CN209981144U - Emergency brake-separating delay re-actuating device of permanent magnet circuit breaker - Google Patents
Emergency brake-separating delay re-actuating device of permanent magnet circuit breaker Download PDFInfo
- Publication number
- CN209981144U CN209981144U CN201920939233.6U CN201920939233U CN209981144U CN 209981144 U CN209981144 U CN 209981144U CN 201920939233 U CN201920939233 U CN 201920939233U CN 209981144 U CN209981144 U CN 209981144U
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- contact
- permanent magnet
- magnet circuit
- control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Keying Circuit Devices (AREA)
Abstract
An emergency opening delay re-action device of a permanent magnet circuit breaker relates to the field of power equipment control protection and solves the problem of circuit breaker rejection caused by failure of a tripping control loop of a permanent magnet circuit breaker body. The utility model discloses a permanent magnetism circuit breaker promptly separating brake time delay rerailing device mainly includes: the circuit breaker comprises a miniature circuit breaker, a control contactor, a first resistor, a second resistor, a diode, a detection control unit, an alarm relay, an alarm indicator lamp and a self-reset button. When the permanent magnet circuit breaker works normally, self-isolation is carried out, and normal operation of the permanent magnet circuit breaker is not affected. When the permanent magnet circuit breaker fails to operate, the permanent magnet circuit breaker can be directly operated to trip, the trip intensity is increased to be more than 2 times of the normal intensity, the permanent magnet circuit breaker can be ensured to finally complete the trip, and the device has the functions of warning output, warning indication, closing locking and the like.
Description
Technical Field
The utility model relates to a power equipment control protection technical field, concretely relates to urgent separating brake time delay of permanent magnetism circuit breaker moves device again.
Background
The circuit breaker refusing is a difficult problem which is always faced by the whole power industry, and the problem of exposure is more and more along with the increase of the service life of the vacuum circuit breaker, the circuit breaker refusing not only can cause the fault shutdown of a transformer substation to influence normal production and domestic electricity consumption, but also can damage related electrical equipment, thereby bringing huge economic loss to power enterprises, and the circuit breaker is rejected to trip, so that the circuit breaker at the upper stage can trip, namely 'override trip'. This will expand the scope of the power failure, and even sometimes cause the system to be disconnected, resulting in a serious accident of large area power failure. Thus, "rejections" are more hazardous than "rejections".
At present, the existing safety protection devices are only suitable for spring-operated circuit breakers and are not suitable for permanent magnet circuit breakers. And because the tripping and closing coils of the spring-operated circuit breaker can not be electrified for a long time, the conventional safety protection device mainly aims to protect the tripping and closing coils from being burnt. In addition, the conventional safety protection device can perform secondary operation on the breaker after the breaker fails to operate, but still utilizes the original tripping and closing loop of the breaker to perform control, and cannot play any role after the tripping and closing loop of the breaker body fails.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the breaker that permanent magnetism breaker body tripping operation control return circuit became invalid and caused refused the jump, the utility model provides a urgent separating brake time delay of permanent magnetism breaker does not move device again.
The utility model discloses a technical scheme that the solution technique adopted as follows:
the utility model discloses a permanent magnetism circuit breaker promptly separating brake time delay rerailing device, include: the device comprises a miniature circuit breaker, a control contactor, a first resistor, a second resistor, a diode, a detection control unit, an alarm relay, an alarm indicator lamp and a self-reset button;
two contacts of the miniature circuit breaker are respectively connected with a DC + end and a DC-end of a bus;
a first contact of the control contactor, a second resistor, a permanent magnet circuit breaker mechanism coil, the first resistor and a second contact of the control contactor are connected in series in sequence and then connected in parallel at two ends of the miniature circuit breaker;
the external tripping signal of the switch cabinet is connected with a diode, the other end of the diode is connected with a detection control unit, a first control contact of the detection control unit is connected with a first contact of a control contactor, the other end of the detection control unit is connected with a standby auxiliary contact of a permanent magnet circuit breaker, and the standby auxiliary contact of the permanent magnet circuit breaker is connected with a second contact of the control contactor;
one end of a coil of the control contactor is connected with a standby auxiliary contact of the permanent magnet circuit breaker, the standby auxiliary contact of the permanent magnet circuit breaker is connected with a second contact of the control contactor, the other end of the coil of the control contactor is connected with a second control contact of the detection control unit, and the second control contact of the detection control unit is connected with a first contact of the control contactor;
the self-reset button, the first contact of the alarm relay and the coil of the alarm relay are connected in series, the third contact of the control contactor is connected with two ends of the first contact of the alarm relay in parallel, the alarm indicator lamp in the self-reset button indicator lamp is connected with two ends of the coil of the alarm relay in parallel, the self-reset button is connected with the first contact of the control contactor, and the coil of the alarm relay is connected with the second contact of the control contactor;
two ends of a second contact of the alarm relay are respectively connected with a terminal block of the switch cabinet;
and two ends of a fourth contact of the control contactor are respectively connected with an external control loop of the switch cabinet.
Further, the first resistor adopts RX20-25W-5 omega.
Further, the second resistor adopts RX20-25W-5 omega.
Further, the detection control unit adopts HHS5C-A
The utility model has the advantages that:
1. the utility model discloses a permanent magnetism circuit breaker promptly separating brake time delay moves device again as a reserve trip gear, one kind promptly can operate the device of permanent magnetism circuit breaker forced separating brake when permanent magnetism circuit breaker separating brake is unusual, mainly adopts time delay detection, time delay heavy move, promotes trip intensity, direct action to realize in key technologies such as final operating coil.
2. When the device detects an external tripping signal and detects the rejection of the permanent magnet circuit breaker in a delayed manner, all control loops of the original permanent magnet circuit breaker are eliminated, a power supply is directly acted on a final core operating mechanism, namely a permanent magnet circuit breaker mechanism coil, of the permanent magnet circuit breaker, the tripping intensity is improved to be more than 2 times of the normal intensity, and the permanent magnet circuit breaker is ensured to be capable of finally completing tripping.
3. When the permanent magnet circuit breaker normally works, the device can carry out self-isolation without influencing the normal operation of the permanent magnet circuit breaker.
4. When the permanent magnet circuit breaker refuses to operate, the device can directly operate the permanent magnet circuit breaker to trip, and the trip intensity is improved to be more than 2 times of the normal intensity, so that the permanent magnet circuit breaker can finally complete the trip, and the device has the functions of warning output, warning indication, closing locking and the like.
5. The utility model discloses a permanent magnetism circuit breaker promptly separating brake time delay rerailing device mounting means is simple and easy, easy operation.
Drawings
Fig. 1 is the electric schematic diagram of the emergency opening delay re-actuating device of the permanent magnet circuit breaker.
In the figure: ZK, a miniature circuit breaker, KM1, a control contactor, 1L1-2T1, a first contact, 4T2-3L2, a second contact, 13NO-14NO, a third contact, 5T3-6L3, a fourth contact, R1A first resistor, R2The circuit breaker comprises a first resistor, a second resistor, a coil of a permanent magnet circuit breaker mechanism, a QF (quad Flat No-lead) and standby auxiliary contact, a D, a diode, a KT, a detection control unit, a KT-1, a first control contact, a KT-2, a second control contact, a KJ1, an alarm relay, an RD1, an alarm indicator lamp, an RD2 and a self-reset button.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model discloses a permanent magnetism circuit breaker promptly separating brake time delay rerailing device mainly includes: the power supply circuit, the detection control loop, the trip control loop and the restart alarm indication loop.
As shown in fig. 1, the utility model discloses a permanent magnet circuit breaker promptly separating brake time delay rerailing device mainly includes: miniature circuit breaker ZK, control contactor KM1, first contact 1L1-2T1, second contact 4T2-3L2, third contact 13NO-14NO, fourth contact 5T3-6L3, first resistor R1A second resistor R2The device comprises a diode D, a detection control unit KT, a first control contact KT-1, a second control contact KT-2, an alarm relay KJ1, an alarm indicator lamp RD1 and a self-reset button RD 2.
The first contact 1-2 of the miniature circuit breaker ZK is connected with the DC + end of the bus through +1KM, and the first contact 3-4 of the miniature circuit breaker ZK is connected with the DC-end of the bus through-1 KM.
The first contact 1L1-2T1 and the second resistor R of the control contactor2Permanent magnet circuit breaker mechanism coil L and first resistor R1And the second contacts 4T2-3L2 of the control contactor are sequentially connected in series and then connected in parallel at two ends of the miniature circuit breaker ZK. Wherein, the 2(-) terminal of the coil L of the permanent magnetic breaker mechanism is connected with a second resistor R2The 1(+) end of the coil L of the permanent magnet circuit breaker mechanism is connected with a first resistor R1。
The external tripping signal of the switch cabinet is connected with a diode D, the other end of the diode D is connected with a detection control unit KT, a first control contact KT-1 of the detection control unit KT is connected with a first contact 1L1-2T1 of a control contactor, the other end of the detection control unit KT is connected with a standby auxiliary contact QF of a permanent magnet circuit breaker, and the standby auxiliary contact QF of the permanent magnet circuit breaker is connected with a second contact 4T2-3L2 of the control contactor. The circuit is a detection control circuit and is used for detecting an external tripping signal.
One end of a coil A1-A2 of the control contactor KM1 is connected with a standby auxiliary contact QF of the permanent magnet circuit breaker, the standby auxiliary contact QF of the permanent magnet circuit breaker is connected with a second contact 4T2-3L2 of the control contactor, the other end of the coil A1-A2 of the control contactor KM1 is connected with a second control contact 2 of the detection control unit KT, and the second control contact KT-2 of the detection control unit KT is connected with a first contact 1L1-2T1 of the control contactor. The circuit is a trip control circuit and is used for correspondingly controlling an external trip signal.
The self-reset button RD2, the first contact 1-2 of the alarm relay and the coil 5-6 of the alarm relay KJ1 in the self-reset button indicator lamp are connected in series, the third contact 13NO-14NO of the control contactor KM1 is connected in parallel to two ends of the first contact 1-2 of the alarm relay, the alarm indicator lamp RD1 in the self-reset button indicator lamp is connected in parallel to two ends of the coil 5-6 of the alarm relay KJ1, the self-reset button RD2 is connected with the first contact 1L1-2T1 of the control contactor, and the coil 5-6 of the alarm relay KJ1 is connected with the second contact 4T2-3L2 of the control contactor. The loop is a restart alarm indication loop and is used for restart alarm indication.
Two ends of the second contact 3-4 of the alarm relay are respectively connected with the terminal strip of the switch cabinet, and the alarm relay is a re-actuation alarm output loop.
Two ends of a fourth contact 5T3-6L3 of the control contactor KM1 are respectively connected with a switch cabinet external control loop, and the fourth contact 5T3-6L3 of the control contactor KM1 is a closing locking contact.
In the present embodiment, the first resistor R1Adopting RX20-25W-5 omega, and a second resistor R2With RX20-25W-5 omega,
in the present embodiment, the detection control unit KT employs a time relay HHS 5C-a.
Miniature circuit breaker ZK, first resistance R1A second resistor R2The functions are respectively as follows: the function of the miniature circuit breaker ZK is to prevent the device from being burnt out caused by the short circuit of the power supply loop of the device and the first resistor R1Acting as a current limiting, second resistor R2Acts as a current limit.
The utility model discloses a permanent magnetism circuit breaker promptly separating brake time delay moves device again, its main theory of operation as follows:
when the miniature circuit breaker ZK is closed, the whole resetting device is in a ready state.
The restarting device starts to collect an external tripping signal in the switch cabinet, the diode D is used for carrying out backstopping, the detection control unit KT detects the external tripping signal, and a first control contact KT-1 is closed in advance for self-holding after the external tripping signal disappears; and meanwhile, the detection control unit KT detects the action state of the permanent magnetic circuit breaker, when the permanent magnetic circuit breaker normally acts, the standby auxiliary contact QF of the permanent magnetic circuit breaker is switched from closed to open, a monitoring loop of the detection control unit KT is cut off, the detection control unit KT releases the closing of the first control contact KT-1, the action is released, and the normal tripping action of the permanent magnetic circuit breaker is not participated.
When the tripping action of the permanent magnet circuit breaker is abnormal, the permanent magnet circuit breaker does not complete the tripping action within the specified tripping action time, the detection control unit KT controls the second control contact KT-2 to be closed, drives the coil A1-A2 of the control contactor KM1 to be switched on, controls the first contact 1L1-2T1 of the control contactor to be closed, controls the second contact 4T2-3L2 of the control contactor to be closed, controls the third contact 13NO-14NO to be closed and controls the fourth contact 5T3-6L3 to be switched off, and simultaneously completes the functions of the opening control, the re-action alarm indication, the re-action alarm output and the closing loop of the permanent magnet circuit breaker.
The third contact 13NO-14NO of the control contactor KM1 is closed, the coil 5-6 of the warning relay KJ1 is driven to act, the first contact 1-2 of the warning relay is closed, and the self-locking function of the warning loop is completed; and the alarm indicator lamp RD1 is turned on when being turned off, the second contact 3-4 of the alarm relay is closed, and meanwhile, an alarm signal is sent out to prompt that the permanent magnet circuit breaker works abnormally.
When the permanent magnet circuit breaker re-tripping action is completed, the device automatically resets and simultaneously releases a closed circuit, the fourth contact 5T3-6L3 (closed locking contact) of the control contactor KM1 returns to a closed state, but alarm indication and alarm output are not released, because the device action means that the permanent magnet circuit breaker tripping action is abnormal, the self-resetting button RD2 needs to be manually pressed to disconnect the contact NC-C, and the device alarm resetting is completed.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. Urgent separating brake time delay of permanent magnetism circuit breaker moves device again, its characterized in that includes: a miniature circuit breaker (ZK), a control contactor (KM1), a first resistor (R)1) A second resistor (R)2) Diode (D), detection control unit (KT) and alarm relay(KJ1), alarm indicator lamp (RD1), self-reset button (RD 2);
two contacts of the miniature circuit breaker (ZK) are respectively connected with a bus (DC +) end and a (DC-) end;
a first contact (1L1-2T1) of the control contactor and a second resistor (R)2) Permanent magnet circuit breaker mechanism coil (L), first resistance (R)1) The second contacts (4T2-3L2) of the control contactor are sequentially connected in series and then are connected in parallel at two ends of the miniature circuit breaker (ZK);
the external tripping signal of the switch cabinet is connected with a diode (D), the other end of the diode (D) is connected with a detection control unit (KT), a first control contact (KT-1) of the detection control unit (KT) is connected with a first contact (1L1-2T1) of a control contactor, the other end of the detection control unit (KT) is connected with a standby auxiliary contact (QF) of a permanent magnet circuit breaker, and the standby auxiliary contact (QF) of the permanent magnet circuit breaker is connected with a second contact (4T2-3L2) of the control contactor;
one end of a coil (A1-A2) of the control contactor (KM1) is connected with a standby auxiliary contact (QF) of the permanent magnet circuit breaker, the standby auxiliary contact (QF) of the permanent magnet circuit breaker is connected with a second contact (4T2-3L2) of the control contactor, the other end of the coil (A1-A2) of the control contactor (KM1) is connected with a second control contact (KT-2) of the detection control unit (KT), and the second control contact (KT-2) of the detection control unit (KT) is connected with a first contact (1L1-2T1) of the control contactor;
the self-reset button (RD2), the first contact (1-2) of the alarm relay and the coil (5-6) of the alarm relay (KJ1) are connected in series, the third contact (13NO-14NO) of the control contactor (KM1) is connected in parallel with two ends of the first contact (1-2) of the alarm relay, the alarm indicator lamp (RD1) in the self-reset button indicator lamp is connected in parallel with two ends of the coil (5-6) of the alarm relay (KJ1), the self-reset button (RD2) is connected with the first contact (1L1-2T1) of the control contactor, and the coil (5-6) of the alarm relay (KJ1) is connected with the second contact (4T2-3L2) of the control contactor;
two ends of a second contact (3-4) of the alarm relay are respectively connected with a terminal block of the switch cabinet;
and two ends of a fourth contact (5T3-6L3) of the control contactor (KM1) are respectively connected with an external control loop of the switch cabinet.
2. According to the claims1, the emergency brake-opening delay re-actuating device of the permanent magnet circuit breaker is characterized in that the first resistor (R)1) RX20-25W-5 omega is used.
3. Emergency tripping delay-action device of a permanent-magnet circuit breaker according to claim 1, characterised in that the second resistor (R)2) RX20-25W-5 omega is used.
4. Emergency opening delay re-actuation device of a permanent magnet circuit breaker according to claim 1, characterized in that said detection control unit (KT) employs HHS 5C-a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920939233.6U CN209981144U (en) | 2019-06-20 | 2019-06-20 | Emergency brake-separating delay re-actuating device of permanent magnet circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920939233.6U CN209981144U (en) | 2019-06-20 | 2019-06-20 | Emergency brake-separating delay re-actuating device of permanent magnet circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209981144U true CN209981144U (en) | 2020-01-21 |
Family
ID=69266482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920939233.6U Active CN209981144U (en) | 2019-06-20 | 2019-06-20 | Emergency brake-separating delay re-actuating device of permanent magnet circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209981144U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110148545A (en) * | 2019-06-20 | 2019-08-20 | 吉林永大电气开关有限公司 | Device is moved in the delay of permanent-magnet breaker emergency opening again |
-
2019
- 2019-06-20 CN CN201920939233.6U patent/CN209981144U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110148545A (en) * | 2019-06-20 | 2019-08-20 | 吉林永大电气开关有限公司 | Device is moved in the delay of permanent-magnet breaker emergency opening again |
| CN110148545B (en) * | 2019-06-20 | 2024-04-26 | 吉林永大电气开关有限公司 | Emergency brake-separating time-delay restarting device of permanent magnet circuit breaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107171431B (en) | Uninterrupted power regulating equipment, uninterrupted power regulating system and uninterrupted power regulating control method | |
| CN205070275U (en) | In put cabinet circuit breaker handcart shutting return circuit of closing a floodgate | |
| CN108061838B (en) | Electric leakage test method for ensuring normal electricity consumption of user | |
| CN209981144U (en) | Emergency brake-separating delay re-actuating device of permanent magnet circuit breaker | |
| CN201877368U (en) | Electromagnetic switch of starter | |
| CN202616135U (en) | Opening control loop of spring mechanism of 10kV vacuum circuit breaker | |
| CN203617676U (en) | Burning loss prevention detection and protective device used for circuit breaker closing coil | |
| CN101888084A (en) | Open phase protector of motor | |
| CN202260420U (en) | Protection circuit for opening and closing coils | |
| CN110148545B (en) | Emergency brake-separating time-delay restarting device of permanent magnet circuit breaker | |
| CN203192723U (en) | Under-voltage trip gear for breaker | |
| CN105261530A (en) | Multi-stroke realizing circuit and multi-stroke control method for circuit breakers | |
| CN202231403U (en) | Closing protection device of permanent magnetism operating mechanism | |
| CN202794462U (en) | Intelligent fault diagnosis device for opening and closing coils | |
| CN203607351U (en) | A low-voltage circuit breaker automatic closing apparatus | |
| CN202585275U (en) | Novel secondary control circuit of permanent magnet structure | |
| CN211405921U (en) | Power plant motor control device | |
| CN201444469U (en) | Automatic air switch with temperature protection function | |
| CN201388081Y (en) | Two-set DC bus fault automatic mutual operation device | |
| CN201797302U (en) | Protective device for lifting of heavy crown block | |
| CN201616406U (en) | Miniature leakage alarming and non-operating circuit breaker | |
| CN210245963U (en) | Novel GIS breaker anti-tripping loop | |
| CN103531408B (en) | Low-voltage circuit breaker automatic switching-on device and the method for automatic closing after no-voltage trip thereof | |
| CN217741297U (en) | Low-voltage circuit breaker secondary circuit fault detection device | |
| CN101202432B (en) | Control method of relay control circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |