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Ukraine, Kharkov
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11 years on Allbiz
RKN-600 dischargers are intended for protection of isolation of alternating current circuits with tension from 0 to 250 V and direct current with tension from 0 to 120 V in devices of railway automatic equipment and telemechanics from the pulse retension resulting from lightning discharges and switching processes in power supply lines.
RKN-600 dischargers replace dischargers of the previous generation RVNSh-250 for the purpose of protection of inputs of power supply and chains of input-output where influence of vypryamitelny effect of dischargers can be neglected.
Dischargers are used for work in the following conditions:
• Ambient temperature from minus 600C to 650C;
• Relative air humidity 100 at temperature of 250C with moisture condensation;
• Impact of gradual change of temperatures;
• Dust influence;
• Influence of vibration loads in the range of frequencies of 1-100 Hz with amplitude koreniye mustache to 20 m/s;
• Influence of shock loads of repeated action with acceleration to 30 m/s.
RKN-600 dischargers on way of protection of the person against defeat by electric current belong to the class 0 in accordance with GOST
Degree of protection of dischargers in accordance with GOST 14254-80-IP43.
Dischargers are nonrestorable products.
Insulation resistance of dischargers in reference climatic conditions in accordance with GOST 15150-69 not less:
Between conclusions of 20 megohms;
Between conclusions and the body of 500 megohms.
The static stress of breakdown of dischargers has to be in limits:
RKN-600 — from 500 to 800 V;
• RKN-900 — from 850 to 1150 V at acceptance and delivery and from 650 to 1250 V in use;
• Dynamic stress of breakdown of RKN-600 dischargers with rise speed of tension (1000±200) In/microsec has to be no more than 2000 Century.
Dischargers amplitude of impulses and their quantity provide the admission of single current pulses with duration (20±2) microsec, duration of the front (8±1) of microsec not less, at the same time:
• for RKN-600 — (20000±2000) A, 20 impulses;
• for RKN-900 — (10000±1000) A, 10 impulses.
RKN-600 dischargers provide the admission not less than 10 packs of impulses of alternating current with frequency of 50 Hz, duration of pack (1,0±0,1) pages and with a frequency of repetition no more than 0,33 packs/min., with amplitude of impulses:
• for RKN-600 — (50±5) A.
• for RKN-900 — (10±1) A.
Resistance of electric chain of contact "conclusion knife — block conclusion" no more than 0,01 Ohms.
RKN-600 dischargers provide clearing of the accompanying circuit current with the alternating operating voltage of (250±10) B and power of source of alternating current of 4 kVA.
Dischargers provide clearing of the accompanying current (100±10) mA in chain with the constant operating voltage (120±5) Century.
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