3 PH TO 1 PH TRANSFORMER, 4.5 KVA, P/N 19307

Specifications:

  • 3 PH to 1 PH Transformer, 4.5 KVA, 60 Hz, P/N 19307
  • Primary: 480 VAC L-L, 10 Amps, Delta, 3 PH
  • Secondary (X1, X2): 240 VAC, 10 Amps, 1 PH
  • Secondary (X3, N): 120 VAC, 10 Amps, 1 PH
  • Copper winding construction
  • Primary and secondary copper bus bars are 1/8″ x 5/8″ with one hole
  • Open core and coil: 15″H x 15″W x 12″D

The photo of the 3ph to 1ph converter transformer is shown below:

 

 

The schematic diagram is shown below:

 

 

The test set up for Test 1 is shown below. Both secondary outputs are loaded.

 

 

The test results for Test 1 are shown below:

  • Primary voltage measured: 478 VAC, 481 VAC, 478 VAC
  • Primary line current measured: 5.1 Amps, 3.78 Amps, 3.8 Amps
  • Primary phase current measure: 2.44 Amps, 1.94 Amps, 2.52 Amps
  • Secondary (X1, X2) voltage measured: 236 VAC
  • Secondary (X1, X2) current measured: 9.07 Amps
  • Secondary (X3, N) Voltage measured: 119 VAC
  • Secondary (X3, N) current measured: 9.62 Amps

The test set up for Test 2 is shown below. Only (X1, X2) secondary output is loaded.

 

 

The test results for Test 2 is shown below:

  • Primary voltage measured: 481 VAC, 478 VAC, 479 VAC
  • Primary line current measured: 5.2 Amps, 2.6 Amps, 2.9 Amps
  • Primary phase current measure: 2.54 Amps, 0 Amps, 2.35 Amps
  • Secondary (X1, X2) voltage measured: 236 VAC
  • Secondary (X1, X2) current measured: 9.1 Amps
  • Secondary (X3, N) Voltage measured: 120 VAC
  • Secondary (X3, N) current measured: None

The test set up for Test 3 is shown below: Only (X3, N) secondary output is loaded.

 

 

The test results for Test 3 is shown below:

  • Primary voltage measured: 478 VAC, 478 VAC, 479 VAC
  • Primary line current measured: 0 Amps, 2.75 Amps, 2.25 Amps
  • Primary phase current measure: 0 Amps, 1.97 Amps, 0.4 Amps
  • Secondary (X1, X2) voltage measured: 241 VAC
  • Secondary (X1, X2) current measured: None
  • Secondary (X3, N) Voltage measured: 118 VAC
  • Secondary (X3, N) current measured: 9.6 Amps

To discuss your specific application, please call our phone number at (714) 624-4740, or send us an email at quote@lcmagnetics.com.