Today's example for you is the grounding resistance cabinet, although it seems from its name, many friends without basic knowledge of the relevant aspects of the friends may be confused, but the product because of the wide range of applications in the electric power system, so it is still relatively critical for us, it can be used in a number of ways of grounding, with the operation of the professional staff to play a role in controlling the aspects of the role of the role of the other, we can find that this type of grounding resistance cabinet has the advantage of strong relevance, quality assurance, and compact structure makes it easy to install and use. We can find this kind of grounding resistance cabinet has the advantages of strong relevance, quality assurance, and compact structure also makes it easy to install and use. Then interested in understanding or want to purchase friends, may wish to refer to the following to learn about grounding resistance cabinet knowledge, including price comparison and product features.
One, the role of grounding resistance cabinet
China's power system neutral grounding methods are commonly used: neutral direct grounding, neutral ungrounded, neutral grounded by the arc-canceling coil (resonance grounding), neutral grounded by the resistance of the four ways. Power system grounding operation involves the safe operation of the power grid, power supply reliability, user safety and many other important issues. In terms of professional and technical aspects of the power system, overvoltage and insulation with relay protection, communication and automatic control, electromagnetic compatibility, grounding design and many other areas, is a wide range of system issues.
The neutral point is grounded by resistance, which is between the grid neutral point and the ground in series access to a certain resistor. Appropriate selection of the resistance value of the connected resistor, not only can discharge single-phase grounding arc after half-wave energy, thereby reducing the possibility of arc re-ignition, inhibit grid over-voltage spokes, but also improve the sensitivity of the relay protection device to act on the trip, thereby effectively protecting the normal operation of the system.
In the AC power grid, especially in the cable power supply network using resistance grounding is increasingly widespread.
Transformer neutral grounding resistance cabinet is a complete set of grounding equipment including grounding transformer, can be installed in the power plant plant power system, substation power supply system, industrial and mining enterprises in the distribution system, to realize the neutral point of these power grids through the resistance grounding system operation mode.
Principle: connected to the transformer neutral point and the earth between a current-limiting electrical protection equipment, in the normal operation of the grid does not work, when the grid line fault, the transformer neutral point voltage will produce offset, if the transformer neutral point connected to the grounding resistor device, which can be forced to ground the neutral point of the distribution network and limit the fault current, so that the relay protection equipment has enough time to detect, realize the tripping and standby switching. detection, realize tripping and standby switching, to avoid damage to the distribution network and electrical equipment.
Two, grounding resistance cabinet price
1, grounding resistance cabinet first? The first is to choose Baoding Zongbang? Sichuan grounding resistance cabinet
Company Name: Baoding Zhongbang Electric Co. ￥6650
2, transformer neutral grounding resistance cabinet manufacturers? Sichuan
Company Name: Baoding Zhongbang Electric Co. ￥6663
3, Zhongbang? Diesel engine set? Neutral point? Ground resistance cabinet
Company Name: Baoding Zhongbang Electric Co. ￥ 15000
The above price is for reference only
The above examples are about the grounding resistor cabinet information in many aspects, including price comparison and product features and role description, it can be learned that this type of contact with the power tool can play a role in controlling, but also has a lot of aspects of the advantages of the characteristics of the irreplaceable, such as the provision of a perfect and complete monitoring functions, and the ability of the compact structure and simplicity. Can through the compact structure and simple installation to ensure that the later perfect results, but also to a certain extent to protect the user and the safety of the equipment itself, interested in understanding or want to buy friends, may wish to refer to the above said, together with a detailed analysis of the relevant aspects of the information, I believe that it can be put to some use.