Project title
Developing a new generation of switches for medium-voltage power distribution.
Legal basis
Agreement No. UDA-POIG.01.03.01-14-031/08-0 between the Implementing Authority – Information Processing Center and the Tele- and Radio Research Institute
Implementation date
01.10.2009. – 31.12.2012 r.
The project is implemented under the Innovative Economy Operational Program, 2007-2013, Priority 1. Research and development of modern technologies, Measure 1.3 Support for R&D projects for entrepreneurs carried out by scientific units, Sub-measure 1.3.1 Development projects.
Source of funding
Project co-financed by the European Union from the European Regional Development Fund and the state budget.
Project Objective
The main objective of the project is to develop a family of medium-voltage circuit breakers and a medium-voltage contactor with improved switching parameters, using vacuum chambers as switching elements.
Old-type solutions (e.g.: small-oil, pneumatic, magneto-blow circuit breakers) do not meet users’ requirements for mechanical and switching durability, and their technical parameters are low. The project involves the development of medium-voltage vacuum switches with rating and switching parameters that meet the needs of domestic industry for control and protection of electrical equipment.
Opis projektu
The subject of the project is the development of a family of medium-voltage circuit breakers and a medium-voltage contactor with improved switching performance, using vacuum chambers as switching elements.
The main feature of the designed circuit breakers, which distinguishes them from the designs built and operated so far, is the special type of drive and the way the chambers are arranged. It is an electromagnetic drive with an opening spring and a series setting of chambers, which will enable the switch to be used in switchgear cells with a small pitch, less than 600 mm.
The basic element of vacuum circuit breakers, intended for operation in utility and industrial power grids and designed to interrupt values above 10 kiloamperes AC with a rated voltage of 7.2 kV, will be specially designed vacuum extinguishing chambers. In order to avoid the destructive effect of the so-called electric drawn arc, which is formed when interrupting currents above 8-10 kA, it is envisaged to use a self-generating magnetic field design through the appropriate configuration of contact systems. Thanks to such properties of these chambers as:
- Complete isolation of the arc zone from the environment (protection against the release of harmful gases and metal vapors into the environment) – can be used in explosion-proof equipment,
- a small gap between the contacts allowing a compact, simple design of the drive mechanism,
- a small number of moving parts of the switch poles, which minimizes the possibility of faults.
- high operational reliability and durability of current switches will be preserved, and there will be no need for continuous maintenance.
Project completed. Project reports.
- Bielsko-Biała International Energy Fair “Energetab 2012” – PPT]
- Final report I – Description of R&D work carried out – [DOC].
- Final Report II – Degree and manner of achievement of the project’s stated objectives – [DOC].
- Final Report III – List and description of R&D results obtained to be implemented and commercialized – [DOC].
Project office
Tele and Radio Research Institute
ul. Ratuszowa 11 03-450 Warszawa
Tel: (48-22) 619 27 66
Fax: (48-22) 619 27 66
e-mail: itr@itr.org.pl
Project implementers
Scientific Team:
dr inż. Andrzej Grodziński tel: 22 831-17-40
mgr inż. Andrzej Szymański tel: 22 831-45-38
mgr inż. Anna Pytlak-Żółtowska tel: 22 831-52-21 w. 380
mgr Iwonna Iwanejko tel: 22 635-55-41
Administrative support:
Tadeusz Drozdowski M.Sc. tel: 22 618-21-88
Joanna Szydło tel: 22 618-21-88
Institute of Electrical Engineering
Scientific Team:
prof. Ph. Eng. Henryk Sibilski tel: 22 812-24-08
Andrzej Dzierżyński, M.Sc. tel: 22 812-34-74
Krzysztof Krasuski, M.Sc. tel: 22 812-24-07
Artur Hejduk, M.Sc. tel: 22 812-35-03
Administrative support:
Hanna Nicińska tel: 22 812-21-00
Urszula Garwolińska tel: 22 812-24-08