CN203057063U - Starting operation compensation electric control device of three-phase asynchronous motor - Google Patents
Starting operation compensation electric control device of three-phase asynchronous motor Download PDFInfo
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- CN203057063U CN203057063U CN 201320020429 CN201320020429U CN203057063U CN 203057063 U CN203057063 U CN 203057063U CN 201320020429 CN201320020429 CN 201320020429 CN 201320020429 U CN201320020429 U CN 201320020429U CN 203057063 U CN203057063 U CN 203057063U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The utility model relates to a starting operation compensation electric control device of a three-phase asynchronous motor, which relates to an auxiliary device matched with an electric motor. The problems of the three-phase asynchronous motor that the starting torque is small in the actual operation, and the power factor of an incoming line end can not satisfy the requirement, are solved. The starting way comprises the following steps: closing a No.1air switch and a No.2air switch, and a normally closed switch of a protector; electrifying a No.1 contact coil, switching on a main circuit, and making the electric motor operate. Simultaneously, an operation compensator is accessed to the electric motor. After a No.1 alternative current contact is closed, normally closed switches of a No.1 time relay and a No.2 time relay are closed, a No.2 contact coil and a No.3 contact coil are electrified, and a start compensator is accessed to the main circuit. When the rotation speed of the electric motor reaches the rated rotation speed, the normally closed switches of the No.1 time relay and the No.2 time relay are opened in the time delay way, the start compensator and the main circuit are switched off, and a No.1 normally closed contactor, a No.2 normally closed contactor and a No.3 normally closed contactor are closed, and the start compensator is discharged. The starting operation compensation electric control device is mounted on the three-phase asynchronous motor.
Description
Technical field
The utility model relates to servicing unit a kind of and that motor is supporting, particularly the comprehensive electric control gear of a kind of high efficiency energy-conserving threephase asynchronous starting, operation compensation and protection.
Background technology
In each industrial and mining enterprises that widely applies threephase asynchronous, supportingly need under the high starting torque operating mode when dragging relevant device, often adopting increases the motor installed power, satisfy the starting torque demand, though can normal starting but do driven equipment like this, but during running, bearing power has only the 20-40% of installed power, has caused the defective of " low load with strong power "; The waste electric energy.
For satisfying the desired power factor specification of power supply department, generally all be to go into end at power distribution network to carry out reactive power compensation, reduce distribution loss.Energy-saving three-phase asynchronous motor is extensive use, because motor disperses to be installed on each mechanized equipment, its correspondence by switchgear house in the formed transmission and distribution networks of each motor distribution, exist a large amount of reactive currents, cause corresponding loss, and the operating condition that depends on threephase asynchronous reality, the power factor of end of incoming cables also change thereupon, far can not satisfy the demand of desirable reactive power compensation.
The utility model content
The purpose of this utility model is at the problem that in service starting torque little, power factor end of incoming cables be difficult to satisfy reactive power compensation demand of threephase asynchronous in reality, and a kind of threephase asynchronous starting operation compensation electric control gear is provided.
A kind of threephase asynchronous starting operation compensation electric control gear, an air switch, an A.C. contactor and a contactor coil is characterized in that: it comprises No. two air switches, No. two A.C. contactors, No. three A.C. contactors, No. two contactor coils, No. three contactor coils, protector, time relay coil, No. two time relay coils, time relay normally closed switch, No. two time relay normally closed switchs, coupled switch, starting compensator, running compensator, from switch, starting switch and stop button switch;
The A phase inlet wire terminals of air switch, B phase inlet wire terminals and C phase inlet wire terminals are connected with three phase mains respectively,
The A phase outlet terminals of air switch are connected with the power contact 1 of protector;
The A phase outlet terminals of air switch, B phase outlet terminals and C phase outlet terminals respectively with A phase inlet wire terminals, B phase inlet wire terminals and C phase inlet wire corresponding connection of terminals of an A.C. contactor;
The other end of a contactor coil connects an end of stop button switch, the other end of stop button switch connect simultaneously coupled switch moved end, starting switch the moved end and from the moved end of switch;
The quiet end of coupled switch connects the moved end of carrying out relay in the leading-out terminal of the time relay in the quiet end, protector of starting switch and the protector simultaneously;
The end of incoming cables of the time relay in the quiet end connection protector of switch;
The quiet end of the execution relay of protector connects the C phase outlet terminals of an air switch and the power contact 3 of protector simultaneously;
The A that the A phase outlet terminals of an A.C. contactor connect the A phase inlet wire terminals of A phase power input, No. two air switches of A phase inlet wire terminals, running compensator of No. two A.C. contactors and motor simultaneously is power input mutually;
The B phase outlet terminals of an A.C. contactor connect the B power input mutually of B phase inlet wire terminals, the running B phase power input of compensator and the motor of No. two A.C. contactors simultaneously;
The C that the C phase outlet terminals of an A.C. contactor connect the C phase inlet wire terminals of No. two A.C. contactors and running compensator simultaneously is the C power input mutually of the C phase inlet wire terminals of power input, No. two air switches and motor mutually;
The A that the A phase power output end of running compensator connects the A phase power input of No. three A.C. contactors and motor simultaneously is the offset supply input mutually;
The B that the B phase power output end of running compensator connects the B phase power input of No. three A.C. contactors and motor simultaneously is the offset supply input mutually;
The C that the C phase power output end of running compensator connects the C phase power input of No. three A.C. contactors and motor simultaneously is the offset supply input mutually;
The A phase outlet terminals of No. two A.C. contactors, B phase outlet terminals and C phase outlet terminals are connected with A phase power inleting terminal, B phase power inleting terminal and the C phase power inleting terminal of starting compensator respectively;
The A phase power outlet end of starting compensator, B phase power outlet end and C mutually the power outlet end respectively with A phase inlet wire terminals, B phase inlet wire terminals and the C phase inlet wire terminals of No. three A.C. contactors;
The mutually quiet end of the A of No. two air switches connects the inlet wire terminals of the inlet wire terminals of the inlet wire terminals of a time relay coil, No. two time relay coils, No. two contactor coils and the inlet wire terminals of No. three contactor coils simultaneously;
The outlet terminals of No. two contactor coils and the outlet terminals of No. three contactor coils are connected the inlet wire terminals of No. two time relay normally closed switchs simultaneously, the outlet terminals of No. two time relay normally closed switchs connect the inlet wire terminals of a time relay normally closed switch, and the outlet terminals of a time relay normally closed switch connect the outlet terminals of the outlet terminals of a time relay coil, No. two time relay coils and the quiet end of No. two air switches simultaneously.
Advantage of the present utility model: the parameter of high efficiency energy-conserving threephase asynchronous starting operation compensation electric control gear and high efficiency energy-conserving threephase asynchronous optimum start compensated torque and reactive power compensation demand are complementary, when motor starting, starting compensator and running compensator move simultaneously, improve starting torque, starting compensator automatic disconnection when motor operation reaches rated revolution, only remaining running reactive-load compensator operation.Make motor self be able to reactive power compensation, make it under the situation that does not change reactive compensation capacity, by fully loaded in service to the overall process of underloading, its power factor can both keep best idealized level; In addition, can also avoid self-excitation after asynchronous motor and electrical network cut-off etc., further optimize motor performance, improve operational efficiency.It is safe and reliable, simple in structure, wiring, easy to maintenance, low temperature resistant, shatter-proof, long service life.
Description of drawings
Fig. 1 is circuit connection diagram of the present utility model.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1, a kind of threephase asynchronous starting operation compensation of present embodiment electric control gear, an air switch K1, an A.C. contactor KM and a contactor coil KMA is characterized in that: it comprises air switch K2 No. two, No. two A.C. contactor KM1, No. three A.C. contactor KM2, No. two contactor coil KM1A, No. three contactor coil KM2A, protector BHQ, a time relay coil SJ1, No. two time relay coil SJ2, a time relay normally closed switch JS1, No. two time relay normally closed switch JS2, coupled switch KM3, starting compensator QB, running compensator BY, from K switch 3, starting switch QA and stop button switch TA;
The A phase inlet wire terminals of air switch K1, B phase inlet wire terminals and C phase inlet wire terminals are connected with three phase mains respectively, and the A phase outlet terminals of air switch K1 are connected with the power contact 1 of protector BHQ;
The A phase outlet terminals of air switch K1, B phase outlet terminals and C phase outlet terminals respectively with A phase inlet wire terminals, B phase inlet wire terminals and C phase inlet wire corresponding connection of terminals of an A.C. contactor KM;
The other end of a contactor coil KMA connects the end of stop button switch TA, and the other end of stop button switch TA connects the moved end of the moved end of coupled switch KM3, starting switch QA and simultaneously from the moved end of K switch 3;
The quiet end of coupled switch KM3 connects the moved end of carrying out relay among the leading-out terminal of the time relay in the quiet end, protector BHQ of starting switch QA and the protector BHQ simultaneously;
The end of incoming cables of the time relay in the quiet end connection protector BHQ of K switch 3;
The quiet end of the execution relay of protector BHQ connects the C phase outlet terminals of an air switch K1 and the power contact 3 of protector BHQ simultaneously;
The A that the A phase outlet terminals of an A.C. contactor KM connect the A phase inlet wire terminals of the A phase inlet wire terminals of No. two A.C. contactor KM1, the A phase power input of running compensator BY, No. two air switch K2 and motor M simultaneously is power input mutually;
The B that the B phase outlet terminals of an A.C. contactor KM connect the B phase power input of B phase inlet wire terminals, running compensator BY of No. two A.C. contactor KM1 and motor M simultaneously is power input mutually;
The C that the C phase outlet terminals of an A.C. contactor KM connect the C phase inlet wire terminals of No. two A.C. contactor KM1 and running compensator BY simultaneously is the C power input mutually of the C phase inlet wire terminals of power input, No. two air switch K2 and motor M mutually;
The A that the A phase power output end of running compensator BY connects the A phase power input of No. three A.C. contactor KM2 and motor M simultaneously is the offset supply input mutually;
The B that the B phase power output end of running compensator BY connects the B phase power input of No. three A.C. contactor KM2 and motor M simultaneously is the offset supply input mutually;
The C that the C phase power output end of running compensator BY connects the C phase power input of No. three A.C. contactor KM2 and motor M simultaneously is the offset supply input mutually;
The A phase outlet terminals of No. two A.C. contactor KM1, B phase outlet terminals and C phase outlet terminals are connected with A phase power inleting terminal, B phase power inleting terminal and the C phase power inleting terminal of starting compensator QB respectively;
The A phase power outlet end of starting compensator QB, B phase power outlet end and C mutually the power outlet end respectively with A phase inlet wire terminals, B phase inlet wire terminals and the C phase inlet wire terminals of No. three A.C. contactor KM2;
The mutually quiet end of the A of No. two air switch K2 connects the inlet wire terminals of the inlet wire terminals of the inlet wire terminals of a time relay coil SJ1, No. two time relay coil SJ2, No. two contactor coil KM1A and the inlet wire terminals of No. three contactor coil KM2A simultaneously;
The outlet terminals of No. two contactor coil KM1A and the outlet terminals of No. three contactor coil KM2A are connected the inlet wire terminals of No. two time relay normally closed switch JS2 simultaneously, the outlet terminals of No. two time relay normally closed switch JS2 connect the inlet wire terminals of a time relay normally closed switch JS1, and the outlet terminals of a time relay normally closed switch JS1 connect the outlet terminals of the outlet terminals of a time relay coil SJ1, No. two time relay coil SJ2 and the quiet end of No. two air switch K2 simultaneously.
Embodiment two: present embodiment is described below in conjunction with Fig. 1, present embodiment and execution mode one difference are, the described a kind of threephase asynchronous starting operation compensation electric control gear of present embodiment, it also comprises discharge resistance R1, No. two discharge resistance R2, No. three discharge resistance R3, normally closed contactor KM1-1, No. two normally closed contactor KM1-2 and No. three normally closed contactor KM2-1;
A described normally closed contactor KM1-1, No. two normally closed contactor KM1-2 and No. three normally closed contactor KM2-1 form one group of coupled switch;
The A phase outlet terminals of described No. two A.C. contactor KM1 are connected with the end of No. three discharge resistance R3;
The other end of No. three discharge resistance R3 connects the end of No. three normally closed contactor KM2-1, and the other end of No. three normally closed contactor KM2-1 is connected with the A phase inlet wire terminals of No. three A.C. contactor KM2 and the A phase power outlet end of starting compensator QB simultaneously;
The B phase outlet terminals of No. two A.C. contactor KM1 are connected with the end of No. two discharge resistance R2;
The other end of No. two discharge resistance R2 connects the end of No. two normally closed contactor KM1-2, and the other end of No. two normally closed contactor KM1-2 is connected with the B phase inlet wire terminals of No. three A.C. contactor KM2 and the B phase power outlet end of starting compensator QB simultaneously;
The C phase outlet terminals of No. two A.C. contactor KM1 are connected with the end of a discharge resistance R1;
The other end of a discharge resistance R1 connects the end of a normally closed contactor KM1-1, and the other end of a normally closed contactor KM1-1 is connected with the C phase inlet wire terminals of No. three A.C. contactor KM2 and the C phase power outlet end of starting compensator QB simultaneously.
Embodiment three: present embodiment is described below in conjunction with Fig. 1, present embodiment and execution mode one difference are, the described a kind of threephase asynchronous starting operation compensation electric control gear of present embodiment, it also comprises fuse FU1, No. two fuse FU2 and No. three fuse FU3;
Fuse FU1 is connected between the A phase outlet terminals and contactor coil KMA of an air switch K1;
Between the mutually quiet end of A that No. two fuse FU2 are connected on No. two air switch K2 and the inlet wire terminals of a time relay coil SJ1;
Between the mutually quiet end of C that No. three fuse FU3 are connected on No. two air switch K2 and the outlet terminals of a time relay coil SJ1.
Operation principle:
1, starting
Close No. one air switch K1, No. two air switch K2, protector BHQ energising, the normally closed switch of protector BHQ is connected; ready for control circuit work, press starting switch QA, No. one contactor coil KMA gets; an A.C. contactor KM closure, main circuit is connected, motor M running.Self-insurance is carried out in No. two A.C. contactor KM1 adhesive simultaneously.Running compensator YB inserts motor M.
After the A.C. contactor KM closure, a time relay sj 1 and No. two time relay sj 2 coils get, a time relay normally closed switch JS1 and No. two time relay normally closed switch JS2 closures, No. two contactor coil KM1A and No. three contactor coil KM2A get, No. two A.C. contactor KM1 and No. three A.C. contactor KM2 closures, starting compensator QB inserts main circuit, put into operation, when motor M reaches rated speed, a time relay normally closed switch JS1 and No. two time relay normally closed switch JS2 are through Time Delay Opening, No. two contactor coil KM1A and No. three contactor coil KM2A dead electricity, starting compensator QB and main circuit disconnect, out of service, a normally closed contactor KM1-1, No. two normally closed contactor KM1-2, No. three normally closed contactor KM2-1 normally closed interlock closures, with a discharge resistance R1, No. two discharge resistance R2 and No. three discharge resistance R3 insert, and starting compensator is discharged.
2 stop
Press the stop button TA of starter, the control circuit outage, No. one A.C. contactor KM disconnects, and motor M shuts down.
3 protective features
Protector BHQ under normal circumstances, the execution relay adhesive of protector BHQ, No. one A.C. contactor KM normally connects.The execution relay of protector BHQ discharges when breaking down, an A.C. contactor KM outage.
The utility model can directly be installed on the high efficiency energy-conserving threephase asynchronous, with the high efficiency energy-conserving threephase asynchronous mechanism that is integrated, the parameter of high efficiency energy-conserving threephase asynchronous starting compensator and running compensator and the compensation of motor optimum start and reactive power compensation demand are complementary, and highlight high efficiency, High Power Factor, high starting torque " three height " characteristic.Make motor be able to efficient running.
The utility model is not limited to above-mentioned execution mode, can also be the reasonable combination of technical characterictic described in the respective embodiments described above.
Claims (3)
1. a threephase asynchronous starting operation compensates electric control gear, an air switch (K1), an A.C. contactor (KM) and a contactor coil (KMA) is characterized in that: it comprises No. two air switches (K2), No. two A.C. contactors (KM1), No. three A.C. contactors (KM2), No. two contactor coils (KM1A), No. three contactor coils (KM2A), protector (BHQ), a time relay coil (SJ1), No. two time relay coils (SJ2), a time relay normally closed switch (JS1), No. two time relay normally closed switchs (JS2), coupled switch (KM3), starting compensator (QB), running compensator (BY), from switch (K3), starting switch (QA) and stop button switch (TA);
The A phase inlet wire terminals of an air switch (K1), B phase inlet wire terminals and C phase inlet wire terminals are connected with three phase mains respectively,
The A phase outlet terminals of an air switch (K1) are connected with the power contact 1 of protector (BHQ);
The A phase outlet terminals of an air switch (K1), B phase outlet terminals and C phase outlet terminals respectively with A phase inlet wire terminals, B phase inlet wire terminals and C phase inlet wire corresponding connection of terminals of an A.C. contactor (KM);
The other end of a contactor coil (KMA) connects an end of stop button switch (TA), and the other end of stop button switch (TA) connects the moved end of the moved end of coupled switch (KM3), starting switch (QA) and simultaneously from the moved end of switch (K3);
The quiet end of coupled switch (KM3) connects the quiet end of starting switch (QA), leading-out terminal and the middle moved end of carrying out relay of protector (BHQ) of the middle time relay of protector (BHQ) simultaneously;
The end of incoming cables of the time relay in the quiet end connection protector (BHQ) of switch (K3);
The quiet end of the execution relay of protector (BHQ) connects the C phase outlet terminals of an air switch (K1) and the power contact 3 of protector (BHQ) simultaneously;
The A that the A phase outlet terminals of an A.C. contactor (KM) connect the A phase inlet wire terminals of A phase power input, No. two air switches (K2) of A phase inlet wire terminals, running compensator (BY) of No. two A.C. contactors (KM1) and motor (M) simultaneously is power input mutually;
The B phase outlet terminals of an A.C. contactor (KM) connect the B phase power input of B phase inlet wire terminals, running compensator (BY) of No. two A.C. contactors (KM1) and the B of motor (M) power input mutually simultaneously;
The C that the C phase outlet terminals of an A.C. contactor (KM) connect the C phase inlet wire terminals of No. two A.C. contactors (KM1) and running compensator (BY) simultaneously is the C power input mutually of the C phase inlet wire terminals of power input, No. two air switches (K2) and motor (M) mutually;
The A that the A phase power output end of running compensator (BY) connects the A phase power input of No. three A.C. contactors (KM2) and motor (M) simultaneously is the offset supply input mutually;
The B that the B phase power output end of running compensator (BY) connects the B phase power input of No. three A.C. contactors (KM2) and motor (M) simultaneously is the offset supply input mutually;
The C that the C phase power output end of running compensator (BY) connects the C phase power input of No. three A.C. contactors (KM2) and motor (M) simultaneously is the offset supply input mutually;
The A phase outlet terminals of No. two A.C. contactors (KM1), B phase outlet terminals and C phase outlet terminals are connected with A phase power inleting terminal, B phase power inleting terminal and the C phase power inleting terminal of starting compensator (QB) respectively;
The A phase power outlet end of starting compensator (QB), B phase power outlet end and C mutually the power outlet end respectively with A phase inlet wire terminals, B phase inlet wire terminals and the C phase inlet wire terminals of No. three A.C. contactors (KM2);
The mutually quiet end of A of No. two air switches (K2) connects the inlet wire terminals of a time relay coil (SJ1), the inlet wire terminals of No. two time relay coils (SJ2), the inlet wire terminals of No. two contactor coils (KM1A) and the inlet wire terminals of No. three contactor coils (KM2A) simultaneously;
The outlet terminals of No. two contactor coils (KM1A) and the outlet terminals of No. three contactor coils (KM2A) are connected the inlet wire terminals of No. two time relay normally closed switchs (JS2) simultaneously, the outlet terminals of No. two time relay normally closed switchs (JS2) connect the inlet wire terminals of a time relay normally closed switch (JS1), and the outlet terminals of a time relay normally closed switch (JS1) connect the outlet terminals of a time relay coil (SJ1) simultaneously, the quiet end of the outlet terminals of No. two time relay coils (SJ2) and No. two air switches (K2).
2. a kind of threephase asynchronous starting operation according to claim 1 compensates electric control gear, and it is characterized in that: it also comprises a discharge resistance (R1), No. two discharge resistances (R2), No. three discharge resistances (R3), a normally closed contactor (KM1-1), No. two normally closed contactors (KM1-2) and No. three normally closed contactors (KM2-1);
A described normally closed contactor (KM1-1), No. two normally closed contactors (KM1-2) and No. three normally closed contactors (KM2-1) are formed one group of coupled switch;
The A phase outlet terminals of described No. two A.C. contactors (KM1) are connected with an end of No. three discharge resistances (R3);
The other end of No. three discharge resistances (R3) connects an end of No. three normally closed contactors (KM2-1), and the other end of No. three normally closed contactors (KM2-1) is connected with the A phase inlet wire terminals of No. three A.C. contactors (KM2) and the A phase power outlet end of starting compensator (QB) simultaneously;
The B phase outlet terminals of No. two A.C. contactors (KM1) are connected with an end of No. two discharge resistances (R2);
The other end of No. two discharge resistances (R2) connects an end of No. two normally closed contactors (KM1-2), and the other end of No. two normally closed contactors (KM1-2) is connected with the B phase inlet wire terminals of No. three A.C. contactors (KM2) and the B phase power outlet end of starting compensator (QB) simultaneously;
The C phase outlet terminals of No. two A.C. contactors (KM1) are connected with an end of a discharge resistance (R1);
The other end of a discharge resistance (R1) connects an end of a normally closed contactor (KM1-1), and the other end of a normally closed contactor (KM1-1) is connected with the C phase inlet wire terminals of No. three A.C. contactors (KM2) and the C phase power outlet end of starting compensator (QB) simultaneously.
3. a kind of threephase asynchronous starting operation according to claim 1 compensates electric control gear, and it is characterized in that: it also comprises a fuse (FU1), No. two fuses (FU2) and No. three fuses (FU3);
A fuse (FU1) is connected between the A phase outlet terminals and a contactor coil (KMA) of an air switch (K1);
No. two fuses (FU2) are connected between the inlet wire terminals of the mutually quiet end of A of No. two air switches (K2) and a time relay coil (SJ1);
No. three fuses (FU3) are connected between the outlet terminals of the mutually quiet end of C of No. two air switches (K2) and a time relay coil (SJ1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320020429 CN203057063U (en) | 2013-01-15 | 2013-01-15 | Starting operation compensation electric control device of three-phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320020429 CN203057063U (en) | 2013-01-15 | 2013-01-15 | Starting operation compensation electric control device of three-phase asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203057063U true CN203057063U (en) | 2013-07-10 |
Family
ID=48739979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320020429 Expired - Lifetime CN203057063U (en) | 2013-01-15 | 2013-01-15 | Starting operation compensation electric control device of three-phase asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203057063U (en) |
-
2013
- 2013-01-15 CN CN 201320020429 patent/CN203057063U/en not_active Expired - Lifetime
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Starting operation compensation electric control device of three-phase asynchronous motor Effective date of registration: 20190624 Granted publication date: 20130710 Pledgee: Heilongjiang Dazheng Saifu Venture Capital Enterprise (L.P.) Pledgor: Jixi Deyuan Electrical Appliances Co.,Ltd. Registration number: 2019230000004 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200102 Granted publication date: 20130710 Pledgee: Heilongjiang Dazheng Saifu Venture Capital Enterprise (L.P.) Pledgor: Jixi Deyuan Electrical Appliances Co.,Ltd. Registration number: 2019230000004 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Starting operation compensation electric control device of three-phase asynchronous motor Effective date of registration: 20200120 Granted publication date: 20130710 Pledgee: Tian Lamei Pledgor: Jixi Deyuan Electrical Appliances Co.,Ltd. Registration number: Y2020370000015 |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |