1. Although the air switch is a type of circuit breaker, it is a switch that will automatically disconnect as long as the current in the circuit exceeds the rated current. However, air switches are used in low-voltage distribution networks and electric traction systems, mostly on the low-voltage side. It is widely used in households, such as general household switches and lighting control switches, and also has the functions of overcurrent maintenance and leakage maintenance.
2. The barrier switch only has a blocking effect, and the circuit cannot be automatically disconnected if there is a problem, but the circuit can be manually disconnected during repair to ensure the personal safety of the repair personnel. Barrier switches are generally used on the high-voltage side to play the effect of blocking circuits. It is mainly installed at the obvious separation point during maintenance, and is generally used in conjunction with short-circuit circuit breakers.
3. The circuit breaker is the most widely used, its function is far better than other switches, it has several parameters, which can not only play a blocking effect, but also maintain the back of the line and equipment. There are thermomagnetic maintenance elements inside, which can add various accessories and long-distance operation. Circuit breakers are used for high and low voltages and have a maintenance function. Some high pressures have arc extinguishing functions.
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Delixi relay maintenance method
Relay is a kind of electrical appliance that turns on or off the control circuit according to the change of external input signals, such as electrical voltage, current) or non-electrical quantity (heat, time, speed, etc.) to complete the control or maintenance mission.
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Electrical appliances need voltage regulators for reasons
Typically, every electrical device or device is designed for a wide range of input voltages. Depending on the sensitivity, the operating scale of the device is constrained to a specific value, for example, some devices can tolerate ±10% of the additional voltage, while others can tolerate ±5% or less.
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Delixi Electric CDW3 universal circuit breaker introduction
The CDW3 series frame circuit breakers are rated from 400A to 6300A and 415V/690V AC for extreme environmental conditions of 50 Hz AC and -40°C to 70°C. It is mainly used in the distribution network, distributing electric energy, protecting lines and power supply equipment from ...
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The difference between Delixi soft start and inverter
Features of the soft starter:
The motor can be soft-started, soft-stopped, and soft-stopped.
It can achieve a small impact on the machine-to-power grid.
It is much smaller than the Star-Delta starter and the installation is simple.
Frequency converters ...
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How to adjust the output voltage of Delixi voltage regulator
1. How to disassemble the voltage regulator
Generally, there are screws on the shell of the voltage regulator, please disconnect the power supply first, and then remove all the screws on both sides to take off the shell.
After the regulator shell is disassembled, the circuit, copper coil, carbon brush, etc. inside will be revealed.
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Delixi's AC contactor selection
It is selected according to the type of load current in the circuit. AC loads should be selected AC contactors, DC loads should be DC contactors, assuming that the control system is mainly AC loads, DC motors or DC loads have a small capacity, AC contactors can also be used to control, but the contact of the ...
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Low dropout linear regulator parameters and advantages and disadvantages - Delixi
Grounding current, also become quiescent current, load regulation (the smaller this value, the stronger the LDO can press the load) linear regulation (the smaller, the less influence of the input voltage on the output voltage, the better the LDO function) power supply ratio (PSSR), reflecting the Delixi LDO to the interference signal ...
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The main factor affecting the poor heat of the instrument - Delixi
The operation of differential thermal analysis is simple, but in practical work, it is often found that the same sample is measured on different instruments, or different samples are measured on the same instrument, and the results of the differential thermal curve of industrial electrical appliances are different. The high temperature, shape, area, and size of the peaks will all change. ...
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Delixi product parameter unit VF and V difference
Voltage vf and v difference: The two have different meanings, vf on the battery represents the feedback voltage, while v represents the capacity of the battery, which is the unit of measurement of voltage. Lithium battery is a kind of battery with lithium metal or lithium alloy as the positive/negative electrode data and the use of non-aqueous electrolyte solution.
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Delixi surge protector SPD technology is used
Since its creation in the 1970s, which began as a patent for Zap Trap under the pleasant name, surge maintenance equipment (SPD) has become essential in many lightning protection systems (LPS).
Surge maintainers are now used in electrical installations to avoid transient overpower ...
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Delixi inverter in the die-casting machine frequency conversion energy-saving transformation
First, the principle of energy saving
The die-casting machine is a typical periodic variable load equipment, and a complete production cycle includes the stages of mold clamping, injection, cooling, and mold opening and ejection. Usually the power of hydraulic equipment is supplied by a quantitative oil pump, and the motor that drives the oil pump to work has always been rated for its ...
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The reason for the unstable pressure of Delixi inverter system
Problem Description:
The pressure of Delixi inverter system is unstable, simple vibration?
Solution(s):
The pressure of the system is unstable, which can be due to the following reasons:
A. The position of the pressure sensor to collect the pressure of the system is ...
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Delixi small contactor structure introduction
Delixi's communication contactor is widely used in industrial electrical, contactor as a kind of electromagnetic switch, its interior is mainly composed of the main and auxiliary contacts and electromagnetic coils, static cores and other parts of the control line connection and breaking.
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Introduction of molded case circuit breaker - Delixi
Delixi plastic case circuit breaker is also called equipment circuit breaker, the external contact of the grounding terminal, arc extinguisher, tripper and operating organization are installed in a plastic shell. Auxiliary contacts, undervoltage trippers, parallel trippers, etc. Most of them are modular, very compact in structure, and generally do not consider maintenance ...
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The difference between the poles of Delixi circuit breaker
Circuit breakers account for a very large proportion of electrical sales and have a wide range of applications, but there are different standards for circuit breakers. For example, 1P, 1P+N, 2P, etc., there are also differences between them.
1. 1P circuit breaker, it is a single-stage ...
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The role of Delixi inverter on the motor
1. Frequency conversion speed regulation and energy saving. The inverter frequency conversion speed regulation and energy saving are mainly manifested in the application of fans and pumps. In order to ensure reliability in actual production, all kinds of production machinery are designed with power drives, and there is a certain margin. After turning down the motor rotation when there is no need to run at full speed in production, ...
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Installation steps of motor protector - Delixi
1. According to the requirements of the device part and the needs of the maintenance function, reasonably select the motor maintainer model and its various maintenance action parameter settings;
2. According to the requirements of the product operation manual, the correct device should be connected correctly according to the use of each terminal, and the operating power supply should be connected to the control ...
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Delixi power transformer protection role
In most large electrical systems, generators and power transformers are the two most expensive pieces of equipment. In addition to the capital cost of purchase, the continuity and reliable operation of these two key equipment systems are also the most critical.
For example, the test ...
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Delixi inverter built-in bypass soft starter CDRA-K3
Delixi built-in bypass soft starter CDRA-K3 series is a set of soft start, soft parking and multi-functional protection in one of the motor control equipment. Realize a smooth starter motor without impact during the entire starting process. CDRA-K3 series has built-in bypass contactor and control power supply.
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A brief introduction to three-phase transformer - Delixi
All large AC power blocks are connected by a three-phase transformer for transmission and distribution at high voltage levels. Single-phase transformers can be electrically connected to form a three-phase transformer bank in a distribution system. But the standard is to combine a single phase coil into a three-phase transformer unit on a common core ...
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