The laminations are checked for Edge Burrs Width, Camber, Thickness, Stack Thickness, Wave Factor etc. which have to be in accordance with the specific least measurement done by various measuring devices. The acceptance norms for lamination on various parameters are as follows:
| Sr. No |
Type of Measurement |
Name of the Instrument |
LEAST COUNT. |
| 1 |
Watt Loss |
- Iron Loss Single sheetTester,
- Epstein Core Tester
|
Max. 0.02 watt |
| 2 |
Length |
- Tape Scale :4 mtr Length
- Ruler Scale: 3 mtr Length
|
|
| 3 |
Width |
Vernier Caliper 0-600 mm |
0.02mm |
| 4 |
Edge Burrs |
Digital External Micrometer: 0-0.25 mm |
1 micron |
| 5 |
Camber. |
Vernier Caliper 0-150mm |
0.02mm |
| 6 |
Thickness |
Digital External Micrometer, 0-0.25mm |
1 Micron |
| 7 |
Stack Thickness |
Pressure Clamp and Vernier Caliper:0-200 mm |
0.02 Mm |
| 8 |
Wave Factor |
Vernier Caliper 0-200 |
0.02mm |