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Technical characteristics the Transformer for warming up of KTPTO 80 concrete Appointment the Transformer substation of KTPTO is designed and intended for heating of concrete at the time of filling and hardening in a cold season. It can be used also for warming up of soil and as the power supply for other power consumers (lighting, the manual tool and the equipment eating from a network of 380 volts and current to 10 amperes). Design features the Basic element of substation of KTPTO-80 is TMOB-80/0,38 - the trekhobmotochny three-phase transformer with natural cooling intended for transformation of tension as a part of devices of heat treatment of soil and concrete and food of electric equipment at temperatures from - 45 °C to +10 °C. Nominal frequency of operation of the transformer makes 50 Hz. The production technology In transformer substations "Arctic" is used by KTPTO-80.0, KTPTO-80.2 the PTRL PBV rack switch with motionless contacts along a straight line and with a clamp of provision of inclusion. The switch is picked up with a considerable stock for currents that ensures reliable functioning of the switch and TMTO transformer. In substation of KTPTO the scheme of winding and connection excluding failure of the transformer and substation as a result of a nedovklyucheniye and switching under loading is applied. The tank of the transformer is made of steel 2,5 mm thick on each side, 3-4 mm - a bottom and a cover of the transformer. The tank is supplied with the stiffening ribs serving as well as additional surfaces of cooling. Each tank is checked for tightness and painted by powder paint. The active part fastens to a transformer cover that gives bigger convenience in control, smaller dimensions of all design, and also big rigidity. The substation of KTPTO-80 at the request of the customer can be executed with a removable transport sled or with the adjusting platform instead of a sled. As the cooling oil transformer oil of group of companies is used. Made of the MBS 98-1 maslobenzostoyky laced rubber, with a temperature interval of working capacity from - 60 to +100 C °, consolidations provide reliable protection against oil leakages. TMTO is supplied with the safety valve (the valve of dumping of excessive pressure) and an oil indicator. For improvement of operational characteristics and increase in reliability at assembly of station are used: the aluminum tires 6х60 which are picked up with a considerable stock for currents; the isolation of conclusions made of special materials of production Germany; the surface of brass hairpins prepared in a special way for improvement of electric contact and reduction of transitional resistance. In contacts of conclusions special dish-shaped washers which do not allow connection to become loose at the expense of cycles heating/cooling (expansion/compression) are applied. Windings are executed by obmotochny wires of APB with isolation from 0,55 mm and APSD wires. Advantages of KTPTO-80 · High resistance to overloads · Protection against an overheat of assembly distributing thanks to thick tires and wires with section from 16 mm2 · 5 steps of tension for providing the best conditions of warming up · Threefold protection against switchings of degrees energized · Several degrees of protection against an overload, including by means of temperature sensors · Vacuum impregnation of coils a qualitative impregnating varnish in several layers with drying in a special drying chamber · Strong thick aluminum contacts · The sensor of temperature of concrete mix · The new reliable switch of loading · Powder tokoneprovodyashchy coloring of the case Quality control On all transformer substations of KTPTO-80 for warming up of concrete are available certificates of conformity of GOST Russian Federation and the Declaration on compliance. Quality control at plant of the transformer equipment consists of two stages. At the first stage entrance quality control of materials and accessories is exercised. The second stage are the acceptance tests including: · measurement of resistance of windings; · measurement of coefficient of transformation measurement and control of group of connection of windings; · voltage measurement of short circuit; · measurement of losses at loading; · measurement of losses of current of idling; · tests of dielectric durability of isolation; · tests by the induced tension; · measurement of partial categories; · test for resistance to storm pulse tension; · test for heating; · test for short circuit; · measurement of noise level. The quality monitoring system at manufacturer provides compliance to the turned-out transformer products to all declared characteristics.
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The oil heating transformer for KTPTO 80.0 concrete