Current Transformer
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A CurrentTransformer (CT) is a transformer that either diminishes or multiplies
alternating current. It generates a secondary current that is proportional to
the primary current. Current transformers are power system current-sensing
units found in generating stations, electrical substations, and industrial and
commercial electric power distribution. Although some transformers, including
current transformers, use an air core, they all have a primary winding, a core,
and a secondary winding. Current transformers, voltage transformers, and potential
transformers are examples of instrument transformers. Instrument transformers
reduce large voltage or current values to small, standardized values that can
be handled by measuring instruments and protective relays. Instrument
transformers protect measurement and protection circuits from the primary
system's high voltage. A current transformer produces a secondary current that
is precisely proportional to the primary current. The connectivity features are
not burdened by the current transformer.
Types
of Current Transformer:
Indoor
Current Transformer: In low-voltage circuits, indoor current
transformers are commonly used. They are classified into several types,
including window, wound, and bar. The wound type, like the basic type, has two
windings, primary and secondary. Because of their high accuracy and high values
of primary ampere turns, these are used in summing cases. The bar-type
instrument has primary and secondary cores. The primary bar is an important
part of this form. Because of the magnetization effect in the core, the
accuracy of this device can be reduced.
Outdoor
Current Transformer: High-voltage circuits, such as
switchyards and substations, use outdoor current transformers. These are
available in two varieties: SF6 gas insulation and oil-filled. When compared to
oil-filled form transformers, SF6 insulated current transformers are
lightweight. The pinnacle tank can be connected to the primary section of the
current transformer, which is introduced as a live tank construction form. Small
bushings are used in this structure because both the primary conductor and the
tank have the same capacity.
Bushing
Current Transformer: This transformer is similar to the bar
form in that the secondary section and core are installed in the primary conductor
section. The transformer's secondary section can be twisted into a circular
shape that differs from the annular-shaped core. It is connected to the
high-voltage bushings that run across power transformers, circuit breakers,
switchgear, and generators.
Portable
Current Transformers: These transformers are highly accurate
and are commonly used in power analyzers and high precision ammeters. These
transformers are available in a variety of configurations, including clamp ON
portable, flexible, and split-core. These devices are commonly used to provide
isolation for sensing instruments from high-voltage circuits.
Protection
Current Transformer: A protection current transformer is
designed to perform well in over current conditions. This enables the specific
relays to precisely control the fault currents, even in very high current
situations. The secondary output is used to activate a protective relay, which
can isolate the section of the energy circuit that is experiencing a fault
state.
Current Transformers
are very important device in electrical transmission lines. The transformers
come in different capacities measured in terms of KVa. Buyers looking forward
to buy the transformers may send us their requirements through email or SMS.
Our listed sellers will be pleased to provide the best deals at unmatched
prices.
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Current Transformer Price List
This Data was Last Updated on 2023-11-30
Current Transformer Manufacturers | Suppliers in India
Company Name | Location | Member Since |
---|---|---|
Navago Electronics & Electricals | Bengaluru, India | 22 Years |
Mangal Engineers & Consultants | Ludhiana, India | 17 Years |
Khandelwal Agencies | Bhiwadi, India | 11 Years |
Lohiya Electricals | Bhavnagar, India | 10 Years |
Didac International | New Delhi, India | 9 Years |
Aditya Enterprises | New Delhi, India | 6 Years |
S. M. Engineering Co. | Vasai, India | 6 Years |
Abc Transformers Pvt. Ltd. | Noida, India | 5 Years |
Leelavati Automation Pvt. Ltd. | Mumbai, India | 5 Years |
Aryan Electrical & Automation | Delhi, India | 5 Years |
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