    Sure-Connect sealed butt splices which require a crimping tool and hot air gun. Always follow manufacturer's instructions.


    RoCoil Current Transformers

    DENT RoCoil Current Transformers - ITM Instruments
    MAXIMUM LENGTH

    RoCoil CT leads can be extended up to 100 feet using extensions of the same wire type/AWG.

    WIRE TYPE

    "Bare" RoCoil: Shielded cable with thermoplastic insulation, 1000 V AC VW-1, 2 x 26 AWG, 80°C, cURus

    RECOMMENDED SPLICING METHOD/MATERIALS ("BARE ROCOIL ONLY)

    Sure-Connect sealed butt splices which require a crimping tool and hot air gun. Always follow manufacturer's instructions.


    Solid Core (Toroid) Current Transformers

    DENT Solid Core (Toroid) Current Transformers - ITM Instruments
    MAXIMUM LENGTH

    Solid Core (Toroid) CT leads can be extended up to 500 feet using extensions of the same wire type/AWG.

    WIRE TYPE

    UL1015 24 AWG 7 Strand Black & White Twisted Pair (1 twist per inch), 600 V rated

    RECOMMENDED SPLICING METHOD/MATERIALS

    Sure-Connect sealed butt splices which require a crimping tool and hot air gun. Always follow manufacturer's instructions.

    Optimizing Performance from Rogowski Coil Current Transformers

    DENT Rogoski Coil - ITM Instruments
    WHAT IS A ROGOWSKI COIL?

    Rogowski coil, named after Walter Rogowski, is an electrical device for measuring alternating current (AC) or high-speed current pulses. It consists of a helical coil of wire with the lead from one end returning through the center of the coil to the other end so that both terminals are at the same end of the coil. The whole assembly is then wrapped around the straight conductor whose current is to be measured.

    Since the voltage that is induced in the coil is proportional to the rate of change of current in the straight conductor the output of the Rogowski coil is usually connected to an electrical (or electronic) integrator circuit in order to provide an output signal that is proportional to the current.

    The relationship between voltage and rate of change of current is explained in the following equation where "V" is voltage and "M" is a constant:

    DENT Rogoski Coil - ITM Instruments
    WHY CHOOSE A ROGOWSKI COIL CURRENT TRANSFORMER?
    Flexible Rogowski Coils, such as the DENT RoCoil, are designed for easy placement around cable bundles, large buss bars, or within tight breaker panels. Their design has several advantages over traditional split core current transformers including:

    1. Open-ended, flexible design allows it to be wrapped around a live conductor without disturbing it.
    2. Rogowski coils feature an air core rather than an iron core, which results in low inductance and faster response time to changing currents.
    3. Highly linear, even when subjected to large currents such as those used in electric power transmission, welding, or pulsed power applications.
    4. Largely immune to electromagnetic interference.
    HOW TO MAXIMIZE PERFORMANCE FROM A ROGOWSKI COIL CURRENT TRANSFORMER

    Rogowski coil accuracy is usually calibrated with the conductor centered in the CT window. In practice, however, the CT typically hangs on the conductor which can introduce measurement errors. Note that the error is greatest when the CT connector hangs on the conductor. The following diagram outlines the error introduced simply by moving the conductor to different positions within the opening of the Rogowski coil.

    DENT Rogoski Coil - ITM Instruments

    Best practice for Rogowski coil installation is to center the conductor as best as conditions allow. In addition, it's a good idea to keep any other conductors (those you do not wish to measure) at a minimum distance of 2x the diameter of the Rogowski coil CT.

    Also, keep in mind that although a Rogowski coil is ideal for large amperage loads, accuracy of the coil may be reduced on smaller loads (<20 A).

    Ask a question about Dent CT-SCM-0200-B Medium Split Core Current Transformer with Banana Plugs, 200A

    Customer Reviews for the Dent CT-SCM-0200-B

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