CN203660506U - Multivoltage automatic switching device on input side of transformer - Google Patents
Multivoltage automatic switching device on input side of transformer Download PDFInfo
- Publication number
- CN203660506U CN203660506U CN201320699973.XU CN201320699973U CN203660506U CN 203660506 U CN203660506 U CN 203660506U CN 201320699973 U CN201320699973 U CN 201320699973U CN 203660506 U CN203660506 U CN 203660506U
- Authority
- CN
- China
- Prior art keywords
- voltage
- multivoltage
- automatic switching
- gear
- contactor
- 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.)
- Withdrawn - After Issue
Links
Images
Abstract
The utility model provides a multivoltage automatic switching device on the input side of a transformer. The multivoltage automatic switching device comprises a plurality of voltage monitoring relays, a plurality of contactors and a plurality of voltage gears, wherein the voltage monitoring relays are used for monitoring voltage between phases and can monitor the upper limit and the lower limit of voltage values; the contactors are respectively connected into corresponding main circuits of primary sides of the transformer; the first voltage gear corresponds to the first contactor, and the ith voltage gear corresponds to the ith contactor; the first voltage gear corresponds to the first voltage monitoring relay, and the jth voltage gear corresponds to the jth voltage monitoring relay; N is an integer not smaller than 2, i=2, 3, 4, ..., N, and j=2, 3, 4, ..., N. The multivoltage automatic switching device solves the problems that offshore container module at present needs to be adapted to the wide supply voltage ranges of different production platforms or oil production boats, potential safety hazards are caused by manual operation, operation is inconvenient, and the like.
Description
Technical field
The utility model relates to voltage automatic switching device, is specifically related to the following three-phase multivoltage of a kind of 690V automatic switching control equipment.
Background technology
In production platform or production vessel, main power source carrys out self generating sets more, the platform of country variant or production vessel generating set have different power supply output, at present, conventional several supply voltages are 380V, 415V, 440V, 480V, and the supply voltage of 600V, 660V and 690V also occurs in addition.When offshore container service module uses as office, laboratory or workplace or even dormitory in platform or production vessel, the specified power-frequency voltage of the many uses of inner electrical equipment, as three-phase 380V, 400V and 415V, single-phase 220V, 230V or 240V.So, in the time that platform or production vessel switchgear house do not mate with Container Services modular power source, must first through transformer, supply power voltage be become to the voltage that the electrical equipment in container can be accepted.
General scheme is that transformer is integrated in inside modules by Container Services module supplier, makes its primary side possess multiple voltage input specification, to mate different platforms or production vessel electric power system at present.Transformer primary side configuration manual selection switch, according to Container Services module place platform or production vessel supply power voltage specification, manual operation selector switch makes transformer primary side voltage option conform to platform power voltage.
The drawback of this kind of mode is, must go operation by the professional electrician or the Electrical Engineer that possess qualification on platform, and when in fact Container Services module is normally used, operating personnel in case are difficult to meet this condition, amateur electric personnel are unaware of voltage and select the wrong impact on follow-up equipment, thereby cause the damage of follow-up power consumption equipment, especially some Container Services modules are when for example malleation storehouse needs relatively more complicated operation, and the probability that problem occurs is larger.According to current experience, all can there be every year some service modules to cause device damage because of problem for this reason, have to exit to keep in repair even from platform or production vessel inside is rebuild.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide the following three-phase multivoltage of a kind of 690V automatic switching control equipment, this automatic switching control equipment can keep the applicability of transformer to different platform voltage, make the transformer primary side voltage option can Auto-matching platform power specification, thereby can thoroughly eliminate the hidden danger that manual operation brings.
For achieving the above object, the utility model is by the following technical solutions:
A kind of transformer input side multivoltage automatic switching control equipment, comprising:
Multiple voltage monitoring relays, for monitoring voltage between phase and phase upper and lower bound that can monitoring voltage value;
Multiple contactors, described multiple contactors are connected in the corresponding main line of transformer primary side;
Multiple voltage gears, the first voltage gear is corresponding to the first contactor, and i voltage gear is corresponding to i contactor; The first voltage gear is corresponding to the first voltage monitoring relay, and j voltage gear is corresponding to j voltage monitoring relay;
Wherein, N is not less than 2 integer, i=2, and 3,4 ..., N; J=2,3,4 ..., N.
Further, each voltage monitoring relay comprises voltage monitoring relay upper limit contact and voltage monitoring relay lower limit contact.
Further, the controlled circuit of described multiple contactors drives, and the coil drive voltage of described contactor is provided by upper end control cabinet.
Further, described multiple voltage gear comprises 400V, 440V, 480V, 600V and five voltage gears of 690V.
Multivoltage automatic switching control equipment of the present utility model, comprise voltage monitoring relay, contactor, and according to voltage specification conventional in each production platform or production vessel, 380V to 690V voltage is subdivided into several little scopes, use voltage monitoring relay to detect also output feedback signal to control circuit to each little voltage range, control circuit judges current supply power voltage according to the signal receiving, and select corresponding supply line by the break-make of control contactor, realize to follow-up load device automatic power.Multivoltage automatic switching control equipment of the present utility model can be applicable to the following transformer primary side of 690V multivoltage and automatically selects switching or multivoltage power consumption equipment automatic switchover power supply, solve current offshore container module and need to adapt in different production platforms or production vessel the potential safety hazard that power supply voltage range, manual operation cause widely, and the problem such as inconvenient operation.
Brief description of the drawings
Fig. 1 is the control circuit schematic diagram of transformer input side multivoltage automatic switching control equipment of the present utility model;
Fig. 2 is another control circuit schematic diagram of transformer input side multivoltage automatic switching control equipment of the present utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The definition of voltage gear: the conventional several supply voltages of current platform or production vessel are 380V, 415V, 440V, 480V, and 600V, 660V and 690V also occur in addition, are generally three-phase without zero line system.Transformer is output as 400V tri-and is added zero line.From transformation ratio judgement, primary side 380V and 415V can merge into one grade, contain the voltage (380V, 400V and 415V) of 380-415V scope, set it as 400V voltage gear; In like manner 660V and 690V can merge into one grade, are as the criterion with the transformation ratio of 690V.So voltage gear is divided into: the first voltage gear 400V, second voltage gear 440V, tertiary voltage gear 480V, the 4th voltage gear 600V and five voltage gears of the 5th voltage gear 690V.
As shown in Figure 1, the technical solution of the utility model is the following transformer input side of a set of 690V multivoltage automatic switching control equipment, power supply is three phase mains L1, L2, L3, transformer is 20KVA, primary side is three-phase 400-440-480-660-690V, secondary side is that 400V tri-is added zero line and 110V is single-phase, this automatic switching control equipment comprises the first voltage monitoring relay K U1, second voltage control relay KU2, tertiary voltage control relay KU3, the 4th voltage monitoring relay K U4 and the 5th voltage monitoring relay K U5, wherein the first voltage gear 400V, second voltage gear 440V, tertiary voltage gear 480V, the 4th voltage gear 600V and the 5th voltage gear 690V correspond respectively to the first voltage monitoring relay K U1, second voltage control relay KU2, tertiary voltage control relay KU3, the 4th voltage monitoring relay K U4 and the 5th voltage monitoring relay K U5.
In addition, also comprise the first contactor K1, the second contactor K2, the 3rd contactor K3, the 4th contactor K4 and the 5th contactor K5, each contactor is connected in the corresponding main line of transformer primary side, wherein the first voltage gear 400V, second voltage gear 440V, tertiary voltage gear 480V, the 4th voltage gear 600V and the 5th voltage gear 690V correspond respectively to the first contactor K1, the second contactor K2, the 3rd contactor K3, the 4th contactor K4 and the 5th contactor K5, the corresponding contactor of each voltage gear, controlled circuit drives, the coil drive voltage of contactor is provided by upper end control cabinet.
The definition of each voltage gear upper and lower bound: supply power voltage has deviation compared with rated value in a certain amount of time; in order to make this deviation can not cause transformer output voltage too high or too low; to protect follow-up load; and coordinate the use of voltage monitoring relay, the upper and lower bound of each voltage gear is defined as follows:
The first voltage gear 400V: the upper limit of the first voltage gear is 419V, and the lower limit of the first voltage gear is 370V, within the scope of 370V-419V, the first voltage monitoring relay K U1 can judge that voltage is as 400V shelves;
The 4th voltage gear 600V: the upper limit of the 4th voltage gear is 620V, and the lower limit of the 4th voltage gear is 570V, within the scope of 570V-620V, the 4th voltage monitoring relay K U4 can judge that voltage is as 600V shelves;
The 5th voltage gear 690V: the upper limit of the 5th voltage gear is 720V, and the lower limit of the 5th voltage gear is 650V, within the scope of 650V-720V, the 5th voltage monitoring relay K U5 can judge that voltage is as 690V shelves.Those skilled in the art should be understood that the upper limit of the 5th voltage gear can set according to voltage monitoring relay description, for the upper limit of voltage monitoring relay the 5th voltage gear of different brands or different.
The use of three-phase-voltage monitoring relay: three-phase-voltage monitoring relay maximum amount is decided to be 690V, be mainly used in monitoring voltage between phase and phase, and the upper and lower bound of monitoring voltage value can be set, each voltage monitoring relay comprises one group of voltage monitoring relay upper limit contact and voltage monitoring relay lower limit contact, this bound contact is normally-open normally-close contact (SPDT), when monitored voltage is prescribed a time limit lower than lower limit or higher than upper, the conversion of normally-open normally-close contact, acts accordingly control circuit.The effect of three-phase-voltage monitoring relay is to judge institute's monitoring voltage is in which gear, every kind of corresponding voltage monitoring relay of voltage gear.
Transformer input side multivoltage automatic switching control equipment of the present utility model can be made independent control cabinet, also relevant configuration original paper can be integrated in to other control system or be installed in transformer unit, as shown in Figure 2, control power supply and take from upper end control cabinet, wherein, A, B represent the two ends of contactor coil
2. transformer is in the time of normal operating conditions, if primary side voltage raises or is reduced to other voltage gears, voltage monitoring relay and control circuit can immediate reactions, the voltage gear that drives respective lines contactor that primary side voltage is switched to conform to, and continuous firing.
3. contactor K1, K2, K3, K4 and K5 correspond respectively to voltage gear 400V, 440V, 480V, 600V and 690V, when main line voltage is in a certain voltage monitoring relay K Ux (integer that wherein x is 1-4, between the bound of voltage gear down together) time, its bound contact point (remaining open of disconnection of being all failure to actuate, closed is still closed), this voltage monitoring relay judges that this voltage is its corresponding voltage gear, the lower limit contact of the voltage gear of the voltage monitoring relay K Ux+1 that high one-level voltage gear is corresponding must change, and (disconnection becomes closure, closure transfers disconnection to), jointly guarantee that by adjacent two voltage monitoring relay K Ux and KUx+1 correct voltage gear is chosen, then remove the contactor Kx that drives this voltage gear corresponding.Meanwhile, high one-level voltage gear the auxiliary normally opened contact of corresponding contactor Kx+1 be serially connected in the control circuit of contactor Kx, to avoid adjacent two voltage gears to occur switch on and cause device damage simultaneously.690V is in ceiling voltage gear (KU5, K5), be serially connected in by the upper limit normally opened contact of voltage monitoring relay K U4 in the control circuit of contactor K5, avoid K4 and K5 simultaneously electric.
The above embodiment has only expressed execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.
Claims (4)
1. a transformer input side multivoltage automatic switching control equipment, is characterized in that, comprising:
Multiple voltage monitoring relays, for monitoring voltage between phase and phase upper and lower bound that can monitoring voltage value;
Multiple contactors, described multiple contactors are connected in the corresponding main line of transformer primary side;
Multiple voltage gears, the first voltage gear is corresponding to the first contactor, and i voltage gear is corresponding to i contactor; The first voltage gear is corresponding to the first voltage monitoring relay, and j voltage gear is corresponding to j voltage monitoring relay;
Wherein, N is not less than 2 integer, i=2, and 3,4 ..., N; J=2,3,4 ..., N.
2. transformer input side multivoltage automatic switching control equipment according to claim 1, is characterized in that, each voltage monitoring relay comprises voltage monitoring relay upper limit contact and voltage monitoring relay lower limit contact.
3. transformer input side multivoltage automatic switching control equipment according to claim 1, is characterized in that, the controlled circuit of described multiple contactors drives, and the coil drive voltage of described contactor is provided by upper end control cabinet.
4. transformer input side multivoltage automatic switching control equipment according to claim 1, is characterized in that, described multiple voltage gears comprise 400V, 440V, 480V, 600V and five voltage gears of 690V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320699973.XU CN203660506U (en) | 2013-11-07 | 2013-11-07 | Multivoltage automatic switching device on input side of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320699973.XU CN203660506U (en) | 2013-11-07 | 2013-11-07 | Multivoltage automatic switching device on input side of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203660506U true CN203660506U (en) | 2014-06-18 |
Family
ID=50926860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320699973.XU Withdrawn - After Issue CN203660506U (en) | 2013-11-07 | 2013-11-07 | Multivoltage automatic switching device on input side of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203660506U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560488A (en) * | 2013-11-07 | 2014-02-05 | 太仓莫迪思能源工程有限公司 | Multivoltage automatic switching device on input side of transformer |
-
2013
- 2013-11-07 CN CN201320699973.XU patent/CN203660506U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560488A (en) * | 2013-11-07 | 2014-02-05 | 太仓莫迪思能源工程有限公司 | Multivoltage automatic switching device on input side of transformer |
| CN103560488B (en) * | 2013-11-07 | 2016-03-16 | 太仓莫迪思能源工程有限公司 | A kind of transformer input side multivoltage automatic switching control equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108649592B (en) | Multifunctional automatic phase changing system and method for medium and low voltage line | |
| CN207652128U (en) | A kind of dual power supply uninterruptible power system | |
| CN104752968A (en) | Power box with dual power supplies | |
| CN203660506U (en) | Multivoltage automatic switching device on input side of transformer | |
| CN104471815A (en) | Bipolar high/low voltage converter station for series mtdc system | |
| CN103311889A (en) | Manual switching protection circuit for dual power supplies | |
| CN209297536U (en) | A kind of nuclear phase training device | |
| CN217689239U (en) | Multi-voltage-level energy storage converter test platform | |
| KR101067594B1 (en) | Customer electricity facilities management system | |
| CN103560488B (en) | A kind of transformer input side multivoltage automatic switching control equipment | |
| CN204732875U (en) | A kind of phase-lacking protective device | |
| CN206235869U (en) | A kind of control circuit of cooler | |
| CN206908520U (en) | A kind of on-load voltage regulating switch | |
| CN203826782U (en) | Shore power connection box | |
| CN203434595U (en) | Dual power supply manual switch protection circuit | |
| CN203722328U (en) | Apparatus capable of automatically switch power frequency electric supply in case of UPS own faults | |
| CN208257496U (en) | Dual-power automatic switching formula heating tape current supply circuit | |
| CN202854219U (en) | Undervoltage, voltage loss, and phase loss detection circuit | |
| Abramovich et al. | Intelligent power system on the base of active-adaptive control and interaction between elements | |
| CN103303774A (en) | Dock door facility operation platform for multilevel public auxiliary shaft elevator | |
| CN204103593U (en) | A kind of Converter Station Valve cooling control system 24V DC power supply circuit | |
| CN202475002U (en) | Intelligent integrated power supply ATS | |
| CN217282229U (en) | Reactive power compensation device and rectification system | |
| CN203204335U (en) | Tap joint rising and falling instruction simulation apparatus | |
| CN205753345U (en) | A kind of phase-lacking protective device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140618 Effective date of abandoning: 20160316 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |