OVER CURRENT AND EARTH FAULT RELAY VN 100R

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Restricted earth fault relay VS64RRS1

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Tripping Relay V86RH

Very High Operating Accuracy.Design Flexibility for easy operating characteristics.

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Products

List of Products

Features

  • Micro-Controller based numerical design.
  • Very High Operating Accuracy.
  • Design Flexibility for easy selection of operating characteristics.
  • Both 1A & 5A CT Inputs in a relay.
  • Both AC & DC auxiliary supply available.
  • RS232 serial port for Program loading.
  • Password Protected.

Applications

  • The relay VN100R is suitable for all the applications where over-current and earth-fault protection are required.
  • The VN100R relay provide a comprehensive suite of automation features for easy and flexible adaptation under different operating conditions.
  • Time - Current graded over current and earth fault protection of distribution systems, backup protection for generators, transformers, transmission lines etc.,

Features

  • Micro-Controller based numerical design.
  • Very High Operating Accuracy.
  • Design Flexibility for easy selection of operating characteristics.
  • Both 1A & 5A CT Inputs in a relay.
  • Both AC & DC auxiliary supply available.
  • Communication Protocol 61850 for SCADA (RS485) and USB port for Program loading.
  • Password Protected.

Applications

  • The VN200R relay is suitable for all the applications where over-current and earth-fault protection are required. Directional & Non-Directional,voltage, frequency protections and power measurement.
  • 1A and 5A dual rated CT inputs are available with all VN200R relays using separate terminals. The auxiliary voltage for the power supply and the digital inputs is a wide-range design from 20 to 250 V AC/DC.
  • The three phase over current and earth fault relay VN200R is used for short circuit and earth fault protection based on the time – current grading principle, at power plants and electrical substations of utilities as well as industries.
  • The relay VN200R is generally used for over current & earth fault protection of distribution feeders, and for back up protection of generators, transformers,transmission lines etc.

Features

  • Micro-Controller based numerical design.
  • IEC-60255-149 Standard.
  • Very High Operating Accuracy.
  • Design Flexibility for easy selection of operating characteristics.
  • Both 1A & 5A CT inputs in a relay.
  • Universal wide range power supply unit.
  • Fault indication via LEDs.
  • Communication Protocol 61850 for SCADA (RS485)and RS232 serial port for Program loading.
  • Password Protected.

Applications

  • The relay VN500R is mainly aligned for protection, control, measurement and supervision of asynchronous motors and the associated drivers.
  • Typically the motor protection relay is used with circuit breaker, contactor controlled HV & LV motors in a variety of drives, such as pumps, conveyors, fans and Crushers etc.,
  • The relay shall be of a numerical communicating type offering extensive protection, control and measuring functions in one enclosed unit. The protection relay design and data modeling shall be based on the IEC 60255-149 standard.

Features

  • Micro Controller Based Economic design.
  • Very High Operating Accuracy.
  • Design Flexibility for easy operating characteristics.
  • Monitors circuit breaker 52a & 52b auxiliary switches in open and close position.
  • >300ms time delay to avoid nuisance alarms during normal CB operation.
  • De-mountable terminal blocks complete with locking screws.
  • Universal auxiliary voltage (20 - 250 VAC/DC) with Low Burden.
  • Wide range of Supervision Voltage operates in both ac & dc.
  • Seperate LED indications for Healthy & Unhealthy.
  • Compact robust construction and panel mounting case.
  • Cost Effective.

Applications

  • Pre and Post closing supervision of Circuit Breaker trip circuit.
  • Supervision of tripping relay operating coil.

Features

  • Micro-Controller based economical design.
  • Very High Speed Operation.
  • Detects 1, 2 and 3 phase fuse failure in <8msecs.
  • Universal auxiliary voltage (20 - 250 VAC/DC) with Low Burden.
  • Less Burden on PT.
  • Separate LED indications for all Three phases.
  • Compact robust construction.
  • Cost Effective.

Applications

  • The VS97RS3 is a three phase fuse failure Relay, used for monitoring the healthiness of the PT secondary circuit fuses continuously.
  • If the supply is interrupted or unbalanced due to failure of fuses in the PT circuits, the relay will trip and indicates that in which phase the fuse has failed.

Features

  • Micro-Controller based economical design.
  • Very High Speed Operation.
  • Time settings easily selected by means of Selected switches.
  • Output relay freely configurable for desired relay operation such us Pick-Up/Drop-Off.
  • Both AC & DC auxiliary supply available.
  • Compact robust construction.

Applications

  • The relay VS62R is a control relay with a time delay built in. The relay intended to be used for protection and control an event based on time in electrical power stations and sub stations.

Features

  • Electro-mechanical design.
  • Very High Operating Accuracy.
  • Design Flexibility for easy operating characteristics.
  • Self or Hand reset Contacts.
  • Simple and Reliable Construction.
  • Compact panel mounting case.

Applications

  • Control, alarm, indication and other Auxiliary duties in AC or DC systems.
  • Contact Multiplication.

Features

  • Electro-mechanical design.
  • Very High Operating Accuracy.
  • Design Flexibility for easy operating characteristics.
  • Hand reset Contacts with mechanical flag.
  • Simple and Reliable Construction.
  • Compact panel mounting case.

Applications

  • High speed tripping duties where a number of simultaneous switching operations are required.

Service

We provide a complete solution for troubleshooting for all sort of NON PROGRAMABLE Numerical and Electromechanical relays at any make. Some of the relay series are given below.

Types of Relays undertaking for Repair & Service

  • Over current Protection
  • Voltage and Frequency Protection
  • Circuit Breaker Failure
  • Distance Protection
  • Line Differential and Phase Comparison
  • Motor Protection
  • Transformer Protection and Control
  • Generation Protection

Repair & Service Process

  • General visual Inspection
  • Checks the device wiring connections
  • Checks the device is affected by moisturing
  • Checks damaged of components
  • Checks the SMPS section for make sure that the device is healthy or not.
  • Voltage measurement
  • Ratio Checks for CT
  • Checks CT Saturation
  • Short circuit measurement



Gallery


Clients

Contact Details
Mr.K.Rajendra Prasad    Technical Director

 Mob:+91-9600095599

044-43978000; Fax: 044-42867746

Prasad.kr@voltechgroup.com/relay@voltechgroup.com

  • Address
  • Voltech Manufacturing Company Ltd.,-Relay Division
  • No.132, 133 & 134, Sri Kumaran Nagar,
  • Kundrathur Main Road, Kovur,
  • Chennai - 600 122. (Tamilnadu)

Mr.S.Seetharaman    Senior Production Engineer

 Mob:+91-9600095939

044-43978000; Fax: 044-42867746

Production.relay@voltechgroup.com/relay@voltechgroup.com

  • Address
  • Voltech Manufacturing Company Ltd.,-Relay Division
  • No.132, 133 & 134, Sri Kumaran Nagar,
  • Kundrathur Main Road, Kovur,
  • Chennai - 600 122. (Tamilnadu)