CN100459012C - Combined type intelligent alternating-current control and protector - Google Patents
Combined type intelligent alternating-current control and protector Download PDFInfo
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- CN100459012C CN100459012C CNB2005101252941A CN200510125294A CN100459012C CN 100459012 C CN100459012 C CN 100459012C CN B2005101252941 A CNB2005101252941 A CN B2005101252941A CN 200510125294 A CN200510125294 A CN 200510125294A CN 100459012 C CN100459012 C CN 100459012C
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Abstract
The invention relates to a compound intelligent dc controller and protector, which comprises three unaided dc control and protector electro-magnetism mechanisms and three unaided dc control and protector arc-control devices, wherein each unaided dc control and protector electro-magnetism mechanism is correspondent with each unaided dc control and protector arc-control device; three current transformers are separately covered in the stationary contact bridge of the three unaided dc control and protector arc-control devices. It can be putted through near the three-phase voltage zero point; when it comes to overload, off-phase, over voltage, less voltage or phase order converse, it can be opened when the three-phase current near the zero point; when it comes to shorted fault, the touching rod can be fast opened to cut off the shorted current.
Description
Technical field:
The present invention relates to a kind of composite type and exchange control and protector.
Background technology:
Xu Zhihong, Zhang Peiming are published in " intelligent AC contactor Zero current disjunction control technology " literary composition and the utility model patent " a kind of intelligent AC contactor " (patent No. is ZL00214192.2) of " electrician's electric energy new technology " the 4th phase in 2002 and have introduced the nonsynchronous intelligent AC contactor scheme of employing microprocessor control three-phase contact, have realized that three-phase contact electric current is all in the zero cross near disjunction.But this scheme all has certain requirement near 5ms to design, technology, experiment from the structure various Capacity AC Contactor one phase contacts of realization and other nonsynchronous time difference of two-phase contact disjunction, and especially it does not also have no-voltage turn-on power loss and various defencive function.
Summary of the invention:
Purpose of the present invention just provides a kind of combined type intelligent alternating-current control and protector; this electrical equipment can carry out connecting near three contact points of zero voltage that exchange control and protector contact arc-extinguishing device by monolithic processor control device; electric current is opened during near zero passage; contact is opened fast when short trouble takes place, cutting-off of short-circuit electric current.Have control and protection comprehensive function.
The object of the present invention is achieved like this, it comprises monolithic processor control device, exchange control with the protector electromagnetic mechanism, exchanges and controls and protector contact arc-extinguishing device, current sensor, it is characterized in that: the present invention includes: the interchange control of three platform independent and protector electromagnetic mechanism, the interchange control of three platform independent and protector contact arc-extinguishing device; Interchange control that every interchange control is corresponding one with the protector electromagnetic mechanism and protector contact arc-extinguishing device, interchange control of each and protector electromagnetic mechanism include one group moving iron core, static iron core, coil, reaction spring; Every exchanges control and includes one group movable contact bridge, moving contact, contact supporting, fixed contact, stationary contact bridge, arc-extinguish chamber with protector contact arc-extinguishing device.Movable contact bridge and moving contact are fixed on the contact supporting, and contact supporting is installed on the moving iron core, and every exchanges control and protector contact arc-extinguishing device and has only a contact mutually, only connects disjunction one phase current; All be with current sensor on the stationary contact bridge that every exchanges control and protector contact arc-extinguishing device therein.
The control of this intelligent AC is carved in due course to connect with the monolithic processor control device of protector and is exchanged control and protector electromagnetic mechanism coil current; the contacts that can guarantee three interchange controls and protector contact arc-extinguishing device are connected near zero point at three-phase voltage respectively exactly; requiring normal disjunction or transshipping; the phase failure; stall; overvoltage; under voltage; during faults such as phase sequence is anti-; monolithic processor control device is carved in due course and cut off to be exchanged control and protector electromagnetic mechanism coil current, can guarantee that three contacts that exchange control and protector contact arc-extinguishing device open during near zero passage at three-phase current respectively exactly.The monolithic processor control device fast shut-off exchanged control and protector electromagnetic mechanism coil current when this electrical equipment took place at short trouble, made three interchange controls open cutting-off of short-circuit electric current fast with the contact of protector contact arc-extinguishing device.
The present invention compared with prior art not only has the no-voltage turn-on power loss, is requiring normal disjunction or is transshipping the phase failure; stall, overvoltage is during fault such as under voltage, phase sequence are anti-; can accurately control; make the breaking arc energy still less, can realize that few arc or non-arc breaking are disconnected, have the controlled function of A.C. contactor and the defencive function of motor protector; energy fast shut-off short circuit current when short trouble takes place; have the defencive function of circuit breaker, have reliable and stable work, characteristics such as electric life height.Have control and protection comprehensive function.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a concrete structure schematic diagram of the present invention.
Fig. 3 is that the circuit part of monolithic processor control device of the present invention connects schematic block diagram.
Label declaration: A is a monolithic processor control device; B is for exchanging control and protector electromagnetic mechanism; C is for exchanging control and protector contact arc-extinguishing device; F is for exchanging the current sensor of control and protector; B1 is first and exchanges control and protector electromagnetic mechanism; C1 is first and exchanges control and protector contact arc-extinguishing device; B2 is second and exchanges control and protector electromagnetic mechanism; C2 is second and exchanges control and protector contact arc-extinguishing device; B3 is the 3rd and exchanges control and protector electromagnetic mechanism; C3 is the 3rd and exchanges control and protector contact arc-extinguishing device; Z is a rectification circuit; Z1 is first and exchanges control and protector master element; Z2 is second and exchanges control and protector master element; Z3 is the 3rd and exchanges control and protector master element; Z11 is first and exchanges control and protector retentive control element; Z12 is second and exchanges control and protector retentive control element; Z13 is the 3rd and exchanges control and protector retentive control element; X1 is first and exchanges control and protector coil; X2 is second and exchanges control and protector coil; X3 is the 3rd and exchanges control and protector coil; Y1 is the step-down control circuit; D is a single chip computer device; E1 is a control circuit; E2 is a control circuit; F1 is first current sensor that exchanges control and protector; F2 is second current sensor that exchanges control and protector; F3 is the 3rd current sensor that exchanges control and protector; M1 is for measuring first voltage sensor of certain line voltage; M2 is for measuring second voltage sensor of another line voltage; 1 is certain phase movable contact bridge; 2 is moving contact; 3 is contact supporting; 4 is fixed contact; 5 is the stationary contact bridge; 6 are moving iron core; 7 is static iron core; 8 is coil; 9 is arc-extinguish chamber; 10 is reaction spring.
Embodiment:
Among Fig. 1, Fig. 2, Fig. 3:
From Fig. 1, Fig. 2 as can be known, control exchanges control and protector electromagnetic mechanism B, exchanges control with protector contact arc-extinguishing device C and exchange and control and the current sensor F of protector respectively has three; Monolithic processor control device A control interchange control and protector electromagnetic mechanism B exchange control and exchange control and protector contact arc-extinguishing device C with protector electromagnetic mechanism B drive, and current sensor F is enclosed within and exchanges on control and the protector contact arc-extinguishing device.
From Fig. 2; Fig. 3 as can be known; first of monolithic processor control device A control exchanges control and protector electromagnetic mechanism B1; second exchanges control and protector electromagnetic mechanism B2; the 3rd exchanges control and protector electromagnetic mechanism B3; the circuit part of monolithic processor control device A; its annexation is that power supply Y is connected to the AC side of rectification circuit Z and the input of step-down control circuit Y1; the DC side of rectification circuit Z is connected to first and exchanges control and protector master element Z1; second exchanges control and protector master element Z2; the 3rd exchanges control and protector master element Z3; first interchange control is connected to first with protector master element Z1 output and exchanges control and protector coil X1; second interchange control is connected to second with protector master element Z2 output and exchanges control and protector coil X2; the 3rd interchange control is connected to the 3rd with protector master element Z3 output and exchanges control and protector coil X3; the output of step-down control circuit Y1 is connected to first through first interchange control with protector retentive control element Z11 and exchanges control and protector coil X1; the output of step-down control circuit Y1 is connected to second through second interchange control with protector retentive control element Z12 and exchanges control and protector coil X2; the output of step-down control circuit Y1 is connected to the 3rd through the 3rd interchange control with protector retentive control element Z13 and exchanges control and protector coil X3; the DC side other end of rectification circuit Z exchanges the control and the protector coil X1 other end respectively with first; second exchanges the control and the protector coil X2 other end; the 3rd exchanges the control and the protector coil X3 other end; another output of step-down control circuit Y1 joins; first delivery outlet 1 of single chip computer device D connects the input of first control circuit E1; the output of first control circuit E1 is connected to first control end that exchanges control and protector master element Z1; second delivery outlet 2 of single chip computer device D connects another input of first control circuit E1; another output of first control circuit E1 is connected to second control end that exchanges control and protector master element Z2; the 3rd delivery outlet 3 of single chip computer device D connects another input of first control circuit E1; another output of first control circuit E1 is connected to the 3rd control end that exchanges control and protector master element Z3; the 4th delivery outlet 4 of single chip computer device D connects the input of second control circuit E2; the output of second control circuit E2 is connected to first control end that exchanges control and protector retentive control element Z11; the 5th delivery outlet 5 of single chip computer device D connects another input of second control circuit E2; another output of second control circuit E2 is connected to second control end that exchanges control and protector retentive control element Z12; the 6th delivery outlet 6 of single chip computer device D connects another input of second control circuit E2; another output of second control circuit E2 is connected to the 3rd control end that exchanges control and protector retentive control element Z13; the output of the first current sensor F1 is connected to the A/D mouth 1 of single chip computer device D; the output of the second current sensor F2 is connected to the 2nd A/D mouth 2 of single chip computer device D; the output of the 3rd current sensor F3 is connected to the 3rd A/D mouth 3 of single chip computer device D; the 5th A/D mouth 5 of the output order sheet machine D of the 4th A/D mouth 4, the second voltage sensor M2 of the output order sheet machine D of the first voltage sensor M1.
As can be seen from Figure 2; movable contact bridge 1 is fixed on the contact supporting 3 with moving contact 2; contact supporting 3 is installed on the moving iron core 6; arc-extinguish chamber 9 covers movable contact bridge 1 and moving contact 2; first exchanges control and protector contact arc-extinguishing device C1 and has only a contact mutually; only connect disjunction one phase current; second exchanges control and protector contact arc-extinguishing device and has only a contact mutually; only connect another phase current of disjunction; the 3rd exchanges control and protector contact arc-extinguishing device and has only a contact mutually; only connect disjunction third phase electric current; current sensor F1 is enclosed within on the stationary contact bridge 5 of first interchange control and protector contact arc-extinguishing device; current sensor F2 is enclosed within on the stationary contact bridge 5 of second interchange control and protector contact arc-extinguishing device; current sensor F3 is enclosed within on the stationary contact bridge 5 of the 3rd interchange control and protector contact arc-extinguishing device; when connecting; monolithic processor control device A is to the first voltage sensor M1; the second voltage sensor M2 signal is sampled; and carve in due course and connect first interchange control and protector electromagnetic mechanism B1 coil; make first contact that exchanges control and protector contact arc-extinguishing device C1 in voltage closure during near zero passage; monolithic processor control device A carves in due course and connects second interchange control and protector electromagnetic mechanism B2 coil; make second contact that exchanges control and protector contact arc-extinguishing device C1 in voltage closure during near zero passage; monolithic processor control device A carves in due course and connects the 3rd interchange control and protector electromagnetic mechanism B2 coil; make second contact that exchanges control and protector contact arc-extinguishing device C1 in voltage closure during near zero passage
When operation; monolithic processor control device A is to the first voltage sensor M1; the second voltage sensor M2; the first current sensor F1; the second current sensor F2; the 3rd current sensor F3 signal is sampled; requiring normal disjunction or transshipping; the phase failure; stall; overvoltage; under voltage; during the anti-fault of phase sequence; monolithic processor control device A carves in due course and cuts off first interchange control and protector electromagnetic mechanism B1 coil current; first contact that exchanges control and protector contact arc-extinguishing device C1 opened during near zero passage at first phase current; monolithic processor control device A carves in due course and cuts off second interchange control and protector electromagnetic mechanism B2 coil current; second contact that exchanges control and protector contact arc-extinguishing device C2 opened during near zero passage at second phase current; monolithic processor control device A carves in due course and cuts off the 3rd interchange control and protector electromagnetic mechanism B3 coil current; the 3rd contact that exchanges control and protector contact arc-extinguishing device C3 opened during near zero passage at the third phase electric current; when being short-circuited fault; monolithic processor control device A cuts off three immediately and exchanges control and protector electromagnetic mechanism coil current, and three interchange controls are opened rapidly with the contact of protector contact arc-extinguishing device.
As shown in Figure 3; the circuit part of monolithic processor control device; its annexation is that power supply Y is connected to the AC side of rectification circuit Z and the input of step-down control circuit Y1; the DC side of rectification circuit Z is connected to first and exchanges control and protector master element Z1; second exchanges control and protector master element Z2; the 3rd exchanges control and protector master element Z3; first interchange control is connected to first with protector master element Z1 output and exchanges control and protector coil X1; second interchange control is connected to second with protector master element Z2 output and exchanges control and protector coil X2; the 3rd interchange control is connected to the 3rd with protector master element Z3 output and exchanges control and protector coil X3; the output of step-down control circuit Y1 is connected to first through first interchange control with protector retentive control element Z11 and exchanges control and protector coil X1; the output of step-down control circuit Y1 is connected to second through second interchange control with protector retentive control element Z12 and exchanges control and protector coil X2; the output of step-down control circuit Y1 is connected to the 3rd through the 3rd interchange control with protector retentive control element Z13 and exchanges control and protector coil X3; the DC side other end of rectification circuit Z exchanges the control and the protector coil X1 other end respectively with first; second exchanges the control and the protector coil X2 other end; the 3rd exchanges the control and the protector coil X3 other end; another output of step-down control circuit Y1 joins; first delivery outlet 1 of single chip computer device D connects the input of first control circuit E1; the output of first control circuit E1 is connected to first control end that exchanges control and protector master element Z1; second delivery outlet 2 of single chip computer device D connects another input of first control circuit E1; another output of first control circuit E1 is connected to second control end that exchanges control and protector master element Z2; the 3rd delivery outlet 3 of single chip computer device D connects another input of first control circuit E1; another output of first control circuit E1 is connected to the 3rd control end that exchanges control and protector master element Z3; the 4th delivery outlet 4 of single chip computer device D connects the input of second control circuit E2; the output of second control circuit E2 is connected to first control end that exchanges control and protector retentive control element Z11; the 5th delivery outlet 5 of single chip computer device D connects another input of second control circuit E2; another output of second control circuit E2 is connected to second control end that exchanges control and protector retentive control element Z12; the 6th delivery outlet 6 of single chip computer device D connects another input of second control circuit E2; another output of second control circuit E2 is connected to the 3rd control end that exchanges control and protector retentive control element Z13; the output of the first current sensor F1 is connected to the A/D mouth 1 of D; the output of the second current sensor F2 is connected to the 2nd A/D mouth 2 of D; the output of the 3rd current sensor F3 is connected to the 3rd A/D mouth 3 of D; the 5th A/D mouth 5 of the output order sheet machine D of the 4th A/D mouth 4, the second voltage sensor M2 of the output order sheet machine D of the first voltage sensor M1.
Claims (2)
1. a combined type intelligent alternating-current is controlled and protector, it comprises monolithic processor control device (A), exchange control with protector electromagnetic mechanism (B), exchanges and controls and protector contact arc-extinguishing device (C), current sensor (F), it is characterized in that, the control of described combined type intelligent alternating-current comprises with protector: three platform independent exchange control and protector electromagnetic mechanism (B1, B2, B3), the interchange control of three platform independent and protector contact arc-extinguishing device (C1, C2, C3); Interchange control that every interchange control is corresponding one with the protector electromagnetic mechanism and protector contact arc-extinguishing device, interchange control of each and protector electromagnetic mechanism (B1, B2, B3) include one group moving iron core (6), static iron core (7), coil (8), reaction spring (10); Every exchanges control and includes one group movable contact bridge (1), moving contact (2), contact supporting (3), fixed contact (4), stationary contact bridge (5), arc-extinguish chamber (9) with protector contact arc-extinguishing device;
Movable contact bridge (1) and moving contact (2) are fixed on the contact supporting (3), and contact supporting (3) is installed on the moving iron core (6), and every exchanges control and protector contact arc-extinguishing device (C1, C2, C3) and has only a contact mutually, only connects disjunction one phase current; All be with current sensor (F1, F2, F3) on the stationary contact bridge (5) that every exchanges control and protector contact arc-extinguishing device (C1, C2, C3) therein.
2; combined type intelligent alternating-current control according to claim 1 and protector; it is characterized in that: the circuit part of described monolithic processor control device (A); its annexation is that power supply (Y) is connected to the AC side of rectification circuit (Z) and the input of step-down control circuit (Y1); the DC side of rectification circuit (Z) is connected to first and exchanges control and protector master element (Z1); second exchanges control and protector master element (Z2); the 3rd exchanges control and protector master element (Z3); first interchange control is connected to first with protector master element (Z1) output and exchanges control and protector coil (X1); second interchange control is connected to second with protector master element (Z2) output and exchanges control and protector coil (X2); the 3rd interchange control is connected to the 3rd with protector master element (Z3) output and exchanges control and protector coil (X3); the output of step-down control circuit (Y1) is connected to first through first interchange control with protector retentive control element (Z11) and exchanges control and protector coil (X1), step-down control circuit (Y1)
Output exchange control and protector retentive control element (Z12) through second and be connected to second and exchange and control and protector coil (X2); the output of step-down control circuit (Y1) is connected to the 3rd through the 3rd interchange control with protector retentive control element (Z13) and exchanges control and protector coil (X3); the DC side other end of rectification circuit (Z) exchanges the control and protector coil (X1) other end respectively with first; second exchanges the control and protector coil (X2) other end; the 3rd exchanges the control and protector coil (X3) other end; another output of step-down control circuit (Y1) joins; first delivery outlet of single chip computer device (D) connects the input of first control circuit (E1); an output of first control circuit (E1) is connected to first control end that exchanges control and protector master element (Z1); second delivery outlet of single chip computer device (D) connects another input of first control circuit (E1); another output of first control circuit (E1) is connected to second control end that exchanges control and protector master element (Z2); the 3rd delivery outlet of single chip computer device (D) connects another input of first control circuit (E1); another output of first control circuit (E1) is connected to the 3rd control end that exchanges control and protector master element (Z3); the 4th delivery outlet of single chip computer device (D) connects the input of second control circuit (E2); an output of second control circuit (E2) is connected to first control end that exchanges control and protector retentive control element (Z11); the 5th delivery outlet of single chip computer device (D) connects another input of second control circuit (E2); another output of second control circuit (E2) is connected to second control end that exchanges control and protector retentive control element (Z12); the 6th delivery outlet of single chip computer device (D) connects another input of second control circuit (E2); another output of second control circuit (E2) is connected to the 3rd control end that exchanges control and protector retentive control element (Z13); the output of first current sensor (F1) is connected to an A/D mouth of single chip computer device (D); the output of second current sensor (F2) is connected to the 2nd A/D mouth of single chip computer device (D); the output of the 3rd current sensor (F3) is connected to the 3rd A/D mouth of single chip computer device (D); the 4th A/D mouth of the output order sheet machine (D) of first voltage sensor (M1), the 5th A/D mouth of the output order sheet machine (D) of second voltage sensor (M2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101252941A CN100459012C (en) | 2005-09-27 | 2005-11-23 | Combined type intelligent alternating-current control and protector |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200520098249.7 | 2005-09-27 | ||
| CN200520098249 | 2005-09-27 | ||
| CNB2005101252941A CN100459012C (en) | 2005-09-27 | 2005-11-23 | Combined type intelligent alternating-current control and protector |
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| Publication Number | Publication Date |
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| CN1841614A CN1841614A (en) | 2006-10-04 |
| CN100459012C true CN100459012C (en) | 2009-02-04 |
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| CNB2005101252941A Expired - Fee Related CN100459012C (en) | 2005-09-27 | 2005-11-23 | Combined type intelligent alternating-current control and protector |
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| CN (1) | CN100459012C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107507A (en) * | 2013-02-16 | 2013-05-15 | 福州大学 | Contactor integrating function and structure of electronic type protector |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101414530B (en) * | 2008-11-25 | 2010-12-22 | 福州大学 | Electric appliance rapid disjunction motion mechanism based on main circuit current excitation |
| CN102054632B (en) * | 2011-01-14 | 2013-04-17 | 福州大学 | Split-phase type intelligent low-voltage double-breakpoint integrated electrical appliance with quick electromagnetism repulsive force mechanism |
| CN102931032B (en) * | 2012-10-30 | 2014-12-03 | 福州大学 | Low-voltage AC/DC control and protection electrical appliance |
| CN103489678A (en) * | 2013-10-15 | 2014-01-01 | 电光防爆科技（上海）有限公司 | High-voltage zero point switching load magnetic starter |
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| CN2308162Y (en) * | 1995-12-04 | 1999-02-17 | 机械工业部上海电器科学研究所 | Combined modular switch electrical equipment with control and protection functions |
| CN2415456Y (en) * | 2000-04-10 | 2001-01-17 | 福州大学 | Intelligent AC contactor |
| CN2701057Y (en) * | 2004-06-11 | 2005-05-18 | 福州大学 | Combined type intelligent AC contactor |
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2005
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Patent Citations (3)
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| CN2308162Y (en) * | 1995-12-04 | 1999-02-17 | 机械工业部上海电器科学研究所 | Combined modular switch electrical equipment with control and protection functions |
| CN2415456Y (en) * | 2000-04-10 | 2001-01-17 | 福州大学 | Intelligent AC contactor |
| CN2701057Y (en) * | 2004-06-11 | 2005-05-18 | 福州大学 | Combined type intelligent AC contactor |
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| 智能电动机控制与保护器的研究. 许志红，张培铭.继电器，第26卷第6期. 1998 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103107507A (en) * | 2013-02-16 | 2013-05-15 | 福州大学 | Contactor integrating function and structure of electronic type protector |
| CN103107507B (en) * | 2013-02-16 | 2016-03-30 | 福州大学 | The contactor of integrated electronic type protector function and structure |
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| CN1841614A (en) | 2006-10-04 |
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Granted publication date: 20090204 Termination date: 20121123 |