Rittal cabinets – Q&A on the basics of high and low voltage distribution cabinets

1) Fault phenomenon: The cause of this failure is the protection action. The high-voltage cabinet is equipped with protection against overcurrent, quick cut-off, gas and temperature. 2) Judgment method: The cause of the fault can be judged according to the relay card drop, remote signaling information, etc. After the action of gas and temperature protection in the high-voltage cabinet ...

What is Arc? Arc is a physical phenomenon generated during the operation of electrical equipment, which is characterized by very strong light and high temperature. Classification of electrical loads? Primary load: those whose power supply interruption will cause personal injury or death; or those that will cause significant losses politically or economically. ...

1. The host, storage equipment, and server cabinets should be partitioned and arranged, and the host, storage equipment, server cabinets, UPS power supplies, precision air conditioners and other equipment should be set aside for maintenance according to product requirements, and the maintenance interval overlaps with adjacent equipment; 2. Enter the equipment in the computer room in stages.

The "Eastern Data and Western Computing" project aims to promote the rational layout of data centers, optimize supply and demand, green intensification and interconnection, so that the computing resources in the west can more fully support the computing of data in the east and better empower the country's digital development. 　　IT infrastructure is an important ...

The control cable has the characteristics of moisture-proof, anti-corrosion and anti-damage, and can be laid in tunnels or cable trenches. Power cables are used to transmit and distribute high-power electric energy in the main line of the power system, and the control cable transmits the electric energy directly from the distribution point of the power system to the power supply of various electrical equipment and appliances.

Opening faults can also be divided into mechanical faults and electrical faults. Electrical faults mainly include open control loops, coil faults, auxiliary switch faults, etc. 1. Fault phenomenon: when the red light is not on, the electric cannot be opened, which is the fault of the auxiliary switch. When the opening coil burns out, there is smoke, odor, insurance ...

1. Rittal cabinet can be divided into three series from the structure, ES cabinet (five-fold profile cabinet), PS cabinet (nine-fold profile cabinet), TS cabinet (sixteen-fold profile cabinet), the biggest feature is that the Rittal cabinet is the selection of profile structure structure, the structure of the cabinet is welded first, and then the top plate, bottom plate, side panel, door...

1. The power cords of the two cabinets are connected to the power socket at the rear of the cabinet. 2. The RS232 interface of the two cabinets is connected together with a communication cable. 3. Lock the door of the main cabinet, and turn on the power from the cabinet and the main cabinet in turn. ...

What are the conditions that must be met for high-voltage appliances? A: A. The insulation is safe and reliable; B. Long-term operation under rated current and certain short-term overload capacity; C. Able to carry the thermal and electrodynamic effects of short-circuit currents without damage; D. Switching electrical appliances can be safe...

1. It should have good technical performance. The structure of the cabinet should be designed according to the electrical and mechanical properties of the equipment and the requirements of the use environment, so as to ensure that the structure of the cabinet has good stiffness and strength, as well as good electromagnetic isolation, grounding, noise isolation, ...

In recent years, Rittal cabinets have been increasingly used in important equipment and projects at home and abroad. This brand from Germany Rittal cabinet has always been a tall image in the industry, the fine quality is fascinating, and the high price makes us prohibitive. With the agility of China's manufacturing industry...

Wire surface marking - according to the national standard, the wire surface should have the manufacturer name, product model and rated voltage continuous marking. This is conducive to finding the manufacturer in time when problems occur during the use of wires, and consumers must pay attention to this when purchasing wires. At the same time consume ...

1. Site selection. The location of the low-voltage distribution room should be close to the load center, set up in a place with less dust, less corrosive medium, dry and slight vibration, and should appropriately leave room for development; Second, the layout of power distribution equipment. The layout of the distribution equipment in the low-voltage distribution room must follow the principle of safety, safety, and safety.

1. Disconnect the power supply, check whether the rack of the control cabinet has reliable grounding, and make the grounding resistance not greater than 4Ω. 2. There are voltages of different properties on the control cabinet (DC 110V; Communication single-phase 220V; Three-phase communication), the circuit must be distinguished during maintenance to avoid short-circuit accidents.

1. When the electrical cabinet is used, the shell should be reliably grounded, and the electrical parts should be comprehensively inspected to eliminate the phenomenon of leakage and open circuit that may be caused by long-distance transportation, and check whether the voltage is consistent with the working voltage. 2. The electric cabinet is a non-explosion-proof oven, so it is flammable, explosive, volatile and corrosive.

1. Look at the packaging, the wires of the national standard are often better, neat, and have a sense of quality when you hold them. 2. To open the package and take a look at the wires inside, the wire requirements of the national standard wire 1.5——-6 square are required to be skin thickness (insulation thickness) is 0.7mm, and too thick is non-standard.

1. External force damage. Judging from the operation analysis in recent years, especially in Haipu East, which is developing rapidly, a considerable number of cable failures are caused by mechanical damage. For example, the cable laying and installation is not standardized, which is easy to cause mechanical damage; Engage in civil engineering on directly buried cables ...

Precautions for the installation and wiring of control cables: 1. Under the eaves. Cables can only be used if they are not directly exposed to sunlight or ultra-high temperatures, and it is recommended to use pipes. Ultraviolet (UV) – Do not apply cables without UV protection to direct sunlight rings ...

What is eddy current? What are the harms of eddy currents? Answer: When an alternating current is passed through a wire, an alternating magnetic field is created around the wire. An induced current is generated inside the whole conductor in an alternating magnetic field, and because this induced current forms a closed loop inside the whole conductor, ...

We know that electronic and electrical equipment is installed in the electrical cabinet, in fact, there are working temperature requirements, the general storage temperature can not be lower than minus 25 degrees, the working temperature can not be lower than minus 20 degrees, but now the outdoor temperature in the north is very simple to reach the lower limit of this working temperature, this time heating ...