Schneider 140DIO33000

Schneider|Schneider|Schneider|
Contact Mr. Wu Mobile phone number and fax (please note Wu Jian'an)
Email@
The following are our company's advantageous products (the most commonly used daily, and others Commonly used ones are not listed, but they are all done)
Your consultation is welcome!
The company's main advantageous products
American Weiss\system system
American series, series, series, series, series
Swiss robot series
French Neddikon Quantum series Processor, memory card, power module, etc.
German Menzi,, etc.
American electrical series
American Westinghouse) systems, systems, system spare parts
Germany (Bosch Rexroth/modules, controllers, drive modules, etc.
American (Motorola), ,, and other series
In fact, in the early days, when the segmentation capacity of the circuit breaker was not enough, fuses needed to be added. Now the segmentation capacity can mostly be satisfied, mainly considering current limiting, if there are electronic For similar loads and power switching is required, a fuse plus circuit breaker solution can be used. However, from a safety perspective
, a fuse is indeed required in front of the circuit breaker. We all know that there are fuses on the lines for power outage maintenance. There must be an obvious visual disconnection point to ensure the safety of maintenance personnel, and the circuit breaker cannot be used as an obvious disconnection point. Therefore, a fuse or knife switch must be installed in front of the circuit breaker. Isolate the power supply during maintenance.
At the same time, this can also be considered as a voltage level issue. Generally, it is impossible to install high-voltage fuses in the primary main circuit in the power sector, whether it is a higher-level substation or power plant. Fuses are installed in the voltage transformer of the protection and measurement circuit or the high-voltage primary circuit of the transformer. Therefore, whether it is a high-voltage user or a low-voltage user, if it is set, it will add unnecessary trouble (that is, there will be one more point that causes a fault) If
one phase is still in poor contact, or a
phase is fused, it will cause losses to the user (the motor with a missing phase will burn out. The supplier of the circuit breaker
’s equipment can fully meet the requirements for short circuits. , low voltage, overload and other abnormal conditions, the protection action will trip! If you are a low-voltage user, you don’t need to consider what main fuse to install on the low-voltage side of the transformer, because the drop insurance (actually a fuse) has been installed on the high-voltage side of the transformer. .
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