Miniature circuit breakers are: A9 (iC65, iDPN, etc.), M9 (C65, DPN, C120, NG125, etc.), E9, OSMC32N/OSMC65H, etc.
Molded case circuit breakers are: NSX, NSE, EZD, NSC, large molded case NS.
Structural circuit breakers include: MT, MTE, etc.
Lectotype:
1. Determine the category of circuit breaker according to the rated current.
2. Select the series of circuit breakers according to the maintenance function, that is, select high-end products or low-end products.
3. Select the specific model (current, voltage, breaking ability, accessories, special functions, etc.) according to the conventional circuit breaker selection.
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Anti-electromagnetic interference method - Schneider
There are three main sources of electromagnetic disturbance to the industrial system: first, space field disturbance, which enters the system through electromagnetic wave radiation; the second is power disturbance, which directly damages the system; The third is the signal disturbance channel, which enters the system through the front and rear channels connected to the host. In order to ensure that the instrumentation ...
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Inverter selection and capacity matching - Schneider
In addition, it is unscientific to select the inverter body alone, without considering whether the inverter selection and capacity matching are appropriate.
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The reason for the inverter trip - Schneider
Whenever the inverter is down due to a problem, a problem code will appear. The most common causes are overcurrent, overvoltage, inverter temperature, etc. It's a good idea to find an explanatory book with specific questions to be asked about.
1. Overload jump ...
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How to distinguish the authenticity of Schneider products
One. QR code scanning
Mainly for low-voltage power distribution and industrial control products produced from September 25, 2013
Method: Scan the QR code on the left side of the product anti-counterfeiting label to enter the self-service inquiry channel
Two. The official website ...
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Schneider ATV71 selection and letter meaning
The type of Schneider inverter generally reflects the rated voltage, rated power, and load requirements of the inverter (heavy or light load).
Here are two examples:
Example 1:
Schneider Inverter Type: ATV71HD11N ...
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How to operate the transformer DC resistance tester – Schneider
1. The instrument test has a total of YN winding three-phase test, YN winding three-phase phase-by-phase test, low-voltage winding magnetization method test of iron-core five-column low-voltage angular transformer, low-voltage winding phase selection test and general four-terminal method of ironcore three-column low-voltage angular transformer.
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Inverter maintenance inspection steps – Schneider
1. Check whether the appearance of the inverter is in good condition, including whether the indicator light is in normal operation, whether the task control function of the operation panel is complete, and carefully observe the appearance of the inverter in operation conditions, and do the corresponding recording operations; When repairing the inverter, check whether the voltage value and current value exceed the allowable ...
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Schneider Category VI unshielded RJ45 information module
Product Introduction
compose
1. RJ45 module body, 8 IDC contact pins
2. Crimping module
3. Back cover 7751S (optional)
Operating temperature range
-40°C to +70°C (65°C for non-stop use)
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Features of Schneider's different PLC series
Schneider PLC series mainly includes:
Schneider NEZA PLC (Schneider TSX08 series);
Schneider Quantum PLC (Schneider 140 series);
Schneider Micro PLC (Schneider TSX37 series);
Schneider Premium PLC (Schneider TSX...
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Inverter selection principle - Schneider
1. Select the inverter according to the load characteristics.
2. When selecting the inverter, the actual motor current value should be used as the basis for the selection of the inverter, and the additional power of the motor can only be used as a reference. Secondly, the output content of the inverter should be fully considered.
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Factors influencing the differential thermal analysis of instrumentation - Schneider
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 measurements 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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Technical causes of Schneider low-voltage circuit breaker accidents
(1) Operational failure
Operation failure is manifested by the dragging or misoperation of the circuit breaker. Because the fundamental and important function of the high-voltage circuit breaker is to act correctly and quickly remove the fault of the power grid. If the circuit breaker is dragged or misoperated, it will pose a serious threat to the power grid, first of all: (1) expansion ...
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Schneider online UPS power supply is energy-saving
1. The need for stability
When choosing UPS products, the customer's focus must be stability. For UPS, higher power means lower calorific value. Of course, only one of the primary factors that affect the internal temperature of the UPS is also to consider the heat dissipation planning of the machine itself.
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Schneider inverter maintenance power settings, waveform test problems
1. After the inverter is repaired, the power number needs to be modified, don't forget it
Generally, an inverter corresponds to a power number (also known as the number of horsepower), for example, a 75 kilowatt inverter is set under heavy load, and 100 kilowatts is set under light load. In this way, the customer will not use it to present ...
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Schneider AC contactor precautions
There are many series of contactors: LC1-SK series: below 6ALC1-K series: 6A-16ALC1-D series: 9A-150ALC1-F series: 115A-800ALC1-B series: 750A-1800A
When installing, it should be in accordance with the regulations...
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Schneider molded case circuit breakers NSX, CVS, EZD differences
1. NSX series is Schneider's high-end molded case circuit breaker, with the best performance in all aspects, and of course, the price is also the most expensive.
2. CVS series, which is the main series of Schneider, has the second best performance compared with the NSX series, but can meet the vast majority of applications, and the price is more affordable.
3 ...
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Schneider instrumentation maintenance precautions
1. Don't blindly knock and bump when overhauling to avoid expansion failures, and the more you repair, the worse it gets.
2. Do not plug and unplug various control boards and plugs with electricity. Due to the strong induced electromotive force generated by plugging and unplugging the control board under the power-on condition, the instantaneous ...
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The inverter controls the direction of the motor – Schneider
If the direction of rotation at this moment is opposite to the steering required by the equipment, please put F0-13=1 or after power-off (note that the main capacitor charge discharge of the inverter is over), the UVW output line of the inverter ...
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Power wiring requirements for Schneider PLC
The power supply of the DPLC should be taken from the trunk line with a relatively stable voltage or the special line led by the bus of the substation to ensure the voltage quality of the PLC. If the voltage fluctuates too much, consider installing a voltage regulator or uninterruptible power supply (UPS). 2. The power cord is best to use twisted pair, and its cross-sectional area should not be less than 2 square millimeters.
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Is there a restriction on the installation direction when Schneider installs the inverter?
It should be basically stored in the plate, the problem is that the plate with a fully enclosed structure is large in size, takes up a lot of space, and the cost is higher. This can be done by:
(1) The planning of the disc should be based on the heat dissipation required by the actual device;
(2) Profit ...
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