CN104518440B

CN104518440B - The intelligent Prefabricated high-low voltage transformer substations of 10kV

Info

Publication number: CN104518440B
Application number: CN201410812608.4A
Authority: CN
Inventors: 崔俊杰
Original assignee: Wujiang Transformer Co Ltd
Current assignee: Wujiang Transformer Co Ltd
Priority date: 2014-12-24
Filing date: 2014-12-24
Publication date: 2017-06-23
Anticipated expiration: 2034-12-24
Also published as: CN104518440A

Abstract

The present invention provides a kind of intelligent Prefabricated high-low voltage transformer substations of 10kV, including hyperbaric chamber, automation room, transformer room, low-pressure chamber, communication room, concentrator room and shell, high-voltage board is provided with hyperbaric chamber, high-voltage board uses hermetically sealed gas-insulated 10kV ring main units, the ring of ring main unit enters, the on-load switch that ring goes out is respectively mounted motor-operating mechanism and divide-shut brake position signalling auxiliary contact, the fault detector summation current transformer of the 10kV line sides configuration band signal contact output of ring main unit, fault detector has the auxiliary contact that fault-signal is exported, on-load switch position signalling, the current signal of the fault-signal summation current transformer of fault detector is exported to automation equipment；The transformer station will appreciate that the real-time operating conditions that case becomes, and failure case is become out of service, effectively prevents the generation spread with some other security incident of trouble point by the presence of Judging fault point as early as possible with the most short time.

Description

The intelligent Prefabricated high-low voltage transformer substations of 10kV

Technical field

The present invention relates to a kind of intelligent Prefabricated high-low voltage transformer substations of 10kV.

Background technology

Existing plain edition Prefabricated high-low voltage transformer substation, hereinafter referred to as case become, when being powered for cell looped network type, if A certain case in looped network cannot be judged in time when becoming outlet failure, and report has been beaten in power failure in needing cell electricity consumption resident to find house When repairing phone, electric company could look for trouble point to scene, fix a breakdown a little, cannot accomplish that early stage differentiates and excludes, greatly Big time and the cost that increased maintenance, the service data for being primarily due to case change high and low pressure side cannot be uploaded, caused to lead Cause can not in advance find and exclude.

The content of the invention

A kind of intelligent Prefabricated high-low voltage transformer substations of 10kV of the present invention, electricity behaviour is increased by high-pressure side SF6 ring main units Mechanism and the auxiliary contact of position instruction, and increase open-type 10kV current transformers and fault detector in high-tension cable side, And individually automation cell is set up, and distributing automation apparatus, uninterrupted power source are installed in cell is automated, become low pressure in case Room both sides are respectively provided with communication box and concentrator case, meet remote control, remote signalling and remote measurement requirement, so as to reach wanting for distribution automation Ask.

Technical solution of the invention is：

A kind of intelligent Prefabricated high-low voltage transformer substations of 10kV, including hyperbaric chamber, automation room, transformer room, low-pressure chamber, Communication room, concentrator room and shell, are provided with transformer in transformer room, high-voltage board is provided with hyperbaric chamber, and high-voltage board is using complete close Envelope gas-insulated 10kV ring main units, the ring of ring main unit enters, ring goes out to be separately installed with on-load switch, and on-load switch is mounted on electronic Operating mechanism and divide-shut brake position signalling auxiliary contact, the operation power of motor-operating mechanism take from uninterrupted power source, ring main unit 10kV line sides configuration band signal contact output fault detector and 10kV current transformers and/or 10kV mutual induction of voltage Device, fault detector has the auxiliary contact that fault-signal is exported, on-load switch position signalling, the fault-signal of fault detector The current signal of summation current transformer is exported to automation equipment, and automation equipment is automatic using CSG-DFA01 distribution distributions Change terminal；On-load switch connects the high-pressure side of transformer by high-tension fuse, and the two ends of high-tension fuse are connected to and connect Ground switch, the low-pressure side of transformer connects low-voltage circuit breaker by 0.4kV buses, 0.4kV current transformers；Automation is indoor Centralized FA devices or distribution FA devices are provided with, FA devices judge failure by fault detector or current transformer；Communication Interior is provided with network data transmission equipment, and user power utilization information acquisition system concentrator apparatus are provided with concentrator room.

Further, the position state signal of the on-load switch of high-voltage ring main unit and earthed switch, fuse location status letter Number, the current and voltage signals of high-pressure side and low-pressure side are in real time by the incoming background monitoring equipment of network data transmission equipment, high pressure Ring main unit load switch, the position state signal of earthed switch change auxiliary contact to obtain by position, fuse failure state Signal is obtained by travel switch position signalling, high voltage side current voltage signal passes through 10kV openable Current Mutual Inductances respectively Device and 10kV voltage transformers are obtained, and low-pressure side current signal is obtained by 0.4kV current transformers, and voltage signal is direct From 0.4kV buses.

Further, shell uses aluminum alloy casing, hyperbaric chamber, transformer room, low-pressure chamber to be arranged using mesh font, low pressure Room is respectively provided on two sides with communication room, concentrator room.

The beneficial effects of the invention are as follows：This kind of intelligent Prefabricated high-low voltage transformer substation of 10kV, without operating personnel to now , only need to can just complete putting into operation and cutting off for any one case change of looped network in consistency operation；Case change high-voltage ring main unit load is opened Position state signal, the fuse position state signal with earthed switch are closed, high and low pressure side current and voltage signals pass through optical fiber in real time Incoming background monitoring equipment, can in real time understand the operation conditions of case change, the presence of Judging fault point as early as possible, with the most short time Failure case is become out of service, the generation spread with some other security incident of trouble point is effectively prevented.

Brief description of the drawings

Fig. 1 is the structural representation of the embodiment of the present invention；

Fig. 2 is the structural representation of automation corollary equipment in embodiment；

Fig. 3 be ring main unit in embodiment ring enter, ring goes out connection diagram with on-load switch and transformer；

Wherein：1- hyperbaric chambers, 2- automations room, 3- transformer rooms, 4- low-pressure chambers, 5- communication rooms, 6- concentrators room, 7- is not Uninterruptible power, 8- transformers, 9- automation equipments, 10- shells, 11- on-load switches, 12-10kV current transformers, 13- high pressures Fuse, 14-0.4 kV current transformers, 15- low-voltage circuit breakers, 16- earthed switches.

Specific embodiment

The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.

Embodiment

A kind of intelligent Prefabricated high-low voltage transformer substations of 10kV, such as Fig. 1, including hyperbaric chamber 1, automation room 2, transformer room 3rd, it is provided with low-pressure chamber 4, communication room 5, concentrator room 6 and shell 10, transformer room 3 in transformer 8, hyperbaric chamber 1 and is provided with high pressure Cabinet, high-voltage board uses hermetically sealed gas-insulated 10kV ring main units, and the ring of ring main unit enters, ring goes out to be separately installed with on-load switch 11, On-load switch 11 is mounted on motor-operating mechanism and divide-shut brake position signalling auxiliary contact, the operation power of motor-operating mechanism Uninterrupted power source 7 is taken from, the fault detector and 10kV electric currents of the 10kV line sides configuration band signal contact output of ring main unit are mutual Sensor 12 and/or 10kV voltage transformers, fault detector have the auxiliary contact that fault-signal is exported, the position of on-load switch 11 Signal, the current signal of the fault-signal summation current transformer of fault detector are exported to automation equipment 9, such as Fig. 2, automation Device 9 is using CSG-DFA01 distribution distribution automation terminals；On-load switch 11 connects transformer 8 by high-tension fuse 13 High-pressure side, the two ends of high-tension fuse 13 are connected to earthed switch 16, and the low-pressure side of transformer 8 is female by 0.4kV Line, the connection low-voltage circuit breaker 15 of 0.4kV current transformers 14.

The on-load switch 11 of high-voltage ring main unit and the position state signal of earthed switch 16, fuse position state signal, height The current and voltage signals of pressure side and low-pressure side are in real time by the incoming background monitoring equipment of network data transmission equipment, high-voltage ring main unit On-load switch 11, the position state signal of earthed switch 16 change auxiliary contact to obtain by position, fuse failure state letter Number obtained by travel switch position signalling, high voltage side current voltage signal passes through 10kV openable current transformers respectively Obtained with 10kV voltage transformers, low-pressure side current signal is obtained by 0.4kV current transformers 14, and voltage signal is direct From 0.4kV buses.

Automation is provided with centralized FA devices or distribution FA devices in room 2, and FA devices are error analysis device, FA devices Failure is judged by fault detector or rheology；It is provided with transformer room 3 in transformer 8, communication room 5 and is provided with network data transmission User power utilization information acquisition system concentrator apparatus are provided with equipment, concentrator room 6.

By increasing the auxiliary contact of motor-operating mechanism and position instruction in high-pressure side SF6 ring main unit, such as Fig. 3, and High-tension cable side increases open-type high-tension current inductor and fault detector, and sets up individually automation room 2, in automation Distributing automation apparatus 9, uninterrupted power source 7 are installed, becoming the both sides of low-pressure chamber 4 in case is respectively provided with communication box and concentrator case in room 2, Remote control, remote signalling and remote measurement requirement are met, so as to reach the requirement of distribution automation.

High-voltage board uses hermetically sealed gas-insulated 10kV ring main units, the on-load switch 11 that ring main unit ring enters, ring goes out to install electricity Pneumatic operating mechanism, on-load switch 11 carries out division behaviour by the divide-shut brake button on panel in state on the spot to on-load switch 11 Make, on-load switch 11 in the distance state when divide-shut brake signal is then sent by automation equipment 9 division is carried out to on-load switch 11 Operation, the operation power of motor-operating mechanism takes from the alternating current 220V power supply of uninterrupted power source 7, possesses remote operation function, has Have the auxiliary contact of position instruction, including four pairs of idle contacts, wherein two normally opened, two normally closed, to meet power distribution automation the need for.

The fault detector of the 10kV line sides configuration contact output of ring main unit, fault detector possesses excessively stream and zero stream refers to Show function, action connection point is exported to automation equipment 9.

Automation room 2 is equipped with a set of centralized FA devices or distribution FA devices, and FA devices are error analysis device, are passed through Fault detector or rheology judge failure.

The equipment such as communication indoor location optical network unit ONU, fibre distribution frame ODF, optical splitter, for based on EPON technologies Network data transmission, working power is alternating current 220V, from UPS by after protective breaker power.

User power utilization information acquisition system concentrator apparatus are installed, working power is three-phase alternating current 380V in concentrator room 6, From low-voltage bus bar by being powered after protective breaker.

Uninterrupted power source 7 is also equipped with automation room 2, uninterrupted power source 7 includes UPS devices and battery pack, female by low pressure Line power taking, and uninterrupted power source 7 is provided to equipment such as distributing automation apparatus 9, motor drive mechanism, ONU, UPS capacity is 3kVA, is used It is used in the standby operation power supply when a main equipment has a power failure.

Independent automation room 2 is set so that the function distinguishing of each unit is apparent, and is caused in automation equipment inspection It is more convenient when repairing or changing, it is safer to operating personnel.The transformer station is applied to the intelligent power supplies of the supporting 10kV in residential quarters Newly-built, enlarging and reconstruction.

Claims

1. intelligent Prefabricated high-low voltage transformer substations of a kind of 10kV, it is characterised in that：Including hyperbaric chamber, automation room, transformer Room, low-pressure chamber, communication room, concentrator room and shell, are provided with transformer in transformer room, high-voltage board, high pressure are provided with hyperbaric chamber Cabinet uses hermetically sealed gas-insulated 10kV ring main units, and the ring of ring main unit enters, ring goes out to be separately installed with on-load switch, and on-load switch is equal Motor-operating mechanism and divide-shut brake position signalling auxiliary contact are installed, the operation power of motor-operating mechanism takes from uninterrupted electricity Source, the fault detector and 10kV current transformers and/or 10kV of the 10kV line sides configuration band signal contact output of ring main unit Voltage transformer, fault detector has the auxiliary contact that fault-signal is exported, on-load switch position signalling, fault detector The current signal of fault-signal summation current transformer is exported to automation equipment, and automation equipment is distributed using CSG-DFA01 Distribution automation terminal；On-load switch connects the high-pressure side of transformer, the two ends difference of high-tension fuse by high-tension fuse Earthed switch is connected with, the low-pressure side of transformer connects low-voltage circuit breaker by 0.4kV buses, 0.4kV current transformers；From Dynamicization interior is provided with centralized FA devices or distribution FA devices, and FA devices judge event by fault detector or current transformer Barrier；Network data transmission equipment is provided with communication room, user power utilization information acquisition system concentrator apparatus are provided with concentrator room； The on-load switch of high-voltage ring main unit and the position state signal of earthed switch, fuse position state signal, high-pressure side and low-pressure side Current and voltage signals in real time by the incoming background monitoring equipment of network data transmission equipment, high-voltage ring main unit on-load switch, connect The position state signal of ground switch changes auxiliary contact to obtain by position, and fuse failure status signal is by travel switch position Confidence number is to obtain, high voltage side current voltage signal passes through 10kV openable current transformers and 10kV voltage transformers respectively To obtain, low-pressure side current signal is obtained by 0.4kV current transformers, and voltage signal is directed to 0.4kV buses.

2. intelligent Prefabricated high-low voltage transformer substations of 10kV as claimed in claim 1, it is characterised in that：Shell uses aluminium alloy Shell, hyperbaric chamber, transformer room, low-pressure chamber are arranged using mesh font, and low-pressure chamber is respectively provided on two sides with communication room, concentrator Room.