1 meter Sieve Machine is a standard and popular size sieve machine. It is widely in mine, industry and agriculture etc.
1 merter Vibrating Screen is a high efficiency machine, which can fit 1 ~ 5 layers of sieve.
Overview of GGD AC low-voltage distribution cabinet
The power distribution cabinet GGD type AC low-voltage power distribution cabinet is suitable for power users such as power plants, power stations, factories and mining enterprises, AC 50Hz, rated working voltage 380V, rated working current up to 3150A, as power, lighting and distribution equipment Power conversion, distribution and control.
GGD AC low-voltage distribution cabinet is a new type of low-voltage distribution cabinet designed according to the requirements of the energy supervisor, the majority of power users and the design department, based on the principles of safety, economy, reasonableness and reliability. The product has high breaking capacity; good dynamic and thermal stability; flexible electrical scheme and convenient combination; series and practicability; novel structure; high protection level and other characteristics. It can be used as a replacement product for low-voltage switchgear.
Distribution Cabinet
(1) Power distribution cabinets are fixed panel switch cabinets, often called switch boards or power distribution screens. The power distribution cabinet is an open type switch cabinet with panel blocking. The front has a protective effect, and the live parts can still be touched on the back and sides. The protection level is low. , Used for centralized power supply in transformer room.
(2) Protective (ie closed) switchgear for power distribution cabinets refers to a type of low-voltage switchgear with all sides closed except for the installation surface. The electrical components such as the switch, protection and monitoring control of this cabinet are installed in a closed enclosure made of steel or insulating material, which can be installed reliably or off the wall. No isolation measures can be added between each circuit in the cabinet, and the distribution cabinet can also be isolated with a grounded metal plate or insulation plate. Usually the door and main switch are mechanically interlocked. In addition, there are protective table-type switchgears (ie consoles), and electrical appliances such as control, measurement and signal are installed on the panel. Protective switchgear is mainly used as a power distribution device at the process site.
(3) Drawer-type switch cabinet of power distribution cabinet. This type of switchgear is made of steel plate to make a closed shell. The electrical components of the inlet and outlet circuits are installed in drawable drawers, which constitute a functional unit that can complete a certain type of power supply task. The functional unit and the bus bar or cable are separated by a grounded metal plate or a functional board made of plastic to form three areas of the bus bar, functional unit and cable. There are also isolation measures between each functional unit. The drawer type switch cabinet has high reliability, safety and interchangeability. It is a relatively advanced switch cabinet. Most of the switch cabinets currently produced are drawer type switch cabinets. They are suitable for industrial and mining enterprises and high-rise buildings that require high power supply reliability, as a centralized control distribution center.
Distribution cabinet installation requirements
1 The layout of the power distribution cabinet must follow the principles of safety, reliability, applicability and economy, and attention should be paid to facilitate operation, handling and maintenance, test monitoring and wiring work. 2 In the power distribution room, there should be no other pipes except for the pipes required in this room. There should be no valves and intermediate joints above and below the indoor heating pipeline, and the connection between the pipeline and the radiator should be welded. 3 When the length of power distribution cabinets arranged in rows exceeds 6m, the passage behind the cabinet shall have two outlets leading to this room or other rooms, and shall be arranged at both ends of the passage, when the distance between the two outlets exceeds 15m At the same time, exports should be increased in the meantime. 4 When the high-voltage and low-voltage cabinets need to be installed in the same room and as long as one of the two cabinets has exposed busbars, the clear distance between the two should not be less than 2m. 5 For power distribution cabinets arranged in rows, the channel width in front of and behind the cabinet shall not be less than the values ​​listed in the following table. 6 Earthquake prevention measures shall be taken when the power distribution cabinet is installed in a vibration place. 7 The connection between the main body of the power distribution cabinet and the equipment in the cabinet should be firm. The cabinet body should have an obvious and reliable grounding device, and the openable cabinet door equipped with electrical appliances should be reliably connected with a flexible wire and a grounded metal frame. The complete cabinet is equipped with fixed facilities for the portable grounding wire (except the trolley type power distribution cabinet). 8 The paint layer of the power distribution cabinet shall be complete and free from damage, and the brackets for fixing electrical appliances shall be painted. Cabinets installed in the same room and frequently monitored should have consistent colors.
Distribution box size problem
1. When the distribution box is only a lighting electric box or a small power, when the incoming line is less than 10 square, if the number of switches is less than 20, the width of the switch is added, and the width of the box is added by 20MM on each side, and the height is the switch Height plus 40MM, depth is the maximum depth of the switch plus 10MM
2 When the distribution box is only a lighting electric box or a small power, and the incoming line is less than 10 square, if the number of switches is greater than 20, then the electric box needs to be arranged as two rows of switches, the width of the switch is added together and then added on each side 40MM is the width of the electric box, the height is the height of the switch plus 40MM, and the depth is the maximum depth of the switch plus 10MM
3 When the distribution box is only a lighting electric box or a small power, and the incoming line is less than 10 square meters, if the incoming line switch needs a separate row, the width of the switch is added together and then 20MM on each side is the width of the electric box, and the height is the switch The height is added to the line switch height plus 40MM, the depth is the maximum depth of the switch plus 10MM
Distribution box installation requirements:
(1) The power distribution system at the construction site shall be provided with an indoor total power distribution screen and distribution electric box or an outdoor main distribution box and distribution electric box with hierarchical power supply. The capacity of the power distribution devices at all levels shall match the actual load. Power and lighting should be set separately.
(2) The production and installation of the distribution box and switch box should meet the following requirements: â‘ The distribution box is made of iron plate or other fireproof insulation materials to achieve ventilation, heat dissipation, rainproof and fire prevention; â‘¡All kinds of electrical appliances in the box should be installed On a metal or other insulating board (non-wood board), and fastened in the box. The metal bottom plate should be electrically connected to the box; â‘¢ Normally uncharged box metal shell, base, etc. must be connected to zero (ground), and connected through special terminals, and separated from the protective zero line terminal board. Insulated conductors shall be used for each electrical connection line, and the joints shall be reliable and shall not be exposed; â‘£ Rubber cables shall be used for the inlet and outlet lines. Incoming (outgoing) lines should be made with waterproof bends and must not withstand external forces.
(3) The rated value and action setting value of the electrical equipment in the main distribution box should be compatible with the rated value and action setting value of the shunt switch electrical equipment. And install the main automatic switch, leakage protector and shunt automatic switch.
(4) Various electrical components and leakage protectors used in distribution boxes at all levels should meet the quality requirements of the national standard.
(5) The leakage protectors in the distribution boxes at all levels should be reasonably arranged to play a role of classification and section protection.
(6) The leakage protector should be used strictly in accordance with the product manual, and regular tests and operation records should be made regularly. For those that have been idle for a long time and used continuously for more than one month, they should be inspected and tested before they are qualified.
Distribution cabinet cleaning problem
The low-voltage distribution cabinet system needs to be cleaned, inspected, tightened and inspected once every five years. For insurance purposes, it is searched once a month. It can also be the fourth after cleaning, inspection, tightening and inspection Each group of low-voltage distribution cabinet systems must be cleaned, inspected, tightened and inspected in batches every year, so that by the fifth year, all low-voltage distribution cabinet systems can be cleaned, completed within five years Inspection, tightening and inspection work can be cycled by analogy in the future. This decentralized implementation method can not only reduce the labor intensity of maintenance personnel in a relatively concentrated period of time, but also effectively reduce operation and maintenance costs. Reduce the inconvenience caused to users by power outages. 1. Cleaning requirements of low-voltage distribution cabinet (1) After the operator completes the power-off operation of the low-voltage distribution cabinet, the operator who undertakes the cleaning operation of the low-voltage distribution cabinet needs to carry out electrical inspection and discharge work. (2) Depending on the model of the low-voltage power distribution cabinet and the installed low-voltage electrical appliances, appropriate protection work should be done to prevent accidental dropping of dust and other debris into the low-voltage electrical appliances during the cleaning operation. (3) For cleaning, no dust is required for the low-voltage power distribution cabinet and the installed low-voltage electrical enclosure parts. During acceptance, the acceptance personnel should wear white gloves to touch the low-voltage power distribution cabinet and the installed low-voltage electrical enclosure, etc. The white gloves are not contaminated with dust as the acceptance standard. (4) After the cleaning is completed and accepted, the cleaning operator needs to carefully check and ensure that no foreign objects are left in the low-voltage distribution cabinet and the installed low-voltage electrical appliances. After the cleaning operator signs the power transmission permission commitment, Only the operation can send power.
================================================== ================================================== ====== 
Diameter 1000mm Vibrating Screen, Sieve Machine, 1 Meter Sieve Vibrating Machine, Sifter Manufacture and Supplier
Xinxiang Xin Ming De Machinery Co., Ltd. , https://www.xmdsieve.com