CN101222145A - Device and method for on-line switching uninterrupted power supply - Google Patents
Device and method for on-line switching uninterrupted power supply Download PDFInfo
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- CN101222145A CN101222145A CNA2007100363838A CN200710036383A CN101222145A CN 101222145 A CN101222145 A CN 101222145A CN A2007100363838 A CNA2007100363838 A CN A2007100363838A CN 200710036383 A CN200710036383 A CN 200710036383A CN 101222145 A CN101222145 A CN 101222145A
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Abstract
The invention discloses an on-line switching UPS device and a method thereof. An input terminal of the UPS is connected to an input power supply loop through inputting a power switch MCB2 by the UPS device, wherein, the input power supply loop is connected to the commercial power circuit through a supply line switch MCB1, an output terminal of the UPS is connected to an output power supply loop, a user facility is connected to the output power supply loop by a user load switch MCB3. The device also comprises an outer shunt circuit connected in parallel with the UPS and a set of contactors, wherein, the outer shunt circuit is connected to the input power supply loop by an outer shunt circuit switch MCB4 and is connected with the output power supply loop; a first main contact point MC1 is connected in series between the output terminal of the UPS and the output power supply loop, a second main contact point MC2 is connected in series between the outer shunt circuit switch MCB4 and the output power supply loop; the contactors are switched between the UPS and the outer shunt circuit. The technical proposal of the invention realizes that the switching way of the controller is controlled by the joint point of a relay by adopting a small number of elements such as the set of controllers, the relay and the switch and basically realizes the very quick switching. Therefore, the invention is an economic and effective UPS on-line switching mode.
Description
Technical field
The present invention relates to power system device, more particularly, relate to a kind of device and method of online switching uninterrupted power supply.
Background technology
The load that adopts the uninterrupted power supply (ups) Unity supply power mode generally be can not have a power failure, to the demanding responsible consumer of the quality of power supply.In the current supply circuit of at present domestic and international UPS device; the UPS supply power mode when the normal power supply mode is arranged; also have at electric network fault, unusual or internal bypass device when installing inner components and parts fault; its purpose mainly be protection its to install inner components and parts not impaired; as: exceed in electric power system voltage, Frequency Index that it is specified, rectification in the device, the inversion module components and parts are unusual or switch to this internal bypass during fault.The shortcoming of such configuration is to realize UPS plant failure repairing demand, off-line maintenance function and device periodical test requirement, and at the UPS device unusually or during fault, the processing that only has a power failure influences the continuous need for electricity of these responsible consumers.Power failure pattern when UPS device periodic inspection and function test has also produced influence to these users' continuous power supply.
In the prior art, the correlation technique of the problem that when not solving the repairing of UPS device when unusual, periodic inspection load is had a power failure.
Summary of the invention
The device and method that the purpose of this invention is to provide a kind of online switching uninterrupted power supply, shunting device outside setting up in the UPS current supply circuit is so that bypass operation outside switching to when the UPS device is unusual, realize UPS off-line maintenance function, that is: unusual UPS is entrusted outside system splitting repairing, and during repairing, the electric power system of outer bypass operation can drop into outer bypass operation or insert other normal UPS device again according to on-the-spot needs.The bypass operation does not influence the normal operation of electric power system outside switching to when the UPS apparatus function is tested in addition.Be complementary the switching time of switching time and UPS internal bypass.
A first aspect of the present invention, a kind of device of online switching uninterrupted power supply is provided, the input of this uninterrupted power supply is connected to the input current supply circuit by uninterrupted power supply(ups) input mains switch, this input current supply circuit is connected to line by supply line's switch, the output of this uninterrupted power supply is connected to the output current supply circuit, subscriber equipment is connected to the output current supply circuit by the customer charge switch, comprise that also one is parallel to the outer bypass of uninterrupted power supply, be connected to the input current supply circuit by outer by-pass switch, and link to each other with the output current supply circuit; One winding tentaculum, first main contacts are serially connected between the output and output current supply circuit of described uninterrupted power supply, and second main contacts is serially connected between outer by-pass switch and the output current supply circuit; Contactor described uninterrupted power supply and outside switch between the bypass.
Preferable, this device also comprises control circuit, one end is serially connected between the uninterrupted power supply output and first main contacts, and the other end is serially connected between the outer by-pass switch and second main contacts, and this control circuit comprises one or three contact switchs, auxiliary relay, first contactor, second contactor.
Described three contact switchs comprise " test " contact, " maintenance " contact and " normally " contact, when three contact switchs are positioned at " normally " contact, auxiliary relay makes the first contactor adhesive, first main contacts, described line is powered to subscriber equipment by supply line's switch, input mains switch, uninterrupted power supply, first contact, customer charge switch successively, described control circuit is electric by getting for auxiliary relay, and the normal opened contact closure makes contactor adhesive first main contacts of winning realize circuit control.
Described line is powered to subscriber equipment by supply line's switch, outer by-pass switch, second contact, customer charge switch successively, described control circuit is by being the auxiliary relay dead electricity, and the normal opened contact closure makes the second contactor adhesive, second main contacts realize circuit control.
This device also comprises the battery of tests button, comprises first test button, second test button, the 3rd test button, the 4th test button that band keeps.Closed first test button, whether the first contactor adhesive, first main contacts, verification uninterrupted power supply operate as normal; Closed the 3rd test button and first test button, whether the first contactor adhesive, first main contacts, the control circuit of verification " normally " contact operate as normal; Closed first test button, the second contactor adhesive, second main contacts, whether the outer bypass of verification operate as normal; Closed the 4th test button and second test button, whether the second contactor adhesive, second main contacts, the control circuit of verification " maintenance " contact operate as normal.
Described contactor is the alternating electromagnetic contactor.
According to a second aspect of the invention, a kind of method of online switching uninterrupted power supply is provided, the input of this uninterrupted power supply is connected to the input current supply circuit by uninterrupted power supply(ups) input mains switch, this input current supply circuit is connected to line by supply line's switch, the output of this uninterrupted power supply is connected to the output current supply circuit, subscriber equipment is connected to the output current supply circuit by the customer charge switch, comprise that also one is parallel to the outer bypass of uninterrupted power supply, be connected to the input current supply circuit by outer by-pass switch, and with output current supply circuit link to each other, an and winding tentaculum, first main contacts is serially connected between the output and output current supply circuit of described uninterrupted power supply, second main contacts is serially connected between outer by-pass switch and the output current supply circuit, described method comprises: when uninterrupted power supply breaks down or needs when maintenance, cutting off first main contacts, connect second main contacts, is described subscriber equipment power supply by outer bypass.
Preferable, also comprise control circuit, one end is serially connected between the uninterrupted power supply output and first main contacts, the other end is serially connected between the outer by-pass switch and second main contacts, this control circuit comprises one or three contact switchs, auxiliary relay, first contactor, second contactor, and described method is by the switching between control circuit realization uninterrupted power supply and the outer bypass.
Described three contact switchs comprise " test " contact, " maintenance " contact and " normally " contact, when uninterrupted power supply normally moves, three contact switchs are placed into " normally " contact, auxiliary relay makes the first contactor adhesive, first contact, described line is powered to subscriber equipment by supply line's switch, input mains switch, uninterrupted power supply, first contact, customer charge switch successively, described control circuit is electric by getting for auxiliary relay, and the normal opened contact closure makes contactor adhesive first main contacts of winning realize circuit control.
When uninterrupted power supply breaks down or need maintenance, when three contact switchs are placed into " maintenance " contact, auxiliary relay makes the second contactor adhesive, second contact, described line is powered to subscriber equipment by supply line's switch, outer by-pass switch, second main contacts, customer charge switch successively, described control circuit is by being the auxiliary relay dead electricity, and the normal opened contact closure makes the second contactor adhesive, second main contacts realize circuit control.
This device also comprises the battery of tests button, comprises first test button, second test button, the 3rd test button, the 4th test button that band keeps; When needs are tested, three contact switchs are placed into " test " contact, closed first test button, whether the first contactor adhesive, first main contacts, verification uninterrupted power supply operate as normal; Closed the 3rd test button and first test button, whether a contactor adhesive first main contacts, the control circuit of verification " normally " contact operate as normal; Closed first test button, the second contactor adhesive, second main contacts, whether the outer bypass of verification operate as normal; Closed the 4th test button and second test button, whether the second contactor adhesive, second main contacts, the control circuit of verification " maintenance " contact operate as normal.
The device of the online switching uninterrupted power supply of the present invention, adopt outer bypass as the maintenance circuit, be not arranged in the uninterrupted power supply body, so can realize carrying out normal power supply on one side, carry out the pattern that the uninterrupted power supply(ups) off-line is safeguarded or overhauled on one side, can prolong or adjust at any time the periodical repair cycle of the uninterrupted power supply(ups) and the storage battery of enclosing.That is: the plan of uninterrupted power supply(ups) periodical repair can be carried out synchronously in conjunction with corresponding primary system component, does not need single-row in addition.And the failure rate that impacts the primary system component production run unusually because of uninterrupted power supply(ups) also will reduce greatly.
Description of drawings
In the present invention, identical Reference numeral is represented identical feature all the time, wherein,
Fig. 1 is the electrical schematic diagram of UPS current supply circuit in the prior art;
Fig. 2 is the electrical schematic diagram according to the device of the online detection UPS of one embodiment of the invention;
Fig. 3 A and Fig. 3 B are the electrical schematic diagrams according to the control circuit of the device of the online detection UPS of one embodiment of the invention.
Embodiment
Further describe the technical solution of the utility model below in conjunction with drawings and Examples.
The technology that the purpose of this invention is to provide a kind of online switching UPS, at first, with reference to figure 1, Fig. 1 is the electrical schematic diagram of UPS current supply circuit in the prior art, the input of this UPS is connected to the input current supply circuit by UPS device input mains switch MCB2, this input current supply circuit is connected to line by the switch MCB1 of supply line, and the output of this UPS is connected to the output current supply circuit, and subscriber equipment is connected to the output current supply circuit by customer charge switch MCB3.Thus, the circuit loop to the subscriber equipment power supply is: civil power (220V or the 380V) → switch MCB1 of supply line → UPS device input mains switch MCB2 → UPS → customer charge switch MCB3 → subscriber equipment.In the prior art, when the UPS device takes place when unusual, the UPS device switches to device internal bypass powering mode output alarm signal simultaneously.In the switch MCB1 of supply line dead electricity, promptly during the civil power dead electricity, the UPS device switches to battery discharging powering mode output alarm signal simultaneously.Behind the city power recovery, the UPS device automatically switches to the normal mode power supply, and storage battery transfers charge mode to.The unusual repairing of UPS device can not onlinely be carried out, and needs to carry out after load has a power failure.
Fig. 2 is the electrical schematic diagram according to the device of the online detection UPS of one embodiment of the invention.In the device of online switching UPS of the present invention, the input of UPS is connected to the input current supply circuit by UPS device input mains switch MCB2, this input current supply circuit is connected to line by the switch MCB1 of supply line, the output of this UPS is connected to the output current supply circuit, subscriber equipment is connected to the output current supply circuit by customer charge switch MCB3, and this device also comprises:
One is parallel to the outer bypass of UPS, is connected to the input current supply circuit by outer by-pass switch MCB4, and links to each other with the output current supply circuit;
One winding tentaculum, the first main contacts MC1 are serially connected between the output and output current supply circuit of UPS, and the second main contacts MC2 is serially connected between outer by-pass switch MCB4 and the output current supply circuit;
Contactor UPS and outside switch between the bypass.
Thus, two current supply circuits have been formed, the normal power supply loop is the switch MCB1 of supply line → UPS device input mains switch MCB2 → UPS → first main contacts MC1 → customer charge switch MCB3 → subscriber equipment, and outer bypass power supply loop, be the switch MCB1 of supply line → outer by-pass switch MCB4 → second main contacts MC2 → customer charge switch MCB3 → subscriber equipment.In this embodiment, contactor adopts the alternating electromagnetic contactor, and MC1, MC2 are alternating electromagnetic contactor first main contacts and second main contacts.For preventing UPS device experiment, maintenance or switch to UPS internal bypass or battery-operated when examining surely that the present invention's design realizes the switching of A.C. contactor at the UPS outlet side.
According to embodiments of the invention, also comprise control circuit, one end is serially connected between the UPS output and the first main contacts MC1, the other end is serially connected between the outer by-pass switch MCB4 and the second main contacts MC2, and this control circuit comprises one or three contact switchs, auxiliary relay KA1, the first contactor KM1, the second contactor KM2.
With reference to figure 3A and Fig. 3 B, Fig. 3 A and Fig. 3 B are the electrical schematic diagrams according to the control circuit of the device of the online detection UPS of one embodiment of the invention.
According to embodiments of the invention, this three contact switch comprises " test " contact, " maintenance " contact and " normally " contact, during the UPS operate as normal, when three contact switchs are positioned at " normally " contact, auxiliary relay KA1 makes the first contactor KM1 adhesive, the first main contacts MC1, line is successively by the switch MCB1 of supply line, input mains switch MCB2, UPS, the first main contacts MC1, customer charge switch MCB3 powers to subscriber equipment, control circuit is electric by getting for auxiliary relay KA1, and the normal opened contact closure makes the contactor KM1 adhesive first main contacts MC1 that wins realize circuit control.
The UPS working method be " UPS is normal " during normal operation, and the normal opened contact by auxiliary relay KA1 makes the main contacts MC1 closure of winning, maintenance UPS powering mode with the first contactor KM1 adhesive.At this moment, current supply circuit is: the switch MCB1 of supply line → input mains switch MCB2 → UPS → first main contacts MC1 → customer charge switch MCB3 → subscriber equipment.Control loop is, and civil power (220V or 380V) → auxiliary relay KA1 is charged → and auxiliary relay KA1 normal opened contact closure → first contactor KM1 is charged → the closed and bright lamp indication of the first main contacts MC1.
When needs overhaul UPS, when three contact switchs are positioned at " maintenance " contact, auxiliary relay KA1 makes the second contactor KM2 adhesive, the second main contacts MC2, line is powered to subscriber equipment by the switch MCB1 of supply line, outer by-pass switch MCB4, the second main contacts MC2, customer charge switch MCB3 successively, control circuit is by being auxiliary relay KA1 dead electricity, and the normal opened contact closure makes the second contactor KM2 adhesive, the second main contacts MC2 realize circuit control.
When the UPS device is unusual, the UPS device normally switches to the operation of UPS internal bypass and reports to the police simultaneously, the spot check attendant is cut to the UPS working method " UPS maintenance " to the scene, at this moment auxiliary relay KA1 dead electricity, normally closed contact by auxiliary relay KA1 is with the second contactor KM2 adhesive, the second main contacts MC2 closure, subscriber equipment realize UPS off-line maintenance function by outer bypass power supply.At this moment, current supply circuit is: the switch MCB1 of supply line → outer by-pass switch MCB4 → second main contacts MC2 → customer charge switch MCB3 → subscriber equipment.Control loop is, line (220V or 380V) → auxiliary relay KA1 dead electricity → auxiliary relay KA1 normally closed contact closure → second contactor KM2 is charged → and the closed and bright lamp indication of the second main contacts MC2.
The device of online switching UPS of the present invention also provides the function of test, comprises the battery of tests button, comprises the first test button QA1, the second test button QA2, the 3rd test button TA1, the 4th test button TA2 that band keeps.
When UPS was tested, three contact switchs were positioned at " test " contact, the closed first test button QA1, and whether the first contactor KM1 adhesive, the first main contacts MC1, verification UPS operate as normal; Closed the 3rd test button TA1 and the first test button QA1, whether a contactor KM1 adhesive first main contacts MC1, the control circuit of verification " normally " contact operate as normal; The closed first test button QA2, the second contactor KM2 adhesive, the second main contacts MC2, whether the outer bypass of verification operate as normal; Closed the 4th test button TA2 and the second test button QA2, whether the second contactor KM2 adhesive, the second main contacts MC2, the control circuit of verification " maintenance " contact operate as normal.
When the UPS apparatus function was tested, the spot check attendant switched to the UPS working method " UPS test ", and press the first test button QA1, the first contactor KM1 adhesive, the first main contacts MC1 closure, verification UPS normal power supply loop correctness this moment; Press the second test button QA2, the second contactor KM2 adhesive, the second main contacts MC2 closure, the outer bypass loop correctness of verification UPS.The control circuit of this moment is, the major loop test loop comprise civil power (220V or 380V) → the 3rd test button TA1 closure → first test button QA1 manual closing → first contactor KM1 charged → the closed and bright lamp indication of the first main contacts MC1.Outer bypass test loop comprise civil power (220V or 380V) → the 4th test button TA2 closure → second test button QA2 manual closing → second contactor KM2 charged → the closed and bright lamp indication of the second main contacts MC2.
Outside during the bypass power supply pattern, cut off the power supply that does not influence load behind the UPS main circuit power, pull down unusual UPS device this moment, can realize the maintenance of UPS device offline, replacing and periodic inspection function.
According to the present invention, the method of a kind of online switching UPS also is provided, the input of this UPS is connected to the input current supply circuit by UPS device input mains switch MCB2, this input current supply circuit is connected to line by the switch MCB1 of supply line, the output of this UPS is connected to the output current supply circuit, subscriber equipment is connected to the output current supply circuit by customer charge switch MCB3, comprise that also one is parallel to the outer bypass of UPS, be connected to the input current supply circuit by outer by-pass switch MCB4, and with output current supply circuit link to each other, an and winding tentaculum, the first main contacts MC1 is serially connected between the output and output current supply circuit of described UPS, the second main contacts MC2 is serially connected between outer by-pass switch MCB4 and the output current supply circuit, this method comprises: when UPS breaks down or needs when maintenance, cutting off the first main contacts MC1, connect the second main contacts MC2, is described subscriber equipment power supply by outer bypass.
According to an embodiment, also comprise control circuit, one end is serially connected between the UPS output and the first main contacts MC1, the other end is serially connected between the outer by-pass switch MCB4 and the second main contacts MC2, this control circuit comprises one or three contact switchs, auxiliary relay KA1, the first contactor KM1, the second contactor KM2, and described method is by the switching between control circuit realization UPS and the outer bypass.
This three contact switch comprises " test " contact, " maintenance " contact and " normally " contact,
When UPS normally moves, three contact switchs are placed into " normally " contact, auxiliary relay KA1 makes the first contactor KM1 adhesive, the first main contacts MC1, line is powered to subscriber equipment by the switch MCB1 of supply line, input mains switch MCB2, UPS, the first main contacts MC1, customer charge switch MCB3 successively, control circuit is electric by getting for auxiliary relay KA1, and the normal opened contact closure makes the contactor KM1 adhesive first main contacts MC1 that wins realize circuit control.
When UPS breaks down or need maintenance, when three contact switchs are placed into " maintenance " contact, auxiliary relay KA1 makes the second contactor KM2 adhesive, the second main contacts MC2, line is powered to subscriber equipment by the switch MCB1 of supply line, outer by-pass switch MCB4, the second main contacts MC2, customer charge switch MCB3 successively, control circuit is by being auxiliary relay KA1 dead electricity, and the normal opened contact closure makes the second contactor KM2 adhesive, the second main contacts MC2 realize circuit control.
The device of online switching UPS of the present invention also provides test function, and this device also comprises the battery of tests button, comprises the first test button QA1, the second test button QA2, the 3rd test button TA1, the 4th test button TA2 that band keeps;
When needs are tested, three contact switchs are placed into " test " contact, the closed first test button QA1, whether the first contactor KM1 adhesive, the first main contacts MC1, verification UPS operate as normal; Closed the 3rd test button TA1 and the first test button QA1, whether a contactor KM1 adhesive first main contacts MC1, the control circuit of verification " normally " contact operate as normal; The closed first test button QA2, the second contactor KM2 adhesive, the second main contacts MC2, whether the outer bypass of verification operate as normal; Closed the 4th test button TA2 and the second test button QA2, whether the second contactor KM2 adhesive, the second main contacts MC2, the control circuit of verification " maintenance " contact operate as normal.
Adopt technical scheme of the present invention,, adopt the contactor switching mode, bypass work outside when UPS device experiment, maintenance or periodical test, switching to for UPS increases outer bypass loop; For preventing UPS device experiment, maintenance or switching to UPS internal bypass or battery-operated when examining surely, realize switching at the UPS outlet side, promptly contactor is installed at the UPS outlet side; The UPS working method is " UPS is normal " during normal the operation, when the UPS plant failure, switching to the operation of UPS internal bypass by normal UPS power supply reports to the police simultaneously, the spot check attendant is cut to the UPS working method " UPS maintenance " to the scene, at this moment current supply circuit switches to outer bypass, realizes UPS off-line maintenance function.When the UPS apparatus function is tested, the UPS working method is switched to " UPS test ", realize the mode of UPS apparatus function test requirements document.
Technical scheme of the present invention has realized the switching mode that the contact by relay comes control contactor by increasing a few components such as a winding tentaculum, relay, switch, can realize substantially switching in zero second, and contactor operate time is below 200 milliseconds.It is the mode of the online switching of a kind of cost-effective UPS.
Claims (12)
1. the device of an online switching uninterrupted power supply, the input of this uninterrupted power supply is imported mains switch (MCB2) by uninterrupted power supply(ups) and is connected to the input current supply circuit, this input current supply circuit is connected to line by supply line's switch (MCB1), the output of this uninterrupted power supply is connected to the output current supply circuit, subscriber equipment is connected to the output current supply circuit by customer charge switch (MCB3), it is characterized in that, also comprise
One is parallel to the outer bypass of uninterrupted power supply, and (MCB4) is connected to the input current supply circuit by outer by-pass switch, and links to each other with the output current supply circuit;
One winding tentaculum, first main contacts (MC1) are serially connected between the output and output current supply circuit of described uninterrupted power supply, and second main contacts (MC2) is serially connected between outer by-pass switch (MCB4) and the output current supply circuit;
Described contactor described uninterrupted power supply and outside switch between the bypass.
2. the device of online switching uninterrupted power supply as claimed in claim 1 is characterized in that,
Also comprise control circuit, one end is serially connected between uninterrupted power supply output and first main contacts (MC1), the other end is serially connected between outer by-pass switch (MCB4) and second main contacts (MC2), and this control circuit comprises one or three contact switchs, auxiliary relay (KA1), first contactor (KM1), second contactor (KM2).
3. the device of online switching uninterrupted power supply as claimed in claim 2 is characterized in that,
Described three contact switchs comprise " test " contact, " maintenance " contact and " normally " contact, and when three contact switchs were positioned at " normally " contact, auxiliary relay (KA1) made first contactor (KM1) adhesive first main contacts (MC1),
Described line is powered to subscriber equipment by supply line's switch (MCB1), input mains switch (MCB2), uninterrupted power supply, first main contacts (MC1), customer charge switch (MCB3) successively,
Described control circuit is electric by getting for auxiliary relay (KA1), and the normal opened contact closure makes the contactor of winning (KM1) adhesive main contact (MC1) realize circuit control.
4. the device of online switching uninterrupted power supply as claimed in claim 2 is characterized in that,
Described three contact switchs comprise " test " contact, " maintenance " contact and " normally " contact, and when three contact switchs were positioned at " maintenance " contact, auxiliary relay (KA1) made second contactor (KM2) adhesive second main contacts (MC2),
Described line is powered to subscriber equipment by supply line's switch (MCB1), outer by-pass switch (MCB4), second contact (MC2), customer charge switch (MCB3) successively,
Described control circuit is by being auxiliary relay (KA1) dead electricity, and the normal opened contact closure makes second contactor (KM2) adhesive second main contacts (MC2) realize circuit control.
5. the device of online switching uninterrupted power supply as claimed in claim 2, it is characterized in that, also comprise the battery of tests button, comprise first test button (QA1), second test button (QA2), the 3rd test button (TA1), the 4th test button (TA2) that band keeps.
6. the device of online switching uninterrupted power supply as claimed in claim 5 is characterized in that,
Described three contact switchs comprise " test " contact, " maintenance " contact and " normally " contact, when three contact switchs are positioned at " test " contact,
Closed first test button (QA1), whether first contactor (KM1) adhesive first main contacts (MC1), verification uninterrupted power supply operate as normal;
Closed the 3rd test button (TA1) and first test button (QA1), whether a contactor (KM1) adhesive first main contacts (MC1), the control circuit of verification " normally " contact operate as normal;
Closed first test button (QA2), second contactor (KM2) adhesive second main contacts (MC2), whether the outer bypass of verification operate as normal;
Closed the 4th test button (TA2) and second test button (QA2), whether second contactor (KM2) adhesive second main contacts (MC2), the control circuit of verification " maintenance " contact operate as normal.
7. as the device of each described online switching uninterrupted power supply in the claim 1 to 6, it is characterized in that described contactor is the alternating electromagnetic contactor.
8. the method for an online switching uninterrupted power supply, the input of this uninterrupted power supply is imported mains switch (MCB2) by uninterrupted power supply(ups) and is connected to the input current supply circuit, this input current supply circuit is connected to line by supply line's switch (MCB1), the output of this uninterrupted power supply is connected to the output current supply circuit, subscriber equipment is connected to the output current supply circuit by customer charge switch (MCB3), it is characterized in that, comprise that also one is parallel to the outer bypass of uninterrupted power supply, (MCB4) is connected to the input current supply circuit by outer by-pass switch, and with output current supply circuit link to each other, an and winding tentaculum, first main contacts (MC1) is serially connected between the output and output current supply circuit of described uninterrupted power supply, second main contacts (MC2) is serially connected between outer by-pass switch (MCB4) and the output current supply circuit, and described method comprises:
When uninterrupted power supply breaks down or need maintenance, cut off first main contacts (MC1), connect second main contacts (MC2), be described subscriber equipment power supply by outer bypass.
9. the method for online switching uninterrupted power supply as claimed in claim 8, it is characterized in that, also comprise control circuit, one end is serially connected between uninterrupted power supply output and first main contacts (MC1), the other end is serially connected between outer by-pass switch (MCB4) and second main contacts (MC2), this control circuit comprises one or three contact switchs, auxiliary relay (KA1), first contactor (KM1), second contactor (KM2), and described method is by the switching between control circuit realization uninterrupted power supply and the outer bypass.
10. the method for online switching uninterrupted power supply as claimed in claim 9 is characterized in that,
Described three contact switchs comprise " test " contact, " maintenance " contact and " normally " contact,
When uninterrupted power supply normally moves, three contact switchs are placed into " normally " contact, auxiliary relay (KA1) makes first contactor (KM1) adhesive first main contacts (MC1),
Described line is powered to subscriber equipment by supply line's switch (MCB1), input mains switch (MCB2), uninterrupted power supply, first main contacts (MC1), customer charge switch (MCB3) successively,
Described control circuit is electric by getting for auxiliary relay (KA1), and the normal opened contact closure makes the contactor of winning (KM1) adhesive first main contacts (MC1) realize circuit control.
11. the method for online switching uninterrupted power supply as claimed in claim 9 is characterized in that,
Described three contact switchs comprise " test " contact, " maintenance " contact and " normally " contact,
When uninterrupted power supply broke down or need maintenance, when three contact switchs were placed into " maintenance " contact, auxiliary relay (KA1) made second contactor (KM2) adhesive second main contacts (MC2),
Described line is powered to subscriber equipment by supply line's switch (MCB1), outer by-pass switch (MCB4), second main contacts (MC2), customer charge switch (MCB3) successively,
Described control circuit is by being auxiliary relay (KA1) dead electricity, and the normal opened contact closure makes second contactor (KM2) adhesive second main contacts (MC2) realize circuit control.
12. the method for online switching uninterrupted power supply as claimed in claim 8, it is characterized in that, also comprise the battery of tests button, comprise first test button (QA1), second test button (QA2), the 3rd test button (TA1), the 4th test button (TA2) that band keeps;
Described three contact switchs comprise " test " contact, " maintenance " contact and " normally " contact,
When needs are tested, three contact switchs are placed into " test " contact,
Closed first test button (QA1), the main contact (MC1) of first contactor (KM1) adhesive, whether the verification uninterrupted power supply operate as normal;
Closed the 3rd test button (TA1) and first test button (QA1), whether a contactor (KM1) adhesive first main contacts (MC1), the control circuit of verification " normally " contact operate as normal;
Closed first test button (QA2), second contactor (KM2) adhesive second main contacts (MC2), whether the outer bypass of verification operate as normal;
Closed the 4th test button (TA2) and second test button (QA2), whether second contactor (KM2) adhesive second main contacts (MC2), the control circuit of verification " maintenance " contact operate as normal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007100363838A CN101222145B (en) | 2007-01-11 | 2007-01-11 | Device and method for on-line switching uninterrupted power supply |
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| CN2007100363838A CN101222145B (en) | 2007-01-11 | 2007-01-11 | Device and method for on-line switching uninterrupted power supply |
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| CN101222145A true CN101222145A (en) | 2008-07-16 |
| CN101222145B CN101222145B (en) | 2011-05-11 |
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| CN2007100363838A Active CN101222145B (en) | 2007-01-11 | 2007-01-11 | Device and method for on-line switching uninterrupted power supply |
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Cited By (16)
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|---|---|---|---|---|
| CN102142712A (en) * | 2011-01-18 | 2011-08-03 | 北京首钢自动化信息技术有限公司 | Test method for external bypass of uninterrupted power supply (UPS) |
| CN102244395A (en) * | 2010-05-10 | 2011-11-16 | 力博特公司 | Power distribution circuit of UPS (uninterruptible power supply) |
| CN102916483A (en) * | 2011-08-05 | 2013-02-06 | 无锡华润上华科技有限公司 | UPS (Uninterruptible Power Supply) connecting device |
| CN103633729A (en) * | 2013-01-23 | 2014-03-12 | 世源科技工程有限公司 | Distribution system for machine room of data center |
| TWI470894B (en) * | 2013-01-29 | 2015-01-21 | ||
| CN104836325A (en) * | 2014-02-12 | 2015-08-12 | 艾默生网络能源有限公司 | Switching control methods of uninterruptible power supply, switching control devices of uninterruptible power supply and uninterruptible power supply system |
| CN106526498A (en) * | 2016-10-26 | 2017-03-22 | 阳光电源股份有限公司 | Uninterrupted Power Supply (UPS) self-inspection method and UPS self-inspection circuit |
| CN108601136A (en) * | 2018-03-19 | 2018-09-28 | 厦门阳光恩耐照明有限公司 | A kind of driving circuit of toggle switch switching different conditions |
| CN108649688A (en) * | 2018-06-15 | 2018-10-12 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of external bypass changeover devices of UPS |
| CN108667134A (en) * | 2017-03-29 | 2018-10-16 | 中兴通讯股份有限公司 | A kind of power supply circuit and method |
| CN110797968A (en) * | 2019-11-06 | 2020-02-14 | 漳州科华技术有限责任公司 | Power-off prevention method and system for uninterruptible power supply and terminal equipment |
| CN112350202A (en) * | 2020-10-21 | 2021-02-09 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Online non-power-outage replacement method for new and old equipment for overall transformation of power UPS system |
| CN112542879A (en) * | 2020-11-09 | 2021-03-23 | 深圳供电局有限公司 | Switching control device and method and power supply system |
| CN112653232A (en) * | 2020-04-14 | 2021-04-13 | 中鹏机电有限公司 | Three-in-one power conversion device |
| CN113937653A (en) * | 2021-09-18 | 2022-01-14 | 广东电网有限责任公司广州供电局 | Distribution line migration method |
| CN114759664A (en) * | 2022-06-15 | 2022-07-15 | 武汉新能源研究院有限公司 | Reversible power-off protection device of switch cabinet dehumidifier and use method |
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| US6292379B1 (en) * | 2000-03-29 | 2001-09-18 | Powerware Corporation | Distributed internal fault bypass in a modular uninterruptible power supply |
| CN1599189A (en) * | 2003-09-18 | 2005-03-23 | 帕尔威电力器具公司 | On-line uninterruption source with two relay bypass circuit and its operation method |
| US7265458B2 (en) * | 2005-04-08 | 2007-09-04 | Eaton Power Quality Corporation | Apparatus and methods for coordinated static switch operations for load transfers in uninterruptible power supply systems |
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2007
- 2007-01-11 CN CN2007100363838A patent/CN101222145B/en active Active
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102244395A (en) * | 2010-05-10 | 2011-11-16 | 力博特公司 | Power distribution circuit of UPS (uninterruptible power supply) |
| CN102244395B (en) * | 2010-05-10 | 2013-12-18 | 力博特公司 | Power distribution circuit of UPS (uninterruptible power supply) |
| CN102142712A (en) * | 2011-01-18 | 2011-08-03 | 北京首钢自动化信息技术有限公司 | Test method for external bypass of uninterrupted power supply (UPS) |
| CN102916483A (en) * | 2011-08-05 | 2013-02-06 | 无锡华润上华科技有限公司 | UPS (Uninterruptible Power Supply) connecting device |
| CN103633729A (en) * | 2013-01-23 | 2014-03-12 | 世源科技工程有限公司 | Distribution system for machine room of data center |
| TWI470894B (en) * | 2013-01-29 | 2015-01-21 | ||
| CN104836325A (en) * | 2014-02-12 | 2015-08-12 | 艾默生网络能源有限公司 | Switching control methods of uninterruptible power supply, switching control devices of uninterruptible power supply and uninterruptible power supply system |
| CN106526498A (en) * | 2016-10-26 | 2017-03-22 | 阳光电源股份有限公司 | Uninterrupted Power Supply (UPS) self-inspection method and UPS self-inspection circuit |
| CN106526498B (en) * | 2016-10-26 | 2019-02-01 | 阳光电源股份有限公司 | UPS self checking method and UPS self-checking circuit |
| CN108667134A (en) * | 2017-03-29 | 2018-10-16 | 中兴通讯股份有限公司 | A kind of power supply circuit and method |
| CN108601136A (en) * | 2018-03-19 | 2018-09-28 | 厦门阳光恩耐照明有限公司 | A kind of driving circuit of toggle switch switching different conditions |
| CN108649688A (en) * | 2018-06-15 | 2018-10-12 | 甘肃酒钢集团宏兴钢铁股份有限公司 | A kind of external bypass changeover devices of UPS |
| CN108649688B (en) * | 2018-06-15 | 2023-08-04 | 甘肃酒钢集团宏兴钢铁股份有限公司 | External bypass switching device of UPS |
| CN110797968A (en) * | 2019-11-06 | 2020-02-14 | 漳州科华技术有限责任公司 | Power-off prevention method and system for uninterruptible power supply and terminal equipment |
| CN110797968B (en) * | 2019-11-06 | 2021-04-27 | 漳州科华技术有限责任公司 | Power-off prevention method and system for uninterruptible power supply and terminal equipment |
| CN112653232A (en) * | 2020-04-14 | 2021-04-13 | 中鹏机电有限公司 | Three-in-one power conversion device |
| CN112350202A (en) * | 2020-10-21 | 2021-02-09 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Online non-power-outage replacement method for new and old equipment for overall transformation of power UPS system |
| CN112350202B (en) * | 2020-10-21 | 2022-11-01 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Online uninterrupted power supply replacement method for new and old equipment integrally transformed in power UPS system |
| CN112542879A (en) * | 2020-11-09 | 2021-03-23 | 深圳供电局有限公司 | Switching control device and method and power supply system |
| CN113937653A (en) * | 2021-09-18 | 2022-01-14 | 广东电网有限责任公司广州供电局 | Distribution line migration method |
| CN114759664A (en) * | 2022-06-15 | 2022-07-15 | 武汉新能源研究院有限公司 | Reversible power-off protection device of switch cabinet dehumidifier and use method |
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