CN206353762U - Piezo-resistance demagnetization excitation control cabinet - Google Patents
Piezo-resistance demagnetization excitation control cabinet Download PDFInfo
- Publication number
- CN206353762U CN206353762U CN201720035030.5U CN201720035030U CN206353762U CN 206353762 U CN206353762 U CN 206353762U CN 201720035030 U CN201720035030 U CN 201720035030U CN 206353762 U CN206353762 U CN 206353762U
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- CN
- China
- Prior art keywords
- resistance
- piezo
- excitation
- cabinet
- control cabinet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005284 excitation Effects 0.000 title claims abstract description 21
- 230000005347 demagnetization Effects 0.000 title claims abstract description 12
- 238000009423 ventilation Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 230000008030 elimination Effects 0.000 abstract description 2
- 238000003379 elimination reaction Methods 0.000 abstract description 2
- 230000005389 magnetism Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010616 electrical installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The utility model discloses a kind of piezo-resistance demagnetization excitation control cabinet, including：Cabinet, the cabinet is internally provided with eliminationg, and the eliminationg is de-excitation resistance, one end of the de-excitation resistance is connected in series with piezo-resistance, and the de-excitation resistance and piezo-resistance are connected in parallel with rectifier bridge, be connected in parallel with rotor.With the above mentioned technical proposal, a kind of piezo-resistance demagnetization excitation control cabinet that the utility model is provided, motor operating produces high voltage when excitation starts, equipment is caused to damage, pass through piezo-resistance high voltage conduction low pressure cut-off characteristics, it is connected in parallel in magnetism elimination circuit, unloads energy rapidly in a short time, the electric current that then puts into excitation completes synchronous motor startup operation.
Description
Technical field
The utility model is related to electrical installation, more particularly to a kind of piezo-resistance demagnetization excitation control cabinet.
Background technology
Common power frequency supply is exactly become direct current by the effect of excitation control cabinet by rectification.Control circuit is reinformed,
The height of VD can be changed.DC voltage will be exported turning for generator is introduced by breaker and slip-ring brush
Son, is used as the field power supply of generator.Excitation control cabinet generally comprises control circuit and breaker portion, and also including for having is controllable
Silicon rectifier part.Excitation control cabinet typically all carries automatic function：Such as sets target from motion tracking, according to voltage and load from
Dynamic excitation, automatic automatic field forcing, automatic protection tripping operation etc..Also normal service data is shown and fault alarm.
As traditional excitation cubicle shortcoming deficiency occurs in new technique, progressively embodiment mainly fault rate is higher, complicated,
Inconvenient maintenance, control accuracy is low.Piezo-resistance demagnetization excitation control cabinet is by using of the new technology, and the application of new original paper, which is improved, to be set
Standby performance solves above mentioned problem.Positive role is served to product technology upgrading.
Utility model content
The utility model discloses a kind of piezo-resistance demagnetization excitation control cabinet, including：Cabinet, the inside of the cabinet is set
Eliminationg is equipped with, the eliminationg is de-excitation resistance, and one end of the de-excitation resistance is connected in series with piezo-resistance, described
De-excitation resistance and piezo-resistance are connected in parallel with rectifier bridge, are connected in parallel with rotor.
Touch panel and ventilation blower are provided with the cabinet.
By adopting the above-described technical solution, a kind of piezo-resistance demagnetization excitation control cabinet that the utility model is provided, is encouraged
Motor operating produces high voltage during magnetic starting, and equipment is caused to damage, by piezo-resistance high voltage conduction low pressure cut-off characteristics, and
It is associated in magnetism elimination circuit, unloads energy rapidly in a short time, the electric current that then puts into excitation completes synchronous motor startup operation.Due to it
It is simple in construction, production is not only convenient for, and also cost is very cheap suitable for being widely popularized.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in application, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model cabinet；
Fig. 2 is the circuit theory diagrams of the utility model cabinet.
Embodiment
To make the technical solution of the utility model and advantage clearer, with reference to attached in the utility model embodiment
Figure, clear complete description is carried out to the technical scheme in the utility model embodiment：
A kind of piezo-resistance demagnetization excitation control cabinet as shown in Figure 1, including：Cabinet 1, being internally provided with for cabinet 1 is gone out
Magnet ring section, eliminationg is de-excitation resistance 2, and one end of de-excitation resistance 2 is connected in series with piezo-resistance 3, de-excitation resistance 2 and pressure-sensitive
Resistance 3 is connected in parallel with rectifier bridge 4, is connected in parallel with rotor 5.
Under working condition：During synchronous motor startup, the Exciting Windings for Transverse Differential Protection of rotor 5 sensing alternating voltage, due to eliminationg
De-excitation resistance 2 and the resistance of piezo-resistance 3 is larger starts equivalent to open-circuit condition, induced voltage drastically raises, and works as induced voltage
Reach after certain value, the breakdown conducting of piezo-resistance 3, pass through the formation discharge loop of de-excitation resistance 2.Gone out after putting into excitation this loop
Shut-off, motor is just upper to be run.
Further, as shown in Figure 2：Touch panel 11 and ventilation blower 12 are provided with the cabinet 1.User can lead to
The specific work process progress control in real time and operation of 11 pairs of the touch panel piezo-resistance demagnetization excitation control cabinet are crossed, it is convenient
The use of user.Ventilation blower 12 plays a part of radiating to cabinet 1.
It is described above, only the utility model preferably embodiment, but protection domain of the present utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model is disclosed, according to this practicality
New technical scheme and its utility model design are subject to equivalent substitution or change, should all cover in protection model of the present utility model
Within enclosing.
Claims (2)
1. a kind of piezo-resistance demagnetization excitation control cabinet, it is characterised in that including：Cabinet (1), the inside of the cabinet (1) is set
There is eliminationg, the eliminationg is de-excitation resistance (2), and one end of the de-excitation resistance (2) is connected in series with piezo-resistance
(3), the de-excitation resistance (2) and piezo-resistance (3) are connected in parallel with rectifier bridge (4), are connected in parallel with rotor (5).
2. a kind of piezo-resistance demagnetization excitation control cabinet according to claim 1, is further characterized in that：The cabinet (1)
On be provided with touch panel (11) and ventilation blower (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720035030.5U CN206353762U (en) | 2017-01-12 | 2017-01-12 | Piezo-resistance demagnetization excitation control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720035030.5U CN206353762U (en) | 2017-01-12 | 2017-01-12 | Piezo-resistance demagnetization excitation control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206353762U true CN206353762U (en) | 2017-07-25 |
Family
ID=59348879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720035030.5U Expired - Fee Related CN206353762U (en) | 2017-01-12 | 2017-01-12 | Piezo-resistance demagnetization excitation control cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206353762U (en) |
-
2017
- 2017-01-12 CN CN201720035030.5U patent/CN206353762U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170725 |