Now it is becoming a trend that switchgear becomes smarter, modularization and space saving. MNS type LV withdrawable switchgear produced by Hezong is a solution target our customer`s requirement of extending power distribution capabilities, computerized, centralized power control, easy to installation/maintenance, immediately response to error. With the world-lead technology as well as strict quality control, MNS has high performance in breaking capacity, dynamic thermal stability, flexible electrical schemes, easy to choose different modular combination, and high protection class. It can also be a choice in capacitor compensation, electrical energy conversion, distribution and control.
Distribution system and intelligent operating control of petroleum, chemistry, metallurgy, textile and constructions.
Ambient temperature: -5℃-+40℃
Relative humidity: daily average <95%, monthly average< 90%
Seismic intensity: 8
l Space saving. For the cabinet contains different function units within a smaller footprint, the space on ground would save up to 33% over current solutions.
l Universal and flexible. By using the 25mm module c-shape profile, it can meet the needs of structure , protection level, applying environment and others.
l Modular design: There are different function units to realize protection, operation, transform, control, adjustment, indicate, etc. And it assembled according to the customer`s need.
l High technical performance. The main parameters reached international advance level.
l Easy to installation and maintenance free.
IEC 439-1 Low-voltage switchgear and controlgear assemblies - Part 1: Type-tested and partially type-tested assemblies
IEC 60439.1 Low-voltage switchgear and controlgear assemblies - Part 1: Type-tested and partially type-tested assemblies
IEC 60439.2 Low-voltage switchgear and controlgear assemblies - Part 2: Particular requirements for busbar trunking systems (busways)
GB/T15576 Low-voltage reactive power compensation assemblies
IEC947-1-1988 Low-voltage switchgear and controlgear - Part 1: General rules
DL/T 5173-2012 Specification of construction survey in hydroelectric and hydraulic engineering
IEC 60038 IEC standard voltages
Iec60059 IEC standard current ratings
IEC439-1985 Low-voltage switchgear and controlgear assemblies
DL/T 5222-2005 Design technical rule for selecting conductor and electrical equipment
Main circuit rated insulation voltage
Main circuit rated operating voltage
Rated operating current of bus
1600A 2500A 3150A 4000A
Rated short-time withstand current
Rated peak withstand current
Customer should provide the following information:
l Main circuit scheme and electric single line systematic diagram
l Secondary circuit scheme or wiring diagram
l Pareto diagram of component and floor plan of switch cabinet.
l Type of inlet and outlet
l Specifications and numbers of electrical equipments for each device.
l Working current, short-circuit current, specifications of the bus bar(10*30*2, 10*60*2, 10*60*4, 10*80*2, 10*60*4) or according to our design standards.
l Indicate three-phase four-wire or three-phase five-wire or according to our design standards.
l Provide the name of each circuit(no more than 10 words). If not, we would provide blank labels.
l Protection class of the enclosure, sealing of the bottom should be asked or we will according IP33 and left the bottom open.
l Color of the coating surface should be mentioned or decided by our company.