230V to 1100/36V 1 phase control transformer on sales, features with 10kVA capacity, high quality terminal block, high temperature resistance, worked as control power supply for mechanical equipment and general electrical appliance. Primary and secondary voltages are customizable and but should note that primary voltage not exceeding 500V, secondary voltage not exceeding 240V.
||Single phase control transformer
||Enameled copper wire or enameled aluminum wire
|Primary Voltage (VAC)
||110, 120, 208, 220, 230, 240, 380, 400, 480, 110/220, 120/240, 240/480, 220/380/480V, 440/460/480V...(Customized)
|Secondary Voltage (VAC)
||6, 12, 24, 36, 48, 110/36, 120/24, 208/12, 220/48, 230/36, 240/120, 120/24/12, 110/36/24, 127/36/6, 208/48/36/24...(Customized)
||50 / 60Hz
||F / H
|Withstand Voltage Test
||Primary to secondary 2.5KV/min
|Primary to safety ground 2.5KV/min
|Secondary to safety ground 1.5KV/min
||Primary to secondary 2500V>100 megohm
|Primary to safety ground 2500V>100 megohm
|Secondary to safety ground 1500V>100 megohm
|Induction Withstand Voltage Test
||Natural or air cooling
|Air Carrying Current
||-25℃~40℃ (40℃, 93% RH, 56 days)
||-25℃~100℃ (40℃, 93% RH, 56 days)
||Overall size: 290*240*330mm, Hold distance for installation: 150*180mm, Installation hold: 20*10mm
Schematic diagram illustration
Control transformer dimension
|Overall size (mm)
||Hole distance for installation (mm)
(mm) K x J
||20 x 10
There are two methods to control transformer drying: One is induction heating method, the other is hot air drying method.
1. Induction heating method
This method is to place the body in the oil tank, apply power frequency current to the outer winding coil, and use the heat of eddy current loss in the oil tank wall to dry. At this time, the temperature of the box wall shall not exceed 115℃ ~ 120 ℃, and the temperature of the body shall not exceed 90℃ ~ 95 ℃. For the convenience of winding the coil, the number of turns of the coil shall be as small as possible or the current shall be as small as possible. Generally, the current shall be 150A, and the conductor can use 35-50mm conductor. The oil tank wall can be padded with several asbestos strips, and the wires are wound on the asbestos strips.
2. Hot air drying method
This method is to put the body in the drying room and dry it with hot air. The temperature of hot air at the inlet shall gradually rise, and the maximum temperature shall not exceed 95 ℃. A filter shall be installed at the inlet of hot air to prevent sparks and dust from entering people. Do not blow hot air directly to the body. Try to blow it evenly from the bottom of the body to all directions, so that the moisture will be released from the vent hole of the box cover.