ELECTRICAL LAB 2

THEVENIN’S AND NORTON’S THEOREM APPARATUS

Technical specifications

Inbuilt fixed DC regulated power supply of 12 volt.

Voltmeter & ammeter are mounted on the front panel.

Resistive network is used in the circuit.

Circuit diagram is printed on highly insulated front panel .

Trainer helps to demonstrate the working principle & verification of Thevenin’s & Norton’s Theorem based on resistive circuit. Student can calculate & measure the value of current & voltage for different load circuits.

Calculation of power consumed by the circuit.

Facility for connecting external Power Supply.

Set of required number of patch cords.

Multi - colored test points are provided in the circuit to observe voltages at different points.

Housed in an elegant powder coated metal cabinet.

Strongly supported by a comprehensive instruction manual complete with theory and operating details.

LED indication for supply “ON” to work on 220V AC Mains.

PERMEABILITY APPARATUS -FALLING HEAD & CONSTANT HEAD

Technical Detail

Permeability in the range of 10-3 to 10-7 cm / sec

Maximum particle size of 10 mm.

Glass tubes of 6 mm, 10 mm

Dia 20 mm approx.

Metallic Mould 100 mm

Dia x 127.3 mm

Height, 1000 ml volume.

Extension Collar 100 mm dia x 60 mm

Height. Drainage Base Plate with a recess for Porous Stone and an Outlet Valve.

Metallic Clamping Ring Drainage Cap with recess for a Porous Stone and fitted with Inlet Valve and Air Release Valve.

Dummy Plate to serve as False Bottom during compaction.

Porous Stone for Drainage Base Plate.

Porous Stone for Drainage Cap Rubber Connection Tube 3m long,

Constant Head method made of steel, approx. 37.5 cm

REYNOLDS APPARATUS

TECHNICAL DETAIL

visualisation of laminar and turbulent flow in the Osborne Reynolds experiment

water as flowing medium and ink as contrast medium

vertical glass pipe section

water tank with glass beads to stabilise the flow

flow rate in the pipe section can be adjusted via a valve

flow rate determined by base module

water supply using base module or via laboratory supply

Water tank

capacity: 2200mL

Pipe section

length: 675mm

, inner: 10mm

Tank for ink

capacity: approx. 250Ml

Weight: approx. 16kg

The present set-up has a facility to interface the system with computer which enables to log the experimental data using computer. The educational software and data-logging package has been developed for unit. This software is capable to tabulate the sample readings according to the requirement of experiment under study and results obtained can be compared. The real time data acquisition can be done by interfacing the set-up with computer using software. Software allows the user to have

TORSION OF STEEL BEAM APPARATUS

Technical Detail

The bench mounted apparatus has a steel base with support at ends.

The supports can be fitted with knife edges or clamp plates.

A steel beam and two load hangers are supplied together with two dial gauges for measuring beam deflections and slopes.

This equipment is part of a ranged to both, demonstrate and experimentally confirm basic engineering principles.

Great care has been given to each item so as to provide wide experimental scope without unduly complicating or compromising the design. Each piece of apparatus is self-contained and compact.

Setting up time is minimal, and all measurements are made with the simplest possible instrumentation, so that the student involvement is purely with the engineering principles being taught.

DIGITAL PLANIMETER

Features

Measurement by 6-digit pulse count

This N-Series can measure the area by pulse count of 6-digits.

This method enables a larger cumulative measurement of an area (Up to 10m)

The maximum cumulative measurement value of 10m²

With the measurement by 6-digit pulse count, the Planimeter can measure a larger area by 100 times than ordinary Planimeter.

The conventional planimeter has a maximum cumulative area to measure only 0.1m.

If measurement value shows over 0.1m2 when measuring, the display is to be reset to O

This requires to register the numbers of how many times these re-settings occur.

Easy conversion function of the unit and scale Technical Data

Feature: Accuracy, Easy to use & compact size

Accuracy: +-0.2%

Application: Industrial

Measuring Range: 325mm vertical, 30m horizontal