CN202906560U

CN202906560U - 10kV ring network power supply system

Info

Publication number: CN202906560U
Application number: CN 201220323499
Authority: CN
Inventors: 翟春廷; 崔跃文; 邱其君; 王磊
Original assignee: CHANGZHI POWER SUPPLY BRANCH OF SHANXI ELECTRIC POWER Corp; State Grid Corp of China SGCC
Current assignee: CHANGZHI POWER SUPPLY BRANCH OF SHANXI ELECTRIC POWER Corp; State Grid Corp of China SGCC
Priority date: 2012-07-05
Filing date: 2012-07-05
Publication date: 2013-04-24
Anticipated expiration: 2022-07-05

Abstract

The utility model discloses a 10kV ring network power supply system, which solves the problems of the existing city network: the mutual supply ability is low, line segments are less and the power supply reliability is low. The 10kV ring network power supply system comprises a 10kV A switch station (1) communicated with a 10kV No.1 outgoing line (3) by a 10kV A switch station circuit breaker (2), a 10kV B switch station (11) communicated with a 10kV No.2 outgoing line (9) by a 10kV B switch station circuit breaker (10), a first load (4) connected with the 10 kV No.1 outgoing line (3), a second load (4) connected with the No.2 outgoing line (9), and a ring network cabinet (5) arranged between the A switch station (1) and the B switch station (11), wherein the No.1 outgoing line (3) is communicated with the ring network cabinet (5) by a ring network cabinet first circuit breaker (6), and the No.2 outgoing line (9) is communicated with the ring network cabinet (5) by a ring network cabinet second circuit breaker (7). The 10kV ring network power supply system constructs the network structure of the mutual supply of the switch stations.

Description

A kind of 10 kilovolts of ring network power supply systems

Technical field

The utility model relates to a kind of 10 KV distribution nets and implements the electric power system that network segmentation supplies ability mutually.

Background technology

At present, city at county level net is by the radial power supply of some 10 kilovolt single supplies mostly, can not satisfy arbitrary element in electric power system, such as circuit, transformer or a certain system fault-free or for some reason barrier disconnection, electric power system still should be able to keep the requirement of stable operation and normal power supply, and the city net is low for ability mutually, and line sectionalizing is few, power supply reliability is low, can't realize power distribution automation.

Summary of the invention

It is low for ability mutually that a kind of 10 kilovolts of ring network power supply systems that the utility model provides have solved existing city net, and line sectionalizing is few, the problem that power supply reliability is low.

The utility model is to solve by the following technical programs above technical problem:

A kind of 10 kilovolts of ring network power supply systems, comprise 10 kilovolts of A switching stations and 10 kilovolts of B switching stations, 10 kilovolts of A switching stations are communicated with 10 kilovolts of No. 1 outlets by 10 kilovolts of A switching station circuit breakers, 10 kilovolts of B switching stations are communicated with 10 kilovolts of No. 2 outlets by 10 kilovolts of B switching station circuit breakers, be connected with the first load 10 kilovolts of No. 1 outlets, be connected with the second load 10 kilovolts of No. 2 outlets, between 10 kilovolts of A switching stations and 10 kilovolts of B switching stations, be provided with 10 kilovolts of ring main units, 10 kilovolts of A switching stations are communicated with 10 kilovolts of ring main units by 10 kilovolts of No. 1 outlets and ring main unit the first circuit breaker, and 10 kilovolts of B switching stations are communicated with 10 kilovolts of ring main units by 10 kilovolts of No. 2 outlets and ring main unit the second circuit breaker.

The utility model has made up the network configuration of the mutual confession of switching station, increases contact and segmentation intelligent switch, has formed strong county town power distribution network.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Embodiment

A kind of 10 kilovolts of ring network power supply systems, comprise 10 kilovolts of A switching stations 1 and 10 kilovolts of B switching stations 11,10 kilovolts of A switching stations 1 are communicated with 10 kilovolts of No. 1 outlets 3 by 10 kilovolts of A switching station circuit breakers 2,10 kilovolts of B switching stations 11 are communicated with 10 kilovolts of No. 2 outlets 9 by 10 kilovolts of B switching station circuit breakers 10, be connected with the first load 4 10 kilovolts of No. 1 outlets 3, be connected with the second load 8 10 kilovolts of No. 2 outlets 9, between 10 kilovolts of A switching stations 1 and 10 kilovolts of B switching stations 11, be provided with 10 kilovolts of ring main units 5,10 kilovolts of A switching stations 1 are communicated with 10 kilovolts of ring main units 5 by 10 kilovolts of No. 1 outlets 3 and ring main unit the first circuit breaker 6, and 10 kilovolts of B switching stations 11 are communicated with 10 kilovolts of ring main units 5 by 10 kilovolts of No. 2 outlets 9 and ring main unit the second circuit breaker 7.

By 10 kilovolts of line power supplies, power by the handle of some 10 kilovolt and begun to take shape the mutual available power mode of mutual confession by 2 switching stations by 2 10 kilovolts of switching stations for electrical network.

When 10 kilovolts of B switching stations 11 because of the maintenance or fault need have a power failure, for guaranteeing 10 kilovolts of load normal power supplies in No. 2 outlets 9, disconnect 10 kilovolts of B switching station circuit breakers 10, close ring main unit the first circuit breaker 6 and ring main unit the second circuit breaker 7 on 10 kilovolts of ring main units 5, by 10 kilovolts of No. 1 outlets 3 by 5 pairs of 10 kilovolts of No. 2 outlets of 10 kilovolts of ring main units, 9 power supplies.

When 10 kilovolts of A switching stations 1 because of the maintenance or fault need have a power failure, for guaranteeing 10 kilovolts of load normal power supplies in No. 1 outlet 3, disconnect 10 kilovolts of A switching station circuit breakers (2), close ring main unit the first circuit breaker 6 and ring main unit the second circuit breaker 7 on 10 kilovolts of ring main units 5, by 10 kilovolts of No. 2 outlets 9 by 5 pairs of 10 kilovolts of No. 1 outlets of 10 kilovolts of ring main units, 3 power supplies.

The conversion of above supply power mode has improved the line powering reliability.

Claims

1. 10 kilovolts of ring network power supply systems, comprise 10 kilovolts of A switching stations (1) and 10 kilovolts of B switching stations (11), 10 kilovolts of A switching stations (1) are communicated with 10 kilovolts of No. 1 outlets (3) by 10 kilovolts of A switching station circuit breakers (2), 10 kilovolts of B switching stations (11) are communicated with 10 kilovolts of No. 2 outlets (9) by 10 kilovolts of B switching station circuit breakers (10), be connected with the first load (4) in 10 kilovolts of No. 1 outlets (3), be connected with the second load (8) in 10 kilovolts of No. 2 outlets (9), it is characterized in that, between 10 kilovolts of A switching stations (1) and 10 kilovolts of B switching stations (11), be provided with 10 kilovolts of ring main units (5), 10 kilovolts of A switching stations (1) are communicated with 10 kilovolts of ring main units (5) by 10 kilovolts of No. 1 outlets (3) and ring main unit the first circuit breaker (6), and 10 kilovolts of B switching stations (11) are communicated with 10 kilovolts of ring main units (5) by 10 kilovolts of No. 2 outlets (9) and ring main unit the second circuit breaker (7).