CN201732705U - Arc-less alternating-current relay device - Google Patents
Arc-less alternating-current relay device Download PDFInfo
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- CN201732705U CN201732705U CN201020240525XU CN201020240525U CN201732705U CN 201732705 U CN201732705 U CN 201732705U CN 201020240525X U CN201020240525X U CN 201020240525XU CN 201020240525 U CN201020240525 U CN 201020240525U CN 201732705 U CN201732705 U CN 201732705U
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Abstract
Disclosed are an arc-less alternating-current relay device and a three-phase asynchronous motor arc-less alternating-current relay device. The arc-less alternating-current relay device comprises a thyristor relay device and a control circuit which are used for a main circuit. The thyristor relay device comprises an AC contactor normally open main contact, a bidirectional thyristor, a trigger resistor and an arc-suppression relay normally open main contact, wherein a first end of the AC contactor main contact is electrically connected with a first end of the bidirectional thyristor so as to form a power source connecting terminal. The relay device is compact and reasonable in structure and convenient in use, combines the relay with the thyristor, utilizes the characteristic that conduction time of the thyristor is short while conduction time of the AC contactor is longer, prevent spark generating when in connection and disconnection, not only prolongs service time of the contact of the contactor but meets safety requirements, has the advantages of no spark, safety and reliability and long service life, and is particularly suitable for special environments needing frequent start, such as oil fields, underground and coal mines.
Description
Technical field
The utility model relates to the connection disjunction control device technical field of alternating current circuit, is that a kind of no arc exchanges relay system and do not have arc with threephase asynchronous and exchange relay system.
Background technology
Generally exchange the automation control that switch is realized electric equipment with thyristor at present by A.C. contactor, exchange connection and the disjunction that switch can both be realized alternating current circuit with thyristor by A.C. contactor, all exist deficiency in actual use and there is the A.C. contactor of contact to exchange switch with contactless thyristor.The overload capacity of A.C. contactor is stronger, but when contact and branch deenergizing, can produce electric arc, cause contact surface that oxidation easily takes place, particularly contact oxidation is even more serious when the disjunction high-current circuit, shortened the useful life of A.C. contactor, electric arc and spark also can cause potential safety hazard in addition, bring danger for special environments for use such as oil field, down-hole, colliery.With thyristor during as alternating-current switch, because it is contactless, do not produce electric arc when disconnecting alternating current circuit, be applicable to the occasion that switch motion is more frequent, and its useful life is longer, but because the overload capacity of thyristor is relatively poor, and needs the radiator of larger volume, so some occasions are restricted and can't use.
Summary of the invention
The utility model provides a kind of no arc interchange relay system not have arc with threephase asynchronous and has exchanged relay system, alternating-current switch that the contact is arranged that its connection disjunction control device that has solved existing alternating current circuit exists can produce electric arc, useful life short, can cause potential safety hazard, and the overload capacity of contactless alternating-current switch is relatively poor, the problem of easy heating.
One of the technical solution of the utility model realizes by following measure: a kind of no arc exchanges relay system, comprises the thyristor type relay system and the control loop that are used for major loop; The thyristor type relay system comprises that A.C. contactor often leaves main contacts, bidirectional thyristor, triggering resistance and extinguishing arc relay normally open main contacts, first end of A.C. contactor main contacts and first end of bidirectional thyristor are electrically connected and form power connector end, second end of A.C. contactor main contacts and second end of bidirectional thyristor are electrically connected and form the load splicing ear, and the control utmost point of bidirectional thyristor, triggering resistance, extinguishing arc relay normally open contact and load splicing ear electricity successively are serially connected; Control loop comprises the contactor coil that can make A.C. contactor often open the main contacts closure and can make extinguishing arc relay normally open main contacts closure and switch on, be later than the relay coil that contactor coil cuts off the power supply prior to contactor coil.
Be further optimization and/or improvements below to one of above-mentioned utility model technical scheme:
Above-mentioned control loop can comprise control power supply, control arc relay loop, extinguishing arc relay loop and contactor loop; Control arc relay loop comprises control power supply first utmost point, control power supply second utmost point, the normal unlatching moved button, normally closed stop botton, can make control arc relay self-locking normally opened contact after the energising, the control arc relay normally open locking contact in the extinguishing arc relay loop and the control arc relay coil of the control arc relay lock control normally opened contact adhesive in the contactor loop and control arc relay self-locking normally opened contact, control power supply first utmost point, the normal unlatching moved button, normally closed stop botton, the control arc relay coil and control power supply second utmost point electricity in regular turn are serially connected, and control arc relay self-locking normally opened contact is opened moving button electricity and connected together with normal; The extinguishing arc relay loop comprises extinguishing arc relay coil and the control arc relay normally open locking contact that A.C. contactor often unblanks can make after fixed contact, the energising extinguishing arc relay normally open contact in the major loop and the extinguishing arc relay lock control normally opened contact adhesive in the contactor loop, control power supply first utmost point, A.C. contactor often unblank fixed contact, extinguishing arc relay coil and control power supply second utmost point in regular turn electricity be serially connected, control arc relay normally open locking contact and the A.C. contactor fixed contact electricity of often unblanking connects together; The contactor loop comprises the ac contactor coil that the A.C. contactor main contacts that can make after control arc relay lock control normally opened contact, extinguishing arc relay lock control normally opened contact and the energising in the major loop and the A.C. contactor in the extinguishing arc relay loop are often unblanked the fixed contact adhesive, and control power supply first utmost point, control arc relay lock control normally opened contact, extinguishing arc relay lock control normally opened contact, ac contactor coil and control power supply second utmost point electricity in regular turn are serially connected.
Two of the technical solution of the utility model realizes by following measure: a kind of threephase asynchronous that utilizes above-mentioned no arc to exchange relay system does not have arc and exchanges relay system, can comprise the thyristor type relay system and the control loop that are used for the threephase asynchronous main control loop, the threephase asynchronous main control loop can comprise power supply first utmost point, power supply second utmost point, power supply the 3rd utmost point, the first thyristor type relay system, the second thyristor type relay system, the 3rd thyristor type relay system and threephase asynchronous, power supply first utmost point is electrically connected by first binding post of the first thyristor type relay system and threephase asynchronous, power supply second utmost point is electrically connected by second binding post of the second thyristor type relay system and threephase asynchronous, and power supply the 3rd utmost point is electrically connected by the 3rd binding post of the 3rd thyristor type relay system and threephase asynchronous; The first thyristor type relay system comprises that first A.C. contactor often opens main contacts, first bidirectional thyristor, first triggers the resistance and the first extinguishing arc relay normally open main contacts, first end of the first A.C. contactor main contacts and first end of first bidirectional thyristor are electrically connected and form first power connector end, second end of the first A.C. contactor main contacts and second end of first bidirectional thyristor are electrically connected and form the first load splicing ear, the control utmost point of first bidirectional thyristor, first triggers resistance, the first extinguishing arc relay normally open contact and the first load splicing ear electricity successively are serially connected; The second thyristor type relay system comprises that second A.C. contactor often opens main contacts, second bidirectional thyristor, second triggers the resistance and the second extinguishing arc relay normally open main contacts, first end of the second A.C. contactor main contacts and first end of second bidirectional thyristor are electrically connected and form the second source splicing ear, second end of the second A.C. contactor main contacts and second end of second bidirectional thyristor are electrically connected and form the second load splicing ear, the control utmost point of second bidirectional thyristor, second triggers resistance, the second extinguishing arc relay normally open contact and the second load splicing ear electricity successively are serially connected; The 3rd thyristor type relay system comprises that the 3rd A.C. contactor often opens main contacts, the 3rd bidirectional thyristor, the 3rd triggers resistance and the 3rd extinguishing arc relay normally open main contacts, first end of the 3rd A.C. contactor main contacts and first end of the 3rd bidirectional thyristor are electrically connected and form the 3rd power connector end, second end of the 3rd A.C. contactor main contacts and second end of the 3rd bidirectional thyristor are electrically connected and form the 3rd load splicing ear, the control utmost point of the 3rd bidirectional thyristor, the 3rd triggers resistance, the 3rd extinguishing arc relay normally open contact and the 3rd load splicing ear electricity successively are serially connected.
Be two further optimization and/or improvements below to above-mentioned utility model technical scheme:
Above-mentioned motor control loop can comprise control arc relay loop, extinguishing arc relay loop and contactor loop; Control arc relay loop comprises that normal unlatching move button, normally closed stop botton, control arc relay coil and controls arc relay self-locking normally opened contact, power supply second utmost point, the moving button of normal unlatching, normally closed stop botton, control arc relay coil and power supply the 3rd utmost point electricity in regular turn are serially connected, and control arc relay self-locking normally opened contact connects together with the moving button electricity of normal unlatching; The extinguishing arc relay loop comprises A.C. contactor often unblank fixed contact, extinguishing arc relay coil and control arc relay normally open locking contact, power supply second utmost point, A.C. contactor often unblank fixed contact, extinguishing arc relay coil and power supply the 3rd utmost point in regular turn electricity be serially connected, control arc relay normally open locking contact and the A.C. contactor fixed contact electricity of often unblanking connects together; The contactor loop comprises control arc relay lock control normally opened contact, extinguishing arc relay lock control normally opened contact and ac contactor coil, and power supply second utmost point, control arc relay lock control normally opened contact, extinguishing arc relay lock control normally opened contact, ac contactor coil and power supply the 3rd utmost point electricity in regular turn are serially connected
The utility model reasonable and compact in structure, easy to use, it unites two into one by the advantage with contactor and thyristor, utilize fast and A.C. contactor slow characteristics turn-on time of thyristor ON time, guarantee that no-spark produces when connection and disjunction, both prolonged the contact service time of contactor, can satisfy safety requirements again, characteristics with no-spark, safe and reliable, long service life are particularly suitable for the particular surroundings such as oil field, down-hole, colliery of frequent starting.
Description of drawings
Accompanying drawing 1 is the circuit diagram of the thyristor type relay system in the utility model.
Accompanying drawing 2 is the circuit diagram of the control loop in the utility model.
Accompanying drawing 3 is used for the control circuit schematic diagram of threephase asynchronous for the utility model.
Coding in the accompanying drawing is respectively: A is power connector end; B is the load splicing ear; V is a bidirectional thyristor; R is for triggering resistance; KA2 is an extinguishing arc relay normally open main contacts; KM is that main contacts often left by A.C. contactor; G is the control utmost point of bidirectional thyristor; X is control power supply first utmost point; Y is control power supply second utmost point; SB1 is the normal moving button of opening; SB2 is normally closed stop botton; L1 is power supply first utmost point; L2 is power supply second utmost point; L3 is power supply the 3rd utmost point; M is a threephase asynchronous; KA10 is control arc relay coil; KA11 is control arc relay self-locking normally opened contact; KA12 is control arc relay normally open locking contact, and KA13 is control arc relay lock control normally opened contact, and KA20 is the extinguishing arc relay coil; KA21 is the first extinguishing arc relay normally open main contacts; KA22 is the second extinguishing arc relay normally open main contacts, and KA23 is the 3rd extinguishing arc relay normally open main contacts, and KA24 is an extinguishing arc relay lock control normally opened contact; KM10 is an ac contactor coil; KM11 is that first A.C. contactor is often opened main contacts, and KM12 is that second A.C. contactor is often opened main contacts, and KM13 is that the 3rd A.C. contactor is often opened main contacts; KM14 is the A.C. contactor fixed contact of often unblanking; V1 is first bidirectional thyristor, and V2 is second bidirectional thyristor, and V3 is the 3rd bidirectional thyristor; R1 is the first triggering resistance; R2 is the second triggering resistance, and R3 is the 3rd triggering resistance, and A1 is first power connector end; A2 is the second source splicing ear; A3 is the 3rd power connector end, and B1 is the first load splicing ear, and B2 is the second load splicing ear; B3 is the 3rd load splicing ear; G1 is the control utmost point of first bidirectional thyristor, and G2 is the control utmost point of second bidirectional thyristor, and G3 is the control utmost point of the 3rd bidirectional thyristor.
Embodiment
The utility model is not subjected to the restriction of following embodiment, can determine concrete execution mode according to the technical solution of the utility model and actual conditions.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
Embodiment one: as shown in Figure 1, this no arc exchanges relay system and comprises thyristor type relay system and the control loop that is used for major loop; The thyristor type relay system comprises that A.C. contactor often leaves main contacts KM, bidirectional thyristor V, triggers resistance R and extinguishing arc relay normally open main contacts KA2, first end of A.C. contactor main contacts KM and first end of bidirectional thyristor V are electrically connected and form the sub-A of power connector end, second end of A.C. contactor main contacts KM and second end of bidirectional thyristor V are electrically connected and form load splicing ear B, and the control utmost point G of bidirectional thyristor, triggering resistance R, extinguishing arc relay normally open contact KA2 and load splicing ear B electricity successively are serially connected; Control loop comprises the contactor coil that can make A.C. contactor often open main contacts KM closure and can make extinguishing arc relay normally open main contacts KA2 closure and switch on, be later than the relay coil that contactor coil cuts off the power supply prior to contactor coil.Bidirectional thyristor V can be connected in parallel with the opposite thyristor electricity of both direction and replace.
Can above-mentioned no arc be exchanged relay system make further optimization and/or improvements according to actual needs:
As shown in Figure 2, control loop comprises control power supply, control arc relay loop, extinguishing arc relay loop and contactor loop; Control arc relay loop comprises control power supply first utmost point X, control power supply second utmost point Y, the normal unlatching moved button SB1, normally closed stop botton SB2, can make control arc relay self-locking normally opened contact KA11 after the energising, the control arc relay normally open locking contact KA12 in the extinguishing arc relay loop and the control arc relay coil KA10 of the control arc relay lock control normally opened contact KA13 adhesive in the contactor loop and control arc relay self-locking normally opened contact KA11, control power supply first utmost point X, the normal unlatching moved button SB1, normally closed stop botton SB2, control arc relay coil KA10 and control power supply second utmost point Y electricity in regular turn are serially connected, and control arc relay self-locking normally opened contact KA11 opens moving button SB1 electricity and connects together with normal; The extinguishing arc relay loop comprises extinguishing arc relay coil KA20 and the control arc relay normally open locking contact KA12 that A.C. contactor often unblanks can make after fixed contact KM14, the energising extinguishing arc relay normally open contact KA2 in the major loop and the extinguishing arc relay lock control normally opened contact KA24 adhesive in the contactor loop, control power supply first utmost point X, A.C. contactor often unblank fixed contact KM14, extinguishing arc relay coil KA20 and control power supply second utmost point Y in regular turn electricity be serially connected, control arc relay normally open locking contact KA12 and the A.C. contactor fixed contact KM14 electricity of often unblanking connects together; The contactor loop comprises the ac contactor coil KM10 that the A.C. contactor main contacts KM that can make after control arc relay lock control normally opened contact KA13, extinguishing arc relay lock control normally opened contact KA24 and the energising in the major loop and the A.C. contactor in the extinguishing arc relay loop are often unblanked fixed contact KM14 adhesive, and control power supply first utmost point X, control arc relay lock control normally opened contact KA13, extinguishing arc relay lock control normally opened contact KA24, ac contactor coil KM10 and control power supply second utmost point Y electricity in regular turn are serially connected.
Embodiment two: as shown in Figure 3, this threephase asynchronous does not have arc and exchanges relay system, comprise the thyristor type relay system and the control loop that are used for the threephase asynchronous main control loop, the threephase asynchronous main control loop comprises power supply first utmost point L1, power supply second utmost point L2, power supply the 3rd utmost point L3, the first thyristor type relay system, the second thyristor type relay system, the 3rd thyristor type relay system and threephase asynchronous M, power supply first utmost point L1 is electrically connected by first binding post of the first thyristor type relay system and threephase asynchronous M, power supply second utmost point L2 is electrically connected by second binding post of the second thyristor type relay system and threephase asynchronous M, and power supply the 3rd utmost point L3 is electrically connected by the 3rd binding post of the 3rd thyristor type relay system and threephase asynchronous M; The first thyristor type relay system comprises that first A.C. contactor often opens main contacts KM11, the first bidirectional thyristor V1, first triggers the resistance R 1 and the first extinguishing arc relay normally open main contacts KA21, first end of first end of the first A.C. contactor main contacts KM11 and the first bidirectional thyristor V1 is electrically connected and forms the sub-A1 of first power connector end, second end of second end of the first A.C. contactor main contacts KM11 and the first bidirectional thyristor V1 is electrically connected and forms the first load splicing ear B1, the control utmost point G1 of first bidirectional thyristor, first triggers resistance R 1, the first extinguishing arc relay normally open contact KA21 and the first load splicing ear B1 electricity successively are serially connected; The second thyristor type relay system comprises that second A.C. contactor often opens main contacts KM12, the second bidirectional thyristor V2, second triggers the resistance R 2 and the second extinguishing arc relay normally open main contacts KA22, first end of first end of the second A.C. contactor main contacts KM12 and the second bidirectional thyristor V2 is electrically connected and forms second source splicing ear A2, second end of second end of the second A.C. contactor main contacts KM12 and the second bidirectional thyristor V2 is electrically connected and forms the second load splicing ear B2, the control utmost point G2 of second bidirectional thyristor, second triggers resistance R 2, the second extinguishing arc relay normally open contact KA22 and the second load splicing ear B2 electricity successively are serially connected; The 3rd thyristor type relay system comprises that the 3rd A.C. contactor often opens main contacts KM13, the 3rd bidirectional thyristor V3, the 3rd triggers resistance R 3 and the 3rd extinguishing arc relay normally open main contacts KA23, first end of first end of the 3rd A.C. contactor main contacts KM13 and the 3rd bidirectional thyristor V3 is electrically connected and forms the sub-A3 of the 3rd power connector end, second end of second end of the 3rd A.C. contactor main contacts KM13 and the 3rd bidirectional thyristor V3 is electrically connected and forms the 3rd load splicing ear B3, the control utmost point G3 of the 3rd bidirectional thyristor, the 3rd triggers resistance R 3, the 3rd extinguishing arc relay normally open contact KA23 and the 3rd load splicing ear B3 electricity successively are serially connected.
Can above-mentioned threephase asynchronous not had arc interchange relay system make further optimization and/or improvements according to actual needs:
As shown in Figure 3, motor control loop comprises control arc relay loop, extinguishing arc relay loop and contactor loop; Control arc relay loop comprises that normal unlatching move button SB1, normally closed stop botton SB2, control arc relay coil KA10 and controls arc relay self-locking normally opened contact KA11, power supply second utmost point L2, unlatching often moving button SB1, normally closed stop botton SB2, control arc relay coil KA10 and power supply the 3rd utmost point L3 electricity in regular turn are serially connected, and control arc relay self-locking normally opened contact KA11 and often open moving button SB1 electricity to connect together; The extinguishing arc relay loop comprises A.C. contactor often unblank fixed contact KM14, extinguishing arc relay coil KA20 and control arc relay normally open locking contact KA12, power supply second utmost point L2, A.C. contactor often unblank fixed contact KM14, extinguishing arc relay coil KA20 and power supply the 3rd utmost point L3 in regular turn electricity be serially connected, control arc relay normally open locking contact KA12 and the A.C. contactor fixed contact KM14 electricity of often unblanking connects together; The contactor loop comprises control arc relay lock control normally opened contact KA13, extinguishing arc relay lock control normally opened contact KA24 and ac contactor coil KM10, and power supply second utmost point L2, control arc relay lock control normally opened contact KA13, extinguishing arc relay lock control normally opened contact KA24, ac contactor coil KM10 and power supply the 3rd utmost point L3 electricity in regular turn are serially connected.When the moment of pressing the moving button SB1 of normal unlatching, control arc relay coil KA10 energising, make the control arc relay normally open in the extinguishing arc relay loop lock contact KA12 adhesive, extinguishing arc relay coil KA20 energising, make the first extinguishing arc relay normally open main contacts KA21 in the main control loop again, the second extinguishing arc relay normally open main contacts KA22 and the 3rd extinguishing arc relay normally open main contacts KA23 adhesive, the first bidirectional thyristor V1, the gate pole of the second bidirectional thyristor V2 and the 3rd bidirectional thyristor V3 obtains the triggering signal conducting, and all load current is by the first bidirectional thyristor V1, the second bidirectional thyristor V2 and the 3rd bidirectional thyristor V3; Afterwards, extinguishing arc relay coil KA20 energising makes the extinguishing arc relay lock control normally opened contact KA24 adhesive in the contactor loop, ac contactor coil KM10 energising, make the first A.C. contactor main contacts KM11 in the main control loop, second A.C. contactor is often opened main contacts KM12 and the 3rd A.C. contactor main contacts KM13 closure, in closed moment, because there is contact resistance in ac contactor contact, cause the sub-A1 of first power connector end and the first load splicing ear B1, the second source splicing ear A2 and the second load splicing ear B2, there is pressure drop to exist between sub-A3 of the 3rd power connector end and the 3rd load splicing ear B3 respectively, the value of pressure drop is decided by the contact resistance of ac contactor contact and the size of current of main control loop, again since this pressure drop less than the first bidirectional thyristor V1, the conducting voltage of the second bidirectional thyristor V2 and the 3rd bidirectional thyristor V3, force the first bidirectional thyristor V1, the second bidirectional thyristor V2 and the 3rd bidirectional thyristor V3 turn-off when current over-zero, load current is all transferred to the first A.C. contactor main contacts KM11, second A.C. contactor is often opened the loop at main contacts KM12 and the 3rd A.C. contactor main contacts KM13 place, promptly realized the first A.C. contactor main contacts KM11, second A.C. contactor is often opened the no arc of main contacts KM12 and the 3rd A.C. contactor main contacts KM13 and is connected, and threephase asynchronous M begins operate as normal.When the moment of pressing normally closed stop botton SB2, control arc relay coil KA10 dead electricity, control arc relay lock control normally opened contact KA13 disconnects, ac contactor coil KM10 dead electricity makes the first A.C. contactor main contacts KM11 in the main control loop, main contacts KM12 often opened by second A.C. contactor and the gap appears in the 3rd A.C. contactor main contacts KM13, cause the sub-A1 of first power connector end and the first load splicing ear B1, the second source splicing ear A2 and the second load splicing ear B2, pressure drop between sub-A3 of the 3rd power connector end and the 3rd load splicing ear B3 surpasses the first bidirectional thyristor V1, the conducting voltage of the second bidirectional thyristor V2 and the 3rd bidirectional thyristor V3, because this moment first extinguishing arc relay normally open main contacts KA21, the second extinguishing arc relay normally open main contacts KA22 and the 3rd still adhesive of extinguishing arc relay normally open main contacts KA23, the first bidirectional thyristor V1, the gate pole triggering signal of the second bidirectional thyristor V2 and the 3rd bidirectional thyristor V3 still is in on-state, all load current is by the first bidirectional thyristor V1, the second bidirectional thyristor V2 and the 3rd bidirectional thyristor V3, bidirectional thyristor plays shunting action to the electric current in loop, ac contactor contact place, and the size of its shunting depends on the impedance ratio of parallel branch; The first A.C. contactor main contacts KM11, second A.C. contactor are often opened main contacts KM12 and the 3rd A.C. contactor main contacts KM13 disconnection subsequently, when main control loop electric current natural zero-crossing, thyristor is closed voluntarily, it is disconnected to have realized that promptly the first A.C. contactor main contacts KM11, second A.C. contactor are often opened the non-arc breaking of main contacts KM12 and the 3rd A.C. contactor main contacts KM13, power supply is cut off, the motor stall.
Above technical characterictic has constituted embodiment of the present utility model, and it has stronger adaptability and implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
Claims (4)
1. a no arc exchanges relay system, it is characterized in that comprising the thyristor type relay system and the control loop that are used for major loop; The thyristor type relay system comprises that A.C. contactor often leaves main contacts, bidirectional thyristor, triggering resistance and extinguishing arc relay normally open main contacts, first end of A.C. contactor main contacts and first end of bidirectional thyristor are electrically connected and form power connector end, second end of A.C. contactor main contacts and second end of bidirectional thyristor are electrically connected and form the load splicing ear, and the control utmost point of bidirectional thyristor, triggering resistance, extinguishing arc relay normally open contact and load splicing ear electricity successively are serially connected; Control loop comprises the contactor coil that can make A.C. contactor often open the main contacts closure and can make extinguishing arc relay normally open main contacts closure and switch on, be later than the relay coil that contactor coil cuts off the power supply prior to contactor coil.
2. no arc according to claim 1 exchanges relay system, it is characterized in that control loop comprises control power supply, control arc relay loop, extinguishing arc relay loop and contactor loop; Control arc relay loop comprises control power supply first utmost point, control power supply second utmost point, the normal unlatching moved button, normally closed stop botton, can make control arc relay self-locking normally opened contact after the energising, the control arc relay normally open locking contact in the extinguishing arc relay loop and the control arc relay coil of the control arc relay lock control normally opened contact adhesive in the contactor loop and control arc relay self-locking normally opened contact, control power supply first utmost point, the normal unlatching moved button, normally closed stop botton, the control arc relay coil and control power supply second utmost point electricity in regular turn are serially connected, and control arc relay self-locking normally opened contact is opened moving button electricity and connected together with normal; The extinguishing arc relay loop comprises extinguishing arc relay coil and the control arc relay normally open locking contact that A.C. contactor often unblanks can make after fixed contact, the energising extinguishing arc relay normally open contact in the major loop and the extinguishing arc relay lock control normally opened contact adhesive in the contactor loop, control power supply first utmost point, A.C. contactor often unblank fixed contact, extinguishing arc relay coil and control power supply second utmost point in regular turn electricity be serially connected, control arc relay normally open locking contact and the A.C. contactor fixed contact electricity of often unblanking connects together; The contactor loop comprises the ac contactor coil that the A.C. contactor main contacts that can make after control arc relay lock control normally opened contact, extinguishing arc relay lock control normally opened contact and the energising in the major loop and the A.C. contactor in the extinguishing arc relay loop are often unblanked the fixed contact adhesive, and control power supply first utmost point, control arc relay lock control normally opened contact, extinguishing arc relay lock control normally opened contact, ac contactor coil and control power supply second utmost point electricity in regular turn are serially connected.
3. a threephase asynchronous that utilizes claim 1 or 2 described no arcs to exchange relay system does not have arc interchange relay system, it is characterized in that comprising the thyristor type relay system and the control loop that are used for the threephase asynchronous main control loop, the threephase asynchronous main control loop comprises power supply first utmost point, power supply second utmost point, power supply the 3rd utmost point, the first thyristor type relay system, the second thyristor type relay system, the 3rd thyristor type relay system and threephase asynchronous, power supply first utmost point is electrically connected by first binding post of the first thyristor type relay system and threephase asynchronous, power supply second utmost point is electrically connected by second binding post of the second thyristor type relay system and threephase asynchronous, and power supply the 3rd utmost point is electrically connected by the 3rd binding post of the 3rd thyristor type relay system and threephase asynchronous; The first thyristor type relay system comprises that first A.C. contactor often opens main contacts, first bidirectional thyristor, first triggers the resistance and the first extinguishing arc relay normally open main contacts, first end of the first A.C. contactor main contacts and first end of first bidirectional thyristor are electrically connected and form first power connector end, second end of the first A.C. contactor main contacts and second end of first bidirectional thyristor are electrically connected and form the first load splicing ear, the control utmost point of first bidirectional thyristor, first triggers resistance, the first extinguishing arc relay normally open contact and the first load splicing ear electricity successively are serially connected; The second thyristor type relay system comprises that second A.C. contactor often opens main contacts, second bidirectional thyristor, second triggers the resistance and the second extinguishing arc relay normally open main contacts, first end of the second A.C. contactor main contacts and first end of second bidirectional thyristor are electrically connected and form the second source splicing ear, second end of the second A.C. contactor main contacts and second end of second bidirectional thyristor are electrically connected and form the second load splicing ear, the control utmost point of second bidirectional thyristor, second triggers resistance, the second extinguishing arc relay normally open contact and the second load splicing ear electricity successively are serially connected; The 3rd thyristor type relay system comprises that the 3rd A.C. contactor often opens main contacts, the 3rd bidirectional thyristor, the 3rd triggers resistance and the 3rd extinguishing arc relay normally open main contacts, first end of the 3rd A.C. contactor main contacts and first end of the 3rd bidirectional thyristor are electrically connected and form the 3rd power connector end, second end of the 3rd A.C. contactor main contacts and second end of the 3rd bidirectional thyristor are electrically connected and form the 3rd load splicing ear, the control utmost point of the 3rd bidirectional thyristor, the 3rd triggers resistance, the 3rd extinguishing arc relay normally open contact and the 3rd load splicing ear electricity successively are serially connected.
4. threephase asynchronous according to claim 3 does not have arc and exchanges relay system, it is characterized in that motor control loop comprises control arc relay loop, extinguishing arc relay loop and contactor loop; Control arc relay loop comprises that normal unlatching move button, normally closed stop botton, control arc relay coil and controls arc relay self-locking normally opened contact, power supply second utmost point, the moving button of normal unlatching, normally closed stop botton, control arc relay coil and power supply the 3rd utmost point electricity in regular turn are serially connected, and control arc relay self-locking normally opened contact connects together with the moving button electricity of normal unlatching; The extinguishing arc relay loop comprises A.C. contactor often unblank fixed contact, extinguishing arc relay coil and control arc relay normally open locking contact, power supply second utmost point, A.C. contactor often unblank fixed contact, extinguishing arc relay coil and power supply the 3rd utmost point in regular turn electricity be serially connected, control arc relay normally open locking contact and the A.C. contactor fixed contact electricity of often unblanking connects together; The contactor loop comprises control arc relay lock control normally opened contact, extinguishing arc relay lock control normally opened contact and ac contactor coil, and power supply second utmost point, control arc relay lock control normally opened contact, extinguishing arc relay lock control normally opened contact, ac contactor coil and power supply the 3rd utmost point electricity in regular turn are serially connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020240525XU CN201732705U (en) | 2010-06-29 | 2010-06-29 | Arc-less alternating-current relay device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020240525XU CN201732705U (en) | 2010-06-29 | 2010-06-29 | Arc-less alternating-current relay device |
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| Publication Number | Publication Date |
|---|---|
| CN201732705U true CN201732705U (en) | 2011-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020240525XU Expired - Fee Related CN201732705U (en) | 2010-06-29 | 2010-06-29 | Arc-less alternating-current relay device |
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| Country | Link |
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| CN (1) | CN201732705U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001479A (en) * | 2012-10-30 | 2013-03-27 | 广东易事特电源股份有限公司 | Large-power phase-controlled rectifier start-and-stop circuit |
| CN109343398A (en) * | 2018-10-19 | 2019-02-15 | 林建明 | A kind of voltage over zero high-voltage arc inhibition system |
| CN109704007A (en) * | 2018-12-14 | 2019-05-03 | 上海新朋联众汽车零部件有限公司 | Start-up and shut-down control method for automatic conveying belt system |
-
2010
- 2010-06-29 CN CN201020240525XU patent/CN201732705U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001479A (en) * | 2012-10-30 | 2013-03-27 | 广东易事特电源股份有限公司 | Large-power phase-controlled rectifier start-and-stop circuit |
| CN103001479B (en) * | 2012-10-30 | 2014-11-05 | 广东易事特电源股份有限公司 | Large-power phase-controlled rectifier start-and-stop circuit |
| CN109343398A (en) * | 2018-10-19 | 2019-02-15 | 林建明 | A kind of voltage over zero high-voltage arc inhibition system |
| CN109704007A (en) * | 2018-12-14 | 2019-05-03 | 上海新朋联众汽车零部件有限公司 | Start-up and shut-down control method for automatic conveying belt system |
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