VOLTECH MANUFACTURING COMPANY LTD

Poonamale High Road, Chennai, Tamil Nadu

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.
• 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