MNS Electrical Power Distribution Cabinet

1，Product Overview MNS Low-voltage withdrawable switchgear is my factory according to market demand and the development of a new generation of low-voltage switchgear, product technical standards in line with IEC439 "Low-voltage switchgear and control equipment"; GB72} 1...

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Description

1，Product Overview

　　MNS Low-voltage withdrawable switchgear is my factory according to market demand and the development of a new generation of low-voltage switchgear, product technical standards in line with IEC439 "Low-voltage switchgear and control equipment"; GB72} 1 "Low-voltage switchgear and control equipment" standard request:
　　MNS Low-voltage withdrawable switchgear for power plants, substations, petrochemical, metallurgy rolling, textile and other industrial enterprises and residential / region. High-rise buildings and other places, as AC 50 ~ 60Hz, rated working voltage of 660V power conversion and below the power system of power distribution equipment, distribution and control purposes.

2，normal conditions of use

2.1 Ambient air temperature not higher than + 40 ℃, not lower than -5 ℃, and 24h average temperature is not higher than + 35 ℃.
2.2 Atmospheric conditions: air cleaner, the relative humidity at the highest temperature of ten 4O ℃ not more than 50%, at a lower temperature allows a higher relative humidity, for example ten 20 ℃ to 90%, but should take into account temperature changes may occasionally produce moderate condensation ..
2.3 altitude does not exceed 2000rn,
2.4 means are adapted to the following temperature transport and storage House: - the range of 25 ℃ to 55 ℃ in a short time (less than 24h) up to + 70 ℃, in these devices should not suffer extreme temperatures to any irreversible damage, but under normal conditions should be able to work properly.
2.5 If the above conditions are not met, the user and the manufacturer shall be resolved through consultation.
2.6 When this device is used in offshore oil or nuclear power plant construction project. Should sign technology agreement.

3，Structure

The basic unit of the group table cabinet assembly structure, all structural parts have been galvanized cabinet, fastened to the basic cabinet interconnected by self-tapping locking screws or 8.8 hex screws, then the program needs to change, with the corresponding door, seal plate, partitions, mounting brackets and busbars, functional units and other parts, assembled into a complete system, the apparatus parts size, compartment size to implement modulus (modulus unit E = 25mm . below)

3。 power distribution center (hereinafter referred to as PC)

3.1.1 PC cabinet is divided into four compartments:
       In the rear of the cabinet; horizontal bus compartment;
       The functional unit compartment in front of the left front cabinet top or cabinet;
       Cable compartment: in front of the lower part of the front cabinet or cabinet to the right;
       Control back to the cold compartment: in front of the upper part of the cabinet;
       Separate measures;
       Horizontal busbar compartment and functional unit compartment, cable compartment between the sandwich board with a melamine phenolic or steel partition:
       Compartment between the control circuit and functional unit compartment with flame retardant polyurethane foam plastic molded housing separated:
       Functional unit compartment between the left and right of the cable corner room corner with steel points

3.1.2 installed only within the framework of the giant circuit breaker. Can achieve outside the cabinet in the closed state manually. Division and asked to inspect the state of the circuit breaker and the positional relationship between the operating mechanism and the door, determined that the circuit breaker in the test position or working position.
3.1.3 design between main circuit and auxiliary circuit into a separate structure, and other instruments, lights and buttons auxiliary circuit units are mounted on a plastic plate, a rear plate with flame retardant polyurethane foam made of plastic housing and separated from the main circuit.

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