Dubuque, IA Free Moderated Classifieds Site > OLD ADS FROM PREVIOUS YEARS
> 2005
> April
> 16+16V 300VA toroid transformer cnc motor driver
16+16V 300VA toroid transformer cnc motor driver
Open Circuit Test (core loss test):
TEST CONDITION: Apply variable voltage to primary coil (115V terminals) from 115-180VAC at 60Hz. No load on secondary coils.
1. Primary V = 115VAC, Primary I = .02A or 2.3Watt core loss
2. Primary V = 140VAC, Primary I = .03A
3. Primary V = 160VAC, Primary I = .04A
4. Primary V = 180VAC, Primary I = .12A
Short Circuit Test (copper loss test):
TEST CONDITION: Apply variable voltage to primary coil (115V terminals) from 1-20VAC at 60Hz and short circuit on secondary coils. The test result is 8.56V and 2.74A or 23.5Watt which is the maximum rated copper loss
TEST CONDITION: Apply dielectric meter between primary coils and secondary coils; and increase voltage up to 3500VAC. No initiate any spark.
TEST CONDITION: Input 115VAC 60Hz to the primary coil; parallel 2 secondary coils, 5 ohm 250W resistors as dummy load and room temperature at 25 degree C. Temperature rises 5 degree C after an hour test at load test #5.
1. Primary I = 0.02A, Secondary V = 16.3VAC at 0.0A, Power = 0 Watt
2. Primary I = 0.49A, Secondary V = 16.1VAC at 3.22A, Power = 52 Watt
3. Primary I = 0.95A, Secondary V = 16.0VAC at 6.41A, Power = 103 Watt
4. Primary I = 1.85A, Secondary V = 15.4VAC at 12.34A, Power = 190 Watt
5. Primary I = 2.24A, Secondary V = 15.0VAC at 14.96A, Power = 224 Watt
Dimension – 5†Diameter x 2.5†High.
If you have more technical questions, please visit toroid-transformer.com or e-mail to ****@yahoo.com.
