CN208350865U - A kind of strong current generator - Google Patents

Abstract

The utility model relates to a kind of strong current generators, including fuse FU1-FU4, contactor KM1-KM4, automatic coupling voltage regulator T, controllable current transformer group B, current-controlled switch S1 and voltage shift switch S2；The other end of the other end of the contactor KM1 and the contactor KM2 are connected on the both ends of the automatic coupling voltage regulator T；The controllable current transformer group B includes multiple current transformers, the first input end of multiple current transformers passes through the same current-controlled switch S1 and is connected on the common end of the fuse FU1 and contactor KM1, and the second input terminal of multiple current transformers passes through the same voltage shift switch S2 and is connected on the common end of the fuse FU2 and contactor KM2.A kind of strong current generator of the utility model completes the adjusting of output electric current using automatic coupling voltage regulator and controllable current transformer group jointly, easy to adjust and sensitive.

Description

A kind of strong current generator

Technical field

The utility model relates to current generation devices, and in particular to a kind of strong current generator.

Background technique

Strong current generator is the required equipment that all trades and professions need high current place in electric adjustment, is applied to power generation The units such as factory, transformer and distribution power station, electric appliances plant and scientific research, laboratory belong in short-term or intermittent duty.General high current hair The output current regulation of raw device needs rotation pressure regulator handwheel carefully, slowly, ammeter is watched attentively, until required electric current Until value, it is not convenient and sensitive enough to adjust.

Utility model content

It is easy to adjust and sensitive the technical problem to be solved by the utility model is to provide a kind of strong current generator.

The technical solution that the utility model solves above-mentioned technical problem is as follows: a kind of strong current generator, including fuse FU1-FU4, contactor KM1-KM4, automatic coupling voltage regulator T, controllable current transformer group B, current-controlled switch S1 and voltage shift switch S2；One end of the fuse FU1 is connected on an output end in external ac output voltage source, the fuse FU2's One end is connected in the another output in external ac output voltage source, and the other end of the fuse FU1 is connected to described On one end of contactor KM1, the other end of the fuse FU2 is connected on one end of the contactor KM2, the contactor The other end of the other end of KM1 and the contactor KM2 are connected on the both ends of the automatic coupling voltage regulator T, the fusing Also be sequentially connected in series between the other end of device FU1 and the other end of the fuse FU2 fuse FU3, contactor KM3, Contactor KM4 and fuse FU4；The controllable current transformer group B includes multiple current transformers, and the current transformer is equipped with the first input End, the second input terminal, the first output end and second output terminal, the first input end of multiple current transformers pass through the same institute It states current-controlled switch S1 to be connected on the common end of the fuse FU1 and contactor KM1, the second of multiple current transformers Input terminal passes through the common end that the same voltage shift switch S2 is connected to the fuse FU2 and contactor KM2 On, voltmeter PV is equipped between the current-controlled switch S1 and voltage shift switch S2, the second of each current transformer is defeated Enter and is respectively equipped with a switch K between end and the voltage shift switch S2；First output end of multiple current transformers connects It is connected together and constitutes an output end VTM1 of strong current generator, the second output terminal of multiple current transformers links together Constitute the another output VTM2 of strong current generator.

Based on the above technical solution, the utility model can also do following improvement.

It further, further include current transformer TH, the first ammeter and the second ammeter, the current transformer is connected on On the output end VTM1 of strong current generator, first ammeter and the second ammeter pass through a single-pole double-throw switch (SPDT) connection At the both ends of the current transformer.The range of first ammeter is greater than the range of the second ammeter.

Further, switch SP, the both ends of the contactor KM3 are also in series between the fuse FU3 and contactor KM3 Also it is parallel with switch ST.

Further, further include indicator light HG, indicator light HR, contactor KM5 and contactor KM6, the indicator light HG and refer to Show that one end of lamp HR is both connected on the common end of the contactor KM4 and fuse FU4, the indicator light HG and indicator light HR The other end the public of the fuse FU3 and switch SP is connected to by corresponding contactor KM5 and contactor KM6 respectively On end.

The beneficial effects of the utility model are: the big stream flow-generator of the utility model one kind is using automatic coupling voltage regulator and controllably Current transformer group completes the adjusting of output electric current jointly；When needing to adjust a certain output electric current of output, corresponding number is controlled first Switch K closure, make the output of controllable current transformer group and the similar electric current of required output size of current, then by finely tuning self coupling Pressure regulator exports controllable transformer and need to export the electric current as size of current, easy to adjust and sensitive.

Detailed description of the invention

Fig. 1 is a kind of circuit structure diagram of strong current generator of the utility model.

Specific embodiment

The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical It is novel, it is not intended to limit the scope of the utility model.

As shown in Figure 1, a kind of strong current generator, including fuse FU1-FU4, contactor KM1-KM4, automatic coupling voltage regulator T, controllable current transformer group B, current-controlled switch S1 and voltage shift switch S2；One end of the fuse FU1 is connected to external On one output end in ac output voltage source, one end of the fuse FU2 is connected to the another of external ac output voltage source On one output end, the other end of the fuse FU1 is connected on one end of the contactor KM1, the fuse FU2 The other end be connected on one end of the contactor KM2, the other end of the contactor KM1 and the contactor KM2's is another One end is connected on the both ends of the automatic coupling voltage regulator T, the other end of the fuse FU1 and the fuse FU2's The fuse FU3, contactor KM3, contactor KM4 and fuse FU4 have also been sequentially connected in series between the other end；The controllable change Stream device group B includes multiple current transformers, and the current transformer is equipped with first input end, the second input terminal, the first output end and second Output end, the first input end of multiple current transformers are connected to the fusing by the same current-controlled switch S1 On the common end of device FU1 and contactor KM1, the second input terminal of multiple current transformers passes through the same voltage and changes Position switch S2 is connected on the common end of the fuse FU2 and contactor KM2, the current-controlled switch S1 and voltage shift It is equipped with voltmeter PV between switch S2, divides equally between the second input terminal of each current transformer and the voltage shift switch S2 It She You not a switch K；First output end of multiple current transformers link together constitute one of strong current generator it is defeated Outlet VTM1, the second output terminal of multiple current transformers, which links together, constitutes the another output of strong current generator VTM2。

It in this embodiment, further include current transformer TH, the first ammeter and the second ammeter, the electric current is mutual Sensor is connected on the output end VTM1 of strong current generator, and first ammeter and the second ammeter are double by a hilted broadsword Throw switch is connected to the both ends of the current transformer.It is also in series with switch SP between the fuse FU3 and contactor KM3, The both ends of the contactor KM3 are also parallel with switch ST.It further include indicator light HG, indicator light HR, contactor KM5 and contactor One end of KM6, the indicator light HG and indicator light HR are both connected on the common end of the contactor KM4 and fuse FU4, institute The other end for stating indicator light HG and indicator light HR is connected to described melt by corresponding contactor KM5 and contactor KM6 respectively On the common end of disconnected device FU3 and switch SP.

In this embodiment, the controllable current transformer group B includes 3 current transformers, and respectively current transformer B1-B3 becomes It flows and is respectively equipped with corresponding switch K1-K3 between the second input terminal and the voltage shift switch S2 of device B1-B3；Assuming that each The maximum output current of current transformer is 1000A, then in this particular embodiment, being closed switch K1-K3 all, then exporting Maximum current is 3000A；If we need to export the electric current of 1800A, can be opened with closure switch K1 and switch K2, disconnection K3 is closed, current transformer B1 and current transformer B2 work, current transformer B3 do not work at this time, and the maximum of current transformer B1 and current transformer B2 is defeated It is out 2000A, relatively 1800A, then can readily finely tune automatic coupling voltage regulator, keep current transformer B1 and current transformer B2 total With the electric current of output 1800A.

A kind of big stream flow-generator of the utility model completes output electricity using automatic coupling voltage regulator and controllable current transformer group jointly The adjusting of stream；When needing to adjust a certain output electric current of output, the switch K closure of corresponding number is controlled first, makes controllable unsteady flow The device group output electric current similar with required output size of current, then exports controllable transformer by finely tuning automatic coupling voltage regulator With need to export the electric current as size of current, it is easy to adjust and sensitive.

The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims (4)

1. a kind of strong current generator, it is characterised in that: including fuse FU1-FU4, contactor KM1-KM4, automatic coupling voltage regulator T, controllable current transformer group B, current-controlled switch S1 and voltage shift switch S2；One end of the fuse FU1 is connected to external On one output end in ac output voltage source, one end of the fuse FU2 is connected to the another of external ac output voltage source On one output end, the other end of the fuse FU1 is connected on one end of the contactor KM1, the fuse FU2's The other end is connected on one end of the contactor KM2, and the other end of the contactor KM1 and the contactor KM2's is another End is connected on the both ends of the automatic coupling voltage regulator T, and the other end of the fuse FU1 and the fuse FU2's is another The fuse FU3, contactor KM3, contactor KM4 and fuse FU4 have also been sequentially connected in series between one end；The controllable unsteady flow Device group B includes multiple current transformers, and it is defeated that the current transformer is equipped with first input end, the second input terminal, the first output end and second Outlet, the first input end of multiple current transformers pass through the same current-controlled switch S1 and are connected to the fuse On the common end of FU1 and contactor KM1, the second input terminal of multiple current transformers passes through the same voltage shift and opens It closes S2 to be connected on the common end of the fuse FU2 and contactor KM2, the current-controlled switch S1 and voltage shift switch It is equipped with voltmeter PV between S2, is set respectively between the second input terminal of each current transformer and the voltage shift switch S2 There is a switch K；First output end of multiple current transformers, which links together, constitutes an output end of strong current generator VTM1, the second output terminal of multiple current transformers, which links together, constitutes the another output VTM2 of strong current generator.

2. a kind of strong current generator according to claim 1, it is characterised in that: further include current transformer TH, first Ammeter and the second ammeter, the current transformer are connected on the output end VTM1 of strong current generator, first electricity Flow table and the second ammeter are connected to the both ends of the current transformer by a single-pole double-throw switch (SPDT).

3. a kind of strong current generator according to claim 1 or 2, it is characterised in that: the fuse FU3 and contactor Switch SP is also in series between KM3, the both ends of the contactor KM3 are also parallel with switch ST.

4. a kind of strong current generator according to claim 3, it is characterised in that: further include indicator light HG, indicator light HR, One end of contactor KM5 and contactor KM6, the indicator light HG and indicator light HR are both connected to the contactor KM4 and fusing On the common end of device FU4, the other end of the indicator light HG and indicator light HR pass through corresponding contactor KM5 and contact respectively Device KM6 is connected on the common end of the fuse FU3 and switch SP.