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Now design LT & LT/HT Current Transformers with Softbit CT
Design Software Tool. This CT design calculation tool is very fast. Just a few inputs and click. Your Design is ready. Still
not satisfied with the output, change the inputs to match your requirements.
More About The LTCT Design
Software Tool Design Software For HT Current Transformers
About A Current Transformer: A CT or current transformer is used to measure the current flowing
through an electrical systems say ac motors, transformers, panels and so on. In
case where current flowing through the electrical system is high and continuous
monitoring is required, CT or current transformers are used with the system. So
CT design or current transformer design plays a very inportant role in the
manufacture and and hence to measure the load current. CT or current
transformers are further divided into two catagories viz., measuring CT or
measuring current transformer, Tariff CTs for energy
measurement and finally, protection CT or protection current
transformer. Class of accuracy of a CT or current transformer catagorises a CT
or current transformer as measuring or protection. As CTs or current
transformers are being an integral part of any electrical system today so CT or
current transformers are required in abondance. So the CT design or current
design software tool plays an important role in designing a good CT or current
transformer.
Terms Associated With Current Transformers: Burden of a load to be
connected with CT secondary winding. So a CT must be designed to handle the
burden of connected load.
CT Ration is ratio of primary current divided by
secondary current. A CT of ration 100/5 means A CT of ratio 20. This is also the
number of secondary winding turns
CT Application is decided based upon the load type
it has to measure. Like if a CT is used to measure the current flowing in the
system or primary then it is cally a Measuring CT. If a CT is usedfor the
measurement of energy then its called a Tariff CT. And finally, if a CT is used
to measurefault current and control the protection system then itis called a
Protection CT.
Accuracy Class is very necessary feature of a CT
and is decided by the user/system integrator that how accurate measurent is to
be done so according he/she decides about the Accuracy Class of a CT. CT are
available in classes - 0.1, 0.2, 0.2S, 0.5, 0.5S and 1.
CT Manufacturing:
CT or current transformers are manufactured according to system voltage also. In
India there a so many companies who are manufacturing CTs or current
transformers and supplying to state elctricity boards, panel builders,
industries, test labs etc.,. AE, MECO, RISHAB, L&T, BENTEX are some of the brands manufacturing
CT or current transformers in India.
Traditional Current Transformer Design / CT Design:
To design a traditional current transformer (CT) we need to know its VA rating
and frequency at which it has to operate. By using our pan lang="en-in">CTCT
Design Calculation Software tool you
get all output parameters like secondary turns, wire size, accuracy, total
losses, CT OD, ID and height as well as core area etc.,. You have the options to
select core materials before proceeding for design. Save your design parameters
and take a print out for distribution to in house departments.
In favour of: Softbit Designs Bank Name: AXIS BANK Current Account No.:
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In favour of: Softbit Designs Bank Name: AXIS BANK Current Account No.:
919020009869944
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Branch: Mansarover Garden, New Delhi - 110015 Swift Code: AXISINBBA68
LT Current Transformer Design Software are used to detect the change in flow
of current in an electric circuit or system. This change in current induces a
varying emf in the CT or current transformer witch in turn is fed to a meter for
converting the emf value in proportionate current or Ampere value. So a CT is
always connected to measure electrical currents in a high
value current carrying circuit. CTs are manufactured
in different shapes to fix on a flate busbar, round cable, panel mount, air
cooled, epoxy coated for high temperatures, round shaped CTs, rectangular shaped
CTs. All the CTs use a single core laminations of specified width as calculated
by the software and of required length. The thickness of the core lamination is
selectable as per requirement. This core lamination is then rolled into
a ring to make the final cross section area of ring as calculated by the
software. The shape of the rolled lamination may be circular or square.
Generally round shaped CTs are used with cables and square shaped are used with
with busbars. The CTs / current transformer may be hanging type or mounting
type. In mounting type CTs clamps are provided to fix the CTs on a base.
The winding of CTs over the round shape or ring shaped core is done manually or
with the help of special machines. WInding of CTs with machine is more easy and
very safe. The load wire passing through the CT core acts as pripary winding.
When a load current flows through this wire a varying electrostatic field is
developed across the wire. In turn a varying electromagnetic field is develoed
in the core of the CT. The frequency of the magnetic field is same as of primary
conductor. An emf is induced in the secondary winding of the CT. The gause of
secondary winding depends upon the rating ofthe CT and indused voltage and
choosen so that no voltage drop happens in the secondary winding. Else a
drop factor has to be applied. To be contibued...
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Transformer design software is a multiple utility tool to design different types
of transformers. This
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design software can design HT Transformers, LT Transformers, Control
Transformers, generators transformers, solar panel step up transformers, current
transformers. Transformer design software generates winding data, reports, core
charts, tank design, estimation costing. Transformer design software can help
the engineering students to learn design of various types of transformers.
Transformer manufcatures find this Transformer design software as a key
design tool.
## Another way to protect circuits under the 17th Edition IET Wiring Regulations is by fitting Residual Current Circuit Breaker With Overload (RCBOs) to every circuit, and although this is more costly than the RCD+MCB's option, it means any fault condition on a circuit trips only that circuit's RCBO, so the search for the fault is narrowed down from the start. When an electrician must be called out, this localised fault can be resolved faster (and therefore cheaper) in contrast with the RCD+MCB's arrangement, which only indicates a fault somewhere within that RCD's set of circuits. A small number of pre-1950 fuseboxes are still in service. 01042025 ##.
