SOLUTIONS

Railways

Control of Power and drives in Railways, requires expertise in Power Electronics. Electrohms offers a range of accurate, reliable transducers for the measurement of current and voltage , that provides control and protection signals for locomotive and stationary track side applications.

Applications

Traction Converters
The traction inverter has to convert energy efficiently and power the drive motors of the locomotive. The conversion of energy (from direct current into three-phase alternating current) is made possible only by state-of-the-art power electronics.  ELECTROHMS offers closed loop current sensors and  hall effect based voltage transducers for these critical traction converter applications.
Auxilary Converters
Auxilary converter forms part of the auxiliary drive system in the ac locomotive which is primarily used for supplying power to loads such as fans, blowers, lighting the cabin and also charging the locomotive battery. It  typically has  a  IGBT configuration and is fed from the auxiliary winding of the locomotive transformer. ELECTROHMS has developed current sensors to meet the specifications of the manufacturers.
Electronic Rectified Regulated Unit
The ERRU 4.5Kw & 25 kW used in Indian Railway AC, non AC coaches , has input supply of 3-phase AC voltage generated from a brushless alternator. The output of the alternator is an  AC  variable voltage and variable frequency depending on the speed  of the train. The  AC voltage is converted to regulated DC voltage as required for AC and non AC coaches. It also charges a battery bank through a voltage and current controller. ELECTROHMS  closed loop current sensors are  being used by  manufacturers of  ERRUs for Indian Railways.

Featured Product

Closed loop hall effect current sensors are used in measurement of Alternating and Direct Current in electrical and electronic equipments such as SMPS, UPS, AC & DC industrial drives.

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Closed loop hall effect current sensors are used in the measurement of Alternating and Direct Current in electrical and electronic equipments such as SMPS, UPS, AC & DC industrial drives, in process control applications like light control, heater load control, etc.

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VJ500T03 - An integrated primary resistor networks determines the nominal measuring voltage of the sensor. It has high level of galvanic isolation and are suitable for high voltage measurements.

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An integrated primary resistor networks determines the nominal measuring voltage. The advantages of VHASM1K2T02 is Compact design, Excellent accuracy (offset, sensitivity, linearity), Good response time, Low temperature drift

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VJ1K0T03 - An integrated primary resistor networks determines the nominal measuring voltage of the sensor. It has high level of galvanic isolation and are suitable for high voltage measurements.

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VJ1K5T03 - An integrated primary resistor networks determines the nominal measuring voltage of the sensor. It has high level of galvanic isolation and are suitable for high voltage measurements.

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Closed loop hall effect current sensors are used in measurement of Alternating and Direct Current in electrical and electronic equipments such as SMPS, UPS, AC & DC industrial drives, in process control applications like light control, heater load control etc.

Resources

Closed loop hall effect current sensors are used in measurement of Alternating and Direct Current in electrical and electronic equipments such as SMPS, UPS, AC & DC industrial drives.

Resources

Closed loop hall effect current sensors are used in measurement of Alternating and Direct Current in electrical and electronic equipments such as SMPS, UPS, AC & DC industrial drives.

Resources

 

Custom Design

When an off-the-shelf component won't work, we can partner with you to design and produce custom products for your unique needs. Whether your challenge is regulatory compliance or technology innovation, we can help to reduce time to market and improve your bottom line.

We carefully investigate the design objectives based on the inputs received from you.
Based on cost, size, packaging, electrical performance, certification or approvals required, we create a template of product design
Quote submitted with clear specifications, lead times for prototype and production batches, along with commercials
Rapid prototyping ensures quick shipment and reduction in approval time.
After acceptance of prototypes, a test and acceptance criteria is prepared and same is set up for the regular production batches by our production and Quality assurance team
We ensure that the product required is delivered within the accepted schedule. Hence, if you require a customized solution, we are the right organization to be contacted