Gang electric - MNS low-voltage withdrawable switchgear

Product overview
Device is suitable for power plant and substation, petrochemical enterprises, factories and mines enterprises, high housing construction and other low-voltage distribution system of power distribution and motor control center, capacitor compensation distribution of electrical energy conversion and control.In large capacity generators, large-scale petrochemical industry such as low voltage power control center and the situations of power use, such as motor control center can meet the special needs of the interface with the computer.
This device in accordance with standard GB7251.1-2005, JB/T9661-1999, it and other low voltage draw-out switchgear standards.

Conditions of use
1, ambient air temperature is not higher than + 40 ℃, no less than 5 ℃, the average temperature is not higher than + 35 ℃ within 24 hours, more than days ", should be according to the actual situation down let run;
2, altitude does not exceed 2000 m;
3, solid circumference air relative humidity in the highest temperature is + 40 ℃ not more than 50%, at low temperature are allowed a larger relative temperature;
4, switchgear installation and no more than five vertical gradientDHS.

The main technical parameters

Product overview

1, review
Product design fully consider the general electric power users and the requirements of design, can satisfy the continuous development of electric power industry to increase passenger, computer interface, power control, convenient installation and maintenance, such as shortening the time of accident treatment need, safe, reliable, economic, and Taiwan.Products with strong ability, through capacity, good thermal stability, high electrical scheme of flexible, convenient combination and series with strong practicability, novel structure, high protection grade characteristic, is the low-voltage drawer-type switch complete sets of equipment of a high grade product.
2, the basic structure
Cabinet put oneself in another's basic structure for the company is set of table structure, basic modulus E to C type profile f = 25 mm) as the main structure, the lock self tapping screw and the class of 88 high strength bolts, and cabinet put oneself in another's position with high precision, good rigidity, good grounding continuity.
3, cabinet put oneself in another's position appearance and internal space
A) cabinet put oneself in another's position appearance to see the country 1, figure 2)
Cabinet put oneself in another's position appearance size (see table 1)

Depth of 600 mm tank is suitable for the Mcc single operation, 1000 mm deep cabinet is suitable for the Mcc double-sided operation.

B) the cabinet put oneself in another's position appearance as shown in figure 3.
Cabinet put oneself in another's overall dimensions are shown in table 1

Transportation and installation

1, product transport
Transportation unit - product four kinds of specifications of the transport unit single pack, two, three and four sets.But not more than 3 m, the total length is shown in figure.
Products of lifting (pack} : the product in the process of lifting and installation of the hoisting will Burma according to the ten places dotted line between hoisting wire rope.Wire rope apex Angle shall not be greater than 120DHS,Lifting should be smooth.To avoid strong vibration, shaking and impact.

2, the installation of the product
Switch combinations, as shown in figure 2.
The width of the foundation treatment: cable for their chosen by the user, with 10 # steel channel embedded SouTu styles and flat on the ground.If the transportation bottom ark and foundation channel steel bolt connection, the foundation channel steel mounting holes size overhead view is shown in figure.

Installation: switch cabinet in place.Pinpoint the location, as shown in figure 3 for welding, welding section ark and welding set by the user, product installation and distribution of the relative position of the reference figure 4, the sling is installed by the user to determine, manufacturers provide principle is.When the length of the busbar bridge installation sling should be considered when greater than 3 m.But when the current bus bridge too or equal to 2500 a, its length is 25 meters also should install sling.

Main circuit scheme

The use and maintenance
1, switch cabinet installed amount charged with the relevant provisions of the acceptance and electricity debugging finished, can be put into use.
2, the use of switchgear
3, maintenance of switchgear
A, use the unit should be in accordance with relevant system and then record the daily operation and maintenance.
B, check the functional unit and two respect plug plug in good and in place.
C, host unit to check whether internal wires are secure
D, removal of circuit breaker and white clapboard, if any} of dust.
E, check the accuracy and reliability of mechanical al suo.
F, check electrical performance, and action is in accordance with the requirements.
G, a maintenance every year, at the same time should also increase check electrical insulation performance.