46638 Over / Under Voltage Relay Trainer explores the fundamental concepts of AC electrical systems and protection relays. Learners will see why transformer protection is needed and how protective devices are used for protection in industrial, commercial, agricultural, and residential applications. 

Over / Under Voltage Relay includes a bench top-mount workstation, DOL Starter, Multifunction meters, Current and elapsed counter panel, Protective relay and much more! Learners will use these components to study topics such as DOL Starter Voltage measurement, transformer protection, loads voltage and current measurement and troubleshooting. This system uses industrial quality components for durability to stand up to frequent use and to help learners become better prepared for what they will encounter on the job.

Experiments  

1. To study the working of DOL starter
2. To study the working of variac
3. To study the working of under voltage protection relay in definite time mode 
4. To study the working of under voltage protection relay in inverse definite minimum time (IDMT) mode
5. To study the working of over voltage protection relay in definite time mode
6. To study the working of over voltage protection relay in inverse definite minimum time (IDMT) mode

Salient Features

Facilitates easy and safe wiring by students due to use of 4mm sturdy Shrouded banana patch cords and shrouded socket arrangements for high voltage circuits

Each panel is made of non-breakable tough acrylic plate and colorful screw-less overlays showing circuits diagrams & its connection tag numbers for easy understanding and connection

Numerous possibilities of testing of electrical circuits.

Provide Panels

1. Aluminum Trainer Rack
2. Input 3 Phase DOL Starter Panel
3. Multifunction Meter (Single & Three Phase AC)
4. Over Current & Elapsed Time measurement Panel
5. Over / Under Voltage Relay Panel
6. Protection Relay Panel
7. Three Phase Variac input 415V, Output 0-470V at 10Amp