Novel Instruments

Objectives:

To obtain the magnetization characteristic and therefore determine the critical field resistance and critical speed of the given dc shunt generator.

Specifications :

2HP Shunt machines mechanically coupled both are identical 220V 2HP 1500rpm.
3-4 point DC Starter for the above.
Suitable Loading rheostats.
Digital tachometer.
Suitable double tube rheostat.
Suitable single tube rheostat.
Suitable digital Voltmeters DC.
Suitable digital ammeters DC.
Rectifier Unit 0-240V DC 1.5KVA with power failure protection.

Objectives:

To obtain Load characteristics of DC compound generator.

Specifications

Power ratings available : 350W / 750W / 1KW /2 KW / 3KW/ 5KW.
Voltage Input: 220V DC.
Excitation : 220V DC.
Armature : 220V DC.
RPM: 1500 / 3000 RPM.
Single / Double shaft extension, SPDP, IP23, IC01, B3, Class-B, S1, Solid yoke.

Objectives:

To conduct load test on 3 phase squirrel cage induction motor

Specifications:

Power ratings available : 350W / 750W / 1KW /2 KW / 3KW/ 5KW.
Voltage Input: 440V AC 50hz.
RPM: 1440 / 2880 RPM.
Single / Double shaft extension, TEFC, IP44, IC01, B3, Class-B, S1, Casting body

Objectives:

Study of Running and Reversing, No-Load Test,Blocked Rotor Test and Load Test of a Single Phase Induction Motor.

Specifications :

Mains Supply : 230 V +/- 10%, 50 Hz
Induction Motor Type : Capacitor start
Phase : Single
Current type : AC
Rating : 1 HP
Voltage rating : 230 V +/- 10%
Meters Used
Voltmeter : 0-300 V
Ammeter : 0-10 A
Wattmeter : 1000 W
MCB : 10 A

Objectives:

To control the speed of a three phase Slip Ring Induction motor using rotor resistance control.

Specifications:

Power ratings available : 350W / 750W / 1KW /2 KW / 3KW/ 5KW
Voltage Input: 440V AC 50hz
RPM: 1440 / 2880 RPM
Single / Double shaft extension, TEFC, IP44, IC01, B3, Class-B, S1, Casting body

Objectives:

To synchronize a 3 phase alternator to the supply mains using Dark lamp method.
Plot the V curves and inverted V curves when synchronous machine is acting asgenerator and motor at no load and constant power.

Specifications:

Power ratings available : 350W / 750W / 1KW /2 KW / 3KW/ 5KW
Voltage Input: 440V AC 50hz & Additionally 110V DC for Rotor
RPM: 1440 / 2880 RPM
Single / Double shaft extension, SPDP, IP23, IC01, B3, Class-B, S1,Solid yoke

Objectives:

To predetermine the regulation of 3phase alternator by EMF (synchronousimpedance method) and MMF method using OC and SC characteristics.

Specifications:

Power ratings available : 350W / 750W / 1KW /2 KW / 3KW/ 5KW
Voltage output: 220/440V AC
Separate/Self Excitation : 220V DC
RPM: 1500 / 3000 RPM
Single / Double shaft extension, SPDP, IP23, IC01, B3, Class-B, S1, Solid yoke

Objectives:

Repulsion-type motors are divided into three distinct classifications: the repulsion motor; the repulsion start, induction run motor; & the repulsion-induction motor. Although these motors are similar in name, they differ in construction, operating characteristics, & industrial applications.

Specifications :

Power ratings available : 350W / 750W / 1KW / 1.5KW (Pl Specify)
Voltage Input: 230V AC 50hz
RPM: 1440 / 2880 RPM (Please specify RPM before placing order, In general for Educational purpose we are supplying 1440 RPM and for Industrial/Commercial Purpose 2880 RPM)
Single / Double shaft extension, TEFC, IP44, IC01, B3, Class-B, S1, Casting/Sheet metal body

Objectives:

To study the polarity ratio test on transformer. To study various connection on 3ph transformer. To Study Open circuit and Short circuit test. To perform Scott connection on transformer. To perform load test on 1Phase / 3Phase Transformer. To perform parallel operation test on 1Phase / 3Phase Transformer T To perform sumpner back to back test on 1ph transformer.

Specifications :

Power ratings available : 1KVA / 2KVA /5 KVA
Voltage Primary : 230V AC
Voltage Secondary : 115V AC with tappings
Enclosed in cabinet with terminations on Bakelite sheet with Banana terminals

Objectives:

Study and Verification of load Cha. Of d.c series generator.

Specifications :

Power ratings available : 350W / 750W / 1KW /2 KW / 3KW/ 5KW
Voltage Input: 220V DC
Armature : 220V DC
RPM: 1500 / 3000 RPM
Single / Double shaft extension, SPDP, IP23, IC01, B3, Class-B, S1,Solid yoke

Objectives:

Study and Verification of load Characterstics Of d.c shunt generator.

Specifications :

Power ratings available : 350W / 750W / 1KW /2 KW / 3KW/ 5KW
Voltage Input: 220V DC
Excitation : 220V DC
Armature : 220V DC
RPM: 1500 / 3000 RPM
Single / Double shaft extension, SPDP, IP23, IC01, B3, Class-B, S1, Solid Yoke

Objectives:

Study and Verification of load Characterstics Of d.c compound generator.

Specifications:

Power ratings available : 350W / 750W / 1KW /2 KW / 3KW/ 5KW
Voltage Input: 220V DC
Excitation : 220V DC
Armature : 220V DC
RPM: 1500 / 3000 RPM
Single / Double shaft extension, SPDP, IP23, IC01, B3, Class-B, S1, Solid yoke

Objectives:

To obtain speed control of DC shunt motor by. Varying armature voltage with field current constant. Varying field current with armature voltage.

Specifications :

Power ratings available : 350W / 750W / 1KW /2 KW / 3KW/ 5KW
Voltage Input: 220V DC
Excitation : 220V DC
Armature : 220V DC
RPM: 1500 / 3000 RPM
Single / Double shaft extension, SPDP, IP23, IC01, B3, Class-B, S1, Solid yoke

Objectives:

Study and Determine the losses of DC Machine and correspondingly calculate the efficiency of DC Machine by Swinburn's Test Method.

Specifications:

DC Input supply : Variable, 0-180/200 V Fixed, 180 - 200V
Type : DC Shunt
Rating : 1 HP
RPM : 1500 (no load)
Voltmeter (MC type) : 1 No.
Ammeter (MC type) : 1 No.

Objectives:

to conduct hopkinson�s test on the given pair of identical dc machines and obtains item performance characteristics

Specifications:

DC Input supply : Variable, 0-180/200 V Fixed, 180 - 200V
DC Machines Specification (2 Nos.)
Both the Machines are flexibly coupled and mounted on a M.S
Type : DC Shunt
Rating : 1 HP
RPM : 1500 (no load)
Insulation : Class 'B'
Voltmeter : 300 V
Ammeter (2 Nos.) : 1 A, 5 A