21225373.48 Under Voltage & Over Voltage Relay TrainingSystem is intended for advanced practical training in protective devices regarding transmission lines, cables and network sections in power systems lab. A Relay is an electrically operated switch use an electromagnet to operate a switching mechanism mechanically. Relays protect the power distribution equipment against continuing voltage sags that are detrimental to motors, ballasts, etc.21225373.48 provides theoretical and practical experience to students by controlling, monitoring and analyzing individual relay settings and tripping characteristics. This product provides detailed representation of power transmission system which helps the students to perform experiments with minimal supervision. It also includes built-in variable supply and fast response graphical LCD display which makes themeasurement system very precise.

Featuresl

• Alphanumeric 16 x 2 Big Font LCD for better visibility
•  Electromechanical relay to understand internal mechanism and its working
•  Inbuilt Single Phase Variac with isolation
•  Tripping function settings
•  Exclusive and attractive design
•  Diagrammatic representation of relay connection in transmission line
•  Designed by considering all the safety standards
•  Learning material CD
•  2 Year Warranty

Experiment

• To study the operating performance of Over Voltage
• Relay with different plug settings
• l To study the operating performance of Under Voltage
• Relay with different plug settings

Technical Specifications

Mains Supply : 230V ±10%, 50Hz

Single Phase Variac

Input : 230V

Output : 0-270V

Current : 0-5A

Over Voltage Relay

Normal Voltage : 110V AC, 50Hz

Voltage Setting :121V, 126.5V, 132V,

143V,137.5V, 148.5V, 154V

Contacts : 2 N/O, 1 N/C

Under Voltage Relay

Normal Voltage : 110V AC, 50Hz

Voltage Setting : 44V, 51.3V, 58.6V, 65.9V,

73.2V, 80.5V ,88V

Contacts : 1 N/O, 2 N/C

Dimensions (mm) : W 830 x D 350 x H 645

Weight : 48kg (approximate)