Automatic Electric Ltd. Wadala, Mumbai, Maharashtra

Any Double Wound Transformer is internally an isolation transformer as the primary and secondary are isolated from one another through insulation. However, modern machines and systems need a truly isolated, clean and stable power requirement. This is ensured by an Ultra Isolation Transformer (UIT), it provides for total electrical and electrostatic isolation with most effective screening of spikes, surges and transients, further it gives a true isolated local neutral and dedicated earth which is very essential for modern machines. Ultra isolation Transformer attenuates common mode noise and transverse mode noise and provides for noise or interference free power. In principle, UIT only transfers 50 Hz. Power by transformers action through mutual inductance. It prevents transfer of RF and HF disturbances with extensive insulation between primary and secondary. The insulation levels withstands HV breakdown strength of 2.5 KV and gives a DC Galvanic isolation of above 1000 megohms.

Brand Name : AEL

Material : Stainless Steel

Color : Standard

Brand Name : AEL

“Highly Adaptable DPMs suitable for a wide range of measuring applications”. The measurable input current/voltage is user programmable. Aux. Supply is galvanically isolated from measuring circuit.Measuring range is from 1 % to 120 % of the full scale indication. CT Ratio / PT Ratio are fully programmable through front Two switches provided on the Front side. User can enjoy the freedom to set primary value as well secondary values suitable for his application. (for Voltmeter (KVAC) Primary – upto 7999 kV & for Ammeter Primary – upto 7999A).   Features: True RMS measurement. State of Art Microcontroller Based Design. 3PH. AC Current and Voltage ranges. Onsite Programmable CT/PT ratio. 4 digit ultra bright LED Display.

Brand Name : AEL

Country of Origin : India

Efficiency : Above80%

Brand Name : AEL

Following are main factors for selecting Voltage Transformer. Service Voltage:System Voltage in which V.T is to be installed e.g. 11kv, 22kv, 33kv etc. Installation:Whether OUTDOOR or INDOOR Atmospheric Conditions:Such as condition of Pollution, Altitude, Ambient Temperature etc. Insulation Level:If insulation level other than associated with service voltage is required, it should be specifically mentioned. Rated Primary Voltage:Rated primary voltage is generally rated system voltage for unearthed type V.Ts. and rated system voltage divided by square root of three for earthed type V.Ts. The V.Ts. can be manufactured suitable for more than one system voltage. In such cases, different primary voltages required may be indicated. Rated Secondary Voltage:Standard Values of Secondary voltages are 110v or 110v/\13 depending on application of the secondary winding. V.Ts. with different secondary voltages other than those mentioned above can be manufactured and supplied. Voltage Factor:All V.Ts, are manufactured suitable for continuous voltage factor of 1.2. As per I.S. / L.E.C. Specifications, short time voltage factor is different for different earthing systems. Therefore appropriate system earthing conditions may be specified. Number of secondary windings. Their burdens & accuracy classes:Number of secondary windings, their burdens and accuracy classes are selected on the basis of application. Two types of classes are available, one for metering and other for protection. Unlike current transformers, accuracy of one winding is influenced by loading of other winding. Due to this reason burden of each winding should be correctly mentioned. Accuracy of V.T. is guaranteed at the secondary terminals of the V.T. The impedance of cable connecting secondary terminal to load (Relay or Meter) offers series drop in output voltage. This causes additional errors in secondary winding at the measuring end of cable and is proportional to the load on the secondary. Therefore, it is advisable to select separate metering and protection winding. Alternatively, single winding can be used for metering and protection if separate cables are used for connections. (Cable of 4 sq. mm. cross section offer 2% voltage drop at 100 metres distance will 100 VA burden for secondary voltage of 110v/A).  

Country of Origin : India

Weight : 10-20kg

Voltage : 110V

Power : 1-3kw

Power : Ac , DC

Material : Copper

Phase : Single , Three

Brand Name : AEL

Weight : 10-20kg

Voltage : 110V

Warranty : 1year

Phase : Single, Three

Brand Name : AEL

Brand Name : AEL

Automatic Grade : Automatic

Application : Industrial Use

Feature : Easy To Use,Electrical Porcelain,Four Times Stronger,Proper Working,Superior Finish

Display Type : Digital

Country of Origin : India

Color : standard

Voltage : 50v to 500v Ac for 25 to 60 Hz

Brand Name : AEL

Product Details Unmatched quality High strength Affordable rates Precise design Seamless finish Long lasting nature  

Country of Origin : India

Number of Phase : Single Phase

Warranty : 1 Year

Surface Finishing : Polished

Weight : 5-10 Tons

Overall Length : 10-15 Inch

Packaging Type : Wooden Box, Carton Box

Speciality : Robust Construction, Easy To Use, High Efficiency

Winding Material : Copper

Brand Name : AEL

Highly Adaptable DPMs suitable for a wide range of measuring applications”. The measurable input current/voltage is user programmable. Aux. Supply is galvanically isolated from measuring circuit.Measuring range is from 1 % to 120 % of the full scale indication. CT Ratio / PT Ratio are fully programmable through front Two switches provided on the Front side. User can enjoy the freedom to set primary value as well secondary values suitable for his application. (for Voltmeter (KVAC) Primary – upto 7999 kV & for Ammeter Primary – upto 7999A).   Features: True RMS measurement. State of Art Microcontroller Based Design. 3PH. AC Current and Voltage ranges. Onsite Programmable CT/PT ratio. 4 digit ultra bright LED Display.

Brand Name : AEL

Application : Indsustrial Usage

Weight : 100-200gm

Feature : Accuracy, Durable, Low Power Comsumption

Voltage : 3-6VDC

Display Type : Analog

Frequency : 50Hz-65Hz

Power Source : Electric

Warranty : 1Year

Brand Name : AEL

Phase : Single Phase

Mounting Type : Floor

Payment Terms : Online

I Also Provide : Fresh

Country of Origin : Made in India

Brand Name : AEL

Country of Origin : India

Application : Ph: 0.01-14.00 Ph

Condition : New

Driven Type : Electric

Communication : RS-485

Control : Computer Monitoring

Brand Name : AEL

Dimension : Standard

Display Type : Analog

Color : White

Brand Name : AEL

The PMT-9 Multifunction Programmable Transducer measures the several variables of an electric power system and processes them to produce 4 analog output signals. 2 digital output signals are available for signaling the limits. The limits of the outputs can be set by individual measurand or logically combine up to three measurand. The principle of measuring is Dedicated DSP Controller for best calculation of RMS values and Power.   The PMT-9 is equipped with USB serial port interface through which using the corresponding software one can connect, program, or access and execute useful ancillary functions. The ancillary functions include a power system check, provision for displaying the measured variably on a PC monitor, the simulation of the outputs for test purposes.   The PMT-9 is also equipped with a RS 485 bus interface (MODBUS®). The RS 485 interface enables the user to determine the number of variables to be supervised (up to the maximum available). The levels of all internal power/ energy meters that have been configured can also be viewed. Provision is made for programming the PMT-9 via the bus. A standard EIA 485 interface can be used, but there is no dummy.   Features : Simultaneous measurement of several variables of a heavy-current power system / Full supervision of an asymmetrically loaded four wire power system, rated current 1 to 6 A, rated voltage 57 to 400V (phase-to-n€ utral) or 100 to 693 V (phase-to-phase)For all heavy-current power system variables. Fully Programmable CT and PT Ratio. 4 analogue outputs Digital Outputs Conversion of a current to a voltage output or vice versa is also possible without any hardware change. Input voltage up to 693 V (phase-to-phase) Universal analogue outputs (programmable) High accuracy: U/I 0.2% and P 0.25% (under reference conditions) Windows software with password protection for programming, data analysis, power system status simulation, acquisition of meter data and making settings

Brand Name : AEL

AE- 65(45) Series Model 65/14, 65/21 available in Accuracy Class 0.5, 1 & Class 3 Orders for different ranges of CT’s are accepted on request. 5A & 1A Secondary available. For all transformers DIN RAIL plate can be supplied (as per DIN EN 50022) on request.  

Country of Origin : India

Certification : ISO 9001:2008

Rated Voltage : 110V

Rated Power : 10 KW

Warranty : 1 Year

Surface Finishing : Polished

Weight : 5-10 Tons

Overall Length : 10-15 Inch

Speciality : Robust Construction, Easy To Use, High Efficiency

Brand Name : AEL

Power Source : Electric

AUTOMATIC ELECTRIC LTD. introduced their indigenously developed INSTRUMENT TRANSFORMERS in the year 1968. Since then ‘AE’ are one of the leading Manufacturers in the Country for quality instrument Transformers. ‘AE’ manufactures OUTDOOR OIL COOLED VOLTAGE TRANSFORMERS ranging from 11kv to 220kv. The Modern Plant situated at Ambernath is equipped with full range of testing equipments, plant & machinery to manufacture INSTRUMENT TRANSFORMERS. ‘AE’ have supplied thousands of these transformers to almost all the STATE ELECTRICITY BOARDS and utilities in the Country. These INSTRUMENT TRANSFORMERS are working satisfactorily under different service conditions at the sites. ‘AE’ are also EXPORTING transformers. The instrument transformers are fully type tested in accordance with latest I.S. /I.E.C. Specifications.   APPLICATION :  Direct measurement of voltage in High Voltage System is not possible because of insulation problem of measuring instruments. It is also not possible to use direct voltage for the system protection purpose due to its high value and high insulation problem of protective relays. Therefore, voltage transformers are used to step-down the high system voltage to low standard value accurately in proportion to their ratio.

Country of Origin : India

Application : Industrial Use

Feature : Easy To Install, Electrical Porcelain, Four Times Stronger, Sturdy Construction, Superior Finish

Condition : New

Frequency : 0-50Hz

Tensile Strength : 0-25Mpa

Warrenty : 1yr

Production Power : 100-250kw

Brand Name : AEL

AUTOMATIC ELECTRIC LTD. introduced their indigenously developed INSTRUMENT TRANSFORMERS in the year 1968. Since then ‘AE’ are one of the leading Manufacturers in the Country for quality instrument Transformers. ‘AE’ manufactures OUTDOOR OIL COOLED VOLTAGE TRANSFORMERS ranging from 11kv to 220kv. The Modern Plant situated at Ambernath is equipped with full range of testing equipments, plant & machinery to manufacture INSTRUMENT TRANSFORMERS. ‘AE’ have supplied thousands of these transformers to almost all the STATE ELECTRICITY BOARDS and utilities in the Country. These INSTRUMENT TRANSFORMERS are working satisfactorily under different service conditions at the sites. ‘AE’ are also EXPORTING transformers. The instrument transformers are fully type tested in accordance with latest I.S. /I.E.C. Specifications.   APPLICATION :Direct measurement of voltage in High Voltage System is not possible because of insulation problem of measuring instruments. It is also not possible to use direct voltage for the system protection purpose due to its high value and high insulation problem of protective relays. Therefore, voltage transformers are used to step-down the high system voltage to low standard value accurately in proportion to their ratio.

Country of Origin : India

Application : Industrial Use

Feature : Easy To Install, Electrical Porcelain, Superior Finish

Condition : New

Frequency : 50-100Hz

Tensile Strength : 0-25Mpa

Brand Name : AEL

1.Service Voltage :System Voltage is which CT is to be installed e.g. 11 kV, 22 kV, 33 kV. etc.2.Installation :Whether OUTDOOR or INDOOR3.Atmospheric Conditions :Such as condition of Pollution, Altitude Ambient Temperature etc.4.Insulation Level :If insulation level other than associated with service voltage is required, it should be specifically mentioned5.Rated primary current :Specify rated primary current / currents (if required more than one value) Also indicate if different primary current is required for different cores.6.Continuous Primary current :Max. primary current that can be withstood continuously by current transformer e.g. 120% of primary current.7.Rated secondary current :Whether 1 Amp or 5 Amps8.Short Time Current & its Duration :Specify fault current of the system in which CT is to be installed along with its duration. It is most important to specify realistic value of S.T.C. as at lower primary current, higher S.T.C. value necessitates bulky & costlier design. Also specify dynamic current if other than 2.5 times S.T.C. is required.9.No. of cores Their Burdens Accuracy :Basis of application, No. of cores, their burdens and accuracy class should be specified. It is advisable to specify minimum required Burden for metering core as unnecessary high burden will necessitate for bulky and costlier design. Specified accuracy is guaranteed for 100% to 25% of rated burden only. Current transformer offers minimum error if 75% to 60% burden is connected to secondary. Therefore, ideally rated burden higher than 1.5 time actual burden should be specified.Also, it is important to specify correct burden in context of Instrument Security Factor (I.S.F.) The I.S.F. indicates the over current as multiple of rated current at which the metering core will saturate, thus limiting the secondary current flowing through meter and protect it from damage. If actual burden connected is half of the rated burden, the actual I.S.F. will increase two-fold of its rated value.10. Knee point voltage, Secondary resistance and excitation current :For differential protection. R.E.F. Protection, Bus Bar Protection. C.T. with accuracy class PS is required. The Knee Point Voltage. Secondary resistance and excitation current should be specified for this core. It is always better to specify Formula for Knee Point Voltage related to relay used for the protection. This will help designerto optimise the design.

Country of Origin : India

Speciality : Robust Construction, Easy To Use, High Efficiency

Power : 36/70/170 kV

Phase : Single Phase

CT Ratio : 80/1-1 A

Material : Copper

Brand Name : AEL

Voltage : 110V or 440 V ( L-L ), AC / DC: 85 V - 300 V.,For Voltage / Current - 0.2 VA max per Volt/Amp input

Display Type : LED

Brand Name : AEL

Moving Iron Instruments are protected from damage or breakage under adverse condition due to its spring loaded jewel & pivot system. These Instruments are free from external magnetic field influences because of magnetic shielding & are ‘CE’ certified. These instruments have a very efficient oil damping system, which gives almost a deadbeat movement to the pointer, without irksome oscillation. The movement is light yet sturdy and has a large torque to weight ratio which assures long life to instruments.These indicate true RMS values practically independent of waveform even of high harmonics.The scale is compressed initially. Readability starts from 10 to 15 degree approximately.Features Scale : Non-linear. Suppression : Initial suppression for Voltmeter & End suppression upto 6 times for Ammeter. (on request) Scale Colour : Special colour scales and marks for different ranges, (on request). Housing : Engineering plastic. Terminal Protection : Shrouded terminals to protect from accident, (on request). Glass : Anti – glare.

Country of Origin : India

Application : Industrial Use

Feature : Easy To Use, Electrical Porcelain, Four Times Stronger, Superior Finish

Condition : New

Display Type : Analog

Brand Name : AEL

Moving Coil Instruments are protected from damage or breakage under adverse conditions due to spring loaded jewel & pivot system. These Instruments are free from external magnetic field influences because of centre magnet system and are “CE” certified.Voltmeters are made upto 600V for direct connection and upto 1200V with / without external multiplier with sensitivity 1000 ohms / V. Higher sensitivities are available. Scale printed for other variables viz. Speed, Temp, pH, kW, kVAR, Hz or Cos ¢ (p, etc. can be supplied on request.Ammeters with internal shunts are available upto 30 Amps and for higher currents upto 12000 Amps use external shunts of 50mV, 60mV, 75mV etc. (Please refer data sheet no. Shunt 03/99.)

Country of Origin : India

Application : Industrial Use

Feature : Easy To Use, Electrical Porcelain, Superior Finish, Water Proof

Condition : New

Display Type : Analog

Brand Name : AEL

Country of Origin : India

Weight : 0-500 Gm

Frequency : 45 Hz

Driven Type : Electric

Dimension : 96Wx 96Hx100D Mm

Environmental : 96%

Temperature : -20 Deg C To + 20 Deg C

Auxiliary Supply : 230 VAC

Panel Cut Out : 90x90 Mm