SUMAN CONTROLS PRIVATE LIMITED Peenya, Bangalore, Karnataka

The purpose and function of a Voltage transformer is almost like that of a current transformer except that high voltages are transformed to manageable low voltages to operate metering and protective systems. Generally Volatage Transformeris like a power transformer directly connected to a system line. Separate windings are provided for a metering and protection with different accuracies and voltagfactor required for various applications. We at Suman Controls manufacture the class of cores also. DESIGN Suman Controls P Ltd manufactures the following types of voltage transformers.   Single Pole (Neutral Earthed)Double Pole(Line to Line)33KVThree phase (Neutral Floating/Earthed) up to 33KV On request from users voltage factors varying from 1.2 to 1.9 continuous are offered to suit various system earthing conditions. CONSTRUCTION OF VOLTAGE TRANSFORMER Primary and Secondary windingElectromagnetic Core (Yoke)Tank and Space for oil ExpansionHollow Porcelain bushing

These are three phase Voltage transformers used for earth fault identification. A number of items have been supplied all over the country. OUTDOOR EPOXY MOULDED INSTRUMENT TRANSFORMERS   These are Epoxy moulded instrument transformers place in a moisture proof MS tank and filled with oil. Alarge number of such units have a been supplied by as all over the country.

The above-mentioned price is tentative only, the price will vary based on an actual technical specification

Type : High Voltage Transformer

Rated Voltage : 110kV

Warranty : 2 Year

Packaging Type : Wooden Box

Accuracy Class : 0.1 to 1.0 & 0.2S, 0.5S

Frequency : 50Hz

Dimension : Customer requirement

Porcelain hollow bushings with Brown or Grey glaze conforming to international standards are used with required creepage levels in our transformers. Metal flanges embedded in the collar on either side are used. Nitryl rubber gaskets on either side collar are used to achieve a longer life

as high accuracy is required for measurement purpose and high operating values required for protection purpose, these two functions are met distinctly in a current transformer by providing metering core and protection cores separately with different functional properties. now a days in view of high cost production of electrical energy, utilities specify very high accuracy class such as 0.5s & 0.2s (as per established standards) which measure energy accurately at a value as low as 1% of the transmitted current.   we at suman controls manufacture the class of cores also.design we at suman, depending on customer specification, manufacture two type designs.live tank design & dead tank design.   we also meet the customer requirement of provision to select different ratios on different cores. the ratio of can be selected on primary side selection secondary side selection and a combination of the above two. construction of current transformer in addition to the above, a current transformer, being a series element has to withstand large dynamic forces and high thermal stresses during short circuit currents appearing in the lines at the incidence of a faults on the main lines to help clearing of such disturbance as early as possible. adequate short circuit tests have been conducted on our current transformers. we also under take to conduct these tests on specific request from buyers. insulation high voltage, impulse and partial discharge tests to determine the quality of insulation between primary and other parts have been specified by standards to ensure the quality of insulation between primary and other parts. high quality insulation paper is used for main insulation of the ct between primary winding and secondary winding. in case of ehv current transformers, the insulation will be segregated and sectionalised with introduction of semi conducting tape in between to see that the voltage distribution is uniform thus avoiding high level of electrical stresses. to eliminate dust settlement on the insulation during the process of manufacture endangering insulation, entire process of insulation is carried out in dust free chambers.

Usage : Outdoor, Industrial, Electricity Distribution

Type : Current Transformers

Brand Name : SUMAN CONTROLS

Material : Copper

Certification : ISO 9001 2015

Three oil immersed CTs and three PTs are mounted in a single outdoor type container to be used for measurement of Energy and related values for small industrial plants where elaborate system is not affordable. A large number of such units have been supplied by us all over the country. Combined CTPT Metering Panels with built in Instrument:   transformers and Energy meter. Some utilities specify such modules for metering purposes. In these cases Resin cast Instrument transformers are made use of. It is also possible to provide on load break switches in the incoming side for isolation purposes.