CN-224218115-U - Novel double-bus double-section combined electrical apparatus

Abstract

The utility model relates to a novel double-bus double-section combined electrical appliance which comprises a first circuit breaker and a second circuit breaker which are symmetrically arranged on a bottom frame, and is characterized in that the first circuit breaker is connected with a first upper current transformer and a first lower current transformer, the first upper current transformer is connected with a first overhead transition main bus, a first angle isolation grounding switch is connected between the first overhead transition main bus and the first lower current transformer, the first angle isolation grounding switch is connected with the first main bus, the second circuit breaker is connected with a second upper current transformer and a second lower current transformer, the second upper current transformer is connected with a second overhead transition main bus, a second angle isolation grounding switch is connected between the second overhead transition main bus and the second lower current transformer, and the second angle isolation grounding switch is connected with the second main bus. The utility model has the beneficial effects that after the double-bus double-section interval circuit breaker is symmetrically arranged, only two interval space positions are occupied, and the space is greatly saved.

Inventors

• WANG DAZHEN
• Zhu Xiangyifan
• ZHENG LIANHAI
• YUE HANG
• WANG SHIXIN

Assignees

• 山东泰开电力开关有限公司

Dates

Publication Date

20260508

Application Date

20250512

Claims (10)

1. 1. The novel double-bus double-section combined electrical appliance is characterized in that the first circuit breaker (2) and the second circuit breaker (3) are symmetrically arranged on an underframe (1), the first circuit breaker (2) is connected with a first upper current transformer (4) and a first lower current transformer (5), the first upper current transformer (4) is connected with a first overhead transition main bus (6), a first angle type isolation grounding switch (7) is connected between the first overhead transition main bus (6) and the first lower current transformer (5), the first angle type isolation grounding switch (7) is connected with a first main bus (8), the second circuit breaker (3) is connected with a second upper current transformer (9) and a second lower current transformer (10), the second upper current transformer (9) is connected with a second overhead transition main bus (11), a second angle type isolation grounding switch (12) is connected between the second overhead transition main bus (11) and the second lower current transformer (10), and the second angle type isolation grounding switch (12) is connected with a second main bus (13).
2. 2. The novel double-bus double-section combined electrical appliance according to claim 1, wherein the first overhead transition main bus (6) is connected with a third overhead transition main bus (14), the third overhead transition main bus (14) is connected with a third angle type isolation grounding switch (15), and the third angle type isolation grounding switch (15) is connected with a third main bus (16).
3. 3. The novel double-bus double-section combined electrical appliance according to claim 1, wherein the second overhead transition main bus (11) is connected with a fourth overhead transition main bus (17), the fourth overhead transition main bus (17) is connected with a fourth corner type isolation grounding switch (18), and the fourth corner type isolation grounding switch (18) is connected with a fourth main bus (19).
4. 4. The novel double-bus double-section combined electrical appliance according to claim 2, wherein a third outer tee joint (20) and a third inner tee joint (21) are sequentially connected between the third angle-shaped isolation grounding switch (15) and the third main bus (16), a third corrugated pipe (22) is connected between the third angle-shaped isolation grounding switch (15) and the third outer tee joint (20), and the third overhead transition main bus (14) is arranged on the third inner tee joint (21) through a third supporting rod (23).
5. 5. The novel double-bus double-section combined electrical appliance according to claim 2, wherein the first overhead transition main bus (6) and the third overhead transition main bus (14) are connected through a first corrugated pipe (24).
6. 6. The novel double-bus double-section combined electrical appliance according to claim 4, wherein the third outer tee (20) is arranged on the underframe (1) through a third main supporting rod (25).
7. 7. The novel double-bus double-section combined electrical appliance according to claim 3, wherein a fourth outer tee joint (26) and a fourth inner tee joint (27) are sequentially connected between the fourth angle type isolation grounding switch (18) and the fourth main bus (19), a fourth corrugated pipe (28) is connected between the fourth angle type isolation grounding switch (18) and the fourth outer tee joint (26), and the fourth overhead transition main bus (17) is arranged on the fourth inner tee joint (27) through a fourth supporting rod (29).
8. 8. The novel double-bus double-section combined electrical appliance according to claim 3, wherein the second overhead transition main bus (11) is connected with the fourth overhead transition main bus (17) through a second corrugated pipe (30).
9. 9. The novel double-bus double-section combined electrical appliance according to claim 7, wherein the fourth external tee (26) is arranged on the underframe (1) through a fourth main supporting rod (31).
10. 10. The novel double-bus double-section combined electrical appliance according to claim 1, wherein a first control cabinet (32) and a second control cabinet (33) are arranged on the underframe (1).

Description

Novel double-bus double-section combined electrical apparatus Technical Field The utility model belongs to the technical field of power switching equipment, and particularly relates to a novel double-bus double-section combined electrical appliance. Background In the power transmission and transformation circuit, the double-bus double-section wiring mode is widely applied. The power supply device has the advantages that 1, the power supply reliability is high, one group of buses can be overhauled in turn through the switching operation of the two groups of bus isolating switches without power supply interruption, and if one group of buses fails, the power supply can be quickly restored. 2. The scheduling is flexible, and each power supply and each loop load can be distributed on a certain group of buses at will, so that the system can be flexibly adapted to the requirements of various running modes and power flow changes in the system. For indoor space, a combined electrical appliance in a double-bus double-section wiring mode is designed to meet actual requirements, and therefore space and occupied area are large. Along with the development of a novel power system, a miniaturized and intelligent transformer substation becomes a mainstream trend, and a novel combined electrical appliance with a compact structure and comprehensive functions becomes a future development trend. Disclosure of Invention The utility model provides a novel double-bus double-section combined electrical appliance with a simple and compact structure and space saving in order to make up the defects of the prior art. The invention is realized by the following technical scheme: The novel double-bus double-section combined electrical appliance is characterized in that the first circuit breaker is connected with a first upper current transformer and a first lower current transformer, the first upper current transformer is connected with a first overhead transition main bus, a first angle isolation grounding switch is connected between the first overhead transition main bus and the first lower current transformer, the first angle isolation grounding switch is connected with the first main bus, the second circuit breaker is connected with a second upper current transformer and a second lower current transformer, the second upper current transformer is connected with a second overhead transition main bus, a second angle isolation grounding switch is connected between the second overhead transition main bus and the second lower current transformer, and the second angle isolation grounding switch is connected with the second main bus. The first overhead transition main bus is connected with a third overhead transition main bus, the third overhead transition main bus is connected with a third angle type isolation grounding switch, and the third angle type isolation grounding switch is connected with the third main bus. The second overhead transition main bus is connected with a fourth overhead transition main bus, the fourth overhead transition main bus is connected with a fourth angle type isolation grounding switch, and the fourth angle type isolation grounding switch is connected with the fourth main bus. The third angle type isolation grounding switch and the third main bus are sequentially connected with a third outer tee joint and a third inner tee joint, a third corrugated pipe is connected between the third angle type isolation grounding switch and the third outer tee joint, and the third overhead transition main bus is arranged on the third inner tee joint through a third supporting rod. The first overhead transition main bus is connected with the third overhead transition main bus through a first corrugated pipe. The third outer tee is arranged on the underframe through a third main supporting rod. The fourth external tee joint and the fourth internal tee joint are sequentially connected between the fourth angle type isolation grounding switch and the fourth main bus, a fourth corrugated pipe is connected between the fourth angle type isolation grounding switch and the fourth external tee joint, and the fourth overhead transition main bus is arranged on the fourth internal tee joint through a fourth supporting rod. The second overhead transition main bus is connected with the fourth overhead transition main bus through a second corrugated pipe. The fourth outer tee is arranged on the underframe through a fourth main supporting rod. And the underframe is provided with a first control cabinet and a second control cabinet. The double-bus double-section combined electrical appliance has the beneficial effects that the double-bus double-section combined electrical appliance is divided into two circuit breakers which are symmetrically arranged, each circuit breaker is responsible for sectioning two different buses, and the dynamic side and the static side of the circuit breaker are respectively provided with a current transformer, so that t