CN102891465B - Interchanged additional circuit for split protector current transformer - Google Patents
Interchanged additional circuit for split protector current transformer Download PDFInfo
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- CN102891465B CN102891465B CN201210358187.3A CN201210358187A CN102891465B CN 102891465 B CN102891465 B CN 102891465B CN 201210358187 A CN201210358187 A CN 201210358187A CN 102891465 B CN102891465 B CN 102891465B
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Abstract
The invention relates to a motor protection circuit, a pump protection circuit, a power capacitor protection circuit, a line protection circuit and the like and aims to provide a series of interchanged additional circuits for a split protector current transformer. An active additional circuit is arranged in the split current transformer, so that the output of each split current transformer has unified and identical standard, each split protector host can be optionally interchanged, the interchange is realized, and the precision is not influenced. The problem that the split protector hosts cannot be interchanged in a split three-phase current transformer is solved, an error caused by loss of a signal on a connecting line between two protectors is avoided, and the interchanged additional circuit is suitable for various split motor protection circuits, pump protection circuits, power capacitor protection circuits, line protection circuits and the like.
Description
Technical field
The present invention relates to motor protecting circuit, pump class protective circuit, power capacitor protective circuit, circuit protection circuit, particularly split type protector current transformer exchanges adjunct circuit.
Background technology
Current motor protector, pump class protector, power capacitor protector, line protector have the polytypes such as one and split; integrated protective device is protector main frame, a bubble head and threephase current transformer housing; split type is that protector main frame, bubble head and threephase current transformer divide disome or three bodies, and threephase current transformer and the protector main frame of split type protector are installed separately.Existing problems are the threephase current transformer all criteria of right and wrong products for the protection of device, consistency is poor, the protector precision of one is by the regulation of electrical circuit in protector main frame, the threephase current transformer of split protector is all and protector main frame matched modification precision, form a complete production network, can not exchange, if comparatively big error can be there is in exchange, do not have due protective effect, supporting threephase current transformer must be changed together when protector main frame is changed, particularly difficulty installed by the threephase current transformer of big current, change more difficult, inconvenience is brought to user, manufacturer's process debugging is also more loaded down with trivial details, both sides of supply and demand stock amount also increases.
Summary of the invention
The object of the invention is for above-mentioned defect; a series of split type protector current transformer is provided to exchange adjunct circuit; in the current transformer of split, active adjunct circuit is installed; make the current transformer of every platform split export adjustment and have unified identical standard; reach and exchange and do not affect precision, active adjunct circuit can avoid the error that in two body connection resistances, the loss of signal causes.
Technical scheme of the present invention is that split type protector current transformer exchanges adjunct circuit, comprise three-phase ac signal amplifying type current transformer exchange adjunct circuit or three-phase signal amplification rectifier type current transformer exchange adjunct circuit or three phase half wave rectification amplifying type current transformer and exchange adjunct circuit, it is characterized in that split type protector current transformer exchanges adjunct circuit is install active adjunct circuit in the threephase current transformer inside of split, the threephase current transformer performance of every platform split is made to reach consistent, protector main frame for every platform split can exchange use arbitrarily, wherein three-phase ac signal amplifying type current transformer exchanges adjunct circuit is carry out adjustment in threephase current transformer BHa inside respectively to the ac current signal of A phase current mutual inductor La1 and B phase current mutual inductor La2 and C phase current mutual inductor La3 to amplify, with two body A phase current signal connecting line Ha1 between the threephase current transformer BHa of split and the protector host B Za of split, two body B phase current signal connecting line Ha2, two body C phase current signal connecting line Ha3, two body positive supply connecting line Ha4, two body negative supply connecting line Ha5 and two body common port connecting line Ha6 link, the performance of the threephase current transformer BHa of every platform split is made to reach consistent standard, protector host B Za for every platform split can exchange arbitrarily, specifically one end of A phase current mutual inductor La1 one end connection signal resistance Ra1 and the positive input terminal of operational amplifier ICa1, one end of B phase current mutual inductor La2 one end connection signal resistance Ra2 and the positive input terminal of operational amplifier ICa2, one end of C phase current mutual inductor La3 one end connection signal resistance Ra3 and the positive input terminal of operational amplifier ICa3, A phase current mutual inductor La1, B phase current mutual inductor La2, the other end of C phase current mutual inductor La3 and signal resistance Ra1, signal resistance Ra2, the other end of signal resistance Ra3 connects as common port VOa, one end of negative input end contact resistance Ra4 of operational amplifier ICa1 and one end of resistance Ra5, one end of negative input end contact resistance Ra6 of operational amplifier ICa2 and one end of resistance Ra7, one end of negative input end contact resistance Ra8 of operational amplifier ICa3 and one end of resistance Ra9, the other end of resistance Ra4, the other end of resistance Ra6 and the other end of resistance Ra8 also connect common port VOa after connecing together, the output of the other end concatenation operation amplifier ICa1 of resistance Ra5 and two body A phase current signal connecting line Ha1, the output of the other end concatenation operation amplifier ICa2 of resistance Ra7 and two body B phase current signal connecting line Ha2, the output of the other end concatenation operation amplifier ICa3 of resistance Ra9 and two body C phase current signal connecting line Ha3, positive supply VDDa connects two body positive supply connecting line Ha4, negative supply VCCa connects two body negative supply connecting line Ha5, common port VOa connects two body common port connecting line Ha6, the positive and negative working power of the threephase current transformer BHa adjunct circuit of split is provided by the protector host B Za of split.
Described split type protector current transformer exchanges adjunct circuit and comprises three-phase signal amplification rectifier type current transformer exchange adjunct circuit, it is characterized in that the threephase current transformer BHb inside of split is carried out amplification rectification respectively to the ac current signal of A phase current mutual inductor Lb1 and B phase current mutual inductor Lb2 and C phase current mutual inductor Lb3 and become direct current signal, with two body A phase current signal connecting line Hb1 between the threephase current transformer BHb of split and the protector host B Zb of split, two body B phase current signal connecting line Hb2, two body C phase current signal connecting line Hb3, two body positive supply connecting line Hb4, two body negative supply connecting line Hb5 and two body common port connecting line Hb6 link, the performance of the threephase current transformer BHb of every platform split is made to reach consistent standard, protector host B Zb for every platform split can exchange arbitrarily, specifically one end of A phase current mutual inductor Lb1 one end connection signal resistance Rb1 and the positive input terminal of operational amplifier ICb1, one end of B phase current mutual inductor Lb2 one end connection signal resistance Rb2 and the positive input terminal of operational amplifier ICb2, one end of C phase current mutual inductor Lb3 one end connection signal resistance Rb3 and the positive input terminal of operational amplifier ICb3, A phase current mutual inductor Lb1, B phase current mutual inductor Lb2, the other end of C phase current mutual inductor Lb3 and signal resistance Rb1, signal resistance Rb2, the other end of signal resistance Rb3 connects as common port VOb, one end of negative input end contact resistance Rb4 of operational amplifier ICb1 and one end of resistance Rb5, one end of negative input end contact resistance Rb6 of operational amplifier ICb2 and one end of resistance Rb7, one end of negative input end contact resistance Rb8 of operational amplifier ICb3 and one end of resistance Rb9, the other end of resistance Rb4, the other end of resistance Rb6 and the other end of resistance Rb8 also connect common port VOb after connecing together, the other end of resistance Rb5 connects diode Db1 negative pole and two body A phase current signal connecting line Hb1, the other end of resistance Rb7 connects diode Db2 negative pole and two body B phase current signal connecting line Hb2, the other end of resistance Rb9 connects diode Db3 negative pole and two body C phase current signal connecting line Hb3, the output of diode Db1 positive pole concatenation operation amplifier ICb1, the output of diode Db2 positive pole concatenation operation amplifier ICb2, the output of diode Db3 positive pole concatenation operation amplifier ICb3, positive supply VDDb connects two body positive supply connecting line Hb4, negative supply VCCb connects two body negative supply connecting line Hb5, common port VOb connects two body common port connecting line Hb6, the positive and negative working power of the threephase current transformer BHb adjunct circuit of split is provided by the protector host B Zb of split.
Described split type protector current transformer exchanges adjunct circuit and comprises three phase half wave rectification amplifying type current transformer exchange adjunct circuit, it is characterized in that the inner ac current signal to A phase current mutual inductor Lc1 and B phase current mutual inductor Lc2 and C phase current mutual inductor Lc3 of the threephase current transformer BHC of split carries out rectification by three phase half wave rectification and amplifies the direct current signal becoming three-phase synthesis, with two body current signal connecting line Hc1 between the threephase current transformer BHC of split and the protector host B ZC of split, two body positive supply connecting line Hc4, two body negative supply connecting line Hc5 and two body common port connecting line Hc6 link, adjusting resistance Rc4 makes the performance of the threephase current transformer BHC of every platform split reach consistent standard, protector host B ZC for every platform split can exchange arbitrarily, specifically A phase current mutual inductor Lc1 connects diode Dc1 negative pole, B phase current mutual inductor Lc2 connects diode Dc2 negative pole, C phase current mutual inductor Lc3 connects diode Dc3 negative pole, diode Dc1 positive pole, one end of diode Dc2 positive pole connection signal resistance Rc1 together with diode Dc3 positive pole, diode Dc1 positive pole, one end of diode Dc2 positive pole contact resistance Rc4 together with diode Dc3 positive pole, the negative input end of other end concatenation operation amplifier ICc1 of resistance Rc4 and one end of resistance Rc5, the other end of A phase current mutual inductor Lc1 is together connected common port VOc with the other end of C phase current mutual inductor Lc3 with the other end of signal resistance Rc1 with the other end of B phase current mutual inductor Lc2, the positive input terminal of operational amplifier ICc1 connects common port VOc, the output of the other end concatenation operation amplifier ICc1 of resistance Rc5 and two body current signal connecting line Hc1, positive supply VDDc connects two body positive supply connecting line Hc4, negative supply VCCc connects two body negative supply connecting line Hc5, common port VOc connects two body common port connecting line Hc6, the positive and negative working power of the threephase current transformer BHC adjunct circuit of split is provided by the protector host B ZC of split.
The invention solves the protector main frame non-interchangeable problem of threephase current transformer for split of split; overcome the error that the loss of signal between two bodies on connecting line causes, be applicable in the circuit such as various Split type electric motivation protector, pump class protector, power capacitor protector, line protector.
Accompanying drawing explanation
Fig. 1 three-phase ac signal amplifying type current transformer exchanges adjunct circuit schematic diagram,
Fig. 2 three-phase signal amplifies rectifier type current transformer and exchanges adjunct circuit schematic diagram,
Fig. 3 three phase half wave rectification amplifying type current transformer exchanges adjunct circuit schematic diagram,
La1A phase current mutual inductor in Fig. 1, La2B phase current mutual inductor, La3C phase current mutual inductor, Ra1 ~ Ra3 signal resistance, Ra4 ~ Ra9 resistance, ICa1 ~ ICa3 operational amplifier, Ha1 two body A phase current signal connecting line, Ha2 two body B phase current signal connecting line, Ha3 two body C phase current signal connecting line, Ha4 two body positive supply connecting line, Ha5 two body negative supply connecting line, Ha6 two body common port connecting line, the protector main frame of BZa split, the threephase current transformer of BHa split, VOa common port, VDDa positive supply, VCCa negative supply.
Lb1 A phase current mutual inductor in Fig. 2, Lb2 B phase current mutual inductor, Lb3 C phase current mutual inductor, Rb1 ~ Rb3 signal resistance, Rb4 ~ Rb9 resistance, Db1 ~ Db3 diode, ICb1 ~ ICb3 operational amplifier, Hb1 two body A phase current signal connecting line, Hb2 two body B phase current signal connecting line, Hb3 two body C phase current signal connecting line, Hb4 two body positive supply connecting line, Hb5 two body negative supply connecting line, Hb6 two body common port connecting line, the protector main frame of BZb split, the threephase current transformer of BHb split, VOb common port, VDDb positive supply, VCCb negative supply.
Lc1 A phase current mutual inductor, Lc2 B phase current mutual inductor, Lc3 C phase current mutual inductor, Rc1 signal resistance, Rc4 resistance, Rc5 resistance, Dc1 ~ Dc3 diode, ICc1 operational amplifier, Hc1 two body current signal connecting line, Hc4 two body positive supply connecting line, Hc5 two body negative supply connecting line, Hc6 two body common port connecting line, the protector main frame of BZC split, the threephase current transformer of BHC split, VOc common port, VDDc positive supply, VCCc negative supply in Fig. 3.
Embodiment
Fig. 1 is that three-phase ac signal amplifying type current transformer exchanges adjunct circuit schematic diagram, specifically one end of A phase current mutual inductor La1 one end connection signal resistance Ra1 and the positive input terminal of operational amplifier ICa1, one end of B phase current mutual inductor La2 one end connection signal resistance Ra2 and the positive input terminal of operational amplifier ICa2, one end of C phase current mutual inductor aLa3 one end connection signal resistance Ra3 and the positive input terminal of operational amplifier ICa3, A phase current mutual inductor La1, B phase current mutual inductor La2, the other end of C phase current mutual inductor La3 and signal resistance Ra1, signal resistance Ra2, the other end of signal resistance Ra3 connects as common port VOa, the negative input end contact resistance Ra4 of operational amplifier ICa1 and resistance Ra5, the negative input end contact resistance Ra6 of operational amplifier ICa2 and resistance Ra7, the negative input end contact resistance Ra8 of operational amplifier ICa3 and resistance Ra9, the other end of resistance Ra4, the other end of resistance Ra6 and the other end of resistance Ra8 also connect common port VOa after connecing together, the output of the other end concatenation operation amplifier ICa1 of resistance Ra5 and two body A phase current signal connecting line Ha1, the output of the other end concatenation operation amplifier ICa2 of resistance Ra7 and two body B phase current signal connecting line Ha2, the output of the other end concatenation operation amplifier ICa3 of resistance Ra9 and two body C phase current signal connecting line Ha3, positive supply VDDa connects two body positive supply connecting line Ha4, negative supply VCCa connects two body negative supply connecting line Ha5, common port VOa connects two body common port connecting line Ha6, the positive and negative working power of the threephase current transformer BHa adjunct circuit of split is provided by the protector host B Za of split.Link with two body A phase current signal connecting line Ha1, two body B phase current signal connecting line Ha2, two body C phase current signal connecting line Ha3, two body positive supply connecting line Ha4, two body negative supply connecting line Ha5 and two body common port connecting line Ha6 between the threephase current transformer BHa of split and the protector host B Za of split.Operation principle amplifies to the ac current signal of A phase current mutual inductor La1 and B phase current mutual inductor La2 and C phase current mutual inductor La3 the protector host B Za delivering to split again in threephase current transformer BHa inside respectively; adjusting resistance Ra4, resistance Ra6, resistance Ra8 make the performance of the threephase current transformer BHa of every platform split reach consistent standard respectively, and the protector host B Za for every platform split can exchange arbitrarily.
Fig. 2 is that three-phase signal amplifies rectifier type current transformer exchange adjunct circuit schematic diagram, specifically one end of A phase current mutual inductor Lb1 one end connection signal resistance Rb1 and the positive input terminal of operational amplifier ICb1, one end of B phase current mutual inductor Lb2 one end connection signal resistance Rb2 and the positive input terminal of operational amplifier ICb2, one end of C phase current mutual inductor Lb3 one end connection signal resistance Rb3 and the positive input terminal of operational amplifier ICb3, A phase current mutual inductor Lb1, B phase current mutual inductor Lb2, the other end of C phase current mutual inductor Lb3 and signal resistance Rb1, signal resistance Rb2, the other end of signal resistance Rb3 connects as common port bVOb, the negative input end contact resistance Rb4 of operational amplifier ICb1 and resistance Rb5, the negative input end contact resistance Rb6 of operational amplifier ICb2 and resistance Rb7, the negative input end contact resistance Rb8 of operational amplifier ICb3 and resistance Rb9, the other end of resistance Rb4, the other end of resistance Rb6 and the other end of resistance Rb8 also connect common port VOb after connecing together, the other end of resistance Rb5 connects diode Db1 negative pole and two body A phase current signal connecting line Hb1, the other end of resistance Rb7 connects diode Db2 negative pole and two body B phase current signal connecting line Hb2, the other end of resistance Rb9 connects diode Db3 negative pole and two body C phase current signal connecting line Hb3, the output of diode Db1 positive pole concatenation operation amplifier ICb1, the output of diode Db2 positive pole concatenation operation amplifier ICb2, the output of diode Db3 positive pole concatenation operation amplifier ICb3, positive supply VDDb connects two body positive supply connecting line Hb4, negative supply VCCb connects two body negative supply connecting line Hb5, common port VOb connects two body common port connecting line Hb6, the positive and negative working power of the threephase current transformer BHb adjunct circuit of split is provided by the protector host B Zb of split.With two body A phase current signal connecting line Hb1, two body B phase current signal connecting line Hb2, two body C phase current signal connecting line Hb3, two body positive supply connecting line Hb4 between the threephase current transformer BHb of split and the protector host B Zb of split; two body negative supply connecting line Hb5 and two body common port connecting line Hb6 link; adjusting resistance Rb4, resistance Rb6, resistance Rb8 make the performance of the threephase current transformer BHb of every platform split reach consistent standard respectively, and the protector host B Zb for every platform split can exchange arbitrarily.To be that the threephase current transformer BHb of split is inner carry out rectification to the ac current signal of A phase current mutual inductor Lb1 and B phase current mutual inductor Lb2 and C phase current mutual inductor Lb3 and amplify and become the protector host B Zb that direct current signal delivers to split again operation principle respectively.
Fig. 3 is that three phase half wave rectification amplifying type current transformer exchanges adjunct circuit schematic diagram, specifically A phase current mutual inductor Lc1 connects diode Dc1 negative pole, B phase current mutual inductor Lc2 connects diode Dc2 negative pole, C phase current mutual inductor Lc3 connects diode Dc3 negative pole, diode Dc1 positive pole, one end of diode Dc2 positive pole connection signal resistance Rc1 together with diode Dc3 positive pole, diode Dc1 positive pole, one end of diode Dc2 positive pole contact resistance Rc4 together with diode Dc3 positive pole, the negative input end of the other end concatenation operation amplifier ICc1 of resistance Rc4 and resistance Rc5, the other end of A phase current mutual inductor Lc1 is together connected common port VOc with the other end of C phase current mutual inductor Lc3 with the other end of signal resistance Rc1 with the other end of B phase current mutual inductor Lc2, the positive input terminal of operational amplifier ICc1 connects common port VOc, the output of the other end concatenation operation amplifier ICc1 of resistance Rc5 and two body current signal connecting line cHc1, positive supply VDDc connects two body positive supply connecting line Hc4, negative supply VCCc connects two body negative supply connecting line Hc5, common port VOc connects two body common port connecting line Hc6, the positive and negative working power of the threephase current transformer BHC adjunct circuit of split is provided by the protector host B ZC of split.With two body current signal connecting line Hc1, two body positive supply connecting line Hc4 between the threephase current transformer BHC of split and the protector host B ZC of split; two body negative supply connecting line Hc5 and two body common port connecting line Hc6 link; adjusting resistance Rc4 makes the performance of the threephase current transformer BHC of every platform split reach consistent standard, and the protector host B ZC for every platform split can exchange arbitrarily.Operation principle is that the protector host B ZC delivering to split is again amplified to the ac current signal of A phase current mutual inductor Lc1 and B phase current mutual inductor Lc2 and C phase current mutual inductor Lc3 in the threephase current transformer BHC inside of split after three phase half wave rectification.
Claims (3)
1. split type protector current transformer exchanges adjunct circuit, comprise three-phase ac signal amplifying type current transformer exchange adjunct circuit or three-phase signal amplification rectifier type current transformer exchange adjunct circuit or three phase half wave rectification amplifying type current transformer and exchange adjunct circuit, it is characterized in that split type protector current transformer exchanges adjunct circuit is install active adjunct circuit in the threephase current transformer inside of split, the threephase current transformer performance of every platform split is made to reach consistent, protector main frame for every platform split can exchange use arbitrarily, wherein three-phase ac signal amplifying type current transformer exchanges adjunct circuit is carry out adjustment in threephase current transformer BHa inside respectively to the ac current signal of A phase current mutual inductor La1 and B phase current mutual inductor La2 and C phase current mutual inductor La3 to amplify, with two body A phase current signal connecting line Ha1 between the threephase current transformer BHa of split and the protector host B Za of split, two body B phase current signal connecting line Ha2, two body C phase current signal connecting line Ha3, two body positive supply connecting line Ha4, two body negative supply connecting line Ha5 and two body common port connecting line Ha6 link, the performance of the threephase current transformer BHa of every platform split is made to reach consistent standard, protector host B Za for every platform split can exchange arbitrarily, specifically one end of A phase current mutual inductor La1 one end connection signal resistance Ra1 and the positive input terminal of operational amplifier ICa1, one end of B phase current mutual inductor La2 one end connection signal resistance Ra2 and the positive input terminal of operational amplifier ICa2, one end of C phase current mutual inductor La3 one end connection signal resistance Ra3 and the positive input terminal of operational amplifier ICa3, A phase current mutual inductor La1, B phase current mutual inductor La2, the other end of C phase current mutual inductor La3 and signal resistance Ra1, signal resistance Ra2, the other end of signal resistance Ra3 connects as common port V0a, one end of negative input end contact resistance Ra4 of operational amplifier ICa1 and one end of resistance Ra5, one end of negative input end contact resistance Ra6 of operational amplifier ICa2 and one end of resistance Ra7, one end of negative input end contact resistance Ra8 of operational amplifier ICa3 and one end of resistance Ra9, the other end of resistance Ra4, the other end of resistance Ra6 and the other end of resistance Ra8 also connect common port V0a after connecing together, the output of the other end concatenation operation amplifier ICa1 of resistance Ra5 and two body A phase current signal connecting line Ha1, the output of the other end concatenation operation amplifier ICa2 of resistance Ra7 and two body B phase current signal connecting line Ha2, the output of the other end concatenation operation amplifier ICa3 of resistance Ra9 and two body C phase current signal connecting line Ha3, positive supply VDDa connects two body positive supply connecting line Ha4, negative supply VCCa connects two body negative supply connecting line Ha5, common port V0a connects two body common port connecting line Ha6, the positive and negative working power of the threephase current transformer BHa adjunct circuit of split is provided by the protector host B Za of split.
2. split type protector current transformer exchange adjunct circuit according to claim 1 comprises three-phase signal amplification rectifier type current transformer exchange adjunct circuit, it is characterized in that the threephase current transformer BHb inside of split is carried out amplification rectification respectively to the ac current signal of A phase current mutual inductor Lb1 and B phase current mutual inductor Lb2 and C phase current mutual inductor Lb3 and become direct current signal, with two body A phase current signal connecting line Hb1 between the threephase current transformer BHb of split and the protector host B Zb of split, two body B phase current signal connecting line Hb2, two body C phase current signal connecting line Hb3, two body positive supply connecting line Hb4, two body negative supply connecting line Hb5 and two body common port connecting line Hb6 link, the performance of the threephase current transformer BHb of every platform split is made to reach consistent standard, protector host B Zb for every platform split can exchange arbitrarily, specifically one end of A phase current mutual inductor Lb1 one end connection signal resistance Rb1 and the positive input terminal of operational amplifier ICb1, one end of B phase current mutual inductor Lb2 one end connection signal resistance Rb2 and the positive input terminal of operational amplifier ICb2, one end of C phase current mutual inductor Lb3 one end connection signal resistance Rb3 and the positive input terminal of operational amplifier ICb3, A phase current mutual inductor Lb1, B phase current mutual inductor Lb2, the other end of C phase current mutual inductor Lb3 and signal resistance Rb1, signal resistance Rb2, the other end of signal resistance Rb3 connects as common port V0b, one end of negative input end contact resistance Rb4 of operational amplifier ICb1 and one end of resistance Rb5, one end of negative input end contact resistance Rb6 of operational amplifier ICb2 and one end of resistance Rb7, one end of negative input end contact resistance Rb8 of operational amplifier ICb3 and one end of resistance Rb9, the other end of resistance Rb4, the other end of resistance Rb6 and the other end of resistance Rb8 also connect common port V0b after connecing together, the other end of resistance Rb5 connects diode Db1 negative pole and two body A phase current signal connecting line Hb1, the other end of resistance Rb7 connects diode Db2 negative pole and two body B phase current signal connecting line Hb2, the other end of resistance Rb9 connects diode Db3 negative pole and two body C phase current signal connecting line Hb3, the output of diode Db1 positive pole concatenation operation amplifier ICb1, the output of diode Db2 positive pole concatenation operation amplifier ICb2, the output of diode Db3 positive pole concatenation operation amplifier ICb3, positive supply VDDb connects two body positive supply connecting line Hb4, negative supply VCCb connects two body negative supply connecting line Hb5, common port V0b connects two body common port connecting line Hb6, the positive and negative working power of the threephase current transformer BHb adjunct circuit of split is provided by the protector host B Zb of split.
3. split type protector current transformer exchange adjunct circuit comprises three phase half wave rectification amplifying type current transformer exchange adjunct circuit according to claim 1, it is characterized in that the inner ac current signal to A phase current mutual inductor Lc1 and B phase current mutual inductor Lc2 and C phase current mutual inductor Lc3 of the threephase current transformer BHC of split carries out rectification by three phase half wave rectification and amplifies the direct current signal becoming three-phase synthesis, with two body current signal connecting line Hc1 between the threephase current transformer BHC of split and the protector host B ZC of split, two body positive supply connecting line Hc4, two body negative supply connecting line Hc5 and two body common port connecting line Hc6 link, adjusting resistance Rc4 makes the performance of the threephase current transformer BHC of every platform split reach consistent standard, protector host B ZC for every platform split can exchange arbitrarily, specifically A phase current mutual inductor Lc1 connects diode Dc1 negative pole, B phase current mutual inductor Lc2 connects diode Dc2 negative pole, C phase current mutual inductor Lc3 connects diode Dc3 negative pole, diode Dc1 positive pole, one end of diode Dc2 positive pole connection signal resistance Rc1 together with diode Dc3 positive pole, diode Dc1 positive pole, one end of diode Dc2 positive pole contact resistance Rc4 together with diode Dc3 positive pole, the negative input end of other end concatenation operation amplifier ICc1 of resistance Rc4 and one end of resistance Rc5, the other end of A phase current mutual inductor Lc1 is together connected common port V0c with the other end of C phase current mutual inductor Lc3 with the other end of signal resistance Rc1 with the other end of B phase current mutual inductor Lc2, the positive input terminal of operational amplifier ICc1 connects common port V0c, the output of the other end concatenation operation amplifier ICc1 of resistance Rc5 and two body current signal connecting line Hc1, positive supply VDDc connects two body positive supply connecting line Hc4, negative supply VCCc connects two body negative supply connecting line Hc5, common port V0c connects two body common port connecting line Hc6, the positive and negative working power of the threephase current transformer BHC adjunct circuit of split is provided by the protector host B ZC of split.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2221262Y (en) * | 1994-12-30 | 1996-02-28 | 张世清 | Multifunctional 3-phase mains protector |
| EP1532461B1 (en) * | 2002-06-25 | 2007-09-19 | Ladislav Grno | Circuit for simultaneous testing of electricity meters with interconnected current and voltage circuits |
| CN102122926A (en) * | 2011-02-27 | 2011-07-13 | 介国安 | Three-phase operational amplifier |
| CN202749791U (en) * | 2012-09-08 | 2013-02-20 | 介国安 | Additional circuit for split type protector current transformer exchange |
-
2012
- 2012-09-08 CN CN201210358187.3A patent/CN102891465B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2221262Y (en) * | 1994-12-30 | 1996-02-28 | 张世清 | Multifunctional 3-phase mains protector |
| EP1532461B1 (en) * | 2002-06-25 | 2007-09-19 | Ladislav Grno | Circuit for simultaneous testing of electricity meters with interconnected current and voltage circuits |
| CN102122926A (en) * | 2011-02-27 | 2011-07-13 | 介国安 | Three-phase operational amplifier |
| CN202749791U (en) * | 2012-09-08 | 2013-02-20 | 介国安 | Additional circuit for split type protector current transformer exchange |
Non-Patent Citations (1)
| Title |
|---|
| 三相半波可控整流电路的计算机仿真;张建华等;《电力自动化设备》;20020228;第22卷(第2期);第41－43页 * |
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|---|---|
| CN102891465A (en) | 2013-01-23 |
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Address after: 528437, 2nd and 3rd floors, Block A, No. 5 Dongli South Road, Zhongshan Torch Development Zone, Guangdong Province Patentee after: ZHONGSHAN XINXUAN ELECTRONIC TECHNOLOGY CO.,LTD. Address before: The exhibition of Guangdong Torch Development Zone, 528437 East Road Zhongshan City, No. 16 digital building room 1102 Patentee before: ZHONGSHAN XINXUAN ELECTRONIC TECHNOLOGY CO.,LTD. |
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