Machine output panels are the crucial link between the electrical drive and the grid connection point; they are equipped with essential components for controlling and monitoring the electrical machine.
Our connection panels ensure that the required power is always available; they satisfy the most stringent requirements for quality and reliability, and they are very low maintenance.
According to project requirements, current and voltage transformers are installed for the star-point or grid sides. Additional components can include star-point handling components or an excitation transformer. Short-circuits close to the generator can enable very high currents to flow, which entails high electromagnetic forces and thermal effects. These effects can result in damage or destruction of the affected components, which is why fault scenarios are considered in the planning, simulation, and construction of the connection equipment.
Characteristics
|
Max. rated current: 3 kA |
Peak current: 50 kA |
Continuous short circuit current: 7.1 kA |
|
Max. rated voltage: 20 kV |
Short-duration current (AC, rms): 20 kA |
Power-frequency withstand voltage: 50 kV |
Ausführung
Construction
|
Indoor or outdoor installation |
Solid steel or stainless steel sheetmetal housing |
Anschluss
Machine connection
Connection to the generator via bare or insulated busbars, or with single-core cables.
Optionally, delivery including cable conduit and the busbar or cable connections to the machine.
Verwendung
Application and features
|
3 + 1 current transformers, grid-side |
3 + 1 current transformers, star-point side |
|
3 + 1 voltage transfomers, line-to-earth |
1 voltage transformer, line-to-line |
|
Power connection, machine |
Cabinet-internal star-point connection |
|
Allocation and connection of all machine control signals via an auxiliary junction box |
|
Typprüfung
Type test acc. to IEC 62271
IEC 62271-200AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV |
DIN VDE 0101Power installations exceeding AC 1 kV |
DIN VDE 0141Earthing system for special power installations with nominal voltages above 1 kV |
DIN EN 60694, VDE 0670, part 1000Common specifications for high-voltage switchgear and controlgear standards |
IEC 62271-1 Sec. 6.2Dielectric testing with the AC voltage test and lightning impulse voltage |
IEC 62271-1 Sec. 6.5Continuous current tests up to 2750 A |
Criteria 1 to 5 of IEC 62271-200: 2003-11Classification of internal arc faults |
|
Optionen
Configuration options
|
Star-point resistors, earthing resistors |
Cable connection sockets for multi-conductor cables |
|
Filter capacitors |
Surge protection devices |