ТОП, ТШП transformers
from 5 to 15 kV
Current transformers are intended for transmission of measuring signals to measuring devices and are used in electric energy measuring and counting circuits of a.c. installations with 50 Hz frequency and up to 0,66 kV (inclusive) rated voltage.
Исполнение трансформаторов по условиям установки на месте работы – встраиваемые, допускают установку в пространстве в любом положении
Трансформаторы проходят поверку представителями Госстандарта
Полный цикл испытаний внутри производства
ТОП-0.66 and ТШП-0.66 current transformers are intended for transmission of measuring signals to measurement devices and are applied in electricity metering and counting circuits of a.c. installations of 50 Hz frequency and up to 0.66 kV (inclusive) rated voltage. Transformers comply with the requirements of GOST 7746-2001 standard. Climatic version – CT as in accordance with . Transformers are resistant to externally induced mechanical stresses as for M2 mechanical group in accordance with GOST 30631-99 and are rated for installation at the altitude of not more than 1000 m above sea level. As to installation conditions on worksite, the transformers are incorporated ones and they allow to be installed in whatever attitude position. Insulation thermal-endurance class – E as to GOST 8865-93. Magnetic cores of the 0.5S; 0.2 and 0.2S accuracy class current transformers for 10…400 A primary currents are of two designs: 1 – made of electric steel; 2 – composite type – made of electric steel and nanocrystalline alloy. Magnetiс cores nd of 0.2 and 0.2S accuracy class are of the 2 design – multiple-unit of electric steel and nanocrystalline alloy. Index of magnetic core design variant is included into the transformer designation. Window type current transformers ТШП-0.66 for 400…4000 A primary currents are of two designs depending on window size: -I – 23×103 mm (current transformers for 800…2000 A primary currents); -II – 38×81 mm (current transformers for 400…1000 A primary currents); -III – 60×131 mm (current transformers for 1000…4000 A primary currents). Magnetic cores of transformers are made of electric steel. The window design variant number also is a part of identification code of current transformer. Secondary winding contact terminals are covered with a transparent plastic cap, which, if necessary, can be sealed up. Transformers are subject to inspection by the Public Standards Body representatives. ТОП-0.66 and ТШП-0.66 current transformers design provides double contact terminals allowing to carry out control checks at facilities without load-off and, for 0.5S; 0.2 and 0.2S accuracy class – a sealed-up contact terminal for connection to a counter coil, which prevents electricity stealing. Structural parts of the transformers cases are made of hardly ignitable plastic. As to protection against electric-shock hazard the transformers belong to 0 class in accordance with GOST 12.2.007.0-75 and have IP00 protection degree in accordance with GOST 14254-96.