CN204886185U - Ring protection device is closed to general type movable type - Google Patents

Ring protection device is closed to general type movable type Download PDF

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Publication number
CN204886185U
CN204886185U CN201520555193.7U CN201520555193U CN204886185U CN 204886185 U CN204886185 U CN 204886185U CN 201520555193 U CN201520555193 U CN 201520555193U CN 204886185 U CN204886185 U CN 204886185U
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China
Prior art keywords
terminal
inlet wire
input
portable
cyclization
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Active
Application number
CN201520555193.7U
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Chinese (zh)
Inventor
王劲松
金军
赵丹
田密
徐永亮
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Beijing Capital Airport Power And Energy Co Ltd
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Beijing Capital Airport Power And Energy Co Ltd
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Priority to CN201520555193.7U priority Critical patent/CN204886185U/en
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Abstract

The utility model relates to a ring protection device is closed to general type movable type, including portable box, it protects device, input terminal and signal output terminal to be equipped with in the portable box to combine, combine the input of protecting the device and connect the input terminal, it is connected with signal output terminal to combine the output of protecting the device, the input terminal is connected with female terminal row that allies oneself with the switch with two way inlet wires of the electric wire netting that needs the protection, signal output terminal is connected with an inlet wire separating brake control terminal of the electric wire netting of need protection. Improving through the comprehensive guarantor's device inlet wire to ordinary, realizing independent portable ring protection device is closed to general type movable type, adopt this device, no matter whether the transformer substation has to combine is protected the device, can all the direct access as long as possess the equipment that accords with the dual power supply transformer substation of closing the ring condition, and insert and can avoid higher level's switch behind this device owing to realize the ring that closes on the spot of electricity incessantly under closing the prerequisite of the too big switch motion of resulting in of circular current influence power supply and fall the load and operate.

Description

A kind of universal portable cyclization protective device
Technical field
The utility model relates to a kind of universal portable cyclization protective device.
Background technology
Along with being gradually improved of system rack, and the requirement of user to uninterrupted power supply is increased day by day, introduces Loop Closing Operation in a large number in Forming Electrical Dispatching Command Tickets process, thus ensure that normal service, in load transfer plan process, is unlikely to affect the continuous power supply to user.In order to realize the cyclization grid switching operation do not had a power failure, the mother to scheduling application upper level electrical network (35kV and above) is needed to carry out cyclization, according to relevant codes such as scheduling, Loop Closing Operation needs to apply in advance, even if dispatching command application is got off, carry out cyclization at upper level electrical network and also certainly will increase cyclization scope, be unfavorable for safe operation.If the time to scheduling application cyclization can be saved, again can cyclization on the spot, cyclization coverage being down to minimum, possessing cyclization protection with regard to needing the transformer station of local Loop Closing Operation.But, these substation equipment newness degree disunities, primary equipment, secondary device model is also varied, cyclization protection can be installed by technological transformation by the comparatively advanced transformer station of some equipment, (note: in electrical network Loop Closing Operation process, larger steady-state current and impulse current may be produced, this will directly have influence on the safe operation of electrical network, cyclization protection is used for the larger Alloy White Iron effectively controlling appearance at electrical network Loop Closing Operation, cyclization protection setting one section of safe current upper limit, if Alloy White Iron exceedes set point, then during cyclization, choosing is jumped selected service entrance switch and is avoided higher level's switch protection action breaking, although cyclization is unsuccessful but achieve the object of falling load that do not have a power failure.If Alloy White Iron is in set point, then safe cyclization, operation personnel can carry out further work.) and for comparatively old transformer station, as: protective device is more early stage complex protection device, or is more old specified time, inverse time over-current protector.
Utility model content
Technical problem to be solved in the utility model is; for in the transformer station described in prior art; do not possess the primary condition of carrying out cyclization protection transformation; load operation is fallen in the cyclization on the spot that also just can not have a power failure, and provides the universal portable cyclization protective device that load operation is fallen in a kind of cyclization on the spot that can not have a power failure.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of universal portable cyclization protective device, comprises portable casing, be provided with complex protection device, input terminal and signal output terminal in described portable casing;
The input of described complex protection device connects input terminal, and the output of described complex protection device is connected with signal output terminal;
Described input terminal is connected with the terminal board of bus connection switch with the two-way inlet wire of the electrical network that need protect;
Described signal output terminal is connected with the inlet wire one separating brake control terminal of the electrical network that need protect.
The beneficial effects of the utility model are: by improving common complex protection device inlet wire; realize independently portable universal portable cyclization protective device; adopt this device; no matter whether transformer station has complex protection device; can directly access, load operation is fallen in the cyclization on the spot that can not have a power failure after accessing this device.
On the basis of technique scheme, the utility model can also do following improvement.
Further, described input terminal comprises current input terminal and voltage input-terminal;
Described current input terminal is connected with the mother current measurement terminal of electrical network;
Described voltage input-terminal is connected with mother voltage measurement terminal with the inlet wire one voltage measurement terminal of electrical network, inlet wire two voltage measurement terminal respectively.
Further, also comprise the power supply be arranged in portable casing, described power supply is that complex protection device is powered.
Further, connection control line is also comprised;
Described current input terminal is connected with the mother current measurement terminal of electrical network by connection control line; Described voltage input-terminal is connected with mother voltage measurement terminal with the inlet wire one voltage measurement terminal of electrical network, inlet wire two voltage measurement terminal respectively by connection control line;
Described signal output terminal is connected with the inlet wire one separating brake control terminal of the electrical network that need protect by connection control line.
Further, described portable casing is portable.
Accompanying drawing explanation
Fig. 1 is that the universal portable cyclization protective device of one described in the utility model uses schematic diagram;
Fig. 2 is the distribution network closed loop schematic diagram of a kind of universal portable cyclization protective device described in the utility model.
In accompanying drawing, the list of parts representated by each label is as follows:
1, portable casing, 2, complex protection device, 3, input terminal, 4, signal output terminal, 5, power supply, 6, current input terminal, 7, voltage input-terminal, 8, mother current measurement terminal, 9, inlet wire one voltage measurement terminal, 10, inlet wire two voltage measurement terminal, 11, mother voltage measurement terminal, 12, inlet wire one separating brake control terminal, 13, inlet wire two separating brake control terminal, 14, inlet wire one current measurement terminal, 15, inlet wire two current measurement terminal.
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, be the universal portable cyclization protective device of one described in the utility model, comprise portable casing 1, in described portable casing 1, be provided with complex protection device 2, input terminal 3 and signal output terminal 4;
The input of described complex protection device 2 connects input terminal 3, and the output of described complex protection device 2 is connected with signal output terminal 4;
Described input terminal 3 is connected with the terminal board of bus connection switch with the two-way inlet wire of the electrical network that need protect;
Described signal output terminal 4 is connected with the inlet wire one separating brake control terminal 12 of the electrical network that need protect.
Described input terminal 3 comprises current input terminal 6 and voltage input-terminal 7;
Described current input terminal 6 is connected with the mother current measurement terminal 8 of electrical network;
Described voltage input-terminal 7 is connected with mother voltage measurement terminal 11 with the inlet wire one voltage measurement terminal 9 of electrical network, inlet wire two voltage measurement terminal 10 respectively.
Also comprise the power supply 5 be arranged in portable casing, described power supply 5 is powered for complex protection device.
Also comprise connection control line;
Described current input terminal 6 is connected with the mother current measurement terminal 8 of electrical network by connection control line; Described voltage input-terminal 7 is connected with mother voltage measurement terminal 11 with the inlet wire one voltage measurement terminal 9 of electrical network, inlet wire two voltage measurement terminal 10 respectively by connection control line;
Described signal output terminal 4 is connected with the inlet wire one separating brake control terminal 12 of the electrical network that need protect by connection control line.
Described portable casing is portable.
The application undergoes technological transformation by leading to complex protection device to a Daepori.Common complex protection device arranges one section of cyclization protection (definite value and time can require to adjust according to the difference of transformer station); and the input of complex protection device, output signal (three-phase current, interlocking signal, trip signal, alarm signal), installation's power source are drawn by panel, the terminal board of two-way inlet wire and bus connection switch is connected to through control line.In Loop Closing Operation process, such as: certain 10kV transformer station need carry out Loop Closing Operation, two-way inlet wire 201,202 switch.If Alloy White Iron (i.e. A, B, C three-phase current) reaches definite value and time, the trip signal of TRIP is then selected to enter electrical connection by control 1, carry out outside through control 2 and judge that (outside judges association 245 position of the switch, switch is in co-bit, then be communicated with), signal, by control 4 (HSPO1 heavy duty tripping operation outlet) outlet, through external cabling to 245 switch trip coil, realizes 245 switch trips.The rear protective device LED6 lamp that tripped is bright and keep.
As shown in Figure 1, be a concrete example of the present utility model, inlet wire one, inlet wire two are charged respectively, maintenance inlet wire one, inlet wire one separating brake control terminal 12, inlet wire two separating brake control terminal 13, inlet wire one current measurement terminal 14, inlet wire two current measurement terminal 15; When do not have a power failure Loop Closing Operation time, operating personnel, according to on-the-spot ruuning situation, first calculate Alloy White Iron, then engaging means power supply 5, device are carried out to the setting of Alloy White Iron limit value and trip time; After having set, device current input terminal 6 is connected mother current measurement terminal 8, device voltage input-terminal 7 connects inlet wire one voltage measurement terminal 9, inlet wire two voltage measurement terminal 10 and mother voltage measurement terminal 11 3 terminals, and device control signal lead-out terminal 4 connects inlet wire one separating brake control terminal 12.After having connected, operating personnel operate mother combined floodgate hand handle, to close mother, device is according to the measured value of the combined floodgate moment switching current collected, voltage, and the definite value set with device is compared, when measured value and time do not reach device definite value, close a floodgate successfully, operating personnel operate inlet wire one separating brake hand handle, disconnect inlet wire one, complete Loop Closing Operation process.(now illustrate that Alloy White Iron is excessive when measured value and time reach device definite value, greater impact can be produced) to electrical network, then device action sends trip signal, by device control signal lead-out terminal 4, trip signal is delivered to inlet wire one separating brake control terminal 12, inlet wire one realizes tripping operation, can avoid causing harmful effect because of cyclization to electrical network or causing the major accidents such as electrical network overstep tripping, also realize closing mother and disconnecting inlet wire one.
When inlet wire one has overhauled, need to recover former operational mode and (namely operate the inlet wire one that closes, disconnect mother) time, then operating personnel repeat above step, after device cyclization definite value has been set, respectively device current input terminal 6 is connected mother current measurement terminal 8, device voltage input-terminal 7 connects inlet wire one voltage measurement terminal 9, inlet wire two voltage measurement terminal 10 and mother voltage measurement terminal 11, and device control signal lead-out terminal 4 connects mother separating brake control terminal.Operation inlet wire one closes a floodgate hand handle, close inlet wire one, device is according to the measured value of the combined floodgate moment switching current collected, voltage, the definite value set with device is compared, when measured value and time do not reach device definite value, close a floodgate successfully, operating personnel operate mother separating brake hand handle, disconnect mother, complete Loop Closing Operation process.(now illustrate that Alloy White Iron is excessive when measured value and time reach device definite value, greater impact can be produced) to electrical network, device action sends trip signal, by control signal lead-out terminal 4, trip signal is delivered to mother separating brake control terminal, inlet wire one realizes tripping operation, avoid causing harmful effect because of cyclization to electrical network or causing the major accidents such as electrical network overstep tripping, also realize the function disconnecting inlet wire one.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.

Claims (5)

1. a universal portable cyclization protective device, is characterized in that, comprise portable casing, is provided with complex protection device, input terminal and signal output terminal in described portable casing;
The input of described complex protection device connects input terminal, and the output of described complex protection device is connected with signal output terminal;
Described input terminal is connected with the terminal board of bus connection switch with the two-way inlet wire of the electrical network that need protect;
Described signal output terminal is connected with the inlet wire one separating brake control terminal of the electrical network that need protect.
2. the universal portable cyclization protective device of one according to claim 1, it is characterized in that, described input terminal comprises current input terminal and voltage input-terminal;
Described current input terminal is connected with the mother current measurement terminal of electrical network;
Described voltage input-terminal is connected with mother voltage measurement terminal with the inlet wire one voltage measurement terminal of electrical network, inlet wire two voltage measurement terminal respectively.
3. the universal portable cyclization protective device of one according to claim 2, is characterized in that, also comprise the power supply be arranged in portable casing, and described power supply is that complex protection device is powered.
4. the universal portable cyclization protective device of one according to claim 2, is characterized in that, also comprise connection control line;
Described current input terminal is connected with the mother current measurement terminal of electrical network by connection control line; Described voltage input-terminal is connected with mother voltage measurement terminal with the inlet wire one voltage measurement terminal of electrical network, inlet wire two voltage measurement terminal respectively by connection control line;
Described signal output terminal is connected with the inlet wire one separating brake control terminal of the electrical network that need protect by connection control line.
5. the universal portable cyclization protective device of the one according to any one of claim 1-4, it is characterized in that, described portable casing is portable.
CN201520555193.7U 2015-07-28 2015-07-28 Ring protection device is closed to general type movable type Active CN204886185U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520555193.7U CN204886185U (en) 2015-07-28 2015-07-28 Ring protection device is closed to general type movable type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520555193.7U CN204886185U (en) 2015-07-28 2015-07-28 Ring protection device is closed to general type movable type

Publications (1)

Publication Number Publication Date
CN204886185U true CN204886185U (en) 2015-12-16

Family

ID=54830517

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520555193.7U Active CN204886185U (en) 2015-07-28 2015-07-28 Ring protection device is closed to general type movable type

Country Status (1)

Country Link
CN (1) CN204886185U (en)

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