Applications:
The Grounding Transformer is a
kind of auxiliary transformer that used to offer an earth point for the
Delta-Star system. They are typically used for providing a path to ground for
unbalanced load current and for fault currents on system where a suitable
ground is otherwise not available.
Design:
The grounding
transformers are generally designed with one of the two configurations: Zig-Zag (Zn) with or without
an auxiliary winding or a Wye (Ynd) with a delta connected secondary. The
Zig-Zag connection is preferred as it is more cost effective and have smaller
size than the Delta-Wye unit. For more safety, neutral earthing resistors (NER)
are often used in conjunction with the grounding transformer to limit neutral
ground fault current magnitude. The rated voltage of the NER should be equal to
the line to ground voltage of the grounding transformer. The current rating and
duration should match the grounding transformer
Why SCOTECH
Long
history- Focus on transformer manufacturing since 1934.
Technical
support – 134 engineers stand by for you 24/7.
Manufacturing-advanced
production and testing equipment, strict QA system.
Perfect
service-The complete customer service package (from quotation to energization)
Grounding Transformer Grounding Transformer,Neutral Grounding Transformer,Neutral Earthing Transformer,Neutral Grounding Transformer For Generator Jiangshan Scotech Electrical Co.,Ltd , https://www.scotech.com
How to prevent "poison delivery"? Or, at least reduce the probability of occurrence. At the second session of the Twelfth CPPCC National Committee, Zhu Jianguo proposed to accelerate the transformation and upgrading of the Shanghai express delivery industry and introduce intelligent warehousing.
The "Proposal on Promoting the Transformation and Upgrading of the Shanghai Express Industry to Eliminate the "Drug Express" proposal" was proposed. In November last year, the death caused by the "poison delivery" incident in Shandong caused concern of all parties. Shanghai was ranked first in the national express delivery business last year. As soon as possible to promote the transformation and upgrading of the Shanghai express delivery industry into a top priority.
For the transformation and upgrading of the express delivery industry, Zhu Rongji gave several suggestions. First of all, using the free trade zone approach, the local level legislation to develop a "negative list" of the express delivery industry. This list should be enriched based on its own characteristics on the basis of the National Post Bureau's "Guide to the Catalogue of Banned Articles and Handling Measures (Trial)".
Secondly, we encourage qualified courier companies to build their own logistics or use e-commerce smart warehousing, digital data acquisition, large data collection, and everything from warehousing, inspections, inventory, shelves, picking, packaging, to delivery, etc. Links are tracked and managed quickly and accurately.
In addition, as soon as possible to implement the certificate of employment, improve access to the industry's employees "threshold." The government should take the lead in industry associations, through a series of induction training, so that couriers know where the company and the industry and the "bottom line" of the profession are, and know exactly what kind of responsibility they should bear if something goes wrong.
Finally, the government should promote the self-discipline and heteronomy of the express delivery industry through laws and regulations. Relevant powers and responsibilities should be further clarified in related laws. Only by raising the illegal cost and operating thresholds can we force our express delivery companies to strengthen their own process management and personnel quality training to ensure the efficiency and safety of services.