RS Type Current Sense Transformer

  • Rated Input:30-6000A
  • Output:1A/5A
  • Accuracy:0.5 ,1.0
  • Secondary current:5A,1A
  • Rated Frequency:50/60Hz
  • Withstand voltage:AC3kV(1min)
  • Rated voltage:AC0.72KV

Current sense transformer the RS model,launched by HEYI Electric, is a ring structure current transformer designed for accurate measurement of alternating current (AC) in a wide range of applications. With an inner diameter ranging from 30mm to 140mm, it offers flexibility to accommodate various conductor sizes. The RS current transformer provides a measurement range spanning from 5A to 6000A, making it suitable for both low and high-current systems.

Features:

  • Ring Structure: The RS current sense transformer features a ring design, allowing it to encircle the current-carrying conductor without the need for physical contact. This non-intrusive measurement method ensures safety and convenience during installation and operation.
  •  Inner Diameter: The transformer’s  inner diameter provides versatility, enabling it to be used with a wide range of conductor sizes, from a minimum of 30mm to a maximum of 140mm. This adaptability makes it suitable for various installation requirements.
  • Wide Measurement Range: The RS current sense transformer covers a measurement range of 5A to 6000A, ensuring accurate current measurement in both low and high-current systems. This broad range makes it applicable to diverse industrial and commercial applications.
  • High Accuracy: HEYI Electric’s RS current sense transformer is engineered for high accuracy, allowing precise current measurement even under varying load conditions. This accuracy is crucial for reliable performance in critical applications.
  • Robust Construction: The RS model is built with durable materials and robust construction to withstand harsh environmental conditions and ensure long-term reliability in demanding operational settings.

Applications:

  • Power Monitoring: The RS current sense transformer is ideal for power monitoring applications, providing accurate current measurement for load analysis, energy management, and power quality assessment in industrial and commercial settings.
  • Electrical Equipment Protection: The transformer’s precise current measurement capability is valuable for electrical equipment protection schemes, such as overcurrent or short-circuit detection, enabling timely response and prevention of equipment damage.
  • Energy Management Systems: With its wide measurement range and high accuracy, the RS current sense transformer is suitable for energy management systems, enabling accurate measurement and monitoring of power consumption for efficient energy management and cost optimization.
  • Industrial Automation: The RS current sense transformer finds applications in industrial automation systems, where precise current measurement is required for process control, motor protection, and fault detection.

In summary, the HEYI Electric RS model current transformer is a ring structure transformer designed for accurate measurement of AC currents in a wide range of applications. Its inner diameter, wide measurement range, high accuracy, and robust construction make it suitable for power monitoring, electrical equipment protection, energy management systems, and industrial automation. The RS toroidal current transformer offers versatility, accuracy, and reliability to meet the diverse needs of various industries.

Rated Frequency 50/60Hz
Withstand voltage AC3kV(1min)
Rated thermal current 60ln
Dynamic stability current 2.5lth
Rated voltage AC0.72KV
Burden 1.2ln
Operating temperature range -10°C-50°C
Prevent combustion level V0
Accuracy limit class FS5
Secondary current 5A,1A
Type Rated Input(A) Output(A) Accuracy
RS-30 30-150A 1A/5A 0.5 ,1.0
RS-40 100-300A 1A/5A 0.5 ,1.0
RS-50 300-800A 1A/5A 0.5 ,1.0
RS-65 500-1600A 1A/5A 0.5 ,1.0
RS-87 800-2000A 1A/5A 0.5 ,1.0
RS-110 1500-3200A 1A/5A 0.5 ,1.0
RS-140 3000-6000A 1A/5A 0.5 ,1.0
Type Ratio(A) Burden(VA)
class:0.5 class 1.0
RS-30 30/5 1(2T) 1
40/5 1(2T) 1
50/5 1.5(2T) 1.5
75/5 1 1.5
80/5 1 1.5
100/5 1.5 2.5
125/5 1.5 2.5
150/5 1.5 2.5
Type Ratio(A) Burden(VA)
class:0.5 class 1.0
RS-40 100/5 3.75 7.5
125/5 5 7.5
150/5 5 7.5
160/5 5 7.5
200/5 5 10
250/5 5 10
300/5 7.5 12.5
Type Ratio(A) Burden(VA)
class:0.5 class 1.0
RS-50 300/5 10 15
400/5 15 15
500/5 15 20
600/5 15 20
800/5 20 25
Type Ratio(A) Burden(VA)
class:0.5 class 1.0
RS-65 500/5 15 15
600/5 15 20
800/5 15 20
1000/5 15 20
1200/5 15 20
1500/5 15 20
1600/5 15 20
Type Ratio(A) Burden(VA)
class:0.5 class 1.0
RS-87 800/5 20 20
1000/5 20 25
1200/5 20 25
1500/5 20 25
1600/5 20 25
2000/5 20 30
Type Ratio(A) Burden(VA)
class:0.5 class 1.0
RS-110 1500/5 20 20
1600/5 20 25
2000/5 20 25
2500/5 30 30
3000/5 30 30
3200/5 30 30
Type Ratio(A) Burden(VA)
class:0.5 class 1.0
RS-140 3000/5 30 30
3500/5 30 30
4000/5 30 40
5000/5 30 50
6000/5 30 50

Diagram

RS-30

RS-40

RS-50

RS-65

RS-87

RS-110

RS-140

FAQ

1. How do I select the right RS current transformer for my application?

Select an RS current transformer based on the primary rated current, conductor dimensions, available installation space, secondary output, accuracy class, and rated burden. The window must accommodate your conductor. Share your operating current, cable dimensions, and meter specifications with HEYI for model selection support.

2. Are RS current transformers available with 1A or 5A secondary outputs?

Yes. The RS series offers 1A and 5A secondary outputs for compatible meters and monitoring equipment. Select the output that matches your instrument’s input rating. For longer secondary cable runs, also consider cable resistance and total connected burden before confirming the configuration.

3. What accuracy classes and rated burdens are available for RS current transformers?

RS current transformers are available in Class 0.5 and Class 1.0. The rated burden in VA depends on the model, current ratio, and accuracy class. To maintain the specified accuracy, select a configuration suitable for the combined burden of the connected instruments and secondary wiring.

4. What dimensions should I check before installing an RS current transformer?

Check the window diameter, overall diameter, body thickness, mounting arrangement, and terminal clearance. Confirm that the conductor can pass through the window and that sufficient space is available inside the panel. Request the dimensional drawing for your selected RS model before finalizing the installation layout.

5. What information should I provide when requesting an RS current transformer quotation?

Please provide the required current ratio, secondary output of 1A or 5A, accuracy class, rated burden in VA, window size, and quantity. Include the operating frequency, installation details, and any required compliance documents. If you are unsure which model to choose, send your meter specifications and conductor dimensions for review.

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