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

Fault symptom 1: insufficient cooling capacity Cause analysis (1) The room or box is not sealed or the thermal insulation performance is poor (2) The evaporator frost is too thick (3) The efficiency of the compressor deteriorates (4) The expansion valve is too large or too small (5) There are more ...

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. ...

1. Normal power transmission operation process of low-voltage distribution cabinet: 1. All load switches are disconnected, confirm that the switches have at least one breakpoint; 2. Confirm that the power switch is in the disconnected position; 3. Send the power supply to the operation circuit, and the status indication is normal; 4. The incoming switch is - isolated ...

1. Filter maintenance of the indoor unit: The filter screen of the indoor unit generally needs to be replaced once every two months. It is not recommended to continue to use it after rinsing, because the rinsed filter is easy to stick, so that ventilation and ventilation are not smooth, and air circulation is affected. So if it's a one-off, direct replacement, not ...

1. DC resistance: 20°C, 0.4mm copper wire, less than or equal to 148Ω/km, 0.5mm copper wire, less than or equal to 95Ω/km. 2. Insulation electrical strength: 1min 1kv between conductors does not break down, conductors and shields 1min 3kv do not break down 3. Insulation resistance: each core and the rest of the core ...

1 Circuit breaker Low-voltage circuit breakers, also known as automatic air switches, can be switched on and off manually, and can be used to distribute electrical energy, start asynchronous motors infrequently, and protect power lines and motors. In the event of a severe overload, short circuit, or undervoltage fault, the circuit can be automatically shut down. 2 Contactors ...

Stainless steel rain top cover for AE Product model 2472.000 Outdoor fixtures are safely and reliably protected with a drain channel at the back. Material: Stainless steel 1.4301 (AISI 304). Product Description: Safe and reliable protection for outdoor installations, with ...

Display parameters: The control panel can display various parameters of the inverter, such as input/output voltage, current, frequency, speed, etc. Parameter setting: The control panel can set various parameters of the inverter, such as operating mode, frequency range, acceleration time, deceleration time, etc. ...

Rittal's outdoor cabinet + temperature control solution provides 1+1 >2 business value, combining the demands of "function and safety" into one, and guarding it in one stop. Whether it's wind, rain, lightning erosion, scorching sun exposure or blizzards, Rittal outdoor system solutions can be used all the way ...

(1) The cause of moisture in the cabinet 1) Environment shutdown. The ring main unit or the opening and closing station itself is a closed environment, because of the poor ventilation conditions, it is easy to gather moisture and generate condensation, and there are many large buildings today in order to reduce the occupied area, the opening and closing station, the power distribution room is built in the basement. Cause...

1. Set the target temperature: the default temperature of the original factory is 35°C, you can press and hold the set button for more than 1 second after starting, the parameters start to flash, complete the temperature adjustment by pressing the UP and DOWN buttons, and after adjusting to the target temperature, press the set button to store the set parameters. 2. High temperature alarm: ...

1. Preparation First of all, the user should be notified to organize the cabinet without affecting the normal operation of the user. Then, according to the topology of the network, the existing equipment, the number of users, the user group and other factors, the wiring diagram and equipment inside the cabinet are outlined.

1. Deliver the cold air to the network cabinet: Because the equipment in the cabinet needs the air conditioning the most. 2. Deliver the cold air to the front of the network cabinet: because the cold air can only enter the module server chassis from the front of the server to play a role in heat exchange. 3. Precisely adjust the ...

If the indoor temperature is higher than the outdoor one, or the indoor temperature is higher than the set temperature, the air conditioner will not start; Solution: Test the temperature comparison between indoor and outdoor to check whether the indoor temperature is too high. The voltage of the air conditioner is unstable, and the compressor cannot be started normally.

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 ...

Power system The wire and cable products used in the power system mainly include overhead bare wires, busbars (busbars), power cables (plastic cables, oil-paper power cables (basically replaced by plastic power cables), rubber cables, overhead insulated cables), branch cables (replacing part of the busbars) ...

1. E1: Temperature sensor failure 2. E2: Humidity sensor malfunction 3. E3: Compressor overload protection 4. E4: Compressor phase loss protection 5. E5: Compressor short circuit protection 6. E6: Compressor switch failure 7. E7: Fan failure ...

21. What does the workplace have to meet for high-voltage electrical appliances? Answer: A. Rated voltage, B. Maximum working voltage, C. Rated current, D. Rated short-circuit interrupting current, E. Short-time withstand current and peak withstand current. 22. What are the basic requirements for a high-voltage circuit breaker? Answer: A work ...

Many customers don't know what products Rittal makes, so today I will simply classify Rittal products. Rittal products are mainly divided into 6 categories below 6 (1) Rittal control cabinet: small cabinet (here can also be subdivided polycarbonate cabinet PK, junction box KL, compact control box EB, ...

Rittal coating method and function degreasing, nano-ceramic pretreatment, washing, used for anti-rust maintenance, used to improve the adhesion characteristics of lacquer. The conversion coating anodic dip primer of the nano-ceramic is evenly applied to the individual surfaces, edges and cavities. This constitutes a high corrosion protection ...