notice inviting e-tender for supply, complete installation & commissioning of devices, equipments, instrument, machineries, tools etc. for electrical engineering, mechanical engineering and science & humanities laboratories and workshops at bundwan polytechnic. , kit for measurement of 3 phase reactive power with single watt meter , kit for two watt-meters for measuring active power of three-phase balanced load. , kit for wheatstone bridge for measurement of medium resistance. , earth tester , kit for measurement ofunknown capacitance using schering bridge. , kit for measurement of unknown inductance using anderson bridge , tri-vector meter for measuring kw, kvar and kva of a power line. , digital storage oscilloscope ( dso ) with probe , solar cell characteristics apparatus , cut section model of water turbine , kit for measuring solar radiation using pyranometer & plotting of radiation vs time characteristics , panel for measurement of voltage, current, power & power factor in single phase circuit , digital lcr q meter, for laboratory , digital p n junction semi conductor diode characteristics apparatus , analog op - amp as differentiator & integrator trainer, for laboratory, model , kit for analog basic logic gates using ttl ic, for laboratory , hand driven analog insulation tester should have warranty of 1 year , zener diode characteristics curve plot , observation the output voltage using ics , realization of half adder, half subtractor. , realization of full adder full subtracton , verification of the function of sr, d, jk and t flip-flops. , binary asynchronous or synchronous counter. , full-wave rectifier circuit with filters and without filters. , operation of a stepper motor using 8051 , traffic light control using 8051 , measurement of ac voltage, current, frequency and phase angle , mccb, elcb, rccb , kit for percentage differential protection of transformer using transformer differential relay , static distance protection relay using relay testing kit. , kit for operation of single phase preventer by creating single phasing fault , test the proper functioning of power electronic switches – scr, igbt, scs and triac , test the proper functioning of diac to determine the break over voltage. , kit to determine the latching current and holding current using v-i characteristics of scr , kit to test the variation of r in r triggering circuit, variation of c in rc triggering circuit, variation of r, c in ujt triggering circuits on firing angle of scr. , determine the firing angle using diac and triac phase-controlled circuit on output power under different loads such as lamp, motor or heater. , perform speed control of dc separately excited motor using scr. , dynamic braking of three phase squirrel cage induction motor using contactor control. , set up to control the speed of three phase squirrel cage induction motor using stator voltage control method. , set up to study the effect on speed of given d.c. series motor by varying armature voltage using step down chopper. , demostrate high power scr and heat sink , set up to make & test the control and power circuit for forward and reverse rotation of sq. cage induction motor using contactor circuit. , set up to make & test the control and power circuit for automatic star-delta starter operation of sq. cage induction motor using contactor control. , study samples of overhead conductors, underground cables and line supports , demonstrate various system faults by d.c. network analyzer. , demonstrate the improvement of p.f. using static condenser , kit for compare power consumption of different types of tl with electromagnetic ballast, electronic ballast and led lamps by direct measurements and estimate energy saving. , experiment to determine the reduction in power consumption in star mode operation of induction motor compared to delta mode at different load conditions. , experiment to estimate energy saving by improving power factor using estimate energy saving by improving power factor using pfc / apfc for an electrical load. , determination of reduction in power consumption by replacement of fans and regulators. , control circuit of twin fluorescent lamp , control circuit of led lamp. , light dimmer arrangement using the relevant dimmer type of transformer , illumination output of different lamps ( incandescent, fluorescent, cfl, led, hpsv, mh ) and calculate their luminous efficacy. , voltmeter, ammeter, wattmeter to determine active, reactive and apparent power consumed in givenr-l, r-c and r-l-c series circuit. draw phasor diagram. , variable frequency supply to create resonance in given series and parallel r-l-c circuit or by using variable inductor or variable capacitor , voltmeter, ammeter, wattmeter to determine current, p.f. , active, reactive and apparent power in r-l / r-c parallel a.c. circuit , voltmeter, ammeter, wattmeter, p.f meter to determine line and phase quantities of voltage and current for balanced three phase star and delta connected load and calculate active, reactive, and apparent power. draw phasor diagram. , starting and reversing of dc motor. , control the speed of dc shunt motor above & below rated speed & draw the speed characteristics. , determine equivalent circuit parameters of single-phase transformer by performing o.c. test and s.c. test. , determine the regulation & efficiency of single-phase transformer by direct loading method. , compute the efficiency of a single-phase transformer by back-to-back test. , perform parallel operation of two single phase transformers to determine the sharing of load current, apparent and real power , perform the direct load test on the three phase squirrel cage induction motor and plot the i ) efficiency versus output, ii ) power factor versus output, iii ) power factor versus motor current and iv ) torque – slip / speed characteristics efficiency versus output, v ) power factor versus output, vi ) power factor versus motor current and vii ) torque – slip / speed characteristics , conduct the no-load and blocked-rotor tests on given 3-phase squirrel cage induction motor and determine the equivalent circuit parameters , perform the direct loading test on the given three phase alternator and determine the regulation and efficiency , determine the regulation and efficiency of the given three phase alternator from oc and sc tests ( synchronous impedance method ) , control the speed and reverse the direction of the ac servo motor. , control the speed and reverse the direction of the dc servo motor , measure impedance voltage and load losses of three-phase transformer. , determine efficiency of d.c. machine by hopkinson’stest , determine breakdown strength of transformer oil , conduct the direct load test to determine the efficiency and speed regulation for different loads on the givensingle phase induction motor; plot the efficiency and speed regulation curves with respect to the output power. , measure no load power, losses, current of a single phase transformer upto 110% of rated voltage , pedestal fan ( high speed ) , cnc turning centre t-100 , cnc machining centre vertical milling , coefficient of friction tester for variable angle with weight , slip gauge set m 88 block , sine bar set , analog vernier caliper ( mitutoyo ) , universal testing machine ( computerized, 600kn ) , rockwell & brinell combined hardness testing machine , charpy & izod impact testing machine ( mechanical type ) , , magnetic particle testing equipment ( mpi ) , dye penetration testing kit set , pneumatic circuit trainer kit , actual cut section model of oil pump ( internal gear ) , actual cut section model of oil pump ( external gear type ) , actual cut section model of vaccum pump ( vane type ) , pressure relief valve , non return valve , actual cut section model of two stoke ic engine ( c.i ) , cut section model of shell & tube type, plate type heat exchanger , cut section model of rotary air compressor , thermal conductivity apparatus , bourden tube pressure gauge , cut section model of cochran boiler for demostration , cut section model of babcok & wilcoxboiler for demostration , electric bench grinding machine , end milling cutter 10mm , face milling cutter with tool holder , side milling cutter , t slot milling cutter , drill vice , counter sinking drill bit , double fluted twist drill bit , argon gas cylinder with regulator for tig welding , pedestal fan ( high speed ) , ohms law apparatus , p.o. box , kirchhoffs law apparatus , pn junction diode characteristics apparatus , conversion of galvanometer into a voltmeter & ammeter apparatus , screw gauge , vernier callipers , friction board apparatus , spring constant apparatus , apparatus to determine and verify the time period of oscillation of a cantilever , moment of inertia of flywheel apparatus , resistance box , apparatus to verify inverse square law of radiations using a photo-electric cell , apparatus to study the dependence of capacitance of a parallel plate capacitor on various factors and determinethe permittivity of air at a place , apparatus to determine the soefficient of linear expansion of a rod ( pullingers apparatus ) , castor oil ( in liters ) , kmno4 , k2cr2o7 , koh , c2h5oh , litmus paper red & blue , conductivity meter with electrode , red-wood viscometer , daniel cell , abels apparatus for flash & fire point of oils determination , ph meter , carrom board , table tennis board , badminton net , cricket bat , badminton racket , badminton shuttle , tennis ball , volley ball , volley ball net , football , wicket , yoga mat , chess board