3 phase rogowski coil with integrator

3 phase Flexible Rogowski Coil 

N-L Type 3 phase rogowski coil

N-L 3 phase rogowski coil can monitor AC currents up to 100KAmps. They can be opened and are flexible for ease of installation around bus bars and multiple conductors.

They are intended for field installation within distribution and control equipment such as panel boards, switchboards

and industrial control equipment to measure the current on branch circuits and feeders.

N-L 3 phase rogowski coil may be used with electric energy meters, or for other current measuring purposes.

N-L 3 phase rogowski coil are different in a few key ways from standard CTs. They do not contain a ferromagnetic core, so they will not saturate, they have excellent linearity, and they have every low phase angle errors.

Because they lack a core, it is possible to make them flexible and lightweight. Furthermore, the coil output signal is low voltage (less than one volt AC) and low current (micro amps or less) , so they are safer than ratio CTs. N-L rogowski coil generally require a integrating   conditioning circuit, since the output of the coil is the derivative of the actual current.

N-L 3 phase rogowski coil are very dependent on the uniformity of the winding in the sense coil, making them more sensitive to the position of the conductor(s) being measured in the opening and more sensitive to the magnetic fields from external conductors.

N-L 3 phase rogowski coil mainly provide high accuracy measurement for power frequency current from 1A to 100kA.

Advantages

l   Simple to install(especially in limited space)

l   Wide dynamic current range

l   No magnetic saturation

l   No open circuit danger, No overload

      danger, Intrinsically safe.

l   Wide bandwidth

Applications

l  Power meters

l  Condition monitoring

l  Distributed measurement systems

l  Electric furnace

l  Relay protection

l  Grounding current monitoring

l  High-Voltage current monitoring

Why choose a flexible rogowski coil from Jiangyin spark

People always ask me, why choose you, give us some reason.

• I’m a flexible guy, look at my body, simple to retro-fit, I can be used in the complex env

• ironment, look at my body again, light weight, flexible and robust.

• I’m a superman, I can big or small. My coil length can between 500px to 5000px, so cool.

• I’m a math genius and very sensitive to data, so my accuracy is perfect: ±1%.

• I’m from elite school, all of my materials pass the UL Certifications and CE Certifications, and my team founded in 1995, they are the first on produce rogowski coil in china, they are the best in china, and they got some patents, so you can see my quality is competitive

• As you know i’, m from china(cheap manpower), so I have a competitive price, (much cheaper than flexible rogowksi coil in Europe and America) I have sold to over 25 countries and can count major international companies, government bodies and research institutions as my customers, so you can see I’m a popular guy.

• And I’m very safe-No danger of an open circuit secondary and galvanic isolation, of course my excellent linearity (I have no magnetic materials to saturate)

• So remember my name: JIANGYIN SPARK flexible rogowski coil, and waiting for your inquire.

Drawing

 

 3 phase rogowski coil's order

 

 

 

CE certificate

 

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