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Mr. zhang
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No.1 Wenyi West Road.Xihu District Hangzhou
2019-08-14
How can heavy-duty connectors escort urban power grids?
When the lights come on, the night is not in the center. The prosperity and noise of modern metropolis are blooming at the moment when the lights come on every night. Whether it is a financial center or a green space leisure, whether it is a commercial port or a cultural capital, reliable and intelligent power supply guarantee is undoubtedly one of the core foundations for all these to operate smoothly.
With the agglomeration effect of modern cities becoming stronger and stronger, many early power supply systems are facing the transformation and upgrading of distribution network system. However, how can these urban power supply bureaus complete the challenge of distribution network wiring as soon as possible without significantly affecting regional electricity consumption?
Field wiring of power grid is a complex project. With the popularization of smart grid and the upgrading of old stations, the number of connection lines between primary switchgear and secondary protection equipment is increasing, and the requirements for product quality are also increasing. As a hot investment in recent years, the State Grid of DTU three remote products of secondary equipment distribution terminal has clear technical specifications: the DTU three remote terminals connecting primary equipment and secondary equipment need to install air sockets, and the connecting cables use air plugs.
After years of use, more and more problems have been exposed in the traditional circular interpolation, including unstable brand quality, insufficient pulling force and inability to process on site, which not only reduces the routing efficiency of DTU, but also brings about potential safety hazards. At the same time, heavy-load connection technology designed for harsh industrial environment has gradually entered the vision of some power grid companies - this heavy-load connector technology with pre-installation, pre-wiring, anti-error insertion, more robust, appears to be more suitable for this connection application of distribution network.
On the other hand, this kind of interpolation connection mainly completes the detection of voltage circuit signal, control signal circuit and current circuit signal. "The connection of the first two circuit detection functions can be accomplished by ordinary through products. The key point is that the products needed by the third current transformer circuit detection function must have the requirement of anti-open circuit." Because in the power system, once the secondary circuit is open, the secondary circuit will be open when the current transformer is in operation. High induction potential will be generated on the winding of equipment, which may lead to serious safety accidents such as personal electric shock injury, insulation breakdown of equipment, strong overheating of CT core and damage, etc. "