Purpose of the development: Designed to reduce the leakage current HF communication channels between power line in the opposite direction to the correspondent.

Recommended application field: Scope - Telecommunications.

Technical characteristic: Specifications (for chokes VZ-630-0,5): - RH inductance at a frequency of 50 Hz - 547 mH - RH inductance at a frequency of 100 kHz - 0530 mH - Private capacity - 30 pF - Rated continuous current 630 A - Rated short-circuit current - 16kA - Impact fault current - 41 kA - Weight - 168 kg - Height (without pallet) - 1436 mm - Diameter - 1180 mm - The minimum value of the active component of the total Resistance -650 Ohm - The frequency range barrage: 36-42 kHz; 40-48 kHz; 47-60 kHz; 59-82 kHz; 74-118 kHz; 100-200 kHz; 160-1000 kHz.

Advantages over analogues: Benefits OPN compared with arresters: - Due to the high nonlinearity of the varistor is achieved fast response to pulsed with fast transients rising edge (storm surge); - A low and constant level of voltage protection provides reliable protection element settings and chokes himself as a whole; - Due to the absence of spark gaps offline arc electrodes and causing burning, Accordingly, the failure of the arrester.

The development stage readiness: Introduced in production

Description of the development:
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High-layers consist of the reactor (RE), ogranichetelya surge and setting item (ENU). Suppressors a high-pass filter, which includes crosscuts wire power line to prevent the loss of high-frequency signal. The reactor is a coil through which current flows and industrial high frequency. Design of open type provides a natural cooling. Winding wire, depending on the operating conditions of either aluminum or copper. The reactor is painted with a special compound that provides resistance to the environment. The constancy of the distances between the turns of the coil, in order to meet the parameters of the reactor is carried out with the help of frame made of layered-derevesno of plastic, fiberglass lmbo. Structural and technological performance of the reactor provides a minimum value of the parasitic capacitance at a high resonant frequency of the coil, which allows for high performance chokes. Surge arresters are designed to protect the reactor and overvoltage element setting. There are two options Device: Surge arresters and nonlinear (ARF). Arresters with spark gaps are used only to protect small-layers in the distribution network average voltage level. The arrester consists of resistors and spark gaps enclosed in a sealed farforuvuyu tire. The protective effect of the arrester due to the fact that when a dangerous surge prishodit for insulation breakdown of the spark gap, and flows through the arrester surge current due to non-linearity of the resistor does not create dangerous for the isolation of the voltage rise. Following the breakdown of the spark gap accompanying the current flowing under the influence of power frequency voltage is interrupted at the first voltage transition through zero. Surge nonlinear (ARF) chokes are designed for medium and large size and do not have the spark gap. They are based on metal oxide varistors with a highly non-linear characteristic. In normal operation the arrester operates on line voltage. Due to the high electrical resistance nonlinear resistor current through the arrester is determined only by its own capacity limiter and a fraction of a milliampere. In the event of overvoltages nonlinear resistor becomes conducting flowing through the restrictor current increases by several orders of magnitude, reaching hundreds of thousands of amperes, while limiting further increase in the voltage at the OPN conclusions at its installation. After reducing the surge limiter returns to its original state. Arrester element housed in a fully zakratom housing and thus protected from environmental influences. Adjustment elements designed to work together with high-frequency chokes reactors, used to organize high-channels for aerial power lines. High-frequency chokes certified. The certificate of conformity is valid on the territory of CIS countries.

corresponds technical description
Conforms to technical characteristic

Possibility of transfer abroad:
Licence's sale
Realization of finished commodity

Photo

Country Ukraine

For additional information turn to:
E-mail: gal@uintei.kiev.ua