Calibration of a single-phase energy meter by (i) direct loading method (ii) Comparing with a sub-standard meter (C.R.)

Order Code: 55809

55809 Experimental Set-Up has been designed specifically to find percentage error in a single phase energy meter. The set-up consists of two Energy meters, Wattmeter, Voltmeter, Ammeter, Variac, Digital stop clock and Variable load. The ...

SPECIFICATION

The set-up is complete in all respects and requires no other apparatus. Practical experience on this set up carries great educative value for Science and Engineering Students.

OBJECT

To find percentage error in a single phase energy meter by direct loading method
To find percentage error in a single phase energy meter by comparing with a sub-standard meter.

FEATURES

The complete Experimental Set-up consists of the followings :

Energy meter electronic single phase : Under test (Local)
Energy meter electronic single phase : Sub-standard meter (ISI Mark)
Moving Iron AC portable voltmeter / : In housed in bakelite case with knife edge pointer & anti parallax mirror scale of ammeter/ wattmeter 140mm length, spring controlled movement, having accuracy class 1.0.
- Voltmeter range 0–300 Volt
- Ammeter range 0–10 Amp.
- Dynamometer type Wattmeter single phase, multirange, current coil 5/10Amp., Potential coil 75/150/ 300 Volt.
VARIAC : Variable voltage transformer table/floor mounting with enclosure input 230V, output 0–270V at 8 Amp.
VARIABLE LOAD : Uses 18 heating rods of 50E to 70E 750 Watt each, based on cement asbestos sheet of size 15.75 x 23.75 inch, Output are on terminal with connecting series & parallel connections by switches, to obtain different loads 25 to 210 ohms app.
DIGITALSTOP CLOCK : With START/STOPoperation by means of toggle switch & RESET by a push Button switch. It has a range of 999.9 seconds with resolution of 0.1 seconds and accuracy of ±0.01% (Quartz controlled). Display is thorough 4 no’s of 12.5mm bright Seven Segment Displays and working voltage of the unit is 230V ±10% 50Hz.
Set of connecting wires. : Strongly supported by detailed Operating Instructions, giving details of Object, Theory, Design procedures, Report Suggestions and Book References.