CN103915886A - Uninterruptible power supply maintaining bypass device and uninterruptible power supply system - Google Patents
Uninterruptible power supply maintaining bypass device and uninterruptible power supply system Download PDFInfo
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- CN103915886A CN103915886A CN201410127233.8A CN201410127233A CN103915886A CN 103915886 A CN103915886 A CN 103915886A CN 201410127233 A CN201410127233 A CN 201410127233A CN 103915886 A CN103915886 A CN 103915886A
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Abstract
The invention discloses an uninterruptible power supply maintaining bypass device. A first breaker, a second breaker and a third breaker can be three single-pole breakers, or the first breaker is a single-pole breaker, the second breaker and the third breaker are a first switch circuit and a second switch circuit of a double-pole breaker, the using numbers of double-pole breakers is reduced, and accordingly maintaining bypass cost is lowered. Through a hot-pluggable connector, the hot-plug function of the uninterruptible power supply maintaining bypass device and an uninterruptible power supply is achieved, and accordingly on-line maintaining can be carried out on the uninterruptible power supply. The using number of the double-pole breakers is reduced, so that a maintaining bypass is small in occupied space and can be easily integrated into a UPS machine case, and accordingly machine frame space is saved.
Description
Technical Field
The invention relates to the technical field of power systems, in particular to an uninterruptible power supply maintenance bypass device and an uninterruptible power supply system.
Background
Uninterruptible Power Supplies (UPSs) are important external devices that can provide a continuous, stable, uninterrupted Power supply to a load. Since the UPS needs to be powered off when the UPS is replaced or maintained, but the load connected to the UPS needs to be protected from power interruption, a maintenance bypass component needs to be provided for the UPS in order to protect the load from power interruption when the UPS is replaced or maintained.
One implementation of a maintenance bypass that is commonly used at present is to configure a maintenance bypass cabinet outside the UPS. The structure of the maintenance bypass cabinet and the connection relationship between the maintenance bypass cabinet and the UPS are shown in fig. 1, the maintenance bypass cabinet shown in fig. 1 includes 3 bipolar breakers (i.e., K1, K2, and K3 in fig. 1), and when the UPS needs to be maintained, K2 is closed and K1 and K3 are opened in sequence, so that when the UPS is powered off, the load is not powered off, that is, the UPS is replaced or maintained online.
However, in the process of implementing the present invention, the inventor finds that the number of bipolar breakers required by the current implementation of the maintenance bypass assembly is large, so that the implementation cost of the maintenance bypass is high.
Disclosure of Invention
The invention aims to provide an uninterruptible power supply maintenance bypass device to reduce maintenance bypass cost.
In order to achieve the purpose, the invention provides the following technical scheme:
an uninterruptible power supply maintenance bypass device is connected with an uninterruptible power supply through a hot-pluggable connector, the hot-pluggable connector comprises a first connecting panel and a second connecting panel which are in hot-pluggable connection, and the second connecting panel is connected with a mains supply input end of the uninterruptible power supply and an output end of the uninterruptible power supply; the uninterruptible power supply maintenance bypass device comprises: a wire bank and the first connection panel; wherein,
the first wiring end of the wiring bar is connected with the first wiring end of the first connecting panel through a first circuit breaker to form a first mains supply input channel of the uninterruptible power supply, and the first wiring end of the wiring bar is also used for being connected with a first output end of a mains supply;
the second wiring end of the wiring bar is connected with the second wiring end of the first connecting panel to form a second mains supply input channel of the uninterruptible power supply, and the second wiring end of the wiring bar is also used for being connected with a second output end of the mains supply;
the third terminal of the line bank is connected with the third terminal of the first connecting panel to form a first output channel of the uninterruptible power supply, and the third terminal of the line bank is also used for being connected with a first input end of a load;
the fourth terminal of the line bank is connected with the fourth terminal of the first connection panel to form a second output channel of the uninterruptible power supply, and the fourth terminal of the line bank is also used for being connected with a second input end of a load;
the first terminal of the wiring bank is connected with the third terminal of the first connecting panel through a second circuit breaker;
the second terminal of the terminal block is connected to the fourth terminal of the first connection panel through a third circuit breaker.
Above-mentioned uninterrupted power source maintains bypass device, it is preferred, uninterrupted power source is single-phase input uninterrupted power source, the first wiring end of line bank is used for linking to each other with the live wire output of commercial power, the second wiring end of line bank is used for linking to each other with the zero line output of commercial power.
Above-mentioned uninterrupted power source maintains bypass device, it is preferred, uninterrupted power source is three-phase input uninterrupted power source, the terminal block still includes: a sixth terminal and a seventh terminal;
the sixth wiring end of the wiring bar is connected with the sixth wiring end of the first connection panel to form a third commercial power input channel of the uninterruptible power supply, and the sixth wiring end of the wiring bar is also used for being connected with a third output end of the commercial power;
the seventh wiring end of the wiring bar is connected with the seventh wiring end of the first connecting panel to form a fourth commercial power input channel of the uninterruptible power supply, and the seventh wiring end of the wiring bar is also used for being connected with a fourth output end of the commercial power;
the first wiring end of the wiring bar is used for being connected with the first live wire output end of commercial power, the second wiring end of the wiring bar is used for being connected with the zero line output end of the commercial power, the sixth wiring end of the wiring bar is used for being connected with the second live wire output end of the commercial power, and the seventh wiring end of the wiring bar is used for being connected with the third live wire output end of the commercial power.
In the above ups maintenance bypass device, preferably, the sixth terminal of the connection bank is connected to the sixth terminal of the first connection panel through a fourth circuit breaker;
and the seventh terminal of the wiring bar is connected with the seventh terminal of the first connecting panel through a fifth circuit breaker.
Preferably, the first circuit breaker is a first switch circuit of a three-pole circuit breaker, the fourth circuit breaker is a second switch circuit of the three-pole circuit breaker, and the fifth circuit breaker is a third switch circuit of the three-pole circuit breaker.
The bypass device for maintaining the uninterruptible power supply is preferably configured such that the first circuit breaker is a single-pole circuit breaker, the second circuit breaker is a first switch circuit of a bipolar circuit breaker, and the third circuit breaker is a second switch circuit of the bipolar circuit breaker.
Above-mentioned uninterrupted power source maintains bypass device, preferably, but hot plug connector is aviation connector, be provided with a plurality of jacks on hot plug connector's the first connection panel, be provided with a plurality of contact pins on but plug connector's the second connection panel, perhaps, be provided with a plurality of contact pins on but hot plug connector's the first connection panel, but be provided with a plurality of holes on but plug connector's the second connection panel, contact pin and jack one-to-one setting.
The above uninterruptible power supply maintenance bypass device preferably further includes:
and the wiring bar, the first connecting panel, each circuit breaker and the connecting wires among the circuit breakers are all packaged in the packaging shell.
An uninterruptible power supply system comprising: a single phase input ups and a ups maintenance bypass apparatus as described above.
In the above uninterruptible power supply system, preferably, the uninterruptible power supply maintenance bypass device further includes: the wiring bar, the first connecting panel, the circuit breakers and connecting lines among the circuit breakers are all packaged in the packaging shell;
the uninterruptible power supply maintenance bypass device is arranged in the case of the single-phase input uninterruptible power supply and is detachably connected with the case of the single-phase input uninterruptible power supply.
An uninterruptible power supply system comprising: three-phase input uninterrupted power source and uninterrupted power source maintain bypass device.
In the above uninterruptible power supply system, preferably, the uninterruptible power supply maintenance bypass device further includes:
the wiring bar, the first connecting panel, the circuit breakers and connecting lines among the circuit breakers are all packaged in the packaging shell;
the uninterrupted power supply maintenance bypass device is arranged in the case of the three-phase input uninterrupted power supply and is detachably connected with the case of the three-phase input uninterrupted power supply. .
According to the scheme, the utility model provides a bypass device is maintained to uninterrupted power source, first circuit breaker, second circuit breaker and third circuit breaker can be three single-pole circuit breaker, perhaps, first circuit breaker is single-pole circuit breaker, realizes by a bipolar circuit breaker the second circuit breaker with the function of third circuit breaker has reduced bipolar circuit breaker's use number to reduce the cost of maintaining the bypass, and, through the hot plug connector, realized uninterrupted power source and maintained the hot plug function between bypass device and uninterrupted power source, thereby can carry out online maintenance to uninterrupted power source. Moreover, because the usage amount of the bipolar circuit breaker is reduced, the space occupied by the maintenance bypass is reduced, the bipolar circuit breaker is easy to integrate into the UPS case, and therefore the space of a rack can be saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an uninterruptible power supply maintenance bypass cabinet in the prior art;
fig. 2 is a schematic structural diagram of an ups maintenance bypass apparatus according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of an uninterruptible power supply maintenance bypass device according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of an uninterruptible power supply maintenance bypass device according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of an uninterruptible power supply maintenance bypass device according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a first connection panel and a second connection panel of a hot-pluggable connector provided in an embodiment of the present application;
fig. 7 is a schematic overall structure diagram of an encapsulated ups maintenance bypass apparatus according to an embodiment of the present disclosure;
fig. 8 is a schematic diagram of an overall structure of an ups integrated with an ups maintenance bypass apparatus according to an embodiment of the present disclosure.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be practiced otherwise than as specifically illustrated.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the embodiment of the present application, a hot-pluggable connector is introduced to implement a hot-pluggable function between a maintenance bypass device and a UPS, where the hot-pluggable connector includes a first connection panel and a second connection panel that are hot-pluggable, and the second connection panel is connected to a mains input of the UPS and an output of the UPS, that is, in the embodiment of the present application, the second connection panel is disposed on a side of the UPS, and the first connection panel is disposed on a side of the UPS maintenance bypass device;
referring to fig. 2, fig. 2 is a schematic structural diagram of an ups maintenance bypass apparatus according to an embodiment of the present disclosure, which may include:
a terminal row 11 and a first connection panel 12 of a hot-pluggable connector; wherein,
the first terminal a1 of the line bank 11 is connected to the first terminal b1 of the first connection panel 12 through the first circuit breaker 13 to form a first commercial power input channel of the ups, and the first terminal of the line bank is further used for being connected to a first output end of the commercial power;
the first mains input channel may be a live input channel of mains.
The second terminal a2 of the line bank 11 is connected to the second terminal b2 of the first connection panel 12 to form a second commercial power input channel of the ups, and the second terminal of the line bank is further used for connecting to a second output terminal of the commercial power;
the second mains supply input channel can be a zero line input channel of mains supply.
The third terminal a3 of the terminal block 11 is connected to the third terminal b3 of the first connection panel 12 to form a first output channel of the ups, and the third terminal of the terminal block is further configured to be connected to a first input terminal of a load;
the fourth terminal a4 of the terminal block 11, which is connected to the fourth terminal b4 of the first connection panel 12 and forms a second output channel of the ups, is also adapted to be connected to a second input of a load.
The first terminal a1 of the terminal block 11 is connected to the third terminal b3 of the first connection panel 12 through the second circuit breaker 14;
that is, the first terminal a1 of the bank 11 is connected to a common terminal of the third terminal a3 of the bank 11 and the third terminal b3 of the first connection panel 12 through the second circuit breaker 14.
The second terminal a2 of the terminal block 11 is connected to the fourth terminal b4 of the first connection panel 12 through a third circuit breaker 15.
That is, the second terminal a2 of the terminal block 11 is connected to the common terminal of the fourth terminal a4 of the terminal block 11 and the fourth terminal b4 of the first connection panel 12 through the third circuit breaker 15.
When the power supply is used, a first terminal a1 of the wiring bar 11 is connected with a live wire of commercial power input, a second terminal a2 of the wiring bar is connected with a zero wire of the commercial power input, and a third terminal a3 and a fourth terminal a4 of the wiring bar are connected with a load;
when the first connection panel 12 and the second connection panel of the hot-pluggable connector are connected, the first terminal b1 of the first connection panel 12 is connected to the live input of the ups, the second terminal b2 of the first connection panel 12 is connected to the neutral input of the ups, the third terminal b3 of the first connection panel 12 is connected to the first output of the ups, and the fourth terminal b4 of the first connection panel 12 is connected to the second output of the ups.
When the uninterruptible power supply supplies power normally, the first circuit breaker 13 is in a closed state, and the second circuit breaker 14 and the third circuit breaker 15 are both in an open state; at this time, the commercial power enters the uninterruptible power supply through the first circuit breaker 13 and the hot-pluggable connector, and the current output after the processing of the uninterruptible power supply is output to the load through the hot-pluggable connector;
when the uninterruptible power supply needs to be maintained, the first circuit breaker 13 is disconnected, the second circuit breaker 14 and the third circuit breaker 15 are closed, and the first connecting panel 12 and the second connecting panel of the hot-pluggable connector are separated; at this time, the commercial power is directly output to the load through the second breaker 14 and the third breaker 15 without passing through the uninterruptible power supply, thereby realizing online maintenance of the UPS.
The embodiment of the application provides a pair of uninterrupted power source maintains bypass device on line, first circuit breaker, second circuit breaker and third circuit breaker can be three single-pole circuit breaker, perhaps, first circuit breaker is single-pole circuit breaker, is realized by a bipolar circuit breaker the second circuit breaker with the function of third circuit breaker has reduced bipolar circuit breaker's use number to reduce the cost of maintaining the bypass, and, through the hot plug connector, realized uninterrupted power source and maintained the hot plug function between bypass device and uninterrupted power source, thereby can carry out online maintenance to uninterrupted power source. Moreover, because the usage amount of the bipolar circuit breaker is reduced, the space occupied by the maintenance bypass is reduced, the bipolar circuit breaker is easy to be integrated into the UPS case, and the space of a rack can be saved
On the basis of the embodiment shown in fig. 2, another schematic structural diagram of the uninterruptible power supply maintenance bypass device provided in the embodiment of the present application is shown in fig. 3, and may further include:
the fifth terminal a5 of the terminal block 11 is connected to the fifth terminal b5 of the first connection panel 12 to form a ground input channel of the ups;
in the embodiment of the present application, a ground wire channel is further disposed in the UPS maintenance bypass device, and when the first connection panel 12 and the second connection panel of the hot-pluggable connector are connected, the fifth terminal b5 of the first connection panel 12 is connected to the ground wire input of the UPS, so as to avoid the danger that the user is shocked when the electrical leakage occurs.
In the above embodiment, the ups maintenance bypass apparatus may be adapted to a single-input single-output ups (i.e., a single-phase input ups) power system, and at this time, the first terminal of the connection bar is used to connect to the live wire output of the utility power, and the second terminal of the connection bar is used to connect to the zero line output of the utility power.
In the above embodiment, the ups maintenance bypass apparatus provided by the embodiment of the present application may be further applicable to a three-in single-out ups (i.e., a three-phase input ups) power system, and based on the embodiment shown in fig. 1 or fig. 2, a schematic structural diagram of the ups maintenance bypass apparatus provided by the embodiment of the present application is shown in fig. 4, where the connection bank may further include: a sixth terminal a6 and a seventh terminal a 7;
the sixth terminal a6 of the line bank 11 is connected to the sixth terminal b6 of the first connection panel 12 to form a third commercial power input channel of the ups, and the sixth terminal of the line bank is further used for connecting to a third output terminal of the commercial power;
the third mains input channel may be a second phase live line input channel of a three-phase mains.
The seventh terminal a7 of the line bank 11 is connected to the seventh terminal b7 of the first connection panel 12 to form a fourth mains input channel of the ups, and is further adapted to be connected to a fourth output of the mains.
The fourth mains input channel may be a third phase live input channel of a three-phase mains.
In the embodiment of the present application, the first terminal a1 of the connection bank 11 is connected to the first terminal b1 of the first connection panel 12 through the first circuit breaker 13, so as to form a first commercial power input channel of the ups;
in this application embodiment, the three-phase live wire is inputed to uninterrupted power source through different commercial power input channel. Since the internal bypass output of the UPS (e.g. bypass output 3 in UPS in fig. 4) may be connected to any phase of the mains input of the UPS, in this embodiment, the first mains input channel may be the same mains input channel as the mains input connected to the internal bypass output of the UPS. For example, when the bypass output 3 in the UPS is connected to the L1 phase input of the utility power of the UPS, the first utility power input channel is an L1 phase input channel of the utility power, that is, the first connection port of the connection bank is used to connect to the L1 phase output of the utility power; if the bypass output 3 in the UPS is connected to the L2 phase input of the utility power of the UPS, the first utility power input channel is the L2 phase input channel of the utility power, i.e., the first connection port of the connection bank is used to connect to the L2 phase output of the utility power.
In the embodiment of the application, four commercial power input channels are arranged in the uninterruptible power supply maintenance bypass device, and the uninterruptible power supply bypass device comprises three live wire input channels and one zero wire input channel, so that the bypass maintenance of an uninterruptible power supply with three inlets and one outlet can be realized.
When the power supply is used, a first terminal a1 of the connection bar 11 is connected with a first phase live wire L1 of mains supply input, a sixth terminal a6 of the connection bar 11 is connected with a second phase live wire L2 of mains supply input, and a seventh terminal a7 of the connection bar 11 is connected with a third phase live wire L3 of mains supply input; the second terminal a2 of the wiring bar is connected with the zero line N of the commercial power input, and the third terminal a3 and the fourth terminal a4 of the wiring bar 11 are connected with the load;
when the first connection panel 12 and the second connection panel of the hot-pluggable connector are connected, the first terminal b1 of the first connection panel 12 is connected to the first phase live input terminal of the ups, the sixth terminal b6 of the first connection panel 12 is connected to the second phase live input terminal of the ups, the seventh terminal b7 of the first connection panel 12 is connected to the third phase live input terminal of the ups, the second terminal b2 of the first connection panel 12 is connected to the neutral input terminal of the ups, the third terminal b3 of the first connection panel 12 is connected to the first output terminal of the ups, and the fourth terminal b4 of the first connection panel 12 is connected to the second output terminal of the ups.
When the uninterruptible power supply supplies power normally, the first circuit breaker 13 is in a closed state, and the second circuit breaker 14 and the third circuit breaker 15 are both in an open state; at this time, the commercial power enters the uninterruptible power supply through the first circuit breaker 13 and the hot-pluggable connector, and the current output after the processing of the uninterruptible power supply is output to the load through the hot-pluggable connector;
when the uninterruptible power supply needs to be maintained, the first circuit breaker 13 is disconnected, the second circuit breaker 14 and the third circuit breaker 15 are closed, and the first connecting panel 12 and the second connecting panel of the hot-pluggable connector are separated; at this time, the commercial power is directly output to the load through the second breaker 14 and the third breaker 15 without passing through the uninterruptible power supply, thereby realizing online maintenance of the UPS.
On the basis of the embodiment shown in fig. 1 or fig. 2, a schematic structural diagram of a maintenance bypass device of an uninterruptible power supply provided in the embodiment of the present application is shown in fig. 5, where the uninterruptible power supply is a three-phase input uninterruptible power supply, and the line bank may further include: a sixth terminal a6 and a seventh terminal a 7;
the sixth terminal a6 of the line bank 11 is connected to the sixth terminal b6 of the first connection panel 12 through the fourth circuit breaker 16 to form a third utility power input channel of the ups, and the sixth terminal of the line bank is further used for connecting to a third output terminal of the utility power;
the third mains input channel may be a second phase live line input channel of a three-phase mains.
The seventh terminal a7 of the line bank 11 is connected to the seventh terminal b7 of the first connection panel 12 via a fifth circuit breaker 17, forming a fourth mains input channel of the ups, said seventh terminal of the line bank being further adapted to be connected to a fourth output of the mains.
The fourth mains input channel may be a third phase live input channel of a three-phase mains.
In the embodiment of the present application, the first terminal a1 of the connection bank 11 is connected to the first terminal b1 of the first connection panel 12 through the first circuit breaker 13, so as to form a first commercial power input channel of the ups;
the first mains input channel may be a first phase live line input channel of a three-phase mains.
The first mains input channel may be a first phase live line input channel of a three-phase mains. Wherein, first looks live wire input channel can be the input channel of any looks live wire in the three-phase live wire, and the three-phase live wire is inputed to uninterrupted power source through different live wire input channel.
In the embodiment of the application, four commercial power input channels are arranged in the uninterruptible power supply maintenance bypass device, and the uninterruptible power supply maintenance bypass device comprises three live wire input channels and one zero wire input channel, and is suitable for an uninterruptible power supply power system with three inlets and one outlet.
When the power supply is used, a first terminal a1 of the connection bar 11 is connected with a first phase live wire L1 of mains supply input, a sixth terminal a6 of the connection bar 11 is connected with a second phase live wire L2 of mains supply input, and a seventh terminal a7 of the connection bar 11 is connected with a third phase live wire L3 of mains supply input; the second terminal a2 of the wiring bar is connected with the zero line N of the commercial power input, and the third terminal a3 and the fourth terminal a4 of the wiring bar 11 are connected with the load;
when the first connection panel 12 and the second connection panel of the hot-pluggable connector are connected, the first terminal b1 of the first connection panel 12 is connected to the first phase live input terminal of the ups, the sixth terminal b6 of the first connection panel 12 is connected to the second phase live input terminal of the ups, the seventh terminal b7 of the first connection panel 12 is connected to the third phase live input terminal of the ups, the second terminal b2 of the first connection panel 12 is connected to the neutral input terminal of the ups, the third terminal b3 of the first connection panel 12 is connected to the first output terminal of the ups, and the fourth terminal b4 of the first connection panel 12 is connected to the second output terminal of the ups.
When the uninterruptible power supply normally supplies power (i.e., when the uninterruptible power supply is in an inversion operating state), the first circuit breaker 13, the fourth circuit breaker 16 and the fifth circuit breaker 17 are all in a closed state, and the second circuit breaker 14 and the third circuit breaker 15 are all in an open state; at this time, the commercial power enters the uninterruptible power supply through the first circuit breaker 13 and the hot-pluggable connector, and the current output after the processing of the uninterruptible power supply is output to the load through the hot-pluggable connector;
when the uninterruptible power supply needs to be maintained (i.e. when in a maintenance bypass state), the first circuit breaker 13, the fourth circuit breaker 16 and the fifth circuit breaker 17 are opened, the second circuit breaker 14 and the third circuit breaker 15 are closed, and the first connection panel 12 and the second connection panel of the hot-pluggable connector are separated; at this time, the commercial power is directly output to the load through the second breaker 14 and the third breaker 15 without passing through the uninterruptible power supply, thereby realizing online maintenance of the UPS.
In the above embodiment, it is preferable that the first circuit breaker 13 is a first switching circuit of a three-pole circuit breaker, the fourth circuit breaker 16 is a second switching circuit of the three-pole circuit breaker, and the fifth circuit breaker 17 is a third switching circuit of the three-pole circuit breaker, for convenience of operation.
That is, in the embodiment of the present application, the functions of the first circuit breaker 13, the fourth circuit breaker 16, and the fifth circuit breaker 17 may be implemented by one three-pole circuit breaker, that is, the first circuit breaker 13, the fourth circuit breaker 16, and the fifth circuit breaker 17 are replaced by one three-pole circuit breaker.
In the above embodiment, preferably, the second circuit breaker 14 is a first switching circuit of a bipolar circuit breaker, and the third circuit breaker 15 is a second switching circuit of the bipolar circuit breaker.
That is to say, in the embodiment of the present application, the functions of the second circuit breaker 13 and the third circuit breaker 15 can be realized by one bipolar circuit breaker, that is, the second circuit breaker 13 and the third circuit breaker 15 are replaced by one bipolar circuit breaker.
In the above embodiments, preferably, the hot-pluggable connector provided in the embodiments of the present application may be an aviation connector, the aviation connector is specially designed for a module power supply, and an advanced single-blade rotary hyperbolic wire spring jack or a crown spring jack is used as a contact element, so that the hot-pluggable connector has high dynamic contact reliability. The crown spring jack has a smooth arc contact surface, the plugging and pulling is soft, the maximum contact surface is guaranteed, the contact resistance is low, the temperature rise is small, and the anti-seismic capacity is high. Fig. 6 shows a schematic structural diagram of the first connection panel and the second connection panel of the aircraft connector, where the first connection panel P1 is a female connector of the aircraft connector, and is provided with a plurality of jacks, such as crown spring jacks, which can prevent fingers from getting electric shock. The second connecting panel P2 of the aviation connector is a male connector of the aviation connector, a plurality of contact pins are arranged on the male connector, the contact pins and the jacks are arranged in a one-to-one correspondence manner, namely, one contact pin is inserted into one jack to be well coupled to form a sub-connector to support hot plug; in the embodiment of the application, the rated current of the selected aviation connector can be 75A.
In the foregoing embodiment, preferably, the uninterruptible power supply maintenance bypass device may further include:
and the wiring bar, the first connecting panel, each circuit breaker and the connecting wires among the circuit breakers are all packaged in the packaging shell.
In order to separate the ups maintenance bypass device from the ups, the ups maintenance bypass device may be packaged by a housing, and an overall structural schematic diagram of the packaged ups maintenance bypass device according to an embodiment of the present application is shown in fig. 7. In fig. 7, component 71 is a first connection panel of a hot-pluggable connector, component 72 is a terminal block, component 73 is a first circuit breaker, and component 74 is two single-pole circuit breakers or one double-pole circuit breaker.
An uninterruptible power supply system provided in an embodiment of the present application may refer to fig. 2, and a schematic structural diagram of the uninterruptible power supply system provided in the embodiment of the present application may include:
an Uninterruptible Power Supply (UPS) and an UPS maintenance bypass device; the uninterruptible power supply is a single-input single-output uninterruptible power supply (namely a single-phase input uninterruptible power supply), and the uninterruptible power supply is connected with the uninterruptible power supply bypass maintenance bypass device through a hot-pluggable connector; the hot-pluggable connector comprises a first connecting panel and a second connecting panel which are connected in a hot-pluggable mode; the second connecting panel is connected with a commercial power input end of the uninterruptible power supply and an output end of the uninterruptible power supply;
the UPS comprises a UPS rectifier, an inverter module and a relay, wherein the input of the UPS rectifier and the inverter module is connected with commercial power, the inversion output of the UPS rectifier and the inverter module is single-phase output, the zero line output of the UPS rectifier and the inverter module is directly connected with a hot-pluggable connector, the live wire output of the UPS rectifier and the inverter module is connected with the normally open end 2 of the relay, the normally closed end 3 of the relay is connected with one-phase input live wire, and the fixed end 1 of the relay is directly connected with the hot-pluggable connector;
the working state of the uninterruptible power supply system comprises an inversion working state, an internal bypass state and a maintenance bypass state, and the specific states are as follows:
inversion working state: the first breaker 13 is closed and the second 14 and third 15 breakers are opened; the first connection panel P1 and the second connection panel P2 of the hot-pluggable connector are tightly combined, commercial power enters the uninterruptible power supply through the first circuit breaker 13, the first connection panel P1 and the second connection panel P2, standard sine waves are output after passing through the UPS rectifier and the inverter module and are output to the relay (at the moment, the dynamic contact of the relay is switched to the normally open end 2, the fixed end 1 of the relay is communicated with the normally open end 2), and the inverter output is sent to a load through the hot-pluggable connector.
Internal bypass state: the first breaker 13 is closed and the second 14 and third 15 breakers are opened; the first connection panel P1 and the second connection panel P2 of the hot-pluggable connector are tightly combined, and the commercial power enters the uninterruptible power supply through the first circuit breaker 13, the first connection panel P1 and the second connection panel P2, at this time, the dynamic contact of the relay is switched to the normally closed end 3, the fixed end 1 of the relay is communicated with the normally closed end 3, and at this time, the commercial power is directly transmitted to the load through the relay and the hot-pluggable connector without passing through the UPS rectifier and the inverter module.
Maintaining the bypass state: the first breaker 13 is open, the second breaker 14 and the third breaker 15 are closed; the first connection panel P1 and the second connection panel P2 of the hot-pluggable connector are separated, and the commercial power is directly outputted to the load through the second breaker 14 and the third breaker 15.
The uninterruptible power supply maintenance bypass device comprises: a terminal block 11 and said first connection panel 12; wherein,
the first terminal a1 of the line bank 11 is connected to the first terminal b1 of the first connection panel 12 through the first circuit breaker 13 to form a first commercial power input channel of the ups, and the first terminal of the line bank is further used for being connected to a first output end of the commercial power;
the first mains input channel may be a live input channel of mains.
The second terminal a2 of the line bank 11 is connected to the second terminal b2 of the first connection panel 12 to form a second commercial power input channel of the ups, and the second terminal of the line bank is further used for connecting to a second output terminal of the commercial power;
the second mains supply input channel can be a zero line input channel of mains supply.
The third terminal a3 of the terminal block 11 is connected to the third terminal b3 of the first connection panel 12 to form a first output channel of the ups, and the third terminal of the terminal block is further configured to be connected to a first input terminal of a load;
the fourth terminal a4 of the terminal block 11, which is connected to the fourth terminal b4 of the first connection panel 12 and forms a second output channel of the ups, is also adapted to be connected to a second input of a load.
The first terminal a1 of the terminal block 11 is connected to the third terminal b3 of the first connection panel 12 through the second circuit breaker 14;
that is, the first terminal a1 of the bank 11 is connected to a common terminal of the third terminal a3 of the bank 11 and the third terminal b3 of the first connection panel 12 through the second circuit breaker 14.
The second terminal a2 of the terminal block 11 is connected to the fourth terminal b4 of the first connection panel 12 through a third circuit breaker 15.
That is, the second terminal a2 of the terminal block 11 is connected to the common terminal of the fourth terminal a4 of the terminal block 11 and the fourth terminal b4 of the first connection panel 12 through the third circuit breaker 15.
When first connection panel with when second connection panel is connected, first connection panel's first wiring end with uninterrupted power source's first commercial power input end is connected, first connection panel's second wiring end with uninterrupted power source's second commercial power input end is connected, first connection panel's third wiring end with uninterrupted power source's first output is connected, first connection panel's fourth wiring end with uninterrupted power source's second output is connected.
The fifth terminal a5 of the terminal block 11 is connected to the fifth terminal b5 of the first connection panel 12 to form a ground input channel of the ups;
in the embodiment of the present application, a ground wire channel is further disposed in the UPS maintenance bypass device, and when the first connection panel 12 and the second connection panel of the hot-pluggable connector are connected, the fifth terminal b5 of the first connection panel 12 is connected to the ground wire input of the UPS, so as to avoid the danger that the user is shocked when the electrical leakage occurs.
In the foregoing embodiment, the ups is a single-input single-output ups, a schematic structural diagram of another ups system provided in the embodiment of the present application is shown in fig. 4, in the embodiment shown in fig. 4, the ups is a three-input single-output ups (a three-phase input ups), and preferably, on the basis of the embodiment shown in fig. 2, the connection bank 11 further includes: a sixth terminal a6 and a seventh terminal a 7;
the sixth terminal a6 of the line bank 11 is connected to the sixth terminal b6 of the first connection panel 12 to form a third commercial power input channel of the ups, and the sixth terminal of the line bank is further used for connecting to a third output terminal of the commercial power;
the third mains input channel may be a second phase live line input channel of a three-phase mains.
The seventh terminal a7 of the line bank 11 is connected to the seventh terminal b7 of the first connection panel 12 to form a fourth mains input channel of the ups, and is further adapted to be connected to a fourth output of the mains.
The fourth mains input channel may be a third phase live input channel of a three-phase mains.
In the embodiment of the present application, the first terminal a1 of the connection bank 11 is connected to the first terminal b1 of the first connection panel 12 through the first circuit breaker 13, so as to form a first commercial power input channel of the ups;
the first mains input channel may be a first phase live line input channel of a three-phase mains.
In the embodiment of the application, four commercial power input channels are arranged in the uninterruptible power supply maintenance bypass device, and the uninterruptible power supply maintenance bypass device comprises three live wire input channels and one zero wire input channel, and is suitable for an uninterruptible power supply power system with three inlets and one outlet.
Another schematic structural diagram of an uninterruptible power supply system provided in the embodiment of the present application is shown in fig. 5, in the embodiment shown in fig. 5, the uninterruptible power supply is a three-input single-output uninterruptible power supply (a three-phase input uninterruptible power supply), and preferably, on the basis of the embodiment shown in fig. 2, the connection bank 11 may further include: a sixth terminal a6 and a seventh terminal a 7;
the sixth terminal a6 of the line bank 11 is connected to the sixth terminal b6 of the first connection panel 12 through the fourth circuit breaker 16 to form a third utility power input channel of the ups, and the sixth terminal of the line bank is further used for connecting to a third output terminal of the utility power;
the third mains input channel may be a second phase live line input channel of a three-phase mains.
The seventh terminal a7 of the line bank 11 is connected to the seventh terminal b7 of the first connection panel 12 via a fifth circuit breaker 17, forming a fourth mains input channel of the ups, said seventh terminal of the line bank being further adapted to be connected to a fourth output of the mains.
The fourth mains input channel may be a third phase live input channel of a three-phase mains.
When the first connection panel is connected with the second connection panel, a sixth wiring terminal of the first connection panel is connected with a third mains supply input end of the uninterruptible power supply, and a seventh wiring terminal of the first connection panel is connected with a fourth mains supply input end of the uninterruptible power supply.
In the embodiment of the present application, the first terminal a1 of the connection bank 11 is connected to the first terminal b1 of the first connection panel 12 through the first circuit breaker 13, so as to form a first commercial power input channel of the ups;
the first mains input channel may be a first phase live line input channel of a three-phase mains.
In the embodiment of the application, four commercial power input channels are arranged in the uninterruptible power supply maintenance bypass device, and the uninterruptible power supply maintenance bypass device comprises three live wire input channels and one zero wire input channel, and is suitable for an uninterruptible power supply power system with three inlets and one outlet.
In the above embodiment, it is preferable that the first circuit breaker 13 is a first switching circuit of a three-pole circuit breaker, the fourth circuit breaker 16 is a second switching circuit of the three-pole circuit breaker, and the fifth circuit breaker 17 is a third switching circuit of the three-pole circuit breaker, for convenience of operation.
That is, in the embodiment of the present application, the functions of the first circuit breaker 13, the fourth circuit breaker 16, and the fifth circuit breaker 17 may be implemented by one three-pole circuit breaker, that is, the first circuit breaker 13, the fourth circuit breaker 16, and the fifth circuit breaker 17 are replaced by one three-pole circuit breaker.
In the above embodiment, preferably, the second circuit breaker 14 is a first switching circuit of a bipolar circuit breaker, and the third circuit breaker 15 is a second switching circuit of the bipolar circuit breaker.
That is to say, in the embodiment of the present application, the functions of the second circuit breaker 13 and the third circuit breaker 15 can be realized by one bipolar circuit breaker, that is, the second circuit breaker 13 and the third circuit breaker 15 are replaced by one bipolar circuit breaker.
In the above embodiments, preferably, the hot-pluggable connector provided in the embodiments of the present application may be an aviation connector, the aviation connector is specially designed for a module power supply, and an advanced single-blade rotary hyperbolic wire spring jack or a crown spring jack is used as a contact element, so that the hot-pluggable connector has high dynamic contact reliability. The crown spring jack has a smooth arc contact surface, the plugging and pulling is soft, the maximum contact surface is guaranteed, the contact resistance is low, the temperature rise is small, and the anti-seismic capacity is high. Fig. 6 shows a schematic structural diagram of the first connection panel and the second connection panel of the aircraft connector, where the first connection panel P1 is a female connector of the aircraft connector, and is provided with a plurality of jacks, such as crown spring jacks, which can prevent fingers from getting electric shock. The second connecting panel P2 of the aviation connector is a male connector of the aviation connector, a plurality of contact pins are arranged on the male connector, the contact pins and the jacks are arranged in a one-to-one correspondence manner, namely, one contact pin is inserted into one jack to be well coupled to form a sub-connector to support hot plug; in the embodiment of the application, the rated current of the selected aviation connector can be 75A.
In the foregoing embodiment, preferably, the uninterruptible power supply maintenance bypass device may further include:
and the wiring bar, the first connecting panel, each circuit breaker and the connecting wires among the circuit breakers are all packaged in the packaging shell.
In the above embodiment, preferably, the uninterruptible power supply maintenance bypass device is placed in the chassis of the uninterruptible power supply and detachably connected to the chassis of the uninterruptible power supply, so that the maintenance bypass device can be conveniently pulled out from the chassis of the uninterruptible power supply.
The uninterruptible power supply maintenance bypass device provided in the embodiment of the application occupies a small space, and can be integrated into a chassis of an uninterruptible power supply, as shown in fig. 8, fig. 8 is a schematic view of an overall structure of an uninterruptible power supply integrated with the uninterruptible power supply maintenance bypass device provided in the embodiment of the application;
the case of the uninterrupted power supply is provided with a second connecting panel of the hot-pluggable connector. The uninterrupted power supply maintenance bypass device is placed inside the uninterrupted power supply case and integrated with the uninterrupted power supply, so that the space of the frame where the uninterrupted power supply case is located does not need to be occupied, and the uninterrupted power supply maintenance bypass cabinet in the prior art needs to additionally occupy the space of the frame.
In the embodiment of the present application, the switching process of the uninterruptible power supply from the inversion operating state to the maintenance bypass state is as follows:
pressing a shutdown key of the uninterrupted power supply or setting a manual bypass mode to enable the uninterrupted power supply to enter an internal bypass state from an inversion working state;
in an internal bypass state, a fixed end 1 of the relay is communicated with a normally closed end 3; if the UPS is a single-phase input UPS, the first circuit breaker 13 is closed, and the second circuit breaker 14 and the third circuit breaker 15 are opened; if the UPS power supply is a three-phase input UPS, the first breaker 13 is closed (if the fourth breaker 16 and the fifth breaker 17 are also included, the fourth breaker 16 and the fifth breaker 17 are also closed), and the second breaker 14 and the third breaker 15 are opened;
closing the second and third circuit breakers 14 and 15, opening the first circuit breaker 13 (if a fourth and fifth circuit breaker 16 and 17 are also included, the fourth and fifth circuit breakers 16 and 17 are also simultaneously opened with the first circuit breaker 13);
disconnecting a battery breaker in an external battery cabinet of the uninterruptible power supply and pulling out a battery connector in the uninterruptible power supply;
and (4) pulling out the uninterrupted power supply maintenance bypass device, wherein the uninterrupted power supply maintenance bypass device is electrically connected and disconnected with the uninterrupted power supply, and the uninterrupted power supply is completely powered down.
The charged uninterruptible power supply maintenance bypass device is separated from the uncharged uninterruptible power supply, the uninterruptible power supply is kept still for 10 minutes, and the uninterruptible power supply can be detached from the rack for maintenance after charges stored in a capacitor in the uninterruptible power supply are released.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (12)
1. An uninterruptible power supply maintenance bypass device is characterized in that the uninterruptible power supply maintenance bypass device is connected with an uninterruptible power supply through a hot-pluggable connector, the hot-pluggable connector comprises a first connecting panel and a second connecting panel which are in hot-pluggable connection, and the second connecting panel is connected with a mains supply input end of the uninterruptible power supply and an output end of the uninterruptible power supply; the uninterruptible power supply maintenance bypass device comprises: a wire bank and the first connection panel; wherein,
the first wiring end of the wiring bar is connected with the first wiring end of the first connecting panel through a first circuit breaker to form a first mains supply input channel of the uninterruptible power supply, and the first wiring end of the wiring bar is also used for being connected with a first output end of a mains supply;
the second wiring end of the wiring bar is connected with the second wiring end of the first connecting panel to form a second mains supply input channel of the uninterruptible power supply, and the second wiring end of the wiring bar is also used for being connected with a second output end of the mains supply;
the third terminal of the line bank is connected with the third terminal of the first connecting panel to form a first output channel of the uninterruptible power supply, and the third terminal of the line bank is also used for being connected with a first input end of a load;
the fourth terminal of the line bank is connected with the fourth terminal of the first connection panel to form a second output channel of the uninterruptible power supply, and the fourth terminal of the line bank is also used for being connected with a second input end of a load;
the first terminal of the wiring bank is connected with the third terminal of the first connecting panel through a second circuit breaker;
the second terminal of the terminal block is connected to the fourth terminal of the first connection panel through a third circuit breaker.
2. The ups maintenance bypass device according to claim 1, wherein the ups is a single-phase input ups, the first terminal of the line bank is adapted to be connected to a live output of the utility power, and the second terminal of the line bank is adapted to be connected to a neutral output of the utility power.
3. The ups maintenance bypass apparatus of claim 1, wherein the ups is a three-phase input ups, the termination bank further comprising: a sixth terminal and a seventh terminal;
the sixth wiring end of the wiring bar is connected with the sixth wiring end of the first connection panel to form a third commercial power input channel of the uninterruptible power supply, and the sixth wiring end of the wiring bar is also used for being connected with a third output end of the commercial power;
the seventh wiring end of the wiring bar is connected with the seventh wiring end of the first connecting panel to form a fourth commercial power input channel of the uninterruptible power supply, and the seventh wiring end of the wiring bar is also used for being connected with a fourth output end of the commercial power;
the first wiring end of the wiring bar is used for being connected with the first live wire output end of commercial power, the second wiring end of the wiring bar is used for being connected with the zero line output end of the commercial power, the sixth wiring end of the wiring bar is used for being connected with the second live wire output end of the commercial power, and the seventh wiring end of the wiring bar is used for being connected with the third live wire output end of the commercial power.
4. The uninterruptible power supply maintenance bypass device of claim 3,
a sixth terminal of the line bank is connected to a sixth terminal of the first connection panel through a fourth circuit breaker;
and the seventh terminal of the wiring bar is connected with the seventh terminal of the first connecting panel through a fifth circuit breaker.
5. The uninterruptible power supply maintenance bypass device of claim 4, wherein the first circuit breaker is a first switching circuit of a three-pole circuit breaker, the fourth circuit breaker is a second switching circuit of the three-pole circuit breaker, and the fifth circuit breaker is a third switching circuit of the three-pole circuit breaker.
6. The uninterruptible power supply maintenance bypass device of claim 1, wherein the first circuit breaker is a single pole circuit breaker, the second circuit breaker is a first switching circuit of a bipolar circuit breaker, and the third circuit breaker is a second switching circuit of the bipolar circuit breaker.
7. The ups maintenance bypass device according to claim 1, wherein the hot-pluggable connector is an aviation connector, the first connection panel of the hot-pluggable connector is provided with a plurality of jacks, the second connection panel of the pluggable connector is provided with a plurality of pins, or the first connection panel of the hot-pluggable connector is provided with a plurality of pins, the second connection panel of the pluggable connector is provided with a plurality of holes, and the pins and the jacks are arranged in a one-to-one correspondence manner.
8. The uninterruptible power supply maintenance bypass device of any of claims 1-7, further comprising:
and the wiring bar, the first connecting panel, each circuit breaker and the connecting wires among the circuit breakers are all packaged in the packaging shell.
9. An uninterruptible power supply system, comprising: a single phase input ups and an ups maintenance bypass apparatus as claimed in any one of claims 1, 2, 6 and 7.
10. The uninterruptible power supply system of claim 9, wherein the uninterruptible power supply maintenance bypass device further comprises: the wiring bar, the first connecting panel, the circuit breakers and connecting lines among the circuit breakers are all packaged in the packaging shell;
the uninterruptible power supply maintenance bypass device is arranged in the case of the single-phase input uninterruptible power supply and is detachably connected with the case of the single-phase input uninterruptible power supply.
11. An uninterruptible power supply system, comprising: a three phase input ups and an ups maintenance bypass apparatus as claimed in any one of claims 1, 3, 4, 5, 6, 7.
12. The uninterruptible power supply system of claim 11, wherein the uninterruptible power supply maintenance bypass device further comprises:
the wiring bar, the first connecting panel, the circuit breakers and connecting lines among the circuit breakers are all packaged in the packaging shell;
the uninterrupted power supply maintenance bypass device is arranged in the case of the three-phase input uninterrupted power supply and is detachably connected with the case of the three-phase input uninterrupted power supply.
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| CN201410127233.8A CN103915886B (en) | 2014-03-31 | 2014-03-31 | Uninterrupted power supply maintenance bypass device and uninterruptible power system |
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| CN201410127233.8A CN103915886B (en) | 2014-03-31 | 2014-03-31 | Uninterrupted power supply maintenance bypass device and uninterruptible power system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443669A (en) * | 2018-09-30 | 2019-03-08 | 深圳市英威腾电源有限公司 | A kind of leakage detection method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201616703U (en) * | 2009-08-28 | 2010-10-27 | 李勋 | High-voltage frequency converter control power supply circuit uninterruptible power supplying device |
| CN102769334A (en) * | 2012-07-13 | 2012-11-07 | 深圳供电局有限公司 | Power supply spare power automatic switching device capable of realizing seamless butt joint in bypass operation process |
| CN102893491A (en) * | 2010-05-13 | 2013-01-23 | 伊顿公司 | Uniterruptible power supply systems and methods supporting high-efficiency bypassed operation with a variably available power source |
| US20130154377A1 (en) * | 2011-12-19 | 2013-06-20 | Nec Corporation | Uninterruptible power system, method of controlling power supply, and recording medium having power supply control program stored therein |
-
2014
- 2014-03-31 CN CN201410127233.8A patent/CN103915886B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201616703U (en) * | 2009-08-28 | 2010-10-27 | 李勋 | High-voltage frequency converter control power supply circuit uninterruptible power supplying device |
| CN102893491A (en) * | 2010-05-13 | 2013-01-23 | 伊顿公司 | Uniterruptible power supply systems and methods supporting high-efficiency bypassed operation with a variably available power source |
| US20130154377A1 (en) * | 2011-12-19 | 2013-06-20 | Nec Corporation | Uninterruptible power system, method of controlling power supply, and recording medium having power supply control program stored therein |
| CN102769334A (en) * | 2012-07-13 | 2012-11-07 | 深圳供电局有限公司 | Power supply spare power automatic switching device capable of realizing seamless butt joint in bypass operation process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443669A (en) * | 2018-09-30 | 2019-03-08 | 深圳市英威腾电源有限公司 | A kind of leakage detection method and device |
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| CN103915886B (en) | 2016-01-06 |
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