Higher And Technical Education Department Tender

Transmission Line Simulation Unit Transmission Line Simulation Unit is used to simulate a power transmission line and study the protection schemes under various fault conditions & it should be in a single unit with multiple sections. It is provided with various R-L-C loads for transmission line. The transmission line can be loaded upto 75% of load regulation & 85° of lag power factor. Line parameter can also be varied through switches. Protection relays like impedance relay and over current + earth fault relay is also provided. Fault simulation switch for artificial injection of faults and necessary CT's and PT's are also provided. Proper fuses and protection devices are fit inside the panel for the safer operation. Specification: Transmission line type: Artificial single-phase transmission line model No. of π sections: 5 (80kms each) Power Supply: 1ph 230V AC, 50Hz , Current Rating: 4A , Short circuit capacity: 10A Generating Station End - Power Transformer Input Voltage: 1ph 230V, 50Hz Output voltage: 55 / 110 / 220 volts Current rating: 4A with tap changing switch for voltage regulation Receiving Station End - Transformer Input voltage: 1Ph 55 / 110 / 220V, 50Hz Output voltage: 1Ph 230V, 50Hz Impedance Relay: Single Element Any Internationally reputed make Over current + Earth fault: Any Internationally reputed make Power Analyzer: DSP based Any reputed make Ammeter: 3½ digit Any reputed make Voltmeter: 3½ digit Any reputed make Time Interval Meter: .0001 to 9999sec Any reputed make Operating Temperature: -5°C ........................ +45°C Storage Temperature: -20°C ...................... +60°C Using the equipment, the Study of Ferranti effect, Study of ABCD Parameters, Transmission line efficiency and calculation of losses, Voltage regulation of transmission line, Study of load flow, Study of line compensation, Study of load compensation, Study of Impedance relay characteristics, Study of over current and earth fault in transmission line and Study of voltage improvement of reactive power control using tap changing transformer can be conducted. Pamphlet of the equipment must be attached.

Transformer Protection Simulation Unit: Transformer Protection Simulation Unit is designed to study the various protection schemes of three phase transformer with Merz Price Protection. Necessary protection relays like % Differential Relay, Over Current Relay with high-set feature, Over/under voltage relay, Temperature Relay, etc., are provided. Power Analyzer, voltmeter, ammeter is used for power, voltage and current measurement. A 3 phase lamp or resistive load with on/off switch is also provided. Necessary fuses and protection devices are built in the panel. Specifications: Transformer : 3kVA, 415/415V Type : Open ended, star-star Power Supply : 3ph 415V AC, 50Hz % Differential Relay : Any Internationally reputed make Over Current+Earth Fault Relay : Any Internationally reputed make Over / Under Voltage Relay : Any Internationally reputed make Temperature Relay : Any Internationally reputed make Load Resistive Load Power Analyzer : DSP based Any reputed make with RS 485 communication port 0.5 class, 4 quadrant measurement Ammeter 3½ digit Any reputed make Voltmeter 3½ digit Any reputed make Time Interval Meter : .0001 to 9999sec Any reputed make Operating Temperature : -5°C ........................ +45°C Storage Temperature : -20°C ...................... +60°C Necessary software should be provided with the power analyser for communication. Using the equipment Study of differential protection, Study of over current protection, Study of High Set function, Study of over voltage protection, Study of under voltage protection, Study of over temperature protection, Study of earth fault protection, Study of line faults and Study of internal faults in transformer can be conducted. Pamphlet must be attached.

Bucholtz Relay Trainer Kit Bucholtz Relay Trainer Kit which is mainly used to study and test the operation of Bucholtz Relay. It mainly consists of Bucholtz Relay and the Oil test setup. Bucholtz Relay used is a mechanical type oil and gas operated relay. The relay has one NO contact for Alarm and one NC contact for Trip indication. • Easy operation • NO contact for alarm • NC contact for trip indication • Conservator to fill oil to the relay • Reservoir to store the oil • Foot pump to create bubbles in the relay Standard Delivery Includes Bucholtz Relay trainer kit, Foot pump, Power Supply Cable, Test Certificate, Instruction Manual Pamphlet of the equipment must be attached.