CN202084471U - Maintenance-free novel vacuum breaker with long service life - Google Patents

Abstract

The utility model discloses a maintenance-free novel vacuum breaker with long service life. The maintenance-free novel vacuum breaker with long service life comprises a permanent magnet control mechanism, and is characterized by comprising a no-voltage latching electromagnet, an opening/closing integrated coil, an assistant switch, an energy storage loop comprising a power module and a capacitor set, a closing loop comprising a closing contactor, an opening loop comprising an opening contactor, and an alarming loop, wherein the power module in the energy storage loop is electrically connected with the capacitor set; the capacitor set is electrically connected with the no-voltage latching electromagnet; the no-voltage latching electromagnet is electrically connected with the closing loop, the opening loop and the alarming loop at the same time; the capacitor set is electrically connected with the opening/closing integrated coil through the closing contactor or the opening contactor; and the assistant switch is electrically connected with the closing contactor and the opening contactor. The maintenance-free novel vacuum breaker with long service life has the characteristics of safety and reliability in work, good control performance, convenience in operation and labor conservation.

Description

A kind of high life, non-maintaining novel evacuated circuit breaker

Technical field

The utility model relates to a kind of control system of vacuum circuit-breaker permanent magnet mechanism.

Background technology

The vacuum circuit-breaker that is provided with the permanent magnetism controlling organization has advantages such as operation is frequent, number of operations is many, component of machine is few.It is one of switchgear of emphasis popularization in the future.But there is very big defective in the secondary control system of its operating mechanism, mainly shows:

There are following many defectives, reduced the reliability of circuit breaker complete machine.

1. whole poor anti jamming capability. secondary control is controlled with controller, very little that the starting current of its contact needs, it only is a milliampere level electric current, the energy that needs when starting is very little, when there was certain electromagnetic wave in external environment, the contact of controller started easily, caused the circuit breaker misoperation, unreliable, some environment can't normally use.That is: whole poor anti jamming capability.

2. some element burns out easily. and the automaticity of present electrical equipment control is very high, and major part all needs integrated protection to operate vacuum circuit-breaker.And need to monitor the integrity of on/off switch loop state in the integrated protection, and at this moment, the combined floodgate of vacuum circuit-breaker or sub-gate circuit; the loop that one of them is always arranged is long-term charged; in this case, be easy to be burnt out because of some element in charged for a long time, the present control system.Cause circuit breaker can't normally divide closing operation.

3. lack low-voltage and close trivial function. in the existing control of product system, lack low-voltage and close trivial function, when system voltage is crossed when low, control system still can be operated, but because voltage is undesirable, circuit breaker also can't regular event, burns out electronic component this moment easily.

4. lack the low-voltage warning function. when low-voltage occurring, can not locked loop, in time warning

Summary of the invention

For solving the above-mentioned problems in the prior art, the utility model provides a kind of high life, non-maintaining novel evacuated circuit breaker, and its technical scheme of taking is:

A kind of high life, non-maintaining novel evacuated circuit breaker, comprise the permanent magnetism controlling organization, it is characterized in that, this mechanism comprises the no-voltage dead locking electromagnet, divide-shut brake integral type coil, auxiliary switch, the tank circuit that contains power module and capacitor group, the closing circuit that contains closing contactor, the sub-gate circuit and the alarm circuit that contain the separating brake contactor, power module in the tank circuit is electrically connected the capacitor group, the capacitor group is electrically connected the no-voltage dead locking electromagnet, the no-voltage dead locking electromagnet is electrically connected branch simultaneously, closing circuit and alarm circuit, the capacitor group is electrically connected loop between divide-shut brake integral type coil by closing contactor or separating brake contactor, and auxiliary switch is electrically connected closing contactor and separating brake contactor.

This mechanism adopts special-purpose divide-shut brake contactor, and (not only the life-span is up to 1,000,000 times, and drop-out current is also very big, can reach 200A), replace former controller, greatly improve Electro Magnetic Compatibility, because of the operating voltage of contactor and the starting resistor of contact are 220V, magnitude of voltage is very high, all be not easy to be started easily under what environment, reliability has obtained improving greatly, has solved anti-interference problem.After using contactor instead,,,, also be difficult for being burnt out, thereby improved reliability even under long-term charged situation because of there not being the less electronic devices and components of capacity when the integrity of needs supervision on/off switch loop state.

This control system employing blocking coil is as the capacitance energy storage voltage detecting and realize the decompression warning function; thereby each electric elements in the system have been protected effectively; the required big direct current operative power source of coil is carried out in the permanent magnet mechanism action; provide by charging module and shunt capacitor, and combine the control that realizes permanent magnet mechanism with active trigger.

Therefore the utlity model has safe and reliable, control performance good, characteristics easy to operate.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the A-A cutaway view of Fig. 1.

Embodiment

Below in conjunction with accompanying drawing the utility model is described further:

As shown in Figure 1 and Figure 2, permanent magnetism controlling organization of the present utility model comprises no-voltage dead locking electromagnet 3, divide-shut brake integral type coil 5, auxiliary switch 11, the tank circuit that contains power module 1 and capacitor group 2, the closing circuit that contains closing contactor 4, the sub-gate circuit that contains separating brake contactor 12 and alarm circuit, and its action relationships is as follows:

Charging process: tank circuit get electric after, undertaken charging by 1 pair of capacitor group of power module 2 with stable charging current, charging voltage by 3 pairs of capacitor groups 2 of no-voltage dead locking electromagnet in the charging process monitors, when charging voltage does not reach set point, no-voltage dead locking electromagnet 3 can't be operated locking divide-shut brake loop.Simultaneously, the long closed contact in the no-voltage dead locking electromagnet 3 is connected alarm circuit, carries out the fault prompting, reach set point up to charging voltage, no-voltage dead locking electromagnet 3 coil motion, former normally opened contact closure, connect the divide-shut brake loop, charging process finishes. wait for next step operational order.

Making process: after charging finishes, when carrying out closing operation, at first give closing contactor 4 coil electricities in the closing circuit, contactor main contacts closure, connect capacitor group 2 and 5 loops of divide-shut brake integral type coil, divide-shut brake integral type coil 5 electric generation and permanent magnet magnetic field in the same way, moving armature 6 is moved downward by adhesive, driving main shaft 8 by linkage 7 rotates, main shaft 8 moves upward by the moving conductive rod that connecting plate mechanism 9 drives vacuum interrupter again, the permanent magnet 10 that sealing is installed in the permanent magnet mechanism is with moving armature 6 adhesives and remain on closing position, in making process, opens with auxiliary switch 11 contacts of main shaft 8 interlocks, closing circuit is cut off, closing contactor 4 main contactss are opened simultaneously, cut off capacitor group 2 and 5 loops of divide-shut brake integral type coil, finish closing operation.

Separating brake process: give separating brake contactor coil 12 energisings in the sub-gate circuit, contactor main contacts closure, connect capacitor group 2 and 5 loops of divide-shut brake integral type coil, divide-shut brake integral type coil 5 gets electric generation and permanent magnet opposing magnetic field, under tripping spring 13 drives, oppositely driving main shaft 8 by connecting plate mechanism 9 rotates, main shaft 8 moves upward moving armature 6 by linkage again, finally move to the oil bumper compacted condition, in the separating brake process, open sub-gate circuit with auxiliary switch 11 contacts of main shaft 8 interlocks and be cut off, separating brake contactor master opens 12 contacts simultaneously, cut off capacitor group 2 and 5 loops of divide-shut brake integral type coil, finish sub-switching operation.

Claims (1)

1. high life, non-maintaining novel evacuated circuit breaker, comprise the permanent magnetism controlling organization, it is characterized in that, this permanent magnetism controlling organization comprises the no-voltage dead locking electromagnet, divide-shut brake integral type coil, auxiliary switch, the tank circuit that contains power module and capacitor group, the closing circuit that contains closing contactor, the sub-gate circuit and the alarm circuit that contain the separating brake contactor, power module in the tank circuit is electrically connected the capacitor group, the capacitor group is electrically connected the no-voltage dead locking electromagnet, the no-voltage dead locking electromagnet is electrically connected branch simultaneously, closing circuit and alarm circuit, the capacitor group is electrically connected loop between divide-shut brake integral type coil by closing contactor or separating brake contactor, and auxiliary switch is electrically connected closing contactor and separating brake contactor.

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