CN206117131U - Protector of equipment - Google Patents
Protector of equipment Download PDFInfo
- Publication number
- CN206117131U CN206117131U CN201621186337.7U CN201621186337U CN206117131U CN 206117131 U CN206117131 U CN 206117131U CN 201621186337 U CN201621186337 U CN 201621186337U CN 206117131 U CN206117131 U CN 206117131U
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- Prior art keywords
- protector
- equipment
- cable
- bus
- current
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- 230000001012 protector Effects 0.000 title claims abstract description 45
- 230000007935 neutral effect Effects 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 6
- 230000009466 transformation Effects 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model relates to a protector field discloses a protector of equipment, and this protector includes: one or more current collection device concatenates on the cable and/or ac bus of equipment, be used for gathering cable and/or ac bus's electric current, and controlling means, install in the tripping circuit's of equipment outside cable and/or ac bus's electric current is greater than under the condition of first predetermined value, control tripping circuit work. Through with the outside of protector setting at tripping circuit, can be under the circumstances of guaranteeing house switch return circuit steady operation, reduce the transformation cost of protector.
Description
Technical field
The utility model is related to protection of device field, in particular it relates to a kind of protector of equipment.
Background technology
The protection device of generator typically adopts ABB protection devices, as shown in figure 1, the ABB protection devices 110 are mounted
It is internal in trip(ping) circuit 120.ABB protection devices are the products designed by ABB AB 2000, and defencive function falls behind, failure
Rate is high, and at present ABB AB stops producing the protection device, and the product and existing switch trip loop after upgrading
It is incompatible.If factory upgrade last word, even frame-type circuit breaker is needed integrally to be changed, whole replacing needs bus to stop
Electricity, to frame breaker mechanism and connecting line whole transformations are carried out, and quantities is great, and change each new product estimated charges
About 100,000 yuan or so.
Utility model content
The purpose of this utility model is to provide a kind of protector of equipment, and its is reliable, easy to maintenance, and can be very
The improvement cost of protector is reduced in big degree.
To achieve these goals, the utility model provides a kind of protector of equipment, and the protector includes：One more
Individual current collecting device, is serially connected on the cable of the equipment and/or ac bus, for gathering the cable and/or exchange
The electric current of bus；And control device, the outside of the trip(ping) circuit of the equipment is installed on, it is female in the cable and/or exchange
More than in the case of the first predetermined value, the control trip(ping) circuit works the electric current of line.
Preferably, the control device is installed on the top of the trip(ping) circuit.
Preferably, the equipment is transformer or generator.
Preferably, one or more of current collecting devices are also serially connected at the neutral point of the equipment, described
More than in the case of second predetermined value, the control device controls the trip(ping) circuit work to electric current at neutral point.
Preferably, the protector also includes one or more of following：Storage device, it is integrated with the control device
Together, for storing current value, current value acquisition time and failure that one or more of current collecting devices are gathered
Title；And display device, integrate with the control device, for showing one or more of current collecting device institutes
The current value of collection, current value acquisition time and failure title.
Preferably, the control device is relay protector.
Preferably, the current collecting device is Current Transmit.
Correspondingly, the utility model also provides a kind of protector of equipment, and the protector includes：One or more electric currents are adopted
Acquisition means, are serially connected on the cable of the equipment and/or ac bus, for gathering the electricity of the cable and/or ac bus
Stream；And control device, the outside of the trip(ping) circuit of the equipment is installed on, it is used for：In the cable and/or ac bus
In the case that electric current is less than third predetermined value more than first predetermined value, trip(ping) circuit work described in delays time to control, in the electricity
In the case that the electric current of cable and/or ac bus is more than the third predetermined value, the trip(ping) circuit work is controlled immediately.
By above-mentioned technical proposal, protector is arranged on into the outside of trip(ping) circuit, service power switch can ensured
In the case that loop stability runs, the improvement cost of protector is reduced.
Other features and advantages of the utility model will be described in detail in subsequent specific embodiment part.
Description of the drawings
Accompanying drawing is further understood to of the present utility model for providing, and constitutes a part for specification, and following
Specific embodiment be used to explain the utility model together, but do not constitute to restriction of the present utility model.In the accompanying drawings：
Fig. 1 shows the scheme of installation of ABB protection devices in prior art；And
Fig. 2 shows the scheme of installation of the protector of equipment provided by the utility model.
Description of reference numerals
The trip(ping) circuit of 110 ABB protection devices 120
The control device of 210 current collecting device 220
The cable of 230 ac bus 240
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein
Described specific embodiment is merely to illustrate and explains the utility model, is not limited to the utility model.
In the utility model, in the case where contrary explanation is not made, it is right that the noun of locality for using such as " top " is typically referred to
The top outside the profile of device is answered, " inside and outside " is referred within the profile of corresponding intrument and outside profile.
In addition, " first ", " second " and " the 3rd " that be previously mentioned in embodiment of the present utility model is only used for describing mesh
, and it is not intended that indicating or implying relative importance or the implicit quantity for indicating indicated technical characteristic.
Fig. 2 shows the scheme of installation of the protector of equipment provided by the utility model.As shown in Fig. 2 this practicality
A kind of protector of equipment of new offer, the protector can include：One or more current collecting devices 210, are serially connected in institute
State on the cable 240 and/or ac bus 230 of equipment, for gathering the electric current of the cable 240 and/or ac bus 230；
And control device 220, the outside of the trip(ping) circuit 120 of the equipment is installed on, in the cable 240 and/or ac bus
More than in the case of the first predetermined value, the control trip(ping) circuit 120 works 230 electric current.What the utility model was provided
The protector is installed on the outside of trip(ping) circuit, and cost is little, reliable and can easily dismount and safeguard.
In one embodiment, current collecting device 210 can adopt Current Transmit, but the utility model is not limited
It is formed on this.
In one embodiment, by taking cable 240 as an example, the electric current of the cable 240 measured in current collecting device 210 is more than the
One predetermined value and in the case of being less than third predetermined value, control device 220 can be with deferred action, you can with through a bit of time
The action of trip(ping) circuit 120 is controlled again after (e.g., 10 seconds), and the behavior of protector is referred to as overcurrent protection, and the overcurrent protection also may be used
It is correspondingly used as the failure title of equipment.The electric current of the cable 240 measured in current collecting device 210 is more than third predetermined value
In the case of, the action immediately of control device 220 controls immediately the action of the trip(ping) circuit 120, and the behavior of protector is referred to as
Fast tripping protection, the fast tripping protection can also be correspondingly used as the failure title of equipment.Measurement and electricity of the protector to ac bus 230
Cable 240 is similar to, and is not detailed herein.
Above-mentioned first predetermined value and third predetermined value are for different equipment or in varied situations and differ.
With further reference to Fig. 2, control device 220 can be independently mounted in the top cut-off of trip(ping) circuit 120, but
It is that the present invention is not restricted to this.
Preferably, the targeted equipment of above-mentioned protector can be transformer or generator, and the present invention is not restricted to
This, current collecting device 210 can also be serially connected at the neutral point of transformer or generator windings, under normal circumstances, in this
Property point at electric current be zero-sequence current, and under failure condition, the electric current at the neutral point may be in 1A～3A.Adopt in electric current
Acquisition means 210 measure electric current at the neutral point more than in the case of second predetermined value (e.g., more than 1A), and control device 220 is controlled
Make the trip(ping) circuit 120 to work.The behavior of protector is referred to as ground protection, and the ground protection also can be correspondingly used as setting
Standby failure title.
In one embodiment, the protector of equipment provided by the utility model can also include：Storage device is (in figure not
Illustrate), it can be integrated with control device 220, one or more of following for storing：Current collecting device
During acquisition target (e.g., ac bus, cable, neutral point), current acquisition corresponding to 210 current values for being gathered, current value
Between, the failure title (e.g., overcurrent protection, fast tripping protection, ground protection) of equipment.To facilitate the user can at any time from storage device
Middle these data of extraction.
In another embodiment, the protector of equipment provided by the utility model can also include：Display device is (in figure
It is not shown), it can also be integrated with control device 220, one or more of following for showing：Current acquisition is filled
Put acquisition target (e.g., ac bus, cable, neutral point), the current acquisition corresponding to 210 current values for being gathered, current value
Time, the failure title (e.g., overcurrent protection, fast tripping protection, ground protection) of equipment.To facilitate the user can at any time in the display
These data are watched on device.
In one embodiment, control device 220 can be relay protector, but the utility model is not restricted to this.
By the way that protector to be arranged on the outside of trip(ping) circuit in the utility model, can switch back service power is ensured
In the case of the stable operation of road, the improvement cost of protector is effectively reduced.
Preferred embodiment of the present utility model is described in detail above in association with accompanying drawing, but, the utility model is not limited
Detail in above-mentioned embodiment, in range of the technology design of the present utility model, can be to skill of the present utility model
Art scheme carries out various simple variants, and these simple variants belong to protection domain of the present utility model.
It is further to note that each particular technique feature described in above-mentioned specific embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the utility model is to each
Plant possible combination no longer separately to illustrate.
Additionally, can also be combined between a variety of embodiments of the present utility model, as long as it is not disobeyed
Thought of the present utility model is carried on the back, it should equally be considered as content disclosed in the utility model.
Claims (8)
1. a kind of protector of equipment, it is characterised in that the protector includes：
One or more current collecting devices, are serially connected on the cable of the equipment and/or ac bus, for gathering the electricity
The electric current of cable and/or ac bus；And
Control device, is installed on the outside of the trip(ping) circuit of the equipment, is more than in the electric current of the cable and/or ac bus
In the case of first predetermined value, the trip(ping) circuit work is controlled.
2. protector according to claim 1, it is characterised in that the control device is installed on the upper of the trip(ping) circuit
Side.
3. protector according to claim 1, it is characterised in that the equipment is transformer or generator.
4. protector according to claim 3, it is characterised in that one or more of current collecting devices are also concatenated
At the neutral point of the equipment,
More than in the case of second predetermined value, the control device controls the trip(ping) circuit work to electric current at the neutral point
Make.
5. protector according to claim 1, it is characterised in that the protector also includes one of following or many
Person：
Storage device, integrates with the control device, is adopted for storing one or more of current collecting devices
The current value of collection, current value acquisition time and failure title；And
Display device, integrates with the control device, for showing that one or more of current collecting devices are adopted
The current value of collection, current value acquisition time and failure title.
6. protector according to claim 1, it is characterised in that the control device is relay protector.
7. protector according to claim 1, it is characterised in that the current collecting device is Current Transmit.
8. a kind of protector of equipment, it is characterised in that the protector includes：
One or more current collecting devices, are serially connected on the cable of the equipment and/or ac bus, for gathering the electricity
The electric current of cable and/or ac bus；And
Control device, is installed on the outside of the trip(ping) circuit of the equipment, is used for：
In the case where the electric current of the cable and/or ac bus is less than third predetermined value more than first predetermined value, time delay
The trip(ping) circuit work is controlled,
In the case where the electric current of the cable and/or ac bus is more than the third predetermined value, the tripping operation is controlled immediately
Loop works.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621186337.7U CN206117131U (en) | 2016-11-04 | 2016-11-04 | Protector of equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621186337.7U CN206117131U (en) | 2016-11-04 | 2016-11-04 | Protector of equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206117131U true CN206117131U (en) | 2017-04-19 |
Family
ID=58524838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621186337.7U Active CN206117131U (en) | 2016-11-04 | 2016-11-04 | Protector of equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206117131U (en) |
-
2016
- 2016-11-04 CN CN201621186337.7U patent/CN206117131U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |