Large capacity single body phase angle regulator
Technical field
The present invention relates to a kind of large capacity single body phase angle regulator, be applicable to that the trend of regulating power system transmission line in parallel distributes.This phase-angle regulator can be used for 245KV and following electric pressure, and phase shifting angle angle modulation adjusting range is in positive and negative 60 degree, and capacity is below 600MVA.
Background technology
Stable more and efficient for the operation that makes electric power system in parallel, the trend that adopts phase-angle regulator to regulate power system transmission line in parallel in some countries distributes.Phase-angle regulator is generally two machine body structures, and with the phase-angle regulator of capacity specifications, the manufacturing cost of the phase-angle regulator of two machine body structures is higher, and the installation floor space is bigger.
Summary of the invention
Technical problem to be solved by this invention provides a kind of large capacity single body phase angle regulator.
The present invention adopts following technical scheme:
Oil tank of transformer, oil conservator, vacuum on-load tap changer and operating mechanism thereof have been the present invention includes; It is characterized in that this phase-angle regulator adopts single machine body structure; Its iron core is three-phase three-column iron core or three-phase and five-pole iron core; Each phase coil outwards is arranged in order order from core limb: first voltage regulation coil, basic coil, second voltage regulation coil; The basic coil L of A phase
A1Head end a meet the vacuum on-load tap changer K of C phase respectively
C1, K
C2The switch polarity selector; The basic coil L of B phase
B1Head end b meet the vacuum on-load tap changer K of A phase respectively
A1, K
A2The switch polarity selector; The basic coil L of C phase
C1Head end c meet the vacuum on-load tap changer K of B phase respectively
B1, K
B2The switch polarity selector; First voltage regulation coil of each phase and second voltage regulation coil are received respectively on the corresponding separately vacuum on-load tap changer; First voltage regulation coil of each phase and the end of the same name of second voltage regulation coil connect the positive and negative tap position of vacuum on-load tap changer separately respectively; The tap of first voltage regulation coil of each phase is lifted one's head the load-side L that connects this phase by switch movable contact
1, L
2, L
3The tap of second voltage regulation coil of each phase is lifted one's head the mains side S that connects this phase by switch movable contact
1, S
2, S
3The basic coil L of A, B, C phase
A1, L
B1, L
C1Be delta connection.
The invention has the beneficial effects as follows that this phase-angle regulator capacity is big, capacity below 6000MVA, low cost of manufacture, it is little, easily manufactured that floor space is installed, and only be 70% of pair machine body structures with the phase-angle regulator manufacturing cost of capacity specifications.
Description of drawings
Fig. 1 is the front view of invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is circuit theory diagrams of the present invention.
In Fig. 1-3: 1. oil conservator, 2.A phase mains side sleeve pipe, 3.A phase load side sleeve pipe, 4.B phase mains side sleeve pipe, 5.B phase load side sleeve pipe, 6.C phase mains side sleeve pipe, 7.C phase load side sleeve pipe, 8. operating mechanism, 9. oil tank of transformer, 10. gilled radiator, the 11. vacuum on-load tap changers of vacuum on-load tap changer; L
A1, L
B1, L
C1Be respectively the basic coil of A, B, C phase, S1, S2, S3 are respectively the mains side of A, B, C phase, and L1, L2, L3 are respectively the load-side of A, B, C phase, L
At1, L
Bt1, L
Ct1, be respectively first voltage regulation coil of A, B, C phase, L
At2, L
Bt2, L
Ct2Be respectively second voltage regulation coil of A, B, C phase, K
A1, K
A2Be the vacuum on-load tap changer of A phase, K
B1, K
B2Be the vacuum on-load tap changer of B phase, K
C1, K
C2Be the vacuum on-load tap changer of C phase.
Embodiment
By the embodiment shown in Fig. 1-3 as can be known, it includes oil tank of transformer 9, oil conservator 1, vacuum on-load tap changer 11 and operating mechanism 8 thereof; It is characterized in that this phase-angle regulator adopts single machine body structure; Its iron core is three-phase three-column iron core or three-phase and five-pole iron core; Each phase coil outwards is arranged in order order from core limb: first voltage regulation coil, basic coil, second voltage regulation coil; The basic coil L of A phase
A1Head end a meet the vacuum on-load tap changer K of C phase respectively
C1, K
C2The switch polarity selector; The basic coil L of B phase
B1Head end b meet the vacuum on-load tap changer K of A phase respectively
A1, K
A2The switch polarity selector; The basic coil L of C phase
C1Head end c meet the vacuum on-load tap changer K of B phase respectively
B1, K
B2The switch polarity selector; First voltage regulation coil of each phase and second voltage regulation coil are received respectively on the corresponding separately vacuum on-load tap changer; First voltage regulation coil of each phase and the end of the same name of second voltage regulation coil connect the positive and negative tap position of vacuum on-load tap changer separately respectively; The tap of first voltage regulation coil of each phase is lifted one's head the load-side L that connects this phase by switch movable contact
1, L
2, L
3The tap of second voltage regulation coil of each phase is lifted one's head the mains side S that connects this phase by the switch movable contact
1, S
2, S
3The basic coil L of A, B, C phase
A1, L
B1, L
C1Be delta connection.
Operation principle of the present invention is as follows:
The basic coil L of A, B, C phase
A1, L
B1, L
C1Be used for to iron core excitation, first voltage regulation coil of each phase and second voltage regulation coil are received respectively on the corresponding separately vacuum on-load tap changer, change the tap position of vacuum on-load tap changer, can change mains side S
1, S
2, S
3With load-side L
1, L
2, L
3Between voltage, so just can change the phase shifting angle of mains side and load-side.