I13

Repertoire Of Transformers

  • Searl: SL20x25
  • Power: 58 W
  • Primary wet point: 0, 53/0, 32 A
  • Mass: 1,45 kg
Findings of flowTension, BPermissible flow, A7-86, 30, 869-102, 16

Tab.1. Electrical Transformator parameters TN44-127/220-50 and TN44-220-50

Transformators of TN44 by 220 V are issued from 1979 (referred as TN44-220-50They have one primary mooring and the same numbering of conclusions as those of transformers at 127/220 B.

Electrical parameters, dimensions and installation dimensions, as well as the mass of TH44 transformers by 220 V, as in the corresponding TH44 transformers by 127/220 B.

The stress on primary recharges of TN44 transformers at 127/220 B is as follows:

  • between conclusions 1 and 1a, 4 and 4a to 3, 2 B;
  • between conclusions 1 and 1B, 4 and 4B-6, 3B;
  • between conclusions 1 and 2, 4 and 5 - 110 B;
  • between conclusions 1 and 3, 4 and 6 - 127 B.

When using TN44-127/220 transformers by 127 V, it is necessary to:

  • Connect conclusions 1 and 4, as well as 3 and 6;
  • Pressure 127 V to conclusions 1 and 3.

When using TN44-127/220 transformers by 220 V, it is necessary to:

  • connect conclusions 2 and 4;
  • Give the voltage 220 V to conclusions 1 and 5.
Электрическая принципиальная схема накального трансформатора ТН44Figure 1. Electrical schema of the NC44-127/220-50 nacal transformerFigure 2. Electrical schema of the TN44-220-50 nacal transformer

In TN44 transformers, a possible parallel interconnection of secondary movables to increase their load capacity.

In order to obtain the output voltages greater than 6, 3 V, secondary pumps may be connected by the analyzer according to inclusion. When a flow-through is activated in series according to the switching of the flow-through is not more than the minimum allowed.

Figure 3. Nacal transformer TN44-127/220-50 and TN44-220-50

Literature

Akimov N.N., Vashtakov E.P., Prohorenko V.A., Hodorenok U.P. Resistors, capacitors, transformers, throttles, REA switching devices: Handbook. - Mr.: Belarus, 1994