Voltage transformers cast type ZNOL, ZNOLP, 6-10kV
Voltage transformers ZNOL, ZNOLP type are single-phase, cast, three-winding, intended for the needs of the power industry. Transformers are installed in complete switchgear and conductors and are used to transmit the measurement information signal to measurement, protection, automation, alarm and control devices in 50 Hz AC electrical circuits. Transformers ZNOL, ZNOLP type operate for a long time at increased voltage (more than 3Unom), which occurred on any of the three phases due to ferroresonance phenomena in the network, and also have a weak dependence of errors on the load power.
Oil voltage transformers NKF type, 110-500kV
NKF type voltage transformers - single-phase, electromagnetic, oil, outdoor installation, designed for large-scale conversion of alternating voltage with a view to further measurement and supply to the inputs of the measuring equipment, protection and alarm device. The voltage transformers are cascaded, 66, 110 and 132 kV voltage classes are single-block, 150, 220 and 330 kV are double-block, and 400 and 500 kV are three-block. Each transformer unit has its active part and windings with electrostatic screens. The active part is placed on a porcelain tire filled with transformer oil.
Gas-insulated voltage transformers NOG series, 110-220kV
Gas-insulated measuring voltage transformers with SF6 insulation NOG series are intended for use in AC circuits at 50 or 60 Hz to transmit the measurement information signal to measurement, protection, automation, alarm and control devices. Transformers are filled with SF6 gas and have a pressure control device with a signaling device. Upon customer request, transformers can be equipped with an SF6 gas density sensor with a high and low pressure gas detector.
Gas-insulated voltage transformers NKG series, 330-500kV
Gas-insulated voltage measuring transformers NKG series are designed for use in AC circuits with a frequency of 50 or 60 Hz in order to transmit the measurement information signal to measuring, protection, automation, alarm and control devices. Transformers are gas-filled fire and explosion-proof products. Transformer NKG type, consists of two blocks. The upper unit is mounted on the flange of the lower unit and has a mechanical and electrical connection. The gas with which the transformer is filled can move from one unit to another. Each unit is a polymer tire on a metal base. The active part of the transformer is a two-core magnetic core with windings on each rod. On the lower core of the bottom of the magnetic circuit, there are two or three secondary windings - one or two primary and one additional.