MNS LOW VOLTAGE WITHDRAWABLE SWITCHGEAR
OVERVIEW
This series of low-voltage withdrawable switchgear is a combination cabinet type assembled by factory using standard modules (FBA).This series of low-voltage withdrawable switchgear is suitable for power plants, substations, petrochemica,metalurgical steel roling, transportation andenergy, ight industry and textile enterprises, residential communities, high-rise buildings, and other places. it is used for energy conversion, distributionand control of power distribution equipment in power systems with AC 50~60HZ and rated working voltage AC 660V and below.This device complies with the national professional standards of G8 7251.1 "Low voltage switchgear" and JB/T 9961 "Low voltage withdrawableswitchgear",as well as the international professional standards of lEC 439-1.
MODELAND MEANING
CONDITIONS OF USE
Environmental temperature: The temperature should not be higher than+40 `Cnot lower than -5 *C , and the average temperature within 24 hours should notbe higher than+35 '℃C :Atmospheric conditions: The air is clean, and the relative humidity does notexceed 50% at the highest temperature of+40 C . Higher relative humidity isallowed at lower temperatures, such as 90% at+20 . However, temperaturechanges should be taken into account, as condensation may occur accidentally,Altitude: not exceeding 2000m;
This device is suitable for transportation and storage processes at temperaturesranging from -25 *C to+55 `C, and can reach+70 '℃ in a short period of time (nomore than 24 hours). Under these extreme temperatures, the device should notsuffer any irreparable damage and should be able to operate normally undernormal conditions;
If the above usage conditions cannot be met, it should be resolved throughnegotiation between the user and the manufacturer;
BASIC TECHNICAL PARAMETERS
SWVITCH CABINET TYPE
Power distribution center cabinet (PC): Emax, MT, 3WN, AH, ME series circuit breakers can be used;
Motor Control Center Cabinet (MCC): assembled from large and small drawers, with high breaking molded case circuit breakers or rotating loadswitches with fuses for each circuit main switch:
Power factor automatic compensation cabinet (with manual, automatic, and motion power factor compensation devices).
TRANSPORTATION AND STORAGE OF DEVICES
The device shall not overturn or be subjected to severe vibration;When ifting the device after unpacking, a transportation angle plate should be used, and the angle between the two steel wire ropes should bes 120 °If using a forklift, rolling rod, or prying rod, it is not allowed to be directly carried out on the bottom frame of the device,If the device needs to move a small distance when installed in place, it can be pried on the four corners of the test frame,It is not allowed to disassemble electrical products and components arbitrarily within the device,it is necessary to prevent rain and dampness, and the environmental temperature should comply with the relevant requlations of this sample
PRODUCT COMPLETENESS
The switchgear is accompanied by a packing list, product quaification certificate, product manual and necessary drawings, door keys for accompanying accessories, and spare parts provided according to the supporting list.
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