tender for purchase of various items ( basic electrical engineering laboratory ) - equipments, instruments, and materials etc. 2 demonstration of cut-out sections of machines: dc machine, induction machine, synchronous machine and single phase induction machine. 3 calibration of ammeter and wattmeter 4 determination of steady state and transient response of r-l, r-c and r-l-c circuit to a step change in voltage. 5 determination of steady state response of r-l and r-c and r-l-c circuit and calculation of impedance and power factor. 6 ( a ) open circuit and short circuit test of a single-phase transformer ( b ) load test of the transformer and determination of efficiency and regulation 7 demonstration of three phase transformer connections. voltage and current relationship, phase shifts between the primary and secondary side. 8 measurement of power in a three phase unbalanced circuit by two wattmeter method. 9 determination of torque-speed characteristics of separately excited dc motor. 10 determination of torque speed characteristics and observation of direction reversal by change of phase sequence of connection of induction motor. 11 determination of operating characteristics of synchronous generator 12 demonstration of components of lt switchgear. 13 digital storage oscilloscope 14 contact type tachometer 15 non-contact type tachometer 16 multi-meter