Switchgear K-37 - replacement of withdrawable element (retrofit)
Retrofit is modernization or partial re-equipment of switchgear or air-insulated secondary switchgear (AIS) with replacement of old, end-of-life equipment with modern equipment,
First of all, modernization consists in replacement of the most worn out and at the same time the most important element of such devices - oil circuit breaker. Modern types of circuit breakers are used as new switching devices - vacuum or gas-insulated, with spring or electromagnetic drive. Unlike oil circuit breakers, they do not require constant maintenance and have a long switching life. It is also possible and more complete (complex modernization) switchgear: block replacement of the compartment, providing the replacement of the withdrawal element, curtain mechanism, grounding drive, door, relay cabinet, etc.
Reliability of switchgear or CSR directly depends on the reliability of switching equipment. Such modernization is a simple and low-cost solution to the problem of wear and tear of switches of old switchgears.
Retrofit of existing electrical equipment is economically more profitable than buying new equipment, carrying out design and construction and installation work for its installation and compensation for damage from under-utilization of electricity during replacement. And periodic repairs and preventive maintenance of circuit breakers, which have outlived their service life, does not guarantee the reliability of supply to consumers. At the same time, other elements of the cell do not always require renewal.
Typical variants of equipment replacement:
1. Replacement of the old, end-of-life circuit breaker on the rolling element of the switchgear or in the CSR for a new one through a set of adaptations with the renewal or replacement of the interlocking system, as well as the adaptation of the connector of the secondary circuit breaker. This option is the most economical, but time-consuming and labor-intensive.
2. Replacement of the entire withdrawable element with a switch for a new one. In this case, the new withdrawable element is fully in overall and connection dimensions corresponds to the replaced. The entire set of interlocks also corresponds to the existing one. This option is significantly faster in terms of time and practically does not require labor costs. Also a plus of this retrofit option is the possibility to use the old withdrawable element with an oil (low-oil) switch as a reserve.
3. Replacement with a factory-made modular, so-called "OneFit" - factory-ready module with a switch, with already realized mechanical and electrical interlocks, protective shutters, a system for adapting standard plug-in power contacts to existing mating parts. This solution is the most expensive, but has a number of advantages over the previous ones:
- improved dielectric properties
- type testing according to IEC 62271 -1
- increased reliability of the module mechanisms.
We offer you documentation for the replacement of the withdrawable element of switchgear K-37 - retrofit:
- Preliminary technical documentation for participation in tenders for the replacement of the withdrawable element of switchgear K-37 - retrofit. We will prepare for you the necessary information to assess the possibility of manufacturing products in accordance with the requirements of tender documentation and questionnaires.
- Working drawings, 3-D models, and other necessary documentation for the replacement of the withdrawable element of switchgear K-37 - retrofit at your enterprise. If you do not plan to independently manufacture components and parts of the product, we will help you place their production at third-party enterprises. General assembly of the product and installation will be carried out at your enterprise.
- All documentation, if necessary, is adjusted in accordance with the requirements of the project, as well as in accordance with the technological capabilities of your enterprise.
- If equipment from another manufacturer is installed at the substation, we will prepare for you documentation for the manufacture of similar equipment in addition to the installed one
Advantages of working with us:
- You do not need to employ highly qualified engineers - You receive a set of documentation for the product being manufactured, which can be operated by a semi-skilled engineer.
- You do not need to manufacture prototypes of products - our experience allows us to successfully launch serial batches of products for production.
- Working according to our documentation - your specialists will receive advice on all the nuances of replacement of the withdrawable element of switchgear K-37 - retrofit.
For additional information on replacement of the withdrawable element of switchgear K-37 - retrofit, please contact: This email address is being protected from spambots. You need JavaScript enabled to view it.
... and, as you know, a mistake made during the design of a product results in 10-fold costs during manufacturing, and 100-fold during its operation...
