JP2004236453A5 - switchboard - Google Patents

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Publication number
JP2004236453A5
JP2004236453A5 JP2003023142A JP2003023142A JP2004236453A5 JP 2004236453 A5 JP2004236453 A5 JP 2004236453A5 JP 2003023142 A JP2003023142 A JP 2003023142A JP 2003023142 A JP2003023142 A JP 2003023142A JP 2004236453 A5 JP2004236453 A5 JP 2004236453A5
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JP
Japan
Prior art keywords
load
common bus
conductor
transformer
power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2003023142A
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Japanese (ja)
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JP3699455B2 (en
JP2004236453A (en
Filing date
Publication date
Application filed filed Critical
Priority to JP2003023142A priority Critical patent/JP3699455B2/en
Priority claimed from JP2003023142A external-priority patent/JP3699455B2/en
Publication of JP2004236453A publication Critical patent/JP2004236453A/en
Publication of JP2004236453A5 publication Critical patent/JP2004236453A5/en
Application granted granted Critical
Publication of JP3699455B2 publication Critical patent/JP3699455B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

【0001】
【産業上の利用分野】
本発明は、ビル、マンション等のような建造物の電気室に設けられる受配電設備を構成
する配電盤に関するものである。
[0001]
[Industrial application field]
The present invention constitutes a power receiving and distributing facility provided in an electric room of a building such as a building or a condominium.
It is about the switchboard .

【0002】
【従来の技術】
ビル、マンション等のような建造物の電気室には受配電設備が収容されており、ここか
ら各階動力、電灯負荷等への電力供給を行っている。
0002.
[Conventional technique]
Power receiving and distribution equipment is housed in the electric room of a building such as a building or condominium, and power is supplied to the power of each floor, the lamp load, etc. from here.

【0006】
【発明が解決しようとする課題】
ところで、従来の配電盤を用いた受配電設備においては、例えば受配電ユニット2′を
構成する変圧ユニット2aの配電用変圧器2a2が故障して電力が供給できなくなった場合
、その受配電ユニット2′に対応する負荷に、他の健全な受配電ユニット3′ないし受配
電ユニット6′のいずれかから電力を供給して負荷を一括救済するようにしている。負荷
救済時には、他の健全な受配電ユニット、例えば受配電ユニット3′の配電用変圧器3a2
の低圧側と故障した受配電ユニット2′の配電盤2bの共通母線導体2b2とを図示しない
負荷救済用ケーブルで接続して、受配電ユニット2′が故障しているにも拘わらず、この
受配電ユニット2′から電力を供給するようにしている。
0006
[Problems to be Solved by the Invention]
By the way, in a power receiving / distributing facility using a conventional power distribution panel, for example, when the power distribution transformer 2a2 of the transformer unit 2a constituting the power receiving / distributing unit 2'fails and power cannot be supplied, the power receiving / distributing unit 2' Power is supplied to the load corresponding to the above from any of the other sound power receiving / distributing units 3'or the power receiving / distributing unit 6'to collectively relieve the load. At the time of load relief, another sound power receiving and distribution unit, for example, the power distribution transformer 3a2 of the power receiving and distribution unit 3'.
The low voltage side of the power receiving and distribution unit 2'and the common bus conductor 2b2 of the distribution board 2b of the power receiving and distributing unit 2'that failed are connected by a load relief cable (not shown), and this power receiving and distribution unit 2'is out of order. Power is supplied from the unit 2'.

本発明の目的は、健全な受配電ユニット(変圧ユニット)から故障した受配電ユニット(変圧ユニット)に対応する負荷に電力を供給して負荷を分割救済できるようにした配電盤を提供することにある。An object of the present invention is to provide a switchboard capable of supplying electric power from a sound power receiving and distributing unit ( transforming unit) to a load corresponding to a failed power receiving and distributing unit (transforming unit) so that the load can be divided and relieved. ..

【0010】
【課題を解決するための手段】
請求項1に記載の発明は、2つ以上の変圧ユニットにそれぞれ接続されて変圧ユニット
と同数により構成されると共に、それぞれ複数個の配線用遮断器を有する配電盤を対象と
し、複数個の配線用遮断器を2つ以上の群に分け、群に分けられた配線用遮断器の1次側
が群に対応して設けられた分割共通母線導体にそれぞれ接続され、通常時は隣接する分割
共通母線導体間が母線接続導体により接続され、各変圧ユニットから各変圧ユニットに対
応して設けられている分割共通母線導体に接続される負荷に電力を供給し、負荷救済時は
故障した変圧ユニットに対応して設けられている分割共通母線導体同士が切り離され、切
り離された分割共通母線導体が少なくとも他の変圧ユニットに電気的に接続されて他の変
圧ユニットから故障した変圧ユニットに対応する負荷に電力を供給するように構成したも
のである。
0010
[Means for solving problems]
The invention according to claim 1 is connected to two or more transformer units, respectively, to form a transformer unit.
For switchboards that are composed of the same number as the above and each have multiple molded case circuit breakers.
Then, divide a plurality of molded case circuit breakers into two or more groups, and the primary side of the molded case circuit breakers divided into groups.
Are connected to the division common bus conductors provided corresponding to the group, and normally adjacent divisions.
The common bus conductors are connected by bus connection conductors, and each transformer unit is connected to each transformer unit.
Power is supplied to the load connected to the split common bus conductor provided accordingly, and when the load is relieved,
The split common bus conductors provided corresponding to the failed transformer unit are separated from each other and cut off.
Separated split common bus conductors are electrically connected to at least other transformer units and other variants
It is also configured to supply power from the pressure unit to the load corresponding to the failed transformer unit.
It is.

請求項1に記載の発明においては、分割共通母線導体を採用したことにより、健全な変 圧ユニットから故障した変圧ユニットに対応する負荷に電力を供給して負荷の分割救済が 行え、しかも、変圧ユニットの配電用変圧器の各容量低減が行える。 In the invention according to claim 1, by adopting the split common bus conductor, power can be supplied from a sound transformer unit to the load corresponding to the failed transformer unit to relieve the load split , and moreover, the transformer can be transformed. Each capacity of the distribution transformer of the unit can be reduced.

請求項2に記載の発明は、負荷救済時に分割共通母線導体が救済用電源に電気的に接続 されて救済用電源から故障した変圧ユニットに対応する負荷に電力を供給するように構成 したものである。 The invention according to claim 2 is configured such that the split common bus conductor is electrically connected to the relief power supply at the time of load relief, and power is supplied from the relief power supply to the load corresponding to the failed transformer unit . be.

請求項2に記載の発明においては、負荷救済時に救済用電源を用いることにより、他の 健全な受配電ユニット数の不足分が救済用電源で補える。 In the invention according to claim 2, by using the relief power supply at the time of load relief, the shortage of the number of other sound power receiving and distribution units can be compensated by the relief power supply.

請求項3に記載の発明は、配線用遮断器の群の数を、変圧ユニットの数から1を差し引 くようにしたものである。 The invention according to claim 3 is such that the number of groups of molded case circuit breakers is subtracted from 1 from the number of transformer units .

請求項3に記載の発明においては、群の数を、変圧ユニットの数から1を差し引くこと により、変圧ユニットの配電用変圧器の各容量低減が最大になる。 In the invention according to claim 3, by subtracting 1 from the number of transformer units for the number of groups, the reduction in each capacity of the distribution transformer of the transformer unit is maximized.

請求項4に記載の発明は、母線接続導体を、配線用遮断器を収容する収納体からはみ出 すように負荷救済時に接続し直されるようにしたものである。 The invention according to claim 4 is such that the bus connecting conductor is reconnected at the time of load relief so as to protrude from the housing body accommodating the molded case circuit breaker .

請求項4に記載の発明においては、母線接続導体を収納体からはみ出すように接続した ことにより、負荷救済用ケーブルが容易に接続される。 In the invention according to claim 4 , the load relief cable is easily connected by connecting the bus connecting conductor so as to protrude from the housing .

請求項5に記載の発明は、母線接続導体を、分割共通母線導体とボルトにより締め付け て接続するための導体接続用ボルト貫通孔が設けられ、導体接続用ボルト貫通孔が負荷救 済時に負荷救済用ケーブルの接続に兼用されるようにしたものである。 The invention according to claim 5 is provided with a conductor connecting bolt through hole for connecting the bus connecting conductor by tightening it with a split common bus conductor by a bolt , and the conductor connecting bolt through hole relieves the load at the time of load relief. It is also used for connecting cables.

請求項5に記載の発明においては、導体接続用ボルト貫通孔を負荷救済用ケーブルの接 続に兼用したことにより、貫通孔の数が減る。 In the invention according to claim 5, the number of through holes is reduced by using the conductor connection bolt through holes for connecting the load relief cable .

負荷救済時、例えば、受配電ユニット3が故障した場合には、図3(B)に示すように、母線接続導体3B4が第1の分割共通母線導体3B31から切り離され、収納体3B2からはみ出すように第2の分割共通母線導体3B32に接続し直される。また、図2(B)に示した引き込み用ケーブル8が第1の分割共通母線導体3B31の上端から切り離される。その後、これらの母線接続導体3B4,3B4,3B4(1相分のみ表示)に3相の負荷救済用ケーブル10,10,10(1相分のみ表示)の一端は例えばボルト(図示しない)により接続され、他端は他の健全な受配電ユニット、例えば受配電ユニット2の配電用変圧器2A2の低圧側と接続される。また、図示しない負荷救済用ケーブルの一端は、引き込み用ケーブル8が接続されていた第1の分割共通母線導体3B31の上端に接続され、他端は他の健全な受配電ユニット、例えば受配電ユニット4の配電用変圧器4A2の低圧側と接続されて、受配電ユニット3が故障しているにも拘わらず、この受配電ユニット3から電力を供給するようにしている。このように、第1群の配線用遮断器3B11,3B11…及び第2群の配線用遮断器3B12,3B12…を介して受配電ユニット3に対応する負荷に電力を供給し て負荷を分割救済できるようになっている。At the time of load relief, for example, when the power receiving / distributing unit 3 fails, as shown in FIG. 3B, the bus connecting conductor 3B4 is separated from the first split common bus conductor 3B31 and protrudes from the housing 3B2. It is reconnected to the second split common bus conductor 3B32. Further, the lead-in cable 8 shown in FIG. 2B is separated from the upper end of the first split common bus conductor 3B31. After that, one end of the three-phase load relief cable 10, 10, 10 (only one phase is displayed) is connected to these bus connection conductors 3B4, 3B4, 3B4 (only one phase is displayed) by, for example, a bolt (not shown). The other end is connected to another sound power receiving and distributing unit, for example, the low voltage side of the power distribution transformer 2A2 of the power receiving and distributing unit 2. Further, one end of the load relief cable (not shown) is connected to the upper end of the first split common bus conductor 3B31 to which the lead-in cable 8 is connected, and the other end is another sound power receiving and distributing unit, for example, a power receiving and distributing unit. It is connected to the low voltage side of the power distribution transformer 4A2 of No. 4, and power is supplied from the power receiving and distribution unit 3 even though the power receiving and distribution unit 3 is out of order. In this way, power is supplied to the load corresponding to the power receiving and distribution unit 3 via the first group of molded case circuit breakers 3B11, 3B11 ... And the second group of molded case circuit breakers 3B12, 3B12 ..., and the load is divided and relieved. You can do it.

上記の実施形態では、配線用遮断器の群の数が受配電ユニット数よりも少ない場合であったが、配線用遮断器の群の数が受配電ユニット数と同じである場合、受配電ユニット数 及び配線用遮断器の群の数が例えば2つの場合、負荷救済時に分割共通母線導体の一方を 健全な受配電ユニットに接続し、分割共通母線導体の他方を救済用電源、例えば移動式変電所に電気的に接続し、健全な受配電ユニット及び救済用電源から故障した受配電ユニッ トに対応する負荷に電力を供給するようにしてもよい。このように、全部の負荷を救済す ることができる。 In the above embodiment, the number of groups of wiring breakers is smaller than the number of power receiving and distributing units , but when the number of groups of wiring breakers is the same as the number of power receiving and distributing units, power receiving and distributing units. When the number and the number of groups of wiring breakers are, for example , two, one of the split common bus conductors is connected to a sound power receiving and distribution unit at the time of load relief, and the other of the split common bus conductors is a relief power supply, for example, a mobile substation. It may be electrically connected to the place to supply power from a sound power receiving and distribution unit and a relief power supply to the load corresponding to the failed power receiving and distributing unit . In this way, the entire load can be relieved .

さらに上記の実施形態では、負荷救済時に他の健全な受配電ユニットから全部の分割共通母線導体を介して電力を供給するようにしているが、全部の負荷を救済するのではなく 分割共通母線導体のうちの選択された分割共通母線導体、例えば、重要な負荷が接続された分割共通母線導体であってもよい。Further, in the above embodiment, power is supplied from another sound power receiving / distributing unit through all the divided common bus conductors at the time of load relief, but the entire load is not relieved but divided. A selected split common bus conductor of the common bus conductors may be, for example, a split common bus conductor to which a significant load is connected.

【0033】
【発明の効果】
以上のように、請求項1に記載した発明によれば、分割共通母線導体を採用したことに
より、健全な変圧ユニットから故障した変圧ユニットに対応する負荷に電力を供給して負
荷の分割救済が行え、しかも、変圧ユニットの配電用変圧器の各容量低減が行えるので、
このように構成される配電盤を用いた受配電設備のコストを低減させることができる。
0033
【The invention's effect】
As described above, according to the invention described in claim 1, the division common bus conductor is adopted.
More negative by supplying power from a healthy transformer unit to the load corresponding to the failed transformer unit
Since the load can be divided and relieved, and the capacity of the distribution transformer of the transformer unit can be reduced.
It is possible to reduce the cost of power receiving and distributing equipment using the switchboard configured in this way.

請求項2に記載した発明によれば、負荷救済時に救済用電源を用いることにより、受配 電ユニット数及び配線用遮断器の群の数が同じ構成に対しても、他の健全な受配電ユニッ ト数の不足分が救済用電源で補えるので、故障した変圧ユニットに対応する負荷の全部に 電力を供給することができる。 According to the invention described in claim 2, by using the relief power supply at the time of load relief, even if the number of power receiving and distributing units and the number of groups of wiring breakers are the same, other sound power receiving and distributing units can be used. Since the shortage of the number of wires can be supplemented by the relief power supply, it is possible to supply power to all the loads corresponding to the failed transformer unit .

請求項3に記載した発明によれば、配線用遮断器の群の数を変圧ユニットの数から1を 差し引くことにより、変圧ユニットの配電用変圧器の各容量低減が最大になるので、この ように構成される配電盤を用いた受配電設備のコストを最大に低減させることができる。 According to the invention described in claim 3, by subtracting 1 from the number of transformer units for the number of molded case circuit breakers, the reduction in each capacity of the distribution transformer of the transformer unit is maximized . The cost of power receiving and distribution equipment using the switchboard configured in can be reduced to the maximum.

請求項4に記載した発明によれば、母線接続導体を収納体からはみ出すように接続した ことにより、負荷救済用ケーブルが容易に接続されるので、負荷救済作業が簡素化できる According to the fourth aspect of the present invention, the load relief cable is easily connected by connecting the bus connecting conductor so as to protrude from the housing, so that the load relief work can be simplified .

請求項5に記載の発明によれば、導体接続用ボルト貫通孔を負荷救済用ケーブルの接続 に兼用したことにより、貫通孔の数が減るので、孔開け作業が簡素化できる。 According to the fifth aspect of the present invention, since the number of through holes is reduced by using the conductor connection bolt through holes for connecting the load relief cable, the drilling work can be simplified.

Claims (5)

2つ以上の変圧ユニットにそれぞれ接続されて前記変圧ユニットと同数により構成されると共に、それぞれ複数個の配線用遮断器を有する配電盤において、
前記複数個の配線用遮断器を2つ以上の群に分け、前記群に分けられた前記配線用遮断器の1次側が前記群に対応して設けられた分割共通母線導体にそれぞれ接続され、
通常時は隣接する前記分割共通母線導体間が母線接続導体により接続され、各変圧ユニットから前記各変圧ユニットに対応して設けられている前記分割共通母線導体に接続される負荷に電力を供給し、
負荷救済時は故障した変圧ユニットに対応して設けられている前記分割共通母線導体同士が切り離され、前記切り離された分割共通母線導体が少なくとも他の変圧ユニットに電気的に接続されて前記他の変圧ユニットから前記故障した変圧ユニットに対応する負荷に電力を供給するように構成された配電盤。
In a switchboard connected to two or more transformer units and configured by the same number as the transformer units, and having a plurality of circuit breakers for each,
The plurality of wiring breakers are divided into two or more groups, and the primary sides of the wiring breakers divided into the groups are respectively connected to divided common bus conductors provided corresponding to the groups,
Under normal conditions, the divided common bus conductors adjacent to each other are connected by a bus connecting conductor, and power is supplied from each transformation unit to loads connected to the divided common bus conductors provided corresponding to the respective transformation units. ,
At the time of load relief, the divided common bus conductors provided corresponding to the failed transformer unit are separated from each other, and the separated divided common bus conductors are electrically connected to at least another transformer unit, and the other parts are separated. A switchboard configured to supply power from a transformer unit to a load corresponding to the failed transformer unit.
前記負荷救済時に前記分割共通母線導体が救済用電源に電気的に接続されて前記救済用電源から前記故障した変圧ユニットに対応する負荷に電力を供給するように構成された請求項1に記載の配電盤。2. The apparatus according to claim 1, wherein the divided common bus conductor is electrically connected to the power supply for repair at the time of the load repair, and power is supplied from the power supply for repair to the load corresponding to the failed transformer unit. switchboard. 前記配線用遮断器の群の数は前記変圧ユニットの数から1を差し引いたものである請求項1または2に記載の配電盤。The switchboard according to claim 1 or 2, wherein the number of the group of circuit breakers is the number of the transformer units minus one. 前記母線接続導体は、前記配線用遮断器を収容する収納体からはみ出すように負荷救済時に接続し直される請求項1ないし3のいずれか1項に記載の配電盤。The switchboard according to any one of claims 1 to 3, wherein the busbar connecting conductor is reconnected at the time of load relief so as to protrude from a housing that accommodates the wiring breaker. 前記母線接続導体は、前記分割共通母線導体とボルトにより締め付けて接続するための導体接続用ボルト貫通孔が設けられ、前記導体接続用ボルト貫通孔が負荷救済時に負荷救済用ケーブルの接続に兼用される請求項1ないし4のいずれか1項に記載の配電盤。The bus connecting conductor is provided with a conductor connecting bolt through hole for fastening and connecting the divided common bus conductor with a bolt, and the conductor connecting bolt through hole is also used for connection of a load relief cable at the time of load relief. The switchboard according to any one of claims 1 to 4.
JP2003023142A 2003-01-31 2003-01-31 Distribution board and its operation method Expired - Fee Related JP3699455B2 (en)

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JP2004236453A5 true JP2004236453A5 (en) 2005-04-28
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4674855B2 (en) * 2005-06-29 2011-04-20 日東工業株式会社 Wire lead-in structure to the housing
GB2446841A (en) * 2007-02-26 2008-08-27 Prem Singh Split load distribution board/consumer unit
CN103474887B (en) * 2013-09-03 2015-01-28 国网浙江绍兴市上虞区供电公司 Street lamp control cabinet erected on ground
JP7382891B2 (en) 2020-04-17 2023-11-17 三菱電機株式会社 DC switchboard
WO2024057862A1 (en) * 2022-09-15 2024-03-21 株式会社村田製作所 Power system

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