INSTRUMENT CURRENT TRANSFORMERS

Instrument transformer is a general term for voltage transformers and current transformers that are used with electrical instruments. The main purpose of instrument transformers is to extend the measurement range for electrical quantities (voltage, current, power, power factor) on large-current and high-voltage circuits. They serve to convert currents and voltages to levels that are suitable for measurement, and to insulate the instrument, etc. from high-voltage circuitry. YOKOGAWA makes a variety of standard instrument transformers. These include the top class (Class 0.1) current transformer 2243, the Class 0.2 6600V circuit instrument voltage transformer 2262, the 6600V current transformer 2242, instrument voltage transformer 2261, and current transformer 2241.

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Specifications - Model 2241 00

Conversion Type Current
Current 0.5 ~ 1500 A
Primary 10/15/30/50/100/ 250/300/500/750/1500A
Secondary 5A
Rated Load 15 VA
Relative Error ± 0.2%
Phase Angle ± 10 minutes
Class JIS C 1731 : 1997 Class 0.2
Maximum Circuit Voltage 3450 V
Withstand Voltage 10000 V
Rated Frequency 50 ~ 60 Hz
Approx. External Dimension 318 x 246 x 128 mm
Approx. External Weight 9 kg

Features

  • Precision conversion of electrical quantities on AC large-current or high-voltage circuits
  • Secondary circuit is isolated from primary circuit.
  • Capable of wide-range measurement using numerous ranges

 

Specifications - Model 2242 00

Conversion Type Current
Current 0.5 ~ 1500 A
Primary 10/15/30/50/100/ 250/300/500/750/1500A
Secondary 5A
Rated Load 15 VA
Relative Error ± 0.2%
Phase Angle ± 10 minutes
Class JIS C 1731 : 1997 Class 0.2
Maximum Circuit Voltage 6900 V
Withstand Voltage 16000 V
Rated Frequency 50 ~ 60 Hz
Approx. External Dimension 349 x 267 x 152 mm
Approx. External Weight 11 kg

Features

  • Precision conversion of electrical quantities on AC large-current or high-voltage circuits
  • Secondary circuit is isolated from primary circuit.
  • Capable of wide-range measurement using numerous ranges

 

Specifications - Model 2243 00

Conversion Type Current
Current 0.5 ~ 1500 A
Primary 0.5/0.75/1/1.5/2/ 3/5/7.5/10/15/20/30/50/75/100A
Secondary 5A
Rated Load 15 VA
Relative Error ± 0.1%
Phase Angle ± 5 minutes
Class JIS C 1731 : 1997 Class 0.1
Maximum Circuit Voltage 250 V
Withstand Voltage 2000 V
Rated Frequency 50 ~ 60 Hz
Approx. External Dimension 343 x 256 x 136 mm
Approx. External Weight 12.5 kg

Features

  • Precision conversion of electrical quantities on AC large-current or high-voltage circuits
  • Secondary circuit is isolated from primary circuit.
  • Capable of wide-range measurement using numerous ranges

 

Specifications - Model 2261 01

Conversion Type Voltage
Voltage 15 ~ 6600 V
Primary 220/440/2200/3300V
Secondary 110V
Rated Load 15 VA
Relative Error ± 0.2%
Phase Angle ± 10 minutes
Class JIS C 1731 : 1997 Class 0.2
Withstand Voltage 10000 V
Rated Frequency 50 ~ 60 Hz
Approx. External Dimension 255 x 240 x 200 mm
Approx. External Weight 18 kg

Features

  • Precision conversion of electrical quantities on AC large-current or high-voltage circuits
  • Secondary circuit is isolated from primary circuit.
  • Capable of wide-range measurement using numerous ranges

 

Specifications - Model 2262 00

Conversion Type Voltage
Voltage 15 ~ 6600 V
Primary 3300/6600V
Secondary 110V
Rated Load 15 VA
Relative Error ± 0.2%
Phase Angle ± 10 minutes
Class JIS C 1731 : 1997 Class 0.2
Withstand Voltage 16000 V
Rated Frequency 50 ~ 60 Hz
Approx. External Dimension 294 x 240 x 200 mm
Approx. External Weight 18 kg

Features

  • Precision conversion of electrical quantities on AC large-current or high-voltage circuits
  • Secondary circuit is isolated from primary circuit.
  • Capable of wide-range measurement using numerous ranges
Model Description
2241 00 Current, 10/15/30/50/100/ 250/300/500/750/1500A, 5A, ± 0.2%, ± 10 minutes, 10000 V, 318 x 246 x 128 mm
2242 00 Current, 10/15/30/50/100/ 250/300/500/750/1500A, 5A, ± 0.2%, ± 10 minutes, 16000 V, 349 x 267 x 152 mm
2262 00 Voltage, 3300/6600V, 110V, ± 0.2%, ± 10 minutes, 16000 V, 294 x 240 x 200 mm
2243 00 Current, 0.5/0.75/1/1.5/2/ 3/5/7.5/10/15/20/30/50/75/100A, 5A, ± 0.1%, ± 5 minutes, 2000 V, 343 x 256 x 136 mm
2261 01 Voltage, 220/440/2200/3300V, 110V, ± 0.2%, ± 10 minutes, 10000 V, 255 x 240 x 200 mm
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