Suchergebnisse für 'Transparent face protection against droplet infection'

Five years after the first publication and based on the initiative of the VGB technical group “Electrical Equipment”, the necessity of a revision to the VGB Standards “Electrical Unit Protection” (VGB-SO25) was discussed. As a result, it was decided to do a revision and release a new publication, using the new numbering system VGB-S-162.

Five years after the first publication and based on the initiative of the VGB technical group “Electrical Equipment”, the necessity of a revision to the VGB Standards “Electrical Unit Protection” (VGB-SO25) was discussed. As a result, it was decided to do a revision and release a new publication, using the new numbering system VGB-S-162.

Corrosion Protection for Offshore Wind Structures - Part 1: General. Part 2: Requirements for Corrosion Protection Systems. Part 3: Application of Coating Systems. Part 4: Cathodic Protection (CP)

This standard is addressed to manufacturers, service providers and operators of steam turbine plants and is  in particular to assist operators in equipping their steam turbine plants.

The safe operation of steam turbines makes great demands on monitoring, limiting and protection devices.

This standard is addressed to manufacturers, service providers and operators of steam turbine plants and is  in particular to assist operators in equipping their steam turbine plants.

The safe operation of steam turbines makes great demands on monitoring, limiting and protection devices.

This VGB-Standard VGB-S-610, “Structural Design of Cooling Towers” constitutes the joint basis – together with VGB-R 135e and VGB-R 612e – for the civil engineering-related planning including design, construction and approval as well as for the con-struction of cooling tower facilities built from reinforced concrete.

This VGB-Standard VGB-S-610, “Structural Design of Cooling Towers” constitutes the joint basis – together with VGB-R 135e and VGB-R 612e – for the civil engineering-related planning including design, construction and approval as well as for the con-struction of cooling tower facilities built from reinforced concrete.

The former VGB Guideline VGB-R 170 A1e “Measures for the avoidance and handling of instrumentation and control equipment failures” was used since 2005 for the support during the specification and assessment of control and instrumentation systems with regard to their robustness against failures at increasing use of standard IT components and IT networks.

Fire-fighting operations by fire brigades in onshore wind turbines are almost impossible because of their height and resulting difficulty of accessing them. For this reason, fire prevention, early detection and early fighting of a fire, and the self-rescue of persons present in the installations during a fire are key considerations

Fire-fighting operations by fire brigades in onshore wind turbines are almost impossible because of their height and resulting difficulty of accessing them. For this reason, fire prevention, early detection and early fighting of a fire, and the self-rescue of persons present in the installations during a fire are key considerations.

More than twenty years ago, in 1994, the first edition of this standard was published in response to the rapid technological development and the growing importance of condensers in plant construction. Now that the standard has been tried and tested in many respects over the last few decades and the economic viability of a plant continues to be heavily influenced by the operation of its condensation system, it has been decided to maintain and update the standard. A fundamental revision was not necessary.

More than twenty years ago, in 1994, the first edition of this standard was published in response to the rapid technological development and the growing importance of condensers in plant construction. Now that the standard has been tried and tested in many respects over the last few decades and the economic viability of a plant continues to be heavily influenced by the operation of its condensation system, it has been decided to maintain and update the standard. A fundamental revision was not necessary.

The editorial team has decided to take the steam turbine and the generator from the VGB-R 116 “Preservation of Power Plants” (republished as VGB-S-116-00-2016-04- EN “Preservation of Power Plants”), to add a section on the gas turbine and to publish both together in this revised VGB standard “VGB-S-036-00-2017-04”. 

The editorial team has decided to take the steam turbine and the generator from the VGB-R 116 “Preservation of Power Plants” (republished as VGB-S-116-00-2016-04- EN “Preservation of Power Plants”), to add a section on the gas turbine and to publish both together in this revised VGB standard “VGB-S-036-00-2017-04”. 

The moisture contained in gaseous substances condenses on impact with colder surfaces to a greater of lesser extent, depending on the ambient conditions and in particular on pressure and temperature. If this occurs in the area of non-insulated electrical connections inside the generator, it is hardly possible to avoid electrical faults. Several cases of damage to power plant generators with similar causes and developments resulting from condensation as outlined above have provided grounds for the VGB Project Group on Generators to analyse the causes and compile recommendations for action to avoid such damage in future.

The moisture contained in gaseous substances condenses on impact with colder surfaces to a greater of lesser extent, depending on the ambient conditions and in particular on pressure and temperature. If this occurs in the area of non-insulated electrical connections inside the generator, it is hardly possible to avoid electrical faults. Several cases of damage to power plant generators with similar causes and developments resulting from condensation as outlined above have provided grounds for the VGB Project Group on Generators to analyse the causes and compile recommendations for action to avoid such damage in future.

To detect incipient damage to generators in power plants, protective equipment is installed. For electrical protection, in 2012 VGB published recommendations in the VGB-Standard VGB-S-025 “Electrical Generating Unit Protection”. The VGBStandard in hand, VGB-S-164-11, shows the protective measures that can be taken when thermal limits are exceeded or leaks and other malfunctions occur. These protective measures relate to so-called thermal/mechanical generator protection and cover generators for thermal power plants, hydroelectric power plants and wind turbines.

To detect incipient damage to generators in power plants, protective equipment is installed. For electrical protection, in 2012 VGB published recommendations in the VGB-Standard VGB-S-025 “Electrical Generating Unit Protection”. The VGBStandard in hand, VGB-S-164-11, shows the protective measures that can be taken when thermal limits are exceeded or leaks and other malfunctions occur. These protective measures relate to so-called thermal/mechanical generator protection and cover generators for thermal power plants, hydroelectric power plants and wind turbines.

Monitoring, limiting and protection devices must satisfy stringent requirements in order to afford safe and reliable operation of gas turbine units. The present revision was aimed at considering the present state of the art and the current codes of practice and ISO and VDMA standards. This Standard applies to stationary gas turbines (single-shaft and multi-shaft turbines) used to drive generators and other machinery.