Power supply from a transformer ts 270. Power transformers for all occasions

Power transformers, TS-270, ST-270, were produced on split, O-shaped rod cores made of E-320 steel tape, with a section of 25x50 mm, and were intended for installation in color lamp or lamp-semiconductor TVs. For TCA-270 transformers, the core is slightly smaller and has a cross section of 25x45 mm.
Rated power of transformers - 270 watts. The connection of the primary winding of transformers to a 220 volt network is made to terminals 1 and 1 "and at the same time terminals 2 and 2" are closed to each other.
The primary winding of these latest transformers can only be made for 220 volts (pin 3 is missing).

It must be borne in mind that the winding data given here may differon your existing transformers,due to changes in specifications, manufacturers, the passage of time and other conditions, and they should be taken only as a basis. If you need to determine more accurately the number of turns of the windings of your existing transformer, wind an additional winding with a known number of turns, measure the voltage on it and calculate your transformer using the data obtained.

Picture 1.
Appearance of transformers TS-270, ST-270.

These transformers have several modifications, and all of them are interchangeable with each other. These are the types of transformers TS-270-1, TS-270-2, TSA-270-1, TSA-270-2, ST-270-1. Power transformers TSA differ from TS transformers in that their windings are made of aluminum wire. This was done to reduce the cost of mass production of transformers.
The diagram of transformers is shown in Figure 2, winding data and electrical characteristics of transformers are in Table 1.

Figure 2.
Scheme of transformers TS-270, ST-270.

Table 1. Winding data and electrical parameters of transformers such as TS-270, ST-270.

* - Voltages are given for half-windings (eg 5-15). The voltage of the entire winding 5-5 "is equal to 5-15 + 15"-5".

There may be options for transformers TS-270, the windings of which are 4-4 "and 9-9" are made separately.

- Winding 4-4" (4-14+14"-4) corresponds to the data above.

- Winding 9-9 "(9-19 + 19" -9 ") contains only 6 (3 + 3) turns, respectively, the total nominal voltage of the entire winding is 2.2 volts.

A big problem is the lack of power transformers for amateur radio designs. There are fewer and fewer TANs, TNs, TAs and CCIs on the market, and their quality leaves much to be desired.

It should also be noted that the quality of steel cores is still a lottery! I came across cores from TS180, which differ in the initial magnetic permeability by 5 (!!!) times.
The quality of cores OSM-0.4, OSM-0.63, OSM-1.0, produced before the 82nd year, is more or less stable. Various vehicles, TPs, etc. must first be measured.

Security forces on TSSh170.

The most common is iron TSSh170:
set USH30*60 mm, window 19*53 mm.
In the original, the primary has 2 turns per volt, which gives an induction of 1.25 T, which, to put it mildly, is a bit much for this iron.
Here are the options for a good and very good enforcer on this hardware.

1. Bmax = 0.8 T.

A) Primary - 675 turns with PEV-1 wire with a diameter of 0.63 (0.67) mm, 9 layers of 75 turns per layer. The active resistance of the primary is 8.2 ohms.
B) Screen made of copper foil.
C) Secondary - 270 + 270 + 270 + 270 turns with PEV-1 wire with a diameter of 0.51 (0.55) mm, 4 sections of 3 layers of 90 turns per layer. We connect the end of the first section with the beginning of the fourth, the end of the second with the beginning of the third. We get symmetrical half-windings with an active resistance of 12.3 +12.3 ohms.
At the same time on the secondary 175 + 175 volts. You can power the output stages on lamps ES36-, 6S19P, 6S41S, 6S33S.

Such a trans will be able to digest 140 watts in load, which is quite good.

2. Bmax = 0.7 T.

For special gourmets

A) Primary - 780 turns with PEV-1 wire with a diameter of 0.59 (0.64) mm, 10 layers of 78 turns.
The active resistance of the primary is 10.9 ohms.
B) Screen made of copper foil.
C) Secondary - the same as in the first example: 1080 turns with wire 0.51 (0.55) mm. Only in this case will it give out 290 volts of change, say, for a pair of 300V or 6P42S.

This trance is 120 watts, also tolerable.
I note that for Andrey Nikitin and some other do-it-yourselfers, I wound transformers with an induction of 0.6 T on this iron - an almost extremely low value of Bmax!

Siloviki on TS180-2, TS250-2M.

This iron is also very widespread.
Let's see what we can make with it.
PLR21*45 with window 28*86 mm.
Winding dimension - 11*80 mm.
We wind the silovik for GU72:

A) Primary - 1368 turns with PETV-2 wire with a diameter of 0.63 (0.69) mm, 6 layers of 114 turns on each coil. The active resistance of the primary is 12.4 ohms.
B) Screen made of copper foil.
C) Secondary - 3540 turns with PEV-1 wire with a diameter of 0.4 (0.45) mm, 10 layers of 177 turns on each coil. Active resistance 49 + 49 ohm. From the secondary we remove 275 + 275 volts of change. For GU72, GMI11, GM5B and similar lamps - that's it!

Such an silovik will pull 140 watts, i.e. you can connect a PAIR GU72, with a total current of about 250 mA. And all this at Bmax = 0.77 T!

Silovik on TSA270.

This iron, with a modest section PL25 * 45, has a giant window: 40 * 100 mm.
Those. you can wind more wire
To obtain an induction of 0.8 T, 1100 turns must be wound.
We wind:

A) Primary - 1104 turns with PEV-2 wire with a diameter of 0.95 (1.03) mm, 6 layers of 92 turns on each coil. The active resistance of the primary is 4.8 ohms.
B) Screen made of copper foil.
C) Secondary - 3120 turns with PEV-2 wire with a diameter of 0.67 (0.73) mm, 12 layers of 130 turns per layer. Active resistance - 18 + 18 ohms.
At the same time on the secondary 306 + 306 volts.

The resulting trance will easily digest 310 watts.

Silovik on TS270-1.

This trance has a larger piece of iron: PL25*50.
For the same Bmax turns, you need less - 990.

A) Primary - 984 turns with PEV-2 wire with a diameter of 1.08 (1.15) mm, each coil has 6 layers of 82 turns. The active resistance of the primary is 3.5 ohms.
B) Screen made of copper foil.
C) Secondary - 2600 turns with PEV-2 wire with a diameter of 0.67 (0.73) mm, 10 layers of 130 turns on each coil. The active resistance of the secondary is 15.6 + 15.6 ohms. AC voltage 285+285 volts.

This trance will endure 400 watts.

Silovik on OSM-0.4.

These security forces were originally designed for an outrageously high induction - 1.5 T.
Hence all their shortcomings.
With normal induction - 0.8 T - they are quite good.

A) Primary - 612 turns with PETV-2 wire with a diameter of 0.9 (0.96) mm, 9 layers of 68 turns per layer. The active resistance of the primary is 3.85 ohms.
B) Screen made of copper foil.
C) Secondary - 276 + 276 + 276 + 276 turns with PEV-2 wire with a diameter of 0.67 (0.725) mm.
Each section has three layers of 92 turns. The end of the first section is connected to the beginning of the fourth, the end of the second to the beginning of the third. We get two half-windings with an active resistance of 8 + 8 ohms. The alternating voltage on the secondary is 195 + 195 volts.

Such a trance will draw 350 watts (with a current density in the primary of 2.5 A / mm2, the power of all the above trances is indicated at 2A / mm2).

Siloviki on TS70, TS80, TS90, TS100.

All these so differently named transformers are based on iron PLM22 * 32 with a window of 22 * ​​60 mm. Winding dimension 9*54 mm.
Their iron, fortunately, is very good and stable in terms of parameters.
You can count them at Bmax = 1 T.

A) Primary - 1470 turns with PEV-2 wire with a diameter of 0.45 (0.51) mm, 7 layers of 105 turns on each coil. The active resistance of the primary is 21.8 ohms.
B) Screen made of thin copper foil.
C) Secondary - 2800 turns with PETV-2 wire with a diameter of 0.335 (0.385) mm, 10 layers of 140 turns on each coil. Active resistance 44 + 44 ohms.
The voltage on the secondary is 200 + 200 volts.

The power of such a trance is 90 watts at 2.5A / mm2 in the primary.

Silovik for Ш40*70 with a window 20*60 mm.

Winding dimension 17*56 mm.
Somehow I came across a whole scattering of these transformers with very good iron (E3412, apparently).
The window is small, but you can fit something there:

A) Primary - 413 turns with PEV-1 wire with a diameter of 0.88 (0.94) mm, 7 layers of 59 turns per layer. The active resistance of the primary is 3 ohms.
B) Screen made of copper foil.
C) Secondary - 770 turns with PEV-2 wire with a diameter of 0.67 (0.725) mm, 10 layers of 77 turns. The active resistance of the secondary is 11.8 ohms. The alternating voltage on it is 400 volts.

The power of such a trance is 335 watts.
Induction in iron - 0.85 T.

Silovik on standard iron ShL20 * 40 with a window of 20 * 52 mm.

Winding dimension - 17*47 mm.
These trances with the Transvitian iron also came to me suddenly and in large numbers. Iron - E330A - 0.35 (E3413A).
Therefore, I laid the induction of 1.1 T:

A) Primary - 1120 turns with PEV-1 wire with a diameter of 0.5 (0.55) mm, 14 layers of 80 turns per layer. The active resistance of the primary is 16 ohms.
B) Screen made of copper foil.
C) Secondary - 1952 turns of PETV-2 wire with a diameter of 0.335 (0.38) mm, consists of four sections of 4 layers (122 turns per layer), i.e. 488+488+488+488 turns.
Switching is the same as in the previous cases: the end of the first section is connected to the beginning of the fourth, the end of the second to the beginning of the third. We get 185 + 185 volts with an active resistance of half-windings of 40.6 + 40.6 ohms.

The power of this transformer is 108 W at a current density in the primary of 2.5 A / mm2.

Silovik on iron PL15 * 32 with a window of 26 * 82 mm.

This good 100-watt iron (E330A) was used in military devices. It was completed with very strong-looking (but fragile in reality ) black carbolite coils. Winding dimension 10.5*76 mm.
Here's what you can get from it:

A) Primary - 1876 turns with PEV-1 wire with a diameter of 0.51 (0.56) mm, each coil has 7 layers of 134 turns. The active resistance of the primary is 19.2 ohms.
B) Screen made of copper foil.
C) Secondary - 3024 turns with PEV-1 wire with a diameter of 0.4 (0.45) mm, on each coil there are 9 layers of 168 turns. The active resistance of the secondary is 32.3 + 32.3 ohms. Variable voltage - 170 + 170 volts.

The power of such a transformer is 110 W, Bmax = 1.1 T.

Silovik on the iron of the surf.

This iron is PLM25*50 with a window of 42*68 mm.
The matter is aggravated by extremely stupid coils with a cheek height of only 11 mm, although 18 mm can be made. Therefore, we make new frames with a winding dimension of 18 * 64 mm.

A) Primary - 952 turns with PEV-1 wire with a diameter of 0.88 (0.94) mm, each coil has 7 layers of 68 turns per layer. The active resistance of the primary is 5.2 ohms.
B) Screen made of copper foil.
C) Secondary - 2400 turns with PEV-1 wire with a diameter of 0.57 (0.63) mm, 12 layers of 100 turns on each coil. The active resistance of the half-windings is 20 + 20 ohms, the alternating voltage is 275 + 275 volts.

The power of this transformer is 330 watts.
Bmax = 0.83 T
Just a PLEASANT trance

Finally - a variant on the good old hardware E43-0.35 with a large window.

Ш32*43 with a window 28*60 mm. Winding dimension - 25*56 mm.
To obtain an induction of 0.8 T, we need to wind 921 turns.
Let's see what happens:

A) Primary - 924 turns with PEV-2 wire with a diameter of 0.67 (0.725) mm, 12 layers of 77 turns per layer. The active resistance of the primary is 8.95 ohms.
B) Screen made of copper foil.
C) Secondary - 2592 turns with PEV-1 wire with a diameter of 0.45 (0.51) mm, 4 sections of 6 layers (108 turns per layer), i.e. 648+648+648+648 turns. Commutation: the end of the first section is connected to the beginning of the fourth, the end of the second to the beginning of the first. The active resistance of the half-windings is 36 + 36 ohms. Voltage - 300 + 300 volts of change.

These options will help you fabricate and design transformers with the required voltages on available hardware.
Good luck!