A kind of large-scale high-impedance transformer winding arrangement
Technical field
The utility model relates to a kind of large-scale high-impedance transformer winding arrangement, belongs to large-scale high-impedance transformer manufacturing equipment technical field.
Background technology
High-impedance transformer can effectively reduce system short-circuit electric current, improve the reliability of electrical network, can also reduce the capacity that cut-offs of the electric equipments such as line switching simultaneously, can cancel the current limiting reactor arranging separately for restriction system short-circuit electric current, thereby can reduce construction cost, reduce floor space, in electric power system, be used widely.At present, large-scale high-impedance transformer volume is large, and weight is large, and when operation, load loss is high.
Utility model content
The utility model object is to provide a kind of large-scale high-impedance transformer winding arrangement, in meeting transformer performance parameter request, can reduce the loss of transformer, improves the anti-short circuit capability of transformer, solves the problem existing in background technology.
The technical solution of the utility model is:
A kind of large-scale high-impedance transformer winding arrangement, comprise transformer core, high-tension coil, intermediate voltage winding, voltage regulation coil and low-voltage coil, transformer core is three-phase and five-pole structure, transformer fe is provided with coil in the heart, and coil puts in order from inside to outside and is followed successively by high-tension coil, intermediate voltage winding, voltage regulation coil and low-voltage coil.
Its core lamination of described transformer core adopts six grades of ladder stepping bridging arrangements.
The beneficial effects of the utility model are: in meeting transformer performance parameter request, effectively improve short-circuit impedance and the anti-short circuit capability of transformer, the load loss while reducing operation, has the features such as volume is little, lightweight, loss is low.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
In figure: transformer core 1, high-tension coil 2, intermediate voltage winding 3, voltage regulation coil 4, low-voltage coil 5.
Embodiment
Below in conjunction with accompanying drawing, by example, the utility model is described in further detail.
With reference to accompanying drawing 1, a kind of large-scale high-impedance transformer winding arrangement, comprise transformer core 1, high-tension coil 2, intermediate voltage winding 3, voltage regulation coil 4 and low-voltage coil 5, transformer core 1 is three-phase and five-pole structure, core lamination adopts six grades of ladder stepping bridging arrangements, transformer core 1 is provided with coil, and coil puts in order from inside to outside and is followed successively by high-tension coil 2, intermediate voltage winding 3, voltage regulation coil 4 and low-voltage coil 5, guarantees the requirement of product impedance from structure.