Purpose of the development: Nonlinear surge suppressors (OPN) OPN Series / TEL intended for use as the primary means of protection of electrical stations and networks in medium-voltage AC power frequency 48-62 Hz from switching and lightning surges. With their design were used the latest technological advances and operating experience of OPN in domestic and foreign practice. Limiters are recommended instead of the gate voltage fuses respective classes in the design, operation, modernization and reconstruction of electrical installations.

Technical characteristic: Basic specifications Parameter ARF-KR / TEL - X / X UHL1 0.23 / 0.4 0.275 / 0.46 6/6 6.9 / 7.2 10 / 12.0 10 / 12.6 Voltage class, kV 0.23 0.4 6 6 10 10 The greatest long-term allowable stress, active value, kV 0.275 0.46 6.9 7.2 12.0 12.6 Nominal discharge current (at pulse 8/20) kA 10 10 10 10 May 10 Remaining voltage, kV, not more: - When the switching current pulse 30/60 microsecond with maximum values: 125 A - - 16.2 16.9 29.7 32.7 500 A - - 17.0 17.2 31.3 35.2 - With lightning impulse current of 8/20 with maximum values: A 5000 1.0 1.6 20.0 20.8 36.9 40.2 10000 A 1.2 2.0 21.5 22.4 39.6 43.0 20 000 A - - 24.0 25.0 44.1 47.3 Classification current (amplitude), mA 1.4 1.4 1.4 1.4 1.4 1.0 Classification power frequency voltage, rms value, kV, not less than 0.33 0.5 7.7 8.3 13.8 15.4 Current conduction, mA, no more than: - Amplitude of 0.6 0.6 0.6 0.6 0.6 0.6 - RMS value 0.45 0.45 0.45 0.45 0.45 0.45 The maximum amplitude of the current pulse 4 / 10mks kA 100 100 100 100 100 65 Specific energy ARF kJ / kV Und at least April 4 3.6 3.6 3.6 0.8 Bandwidth, 250V 250 250 250 250 150 Maximum bending force, H 305 305 305 305 305 305 Leakage distance, mm 50 50 235 235 370 310 Weight, kg, not more than 0.35 0.35 1.05 1.05 1.5 1.2 Height, mm, not more than 41 43 115 115 162 158

Advantages over analogues: Serviceability throughout life; Unlimited switching resource; Deep level of surge suppression; The wide product range of operating voltages; The stability of non-aging characteristics; Explosion protection and seismic resistance; High reliability; Resistance to atmospheric pollution; Ease of installation in the switchgear; Small weight and dimensions;

The development stage readiness: Tested experimental exploitation order

Technical and economic effect: All types of arrester / TEL are designed to operate under the following conditions: Altitude: 1000 m; Temperature: -60 ° C to +55 ° C. Humidity: The average value of 80% at 15 ° C; The upper value of 100% at 25 ° C. Since the beginning of the 90s of the 20th century a series of stops arrester / TEL proved to be reliable in operation and maintenance-free high-voltage devices, effectively protecting various types of electrical surge. Currently, the countries of the Commonwealth and abroad in service are more than 150,000 stops of this type. In addition to the known benefits of metal-oxide surge arresters, such as lack of follow current after the decay of the overvoltage wave, continuous connection to the protected network, the ability to absorb more energy and so forth. OPN / TEL have an additional set of attractive features through the use of metal-oxide resistors with a timeless characteristics combined using unique technology to the polymer housing assembly:

Description of the development:
()
Series OPN / TEL includes two types of commercially manufactured limiters: ARF-KR / TEL designed for reliable protection of electrical networks 6-10 kV voltage class with isolated or compensated neutral. Recommended for use in distribution networks for the protection of transformers and motors. They are made for indoor and outdoor installation (NF1 and 2 in accordance with GOST 15150). ARF-PT / TEL designed to guarantee protection of the most responsible in the electrical network voltage class 3-10 kV with isolated or compensated neutral. Surge arresters type-PT / TEL-3 are designed to protect the rectifier traction substations of electrified railways and other electrical equipment voltage class 3 kV (eg, linear filters of overhead power lines). Other types of ARF-PT / TEL is recommended for conditions of frequent and intensive impacts surge protection for transformers of electric arc furnaces, insulation of cable systems, electric generators, motors, etc. They are made for indoor installation (UHL2 GOST 15150).

Certif 2

corresponds technical description
Conforms to technical characteristic

Photo

Country Ukraine

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