MNS Low Pressure Extraction Switch Cabinet
MNS type low-voltage withdrawable switchgear (hereinafter referred to as switchgear is developed by our company after comprehensive improvement based on MNS· series low-voltage switchgear from AB Company of Switzerland, which is the most advanced low-voltage withdrawable switchgear in China.
Description
Overviews:
MNS type low-voltage withdrawable switchgear (hereinafter referred to as switchgear is developed by our company after comprehensive improvement based on MNS· series low-voltage switchgear from AB Company of Switzerland, which is the most advanced low-voltage withdrawable switchgear in China. The products are made up of standardized series of modules, and the drawer has reliable mechanical interlocking device, making the user safer and more reliable in use.
This switch cabinet is suitable for AC 50(60)Hz, rated working voltage 400V. Under 660 v, rated current 5000 a three-phase five wire of electric power supply system, can be used in power plants, substations, industrial and mining enterprises, buildings, hotels, airports, docks, and radio and television communications center, such as for power generation, transmission and distribution, power conversion and power consumption equipment control, and through the ark to its main bus-bar capacitance compensation for reactive power compensation. Comply with national standards: GB7251.1 "Low-voltage switchgear" IEC60439 "low-voltage switchgear and control equipment"
Normal use conditions:
3.1 the ambient air temperature shall not be higher than +40℃, not less than -5℃, and the average temperature within 24n shall not be higher than +35℃
3.2 The relative humidity of the surrounding air does not exceed 50% when the highest temperature is +40℃, and it is higher when the temperature is lower, such as 90% when the temperature is +20℃. However, considering that moderate condensation may occasionally occur due to temperature changes, the relative humidity of the surrounding air does not exceed 50% when the highest temperature is +40℃.
3.3 For indoor use, the altitude of the site shall not exceed 2000m.
3.4 It should be installed in places where there is no violent vibration and impact, and where electrical components are not corroded.
Product structure:
Due to the introduction of ABB Switzerland's advanced technology, and on its original basis to improve the technology, make it more in line with China's national conditions. Cabinet put oneself in another's position with 25 mm for the modulus of C profiles by fitting to form to meet the various needs of all kinds of frame structure and the drawer units, the MCC cabinet USES the high strength of flame retardant engineering plastics components, make its safety performance is more reliable, at the same time, combined with foreign function board would be retrofit, based on 200 mm module to combine, then it is better for PC ark and MCC cabinet The design requirements of the mixed cabinet, the extraction unit and the cabinet have a reliable interlocking device, to prevent the switch in the state of power with load pull, improve its safety, in addition, the cabinet is generally assembled with cold rolled steel plate passivation treatment, but also according to the different needs of users using aluminum zinc steel plate. 5.1 Switch Cabinet Type A, electrical, bus connection Using various types of domestic and foreign frame circuit breakers such as RMW1,CW1,NA1, DW45, CDW7,MT,E series of circuit breakers as the main switch, to achieve power or bus connection function. B. Power center cabinet (PC) adopts various types of cabinet rack circuit breakers at home and abroad, such as DW45,NA1, CDW7MT, E series circuit breakers for distribution. C. Motor control center (MCC) is assembled from drawers. The main switch of each circuit adopts plastic-case circuit breaker with high breaking capacity or rotary load switch with fuse. A, reactive power compensation cabinet 5.2 Drawer type there are five sizes are 8E(200mm) height, modular structure design, its effective components installation height is 1800mm, so that the overall layout of the cabinet is more reasonable, more beautiful 8E/4: high 200× width 150 X depth 400 height space parallel combination 4 drawer units 8E/2: h 200x W 300 x D 400 height space Parallel combination 2 drawer units 8E: H 200x w 600 x D 400 height space Assembly 1 drawer unit 16E: Height 400x width 600x depth 400 height space assembly 1 drawer unit 24E: height 600x width 600x depth 400 height space assembly 1 at 24E(600mm) height.
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