Dynamometer type wattmeter |
Induction type wattmeter |
| i. Working torque comparatively weaker. | i. Working torque comparatively stronger. |
| ii. Power consumption is low. | ii. Power consumption higher. |
| iii. Scale in uniform. | iii. Scale in uniform and long. |
| iv. Can be used both AC and DC system. | iv. Can be used only AC system. |
