TR Open Close Type Current Transformer Measurement 10-2000A Rogowski CT Coils Flexible

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Product Description

Technical Specifications

Model NO.
TRKLS-200R-4
Phase
Single
Operation Condition
Indoor
Usage
Protection, Measurement
Winding Form
Single Layer & Tightly Wound
Insulating Medium
Insulating Paper
Installation
Active Type
Voltage Level
0.4/0.66/0.72kv
Rated Input Current
10~2000A
IP Protection Class
IP65
Skeleton and Quilt
Silicone Rubber
HS Code
850450

Product Overview

TRKLS-R series split-core three-phase flexible Rogowski coils are primarily engineered for the measurement and protection of three-phase current in power lines. The output signal represents the differential of the current against time, which, through an integrator, allows the measured current to be accurately restored.

Key Advantages: Excellent transient response, zero hysteresis, no magnetic saturation, wide measurement range, and high precision frequency response.

The split-core structure, combined with a flexible silicone rubber quilt and skeleton, enables the measurement of conductors with large sizes or irregular shapes. Its lightweight design requires minimal installation space and eliminates the need to damage the conductor during setup.

Performance Parameters

Parameter Value Parameter Value
Working Temperature -40ºC ~ +70ºC Relative Humidity ≤90%
Accuracy Class 1% (with integrator) Phase Error ≤60' (45Hz~65Hz)
Linear Range 5% ~ 200% Response Bandwidth 1Hz ~ 1MHz
Insulation Strength 1000MΩ/500V/min Shell Material PC Flame Retardant 94-V0

Core Features & Applications

Easy Installation

Split-core structure allows for quick installation or removal without disconnecting primary cables.

Flexible Design

Detects current in irregular primary conductors where traditional CTs fail.

High Linearity

Low output voltage and wide frequency range with no magnetic saturation.

Applications: Measurement of high current AC signals (short-circuit), pulse signals (lightning), harmonic analysis, electric welding machines, and rail current measurement.

Dimensions & Models

Model No. Rated Input Rated Output Φ1 (mm) Φ2 (mm)
TRKLS-100R 600A 333mV 100 8
TRKLS-200R 1000A 50mV 200 8
TRKLS-300R 1000A 90mV 300 10

Frequently Asked Questions

What is the primary use of the TRKLS-R Rogowski coil?
It is mainly used for measuring and protecting three-phase current in power lines, especially where traditional solid-core CTs cannot be easily installed.
Can I install this coil without cutting the power?
Yes, the split-core and flexible design allow for installation around conductors without disconnecting the primary cable, ensuring a safe and convenient setup.
Does the coil suffer from magnetic saturation?
No, because Rogowski coils do not have a magnetic core, they do not suffer from hysteresis or magnetic saturation, allowing for a very wide measurement range.
What is the IP protection rating for this product?
The TRKLS-R series features an IP65 protection class, making it resistant to dust and low-pressure water jets.
What type of output connection does it use?
The secondary output typically adopts an RJ45 crystal terminal network cable, and the length can be customized based on specific requirements.
What is the operating temperature range?
The device is designed to operate reliably in temperatures ranging from -40ºC to +70ºC.

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