K-7M COMPLETE DISTRIBUTING DEVICES
Complete distributing devices (further CREWE) the K(M)-7M type are intended for
completing of the closed distributing devices for reception and distribution
electric energy of alternating three-phase current of the industrial frequency of 50 Hz tension
6-10 kV for systems with the neutral isolated or grounded via the dugogasyashchy reactor. CREWE
To (M)-7M provides distribution of the electric power to consumers, protection of the departing lines from
currents of an overload, currents of KZ, decrease or increase of tension, providing continuity
power supply by means of use of APV, AVR devices. Regarding influence of climatic
factors of external environment in accordance with GOST 15150-78, GOST 15543-70 belong to a climatic modification
At category of placement 3 are also operated in the following conditions:
- height above sea level to 1000 m,
- the top working value of temperature of air is not higher 40 With,
- lower value of temperature of air minus 40 C,
- type of the atmosphere II.
