Thyristor module MTT2-80-8 (80A 800V), housing MTD1

Transformer station for heating concrete: operating principle

PNSV heating wires are laid into the structure before concreting . Subsequently, when the station is turned on, the cables begin to heat up and thus heat the concrete solution. To prevent concrete freezing and loss of strength of the structure being erected, a concrete heating station can be used at temperatures below +5 degrees. In addition, concrete heating stations TSDZ-63, TSDZ-80, if necessary, can be used as a welding transformer.

Characteristics of concrete heating transformers TSDZ-63, TSDZ-80

We supply transformers for heating concrete TSDZ 63 and TSDZ 80 - direct deliveries from the manufacturer.

Transformer station for heating concrete TSDZ-63 /0.38U3

The three-phase transformer TSDZ-63 with forced air cooling is a mobile unit in a single-case design. TSDZ transformers are used in open areas for heating concrete and frozen soil at temperatures from -45 C to +20 C and relative air humidity of no more than 80% at +20 C. The TSDZ-63 transformer station has an automatic control unit and a switch for short-circuit protection short circuits and overloads. The concrete heating transformer TSDZ 63 has a protective casing connected to the active part. Not intended for use in conditions of shaking, vibration, or shock. Operating mode – long. Factory warranty.

Technical characteristics of TSDZ-63 transformers:

Mains supply voltage, V: 380
Number of phases: 3
Frequency, Hz: 50
Rated power, kVA: 63
No-load voltage levels on the LV side, V: 50;65;80;100
Current on the LV side at a voltage of 50/55 V, no more, A: 450
Current on the LV side at a voltage of 65 V, no more, A: 350
Current on the LV side at a voltage of 80/85 V, no more, A: 300
Current on the LV side at a voltage of 100 V, no more, A: 250
Overall dimensions of the transformer, mm: 1000x650x840
Macca welding transformer, kg: 300

Transformer station for heating concrete TSDZ-80 /0.38U3

The TSDZ-80 concrete heating station with forced air cooling has several voltage levels. This allows you to adjust the thermal power of the transformer to heat the concrete depending on the ambient temperature. The power part is made on the basis of a three-phase dry transformer. It has a control unit and a switch that protects against short circuits and overloads. The station is equipped with a protective casing. One station can heat approximately 30 m3 of concrete. Optimal operating conditions for the three-phase concrete heating transformer TSDZ-80 are at temperatures from -45 C to +20 C and relative air humidity of no more than 80% (at +20 C). concrete heating transformer station is not designed to operate under conditions of shaking, vibration, and shock. Operating mode – long. Factory warranty.

Technical characteristics of TSDZ-80 transformers:

Mains supply voltage, V: 380
Number of phases: 3
Frequency, Hz: 50
Rated power, kVA: 80
No-load voltage levels on the LV side, V: 55;65;85
Current on the LV side at a voltage of 50/55 V, no more, A: 600
Current on the LV side at a voltage of 65 V, no more, A: 500
Current on the LV side at a voltage of 80/85 V, no more, A: 400
Current on the LV side at a voltage of 100 V, no more, A -
Overall dimensions of the transformer, mm: 1040x700x1040
Macca welding transformer, kg: 380

You can buy transformer concrete heating stations TSDZ-63, TSDZ-80 in Minsk for cash or by bank transfer.

It is possible to deliver TSDZ heating transformers to a construction site in Minsk or the Minsk region.

Thyristor module MTT2-80-8

Thyristor modules MTT2-80-8 are semiconductor power modules that regulate and convert direct and alternating current up to 80 amperes with a frequency of up to 500 Hz in circuits with voltages up to 800 volts (class 8).

MTT2-80-8 modules are made in the MTD1 - base dimensions 20x92 mm, height - 30 mm, weight - 0.2 kg.

The power terminals are located on the top of the housing and are designated by numbers 1, 2, 3 . Control pins - designated K1, G1, K2, G2 . The connection is made using control wires.

MTT power modules are an assembly of two semiconductor thyristors (thyristor-thyristor type), located in one monolithic housing and connected according to a specific circuit. To remove heat, the modules are assembled with coolers (radiators) using heat-conducting paste KPT-8.

Detailed technical characteristics of thyristor modules MTT2-80-8, marking explanation, drawing, diagram, pinout, overall and connection dimensions are indicated below.

The final price for thyristor power modules MTT2-80-8 depends on the class, quantity, delivery time, manufacturer, country of origin and form of payment.

Dimensions of thyristor module MTT2-80-8, housing MTD1

MTT thyristor module connection diagram

1, 2, 3 – main power terminals. K1, G1, K2, G2 (4, 5, 6, 7) – control terminals. A1, A2 – areas for monitoring the body temperature.

Explanation of markings (designations) of thyristor modules MTT2-80-8:

MTT

–

UHL2

MTT	–	T- thyristor module - T- thyristor.
2	–	Modification of design.
80	–	Permissible average current in the open state IT(AV), A.
8	–	Repetitive impulse reverse voltage class URRM / 100.
UHL2	–	Climatic modification and placement category.

Control wire for MTT thyristor modules

Photo	Series	Price
	MTT control wire red	$0.04
	MTT control wire white	$0.04
	MTT control wire left key	$0.12
	MTT control wire right key	$0.12

Recommendations for installation and operation of power modules

To operate, the power module is installed on a cooler (radiator), which provides optimal operation at a current not higher than the average current in the open state.

The temperature of the metal base of the module at maximum current should not exceed 85°C.

The MTT2-80-8 module is fastened with two M6×20 screws using flat and spring washers.

During installation, you should pay attention to the tightness of the mating surfaces.

It is recommended to apply heat-conducting paste KPT-8 to the contact surfaces of the module and cooler, which improves heat removal and increases the service life of the module.

the power terminals of the module with electrically conductive copper paste to reduce the transient electrical resistance.

During operation, power modules should be periodically cleaned of dust and dirt.

It is strictly forbidden to touch live power modules.

Application of MTT power thyristor modules

MTT modules are used in various power plants and equipment: AC regulators, power regulators, converters, rectifiers, inverters, devices for starting and controlling the rotation speed of AC and DC electric motors, for monitoring the temperature of furnaces or chemical processes, in uninterruptible power supplies.

Depending on the type of device, thyristor modules can be used in starting and speed control systems for urban electric rolling stock, welding equipment, for completing converter devices for DC power lines, for operation in contactless switching and control equipment and other devices.

Comments on products, reviews:

Boris 08/26/2019 at 10:36

Good afternoon We use your MTT160-12 power module. I would like to clarify the recommended value of the thyristor control current for phase-pulse control. Now we give -0.5 A. On the breadboard without a real load, everything works, but what will it look like at high currents in the load? You say nothing about this parameter!

Answer

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Maxim 08/27/2019 at 16:25

According to the technical documentation, the unlocking direct control current of MTT modules at voltage Vd=12V: at Tj=25°C – Igt = 200mA; at Tj=125°C – Igt = 150mA. We also recommend relying on the parameters and graphs in the technical documentation: https://asenergi.com/pdf/modul/mtt/mtt-160.pdf

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Dmitry 12/05/2019 at 04:39

Good afternoon! Also interested in the modules are cooling radiators

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Alexander 05.12.2019 at 10:10

Good afternoon. Coolers for diodes, thyristors at the link: https://asenergi.com/catalog/ohladiteli.html

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Post by Sergey Viktorovich 01/23/2020 at 05:48

Good afternoon. Please tell me the recommended parameters of the snubber (RC) circuit for the MTT-630-16 thyristor module.

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Page: Thyristor module MTT-630-16

Alexander 01/23/2020 at 15:54

Good afternoon. Datasheet for MTT-630-16 modules at the link: https://asenergi.com/pdf/modul/mtt/mtt-630-16.pdf

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Page: Thyristor module MTT-630-16

Vladimir 01/29/2020 at 10:52

Is it possible to use the MTT-250-12 module as an analogue to the VSKT 250-16 module

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Alexander 01/29/2020 at 1:35 pm

Yes, in principle you can use the MTT-250-12 module as an analogue of the VSKT 250-16 module.

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Andrey 04/09/2020 at 11:33

Good afternoon. Is it possible to use the MTT 2-80-8 module instead of the MTT 2-80-9 module?

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Alexander 04/09/2020 at 11:49

Good afternoon. They have different voltage classes, class 8 can be replaced with class 9, you will have a voltage reserve. If you replace it the other way around, then you need to consider whether it is permissible to lower the voltage from 900V to 800V for the module.

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Adnan Alaudievich Dakhaev 06/19/2020 at 08:57

To protect contacts, thyristors are needed that can withstand currents of up to 1000 A for 0.1 seconds. How to choose?

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Alexander 06/19/2020 at 15:39

We don't do selection. Detailed technical information about the products is presented on the website. You can select the products you are interested in, indicating the series and quantity, and send a request by email.

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