TS(Z)HO dry power transformers up to 10 kV

Transformers three-phase, power, dry, with forced cooling of the TS(Z)HO series with windings made of conductors with "NOMEX" insulation of heat resistance class "H" (180 °С), two-winding, general purpose power from 250 to 1600 kV•A voltage up to 10 kV. They are used in various sectors of the national economy and industry, designed for the conversion of electrical energy in three-phase alternating current electrical networks with a frequency of 50 Hz. They are installed in industrial premises and public buildings, which are subject to increased requirements in terms of fire safety, explosion protection, environmental cleanliness and overloading capacity.
A characteristic feature of these transformers is the ability to increase the nominal power by up to 40%, without reducing the service life of the transformers.

Structure of conventional notation TSZNO-X /10 U3

T – three-phase transformer;

C – natural air cooling; C – protected execution;

H – winding with "NOMEX" insulation;

O – forced cooling;

X – nominal power, kVA;

UZ - climatic performance and accommodation category according to GOST 15150-69.

Specifications:

Power transformers of the TS(Z)NO type with capacity from 400 to 1600 kVA with nominal voltages of the primary winding (high voltage) up to 10 kV inclusive and the secondary winding (low voltage) - 0.4 kV. Basic schemes and groups of connection of windings (HV/LV) - D/un-11, U/un-0. Voltage regulation ±2x2.5%, in steps of 2.5% from the nominal voltage, switching without excitation (PBZ) using jumpers.

Operating conditions:

  - ambient temperature: from -25 °C to +40 °C;

  - relative air humidity - no more than 80% at a temperature of +25 °C;

  - installation height above sea level - up to 1000 m;

  - environment - non-explosive, not containing conductive dust;

  - for seismic impact - up to 9 points on the MSK-64 scale;

Construction of transformers:

Transformers consist of the following basic assembly units:

  - magnetic circuit;

  - windings placed on the magnetic circuit (active part);

  - taps (inputs, LV and HV buses);

  - protective casing.

  - cooling systems.

The magnet wire is made of high-quality electrical steel. Special cutting on the "GEORG" line and charging of the magnetic wire according to the "Step-Lap" scheme. Assembly of the magnetic circuit is carried out with the use of bandages, fastening pins and special glues that ensure low idle losses and noise level. To protect against corrosion, silicon-organic paints are used. LV windings are made of wire or tape with "NOMEX" insulation, the material of the windings is copper or aluminum. HV windings are made of copper wire with "NOMEX" insulation. Layer or coil windings depending on power and voltage. The windings are impregnated with organosilicon varnishes, both separately and completely with the active part. The windings are baked in electric furnaces according to special temperature programs, which guarantees resistance to short-circuit currents,

The cooling system works in automatic mode. The temperature of the windings is monitored using Pt100 temperature sensors and a thermal relay that controls the forced cooling system. Transformers are manufactured with the degree of protection IROO, IR21, IRZ1.

Transformers with casing, at the request of the customer, are manufactured in the following versions:

  - with LV/HV terminals on the transformer cover;

  - with LV/HV outputs on the narrow side of the transformer, left or right version. The protective cover of the transformer provides protection of the personnel from electric shock. Access for maintenance of the transformer and the active part is provided through removable panels on the wide side of the transformer.

At the request of the customer, the manufacturing plant designs and manufactures transformers of individual design or with parameters that differ from the standard ones.

Delivery completeness:

The delivery set includes: transformer, thermal relay TP-100 with temperature sensors Pt100, cooling system, movable rollers (rollers), technical documentation (passport, technical description and instructions for storage, installation and operation).

Overload capacity of transformers:

Transformers of the TS(Z)HO series ensure normal operation of the transformer at an overload of up to 40%. When the power is increased to 1.4S, the short-circuit losses double, the short-circuit voltage rises linearly to 40%.

They meet the standards of MEK-76, DSTU 3076-95 (GOST 30297-95), TU U3.49-00213440-059-2002, the production is certified according to ISO 9001: 2008

We deliver orders throughout Ukraine, except temporarily occupied territories and war zones. Delivery is carried out by transport and logistics companies chosen by you.

The terms of delivery of the order depend on the availability of goods in the warehouse. If at the time of placing the order, all the selected goods are available, then we will deliver the order within a few days, depending on the remoteness of your region. If the ordered product is not in stock, the maximum delivery time of the order may be several weeks. But we try to deliver orders to customers as quickly as possible, and 90% of customer orders are shipped within the first almost immediately. In the event that part of the goods from your order did not arrive at the warehouse after the specified period during the discussion with the manager, we will definitely inform you about it.

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