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Home > High Linearity Precision Current Transformer > TR Measurement of CT 1A/5A Using High-Precision Three-Phase Split Core Open Type AC Current Transformer
TR Measurement of CT 1A/5A Using High-Precision Three-Phase Split Core Open Type AC Current Transformer
TR Measurement of CT 1A/5A Using High-Precision Three-Phase Split Core Open Type AC Current Transformer
TR Measurement of CT 1A/5A Using High-Precision Three-Phase Split Core Open Type AC Current Transformer
TR Measurement of CT 1A/5A Using High-Precision Three-Phase Split Core Open Type AC Current Transformer
TR Measurement of CT 1A/5A Using High-Precision Three-Phase Split Core Open Type AC Current Transformer
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TR Measurement of CT 1A/5A Using High-Precision Three-Phase Split Core Open Type AC Current Transformer
TR Measurement of CT 1A/5A Using High-Precision Three-Phase Split Core Open Type AC Current Transformer
TR Measurement of CT 1A/5A Using High-Precision Three-Phase Split Core Open Type AC Current Transformer
TR Measurement of CT 1A/5A Using High-Precision Three-Phase Split Core Open Type AC Current Transformer
TR Measurement of CT 1A/5A Using High-Precision Three-Phase Split Core Open Type AC Current Transformer

TR Measurement of CT 1A/5A Using High-Precision Three-Phase Split Core Open Type AC Current Transformer

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Product Description

Basic Information
Model NO.
TRFK-36C-3
Phase
Single
Operation Condition
Indoor
Usage
Protection, Measurement
Winding Form
Small Fixed Type
Insulating Medium
Common Insulating Materials
Installation
Active Type
Magnetic Circuit
Combined Type
Rated Primary Current
200A~600A
Rated Secondary Current
1A, 5A
Aperture
36mm
Package Size
10.00cm * 10.00cm * 10.00cm
Product Description
Main Characteristics

• The buckle structure is fixed and the stability is good.

• Adopt high magnetic permeability core, good linearity and high sensitivity.

• Terminal output, easy to install.

Applications

Rural power grid reconstruction project, Online environmental monitoring, Smart fire-fighting power consumption, Smart power consumption system, Power quality analysis and electrical equipment signal collection.

Electrical Parameters
ParameterSpecification
TypeTRFK-36C
Rated Primary Current200A~600A
Rated Secondary Current1A, 5A
Overload1.2 times
Rated Capacity1VA, 2.5VA, 3.75VA
Aperture36mm
Ratio Error±0.5%, ±1.0%
Working Frequency50/60 Hz
AC Isolation Test3kV AC/1mA 10s
Operating Temperature-25ºC~+75ºC
WeightAround 580g
Accuracy Parameters
Input Current 1%In 5%In 20%In 100%In 120%In
Ratio Error (%) - ±1.5 ±0.75 ±0.5 ±0.5
Phase Error (′) - ≤180 ≤90 ≤60 ≤60
TR Measurement CT
Split Core Transformer
Connection Specification Example: For 200A/5A, when input is 200A, S1 and S2 are output (S1||S3, S2||S4). When input is 400A, S1 and S4 are output (S2 and S3 in series).
Installation Instructions
Warning: Please use professional and appropriate protective equipment to prevent electric shock and ensure safety.
1Before installing, ensure the circuit is powered off. Live installation requires professional personnel.
2Open the protective cover, connect wires to the terminal output and measuring equipment.
3Open the transformer latch for installation.
4Place cable inside the hole. Ensure current direction matches the arrow. Lock latch and fix with nylon ties.
Fig.1 Connection Methods
Parallel Connection
Series Connection
Fig.2 Latch Operation
Open Latch Parallel
Open Latch Series
Fig.3 Cable Fixing
Fixing Parallel
Fixing Series
Product Gallery
Product View 1
Product View 2
Product View 3
Product View 4
Product View 5
Product View 6
Technical Dimensions
Dimension 1 Dimension 2
Chart 1
Chart 2
Detailed Spec
Frequently Asked Questions
Q: What is the main advantage of the split-core design? A: The split-core buckle structure allows for easy installation on existing cables without disconnecting the circuit, ensuring high stability and convenience.
Q: What are the primary applications for the TRFK-36C-3? A: It is widely used in rural power grid reconstruction, online environmental monitoring, smart fire-fighting, and power quality analysis systems.
Q: What is the rated primary current range? A: This model supports a rated primary current range from 200A to 600A.
Q: Can it be used outdoors? A: The standard operation condition for this current transformer is indoor use.
Q: What is the secondary output current? A: It provides a rated secondary current of either 1A or 5A, depending on the specific configuration.
Q: What is the aperture size for the cable? A: The aperture size is 36mm, which accommodates various standard power cables.

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