CN206099364U - Double -fed is heating system for converter control cabinet - Google Patents
Double -fed is heating system for converter control cabinet Download PDFInfo
- Publication number
- CN206099364U CN206099364U CN201620998696.6U CN201620998696U CN206099364U CN 206099364 U CN206099364 U CN 206099364U CN 201620998696 U CN201620998696 U CN 201620998696U CN 206099364 U CN206099364 U CN 206099364U
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- CN
- China
- Prior art keywords
- switch board
- heater
- ups power
- control contactor
- ups
- 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
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Abstract
The utility model relates to a double -fed is heating system for converter control cabinet, its technical characterstic lies in: including temperature controller, UPS power control contactor, switch board heater power control contactor, heater, UPS power and switch board master control power, UPS power control contactor comprises UPS power control contactor coil and UPS power control contactor contact switch, and with the switching that is used for controlling the UPS power is connected to the UPS source phase, switch board heater power control contactor with the heater is connected the switching that is used for the control heater. The utility model discloses the performance avoiding in the double -fed converter control cabinet device to use under the lower temperature and arouse and the reduction in life -span avoid the condensation to cause non - human error accident such as short circuit, are the suitable operating environment of double -fed converter control cabinet device creation promptly.
Description
Technical field
The utility model belongs to double-feed current transformer technical field, is related to double-feed current transformer switch board, especially a kind of double-fed
Current transformer switch board heating system.
Background technology
At present, because double-feed current transformer has the operation of optimization wind generator system, the speed change in wide wind speed range is realized
Constant frequency generation, improves the working condition of fan efficiency and chain, reduces generator loss, improves operational efficiency, lifts wind energy
The advantages of utilization rate effect, in being widely used in wind generator system.Double-feed current transformer is by double-fed asynchronous wind-power electricity generation
The rotor of machine carries out excitation so that the amplitude of the stator side output voltage of double-fed generator, frequency and phase place are identical with electrical network, and
And can as needed carry out active and idle independent uneoupled control.By control dual-feed asynchronous wind power generator realize it is soft simultaneously
Net, reduces the adverse effect that grid-connected dash current is caused to motor and electrical network.
Decisive role is played in safe operation of the double-feed current transformer switch board to wind generator system, but existing double-fed becomes
Stream device switch board still suffers from following some problem：(1) it is big due to being provided with the closing switch board body of double-feed current transformer switch board
The electric elements of amount, therefore condensation can be produced when cabinet body temperature drops to uniform temperature, it is attached to electrical body surface, Yi Fa
Life is climbed electricity, flashover, short circuit and the phenomenon such as punctures, accidents caused, the safety of serious threat power system；(2) have many in cabinet
Electric elements have certain requirement to environment temperature, cabinet interior temperature spend it is low also result in its unstable properties, precision is reduced, made
Its mechanical life shortens, and to the safe operation of equipment greatly threat is caused；(3) heating of existing double-feed current transformer switch board
Device cannot be avoided when switch board is just switched on master control power initiation, due to in-cabinet temperature it is too low, to ups power in cabinet and other
The infringement that components and parts are caused.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of reasonable in design and can be in switch board
When being just switched on master control power initiation, quickly solve the problems, such as that cabinet interior temperature spends low, the double-fed of guarantee electrical equipment safe operation
Current transformer switch board heating system.
The utility model solves its technical problem and takes technical scheme below to realize：
A kind of double-feed current transformer switch board heating system, including temperature controller, ups power control contactor, control
Heater counter power supply contactor, heater, ups power and switch board master control power supply；The ups power control contactor by
Ups power control contactor coil and ups power control contactor contact switch are constituted, and the use that is connected with the ups power
In the opening and closing of control ups power；The switch board heater power source control contactor is connected for controlling with the heater
The opening and closing of heater；The zero line side of the switch board master control power supply respectively with one end of the ups power control contactor coil
It is connected with one end of switch board heater power source control contactor；The other end difference of the ups power control contactor coil
It is connected with the zero line of the switch board master control power supply and one end of ups power control contactor contact switch；The ups power control
The other end of contacts of contactor switch processed is connected respectively with the zero line and temperature controller of the switch board master control power supply；Institute
State the switch board heater power source control contactor other end to be connected with temperature controller.
And, the temperature controller includes 3 contacts, and the first contact and the switch board of the temperature controller add
One end of hot device power supply contactor is connected；Second contact of the temperature controller and the switch board master control power supply
Zero line is connected；3rd contact of the temperature controller and one end phase of the ups power control contactor contact switch
Connection.
Advantage of the present utility model and good effect are：
1st, the utility model can avoid device in double-feed current transformer switch board at a lower temperature using and the property that causes
Can be with the reduction in life-span, it is to avoid condensation causes the accidents beyond control such as short circuit, and as double-feed current transformer switch board device is created suitable
Running environment.
2nd, the utility model when environment temperature is unsatisfactory for temperature conditionss in cabinet, is controlled after switch board connects master control power supply
Heater processed heats and disconnects ups power, and device does not go up electricity in cabinet；After temperature meets entry condition, heater stops heating,
Ups power starts power supply, electricity on inverter controller and its control loop.The utility model effectively prevent when switch board just connects
During logical master control power initiation, due to in-cabinet temperature it is too low, the infringement that ups power in cabinet and other components and parts are caused, it is ensured that become
Stream device normally starts at low ambient temperatures, extends device service life in cabinet, ensures the safe operation of wind generator system.
Description of the drawings
Fig. 1 is circuit controling drawing of the present utility model.
Specific embodiment
The utility model embodiment is described in further detail below in conjunction with accompanying drawing：
A kind of double-feed current transformer switch board heating system, as shown in figure 1, including temperature controller ST1, ups power control
Contactor processed, switch board heater power source control contactor, heater, ups power and switch board master control power supply；The UPS is electric
Source control contactor is made up of ups power control contactor contact switch KM1 and ups power control contactor coil-KM1, and
It is connected for the opening and closing for controlling ups power with the ups power；The switch board heater power source control contactor includes control
Heater counter power supply contactor coil-KM2 processed, and be connected for the opening and closing for controlling heater with the heater；Institute
State the zero line side of switch board master control power supply to heat with the A2 ends of the ups power control contactor coil-KM1 and switch board respectively
The A2 ends of device power supply contactor coil-KM2 are connected；The A1 ends of ups power control contactor coil-KM1 respectively with
The zero line of the switch board master control power supply is connected with one end of ups power control contactor contact switch KM1；The ups power
The other end of control contactor contact switch KM1 respectively with the zero line and temperature controller ST1 of the switch board master control power supply
The 3rd contact be connected；The A1 ends of the switch board heater power source control contactor coil-KM2 and temperature controller ST1
It is connected.
Wherein, the temperature controller includes 3 contacts, the first contact and the control of the temperature controller ST1
The A1 ends of heater counter power supply contactor coil-KM2 are connected；Second contact of the temperature controller ST1 with it is described
The zero line of switch board master control power supply is connected；3rd contact of the temperature controller ST1 contacts with ups power control
One end of device contact switch KM1 is connected.
Operation principle of the present utility model is：
The utility model is a kind of double-feed current transformer control arranged to coordinate current transformer normally to start at low ambient temperatures
Cabinet heating system processed.The double-feed current transformer switch board heating system is unsatisfactory for entry condition (temperature in environment temperature>-15
DEG C) when heating environment in the cabinet meet entry condition till.After switch board connects control power supply, heating system can be according to cabinet
Interior environment temperature control heater, such as temperature are too low to will be kept off ups power, and rear end inverter controller and other loops do not have
Power supply, system is in holding state, and starts heater, and such as temperature reaches requirement, and ups power is powered；After control power supply is powered,
Such as temperature change, when being unsatisfactory for environmental condition, the heating system of the present invention can task again, but be not turned off ups power.
After switch board connects master control power supply, when environment temperature is unsatisfactory for entry condition, temperature controller ST1 connects the
One contact and the 3rd contact, disconnect the second contact and the 3rd contact, control heater heating, and disconnect ups power, in switch board
Device does not go up electricity；After environment temperature meets entry condition, temperature controller ST1 connects the second contact and the 3rd contact, disconnects
First contact and the 3rd contact, heater stops heating, and control contactor coil-KM1 is powered for ups power, and ups power is powered
Afterwards, electricity, ups power control contactor contact switch KM1 self-lockings, if temperature is again in inverter controller and its control loop
Less than entry condition, ups power not power-off, only heat.
It is emphasized that embodiment described in the utility model is illustrative, rather than it is determinate, therefore this reality
It is every new according to this practicality by those skilled in the art with new including the embodiment being not limited to described in specific embodiment
The other embodiment that the technical scheme of type draws, also belongs to the scope of the utility model protection.
Claims (2)
1. a kind of double-feed current transformer switch board heating system, it is characterised in that：Connect including temperature controller, ups power control
Tentaculum, switch board heater power source control contactor, heater, ups power and switch board master control power supply；The ups power control
Contactor processed is made up of ups power control contactor coil and ups power control contactor contact switch, and electric with the UPS
Source is connected for the opening and closing for controlling ups power；The switch board heater power source control contactor is connected with the heater
Connect the opening and closing for controlling heater；The zero line side of the switch board master control power supply respectively with the ups power control contactor
One end of coil is connected with one end of switch board heater power source control contactor；The ups power control contactor coil
The other end is connected respectively with the zero line of the switch board master control power supply and one end of ups power control contactor contact switch；
The other end of the ups power control contactor contact switch respectively with the zero line and temperature control of the switch board master control power supply
Device is connected；The switch board heater power source control contactor other end is connected with temperature controller.
2. a kind of double-feed current transformer switch board heating system according to claim 1, it is characterised in that：The temperature control
Device processed includes 3 contacts, the first contact of the temperature controller and the one of the switch board heater power source control contactor
End is connected；Second contact of the temperature controller is connected with the zero line of the switch board master control power supply；The temperature
3rd contact of controller is connected with one end of the ups power control contactor contact switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620998696.6U CN206099364U (en) | 2016-08-30 | 2016-08-30 | Double -fed is heating system for converter control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620998696.6U CN206099364U (en) | 2016-08-30 | 2016-08-30 | Double -fed is heating system for converter control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206099364U true CN206099364U (en) | 2017-04-12 |
Family
ID=58478292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620998696.6U Expired - Fee Related CN206099364U (en) | 2016-08-30 | 2016-08-30 | Double -fed is heating system for converter control cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206099364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361217A (en) * | 2018-12-21 | 2019-02-19 | 天津浩源慧能科技有限公司 | A kind of feeder automation analogue system |
-
2016
- 2016-08-30 CN CN201620998696.6U patent/CN206099364U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361217A (en) * | 2018-12-21 | 2019-02-19 | 天津浩源慧能科技有限公司 | A kind of feeder automation analogue system |
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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: 20170412 Termination date: 20210830 |