CN217607527U - Discharge device and system - Google Patents

Abstract

The utility model relates to a discharge device and system, the device includes the power, the control assembly, voltage detection subassembly, discharge subassembly, light-emitting component and display module, voltage detection subassembly is connected with every condenser in the reactive compensation cabinet respectively, discharge detection subassembly is connected with the first control switch of every condenser respectively, discharge subassembly includes a plurality of discharge modules, every condenser is parallelly connected with the discharge module that this condenser corresponds, voltage detection subassembly, be used for detecting the capacitance voltage of every condenser, and send the capacitance voltage to display module and show, discharge detection subassembly, be used for detecting the discharge voltage of every condenser, and send discharge voltage to the control assembly, so that the control assembly sends the light that discharge voltage corresponds according to discharge voltage, the control assembly, be used for in the capacitor discharge's in-process, adjust the resistance value of discharge module, in order to maintain the discharge current of condenser in the predetermined current range.

Description

Discharge device and system

Technical Field

The present disclosure relates to the field of electrical control, and in particular, to a discharge device and system.

Background

In low voltage distribution systems, there are a large number of nonlinear loads for which the system is required to provide reactive power. In order to avoid the hazards of increased line loss, reduced power quality, reduced equipment utilization rate and the like caused by the reduction of the power factor, a reactive compensation cabinet (a plurality of capacitors can be configured in the reactive compensation cabinet according to the engineering condition) is usually arranged in the system so as to automatically switch the capacitors according to the power factor to be achieved by the system.

When the reactive power compensation cabinet needs to be powered off due to accidents or maintenance, each capacitor in the reactive power compensation cabinet needs to be discharged, so that the safety risk is reduced. In the related art, each capacitor is mainly discharged by using a self-discharge resistor. However, the slow discharge rate of the discharge using the self-discharge resistor may make it difficult to reduce the residual voltage of the capacitor to a predetermined value or less within a predetermined time, and the details of the discharge may not be known during the discharge of the capacitor, which may result in a high safety risk.

SUMMERY OF THE UTILITY MODEL

To solve the problems in the related art, the present disclosure provides a discharge device and system.

In order to achieve the above object, according to a first aspect of embodiments of the present disclosure, there is provided a discharge device including a power supply, a control component, a voltage detection component, a discharge component, a light emitting component, and a display component; the control assembly is respectively connected with the power supply, the discharge detection assembly, the discharge assembly and the light-emitting assembly, and the display assembly is respectively connected with the voltage detection assembly and the control assembly;

the voltage detection assembly is respectively connected with each capacitor in the reactive compensation cabinet; the discharge detection assembly is respectively connected with a first control switch of each capacitor, and the first control switch is used for indicating the switching state of the capacitor; the discharging assembly comprises a plurality of discharging modules, each capacitor corresponds to one discharging module, and each capacitor is connected with the discharging module corresponding to the capacitor in parallel;

the voltage detection component is used for detecting the capacitance voltage of each capacitor and sending the capacitance voltage to the display component for displaying;

the discharge detection assembly is used for detecting the discharge voltage of each capacitor and sending the discharge voltage to the control assembly, so that the control assembly can control the light emitting assembly to emit light corresponding to the discharge voltage according to the discharge voltage;

the control component is used for adjusting the resistance value of the discharging module in the discharging process of the capacitor so as to maintain the discharging current of the capacitor within a preset current range.

Optionally, the discharging module includes a preset number of second control switches and a resistor corresponding to each second control switch, and each second control switch is connected to the resistor corresponding to the control switch; the control end of each second control switch is respectively connected with the control component;

and the control assembly is used for sequentially controlling the second control switches of the preset number to be closed according to a preset time sequence.

Optionally, the resistor is installed on a top of the reactive compensation cabinet, and a resistance parameter of the resistor is determined according to a capacitance parameter of the capacitor.

Optionally, the device further includes a temperature detection component and a temperature sensor, the temperature detection component is respectively connected to the control component, the display component and the temperature sensor, and the temperature sensor is respectively connected to each capacitor;

the temperature sensor is used for detecting the temperature value of each capacitor and sending the temperature value to the display component through the temperature detection component for displaying;

the temperature detection assembly is used for sending an abnormal capacitor identifier and an abnormal temperature value of an abnormal capacitor to the control assembly under the condition that the capacitor with the temperature value larger than a preset temperature threshold value exists; the abnormal capacitor is a capacitor with the temperature value larger than the preset temperature threshold value, and the abnormal temperature value is the temperature value of the abnormal capacitor.

Optionally, the apparatus further comprises a communication component connected to the control component;

the control assembly is further used for sending temperature alarm information to a user through the communication assembly so as to prompt the user that the temperature of the capacitor is abnormal, and the temperature alarm information comprises the abnormal capacitor identifier and the abnormal temperature value.

Optionally, the communication component comprises an ethernet communication interface and a serial communication interface.

Optionally, the light emitting assembly comprises a plurality of discharge indicator lamps, one corresponding to each capacitor;

the control component is further used for controlling a discharge indicator lamp corresponding to each capacitor to emit light of a first preset color under the condition that the discharge voltage of the capacitor is greater than or equal to a preset voltage threshold;

the control component is further configured to, for each capacitor, control a discharge indicator lamp corresponding to the capacitor to be turned off when the discharge voltage of the capacitor is smaller than the preset voltage threshold.

Optionally, the light emitting assembly further comprises a plurality of temperature alarm indicator lamps, each temperature alarm indicator lamp corresponding to one of the capacitors;

and the control component is also used for controlling the alarm indicator lamp corresponding to the abnormal capacitor to emit light of a second preset color after receiving the abnormal capacitor identifier and the abnormal temperature value.

Optionally, the light emitting assembly further comprises a status indicator light;

the control component is also used for detecting whether the control component, the voltage detection component, the discharge component, the display component and the temperature detection component have faults or not;

the control assembly is still used for the control assembly the voltage detection subassembly discharge the subassembly display module with under the condition that any one of temperature detection subassembly had the trouble, control the status indicator lamp sends the light of the third colour of predetermineeing, and the control assembly the voltage detection subassembly discharge the subassembly display module with under the condition that temperature detection subassembly does not all have the trouble, control the status indicator lamp sends the light of the fourth colour of predetermineeing.

According to a second aspect of the embodiments of the present disclosure, there is provided a discharge system, which includes a reactive compensation cabinet and any one of the discharge devices provided by the first aspect of the embodiments of the present disclosure.

Through the technical scheme, discharge device in this disclosure includes the power, the control module, the voltage detection subassembly, the detection subassembly that discharges, the subassembly that discharges, light-emitting component and display module, the subassembly that discharges includes a plurality of modules that discharge, every condenser is parallelly connected with the module that discharges that this condenser corresponds, the voltage detection subassembly, a capacitance voltage for detecting every condenser, and send capacitance voltage to the display module and show, the detection subassembly that discharges, a discharge voltage for detecting every condenser, and send discharge voltage to the control module, so that the control module is according to discharge voltage, control light-emitting component sends the light that discharge voltage corresponds, the control module, a discharge in-process for at the condenser, the resistance value of adjustment module that discharges, in order to keep the discharge current of condenser in predetermineeing the current range. This openly can be through the resistance value of adjustment discharge module, maintain the discharge current of condenser in predetermineeing the electric current within range to improve discharge rate, thereby realize falling to below the specified value with the residual voltage of condenser in the specified time, can show capacitance voltage in real time through the display module simultaneously, and control light emitting component sends the light that discharge voltage corresponds, what make the user can be clear learns the concrete condition that the condenser discharged, has reduced the safety risk.

Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure, but do not constitute a limitation of the disclosure. In the drawings:

FIG. 1 is a schematic diagram of a discharge device shown in accordance with an exemplary embodiment;

FIG. 2 is a schematic diagram illustrating a discharge module in accordance with an exemplary embodiment;

FIG. 3 is a schematic diagram illustrating another discharge device in accordance with an exemplary embodiment;

FIG. 4 is a schematic diagram of yet another discharge device shown in accordance with an exemplary embodiment;

FIG. 5 is a block diagram illustrating a discharge system in accordance with an exemplary embodiment.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

FIG. 1 is a schematic diagram of a discharge device shown in accordance with an exemplary embodiment. As shown in fig. 1, the apparatus 1 includes a power supply 10, a control unit 11, a voltage detection unit 12, a discharge detection unit 13, a discharge unit 14, a light emitting unit 15, and a display unit 16. The control module 11 is connected to the power supply 10, the discharge detection module 13, the discharge module 14, and the light emitting module 15, respectively, and the display module 16 is connected to the voltage detection module 12 and the control module 11, respectively.

The voltage detection component 12 is respectively connected with each capacitor 20 in the reactive compensation cabinet 2, the discharge detection component 13 is respectively connected with a first control switch 21 of each capacitor 20, and the first control switch 21 is used for indicating the switching state of the capacitor 20. The discharging assembly 14 includes a plurality of discharging modules 141, one discharging module 141 corresponding to each capacitor 20, and each capacitor 20 is connected in parallel with the discharging module 141 corresponding to the capacitor 20.

And the voltage detection component 12 is used for detecting the capacitance voltage of each capacitor 20 and sending the capacitance voltage to the display component 16 for display.

And the discharge detection component 13 is used for detecting the discharge voltage of each capacitor 20 and sending the discharge voltage to the control component 11, so that the control component 11 controls the light emitting component 15 to emit light corresponding to the discharge voltage according to the discharge voltage.

The control component 11 is configured to adjust a resistance value of the discharging module 141 during discharging of the capacitor 20, so as to maintain a discharging current of the capacitor 20 within a preset current range.

For example, when the reactive compensation cabinet 2 needs to be powered off due to an accident or maintenance, each capacitor 20 in the reactive compensation cabinet 2 needs to be discharged. The capacitor 20 needs to meet the following specification requirements during discharge: (1) The remaining voltage of the capacitor 20 is reduced to a prescribed value (which may be 50V, for example) and below for a prescribed time (which may be 3min, for example) after the capacitor 20 is powered off, (2) when the capacitor 20 is switched in again, the remaining voltage at the terminals of the capacitor 20 should not exceed a preset voltage threshold (which may be 0.1 times the rated voltage of the capacitor 20). However, in the process of discharging the capacitor 20, the discharge voltage of the capacitor 20 decreases with the passage of the discharge time, and the resistance value of the discharge circuit of the capacitor 20 is constant, so that the discharge current of the capacitor 20 also decreases proportionally. The discharge electric quantity Q = U × I (U is a discharge voltage, I is a discharge current) of the capacitor 20, and both the discharge voltage and the discharge current decrease, which slows down the discharge rate of the capacitor 20, and prevents the remaining voltage of the capacitor 20 from decreasing to or below the predetermined value within a predetermined time after the power failure of the capacitor 20, thereby increasing the safety risk of the maintenance personnel.

In order to ensure the safety of the service personnel, the discharging apparatus 1 composed of the power supply 10, the control component 11, the voltage detecting component 12, the discharging detecting component 13, the discharging component 14, the light emitting component 15 and the display component 16 may be constructed to maintain the discharging rate of the capacitor 20 within a certain range to meet the above specification requirements. Specifically, the power supply 10 provides the discharge device 1 with operating power to ensure that the discharge device 1 operates normally. The voltage detection assembly 12 may detect the capacitance voltage of each capacitor 20 and transmit the capacitance voltage to the display assembly 16 for real-time display. Wherein the voltage detection component 12 may be a voltage measurement circuit and the display component 16 may be a liquid crystal display. The maintainer can look over in real time, read condenser 20's electric capacity voltage through display module 16, can be clear accurate learn the electric capacity concrete condition that discharges to when condenser 20's residual voltage falls to below specified value and the specified value, the maintenance of opening the door again, avoid personnel to electrocute the risk and reduce personnel and take the wire to the operation of discharging to ground, ensured maintainer's safety. In addition, when capacitor 20 is switched in again, the service personnel can determine whether the residual voltage at the terminals of capacitor 20 exceeds a preset voltage threshold based on the capacitor voltage displayed on display assembly 16.

The first control switch 21 of each capacitor 20 can be connected to the discharge detection component 13, and the first control switch 21 of each capacitor 20 is used to indicate the switching state of the capacitor 20, that is, the first control switch 21 is actually used to indicate whether the capacitor 20 is switched to be used to the discharge detection component 13 and the control component 11, for example, when the first control switch 21 is in the closed state, the switching state of the capacitor 20 is in the on state (that is, the capacitor 20 is used for performing reactive compensation), at this time, the capacitor 20 is not discharged, and when the first control switch 21 is in the open state, the switching state of the capacitor 20 is in the off state (that is, the capacitor 20 is not used for performing reactive compensation), at this time, the capacitor 20 is discharged. The first control switch 21 may be a capacitor control on-off contactor or a compound switch normally closed contact, the discharge detection component 13 may determine whether the capacitor 20 is discharged according to the switching state of the first control switch 21 of each capacitor 20, and then detect the discharge voltage of each capacitor 20 and send the discharge voltage to the control component 11 when it is determined that the capacitor 20 is discharged, so that the control component 11 controls the light emitting component 15 to emit light corresponding to the discharge voltage according to the discharge voltage of each capacitor 20.

In addition, the control component 11 can maintain the discharging current of the capacitor 20 within the preset current range by gradually reducing the resistance value of the discharging module 141 during the discharging process of the capacitor 20 to increase the discharging rate of the capacitor 20, so as to ensure that the residual voltage of the capacitor 20 is reduced to the specified value or below within the specified time after the power failure of the capacitor 20. The Control component 11 may be an MCU (Micro Control Unit, chinese) system circuit.

In order to improve the reliability of the discharge device 1, a temperature detection, a temperature display, and an abnormality warning function may be further added to each capacitor 20. Specifically, the device 1 may further include a temperature detection component 17 and a temperature sensor 18, the temperature detection component 17 is respectively connected to the control component 11, the display component 16 and the temperature sensor 18, and the temperature sensor 18 is respectively connected to each capacitor 20. The temperature sensor 18 can detect the temperature value of each capacitor 20 and send the temperature value of each capacitor 20 to the display component 16 through the temperature detection component 17 for displaying. And, the temperature detecting component 17 may send the abnormal capacitor identification and the abnormal temperature value of the abnormal capacitor to the control component 11 in the case where there is a capacitor whose temperature value is greater than the preset temperature threshold value. The abnormal capacitor is the capacitor 20 with a temperature value greater than a preset temperature threshold value, and the abnormal temperature value is the temperature value of the abnormal capacitor. Further, after receiving the abnormal capacitor identifier and the abnormal temperature value, the control component 11 may determine that the temperature of the capacitor 20 corresponding to the abnormal capacitor identifier is abnormal, and send a temperature alarm message to the user to prompt the user of the capacitor with the abnormal temperature.

In summary, the discharge device in the disclosure includes a power supply, a control component, a voltage detection component, a discharge component, a light emitting component, and a display component, where the discharge component includes a plurality of discharge modules, each capacitor is connected in parallel with a discharge module corresponding to the capacitor, the voltage detection component is configured to detect a capacitance voltage of each capacitor and send the capacitance voltage to the display component for displaying, the discharge detection component is configured to detect a discharge voltage of each capacitor and send the discharge voltage to the control component, so that the control component controls the light emitting component to emit light corresponding to the discharge voltage according to the discharge voltage, and the control component is configured to adjust a resistance value of the discharge module in a discharge process of the capacitor to maintain a discharge current of the capacitor within a preset current range. This is disclosed can be through the resistance value of adjustment discharge module, maintain the discharge current of condenser in predetermineeing the current range to improve discharge rate, thereby realize falling the residual voltage of condenser below the specified value in the appointed time, can show capacitance voltage in real time through the display module simultaneously, and control light emitting component sends the light that discharge voltage corresponds, the concrete condition that learns the condenser discharge that makes the user can understand has reduced the safety risk.

Alternatively, the discharging module 141 may include a preset number of second control switches 1411 and a resistor 1412 corresponding to each second control switch 1411, and each second control switch 1411 is connected with the resistor 1412 corresponding to the control switch. The control terminal of each second control switch 1411 is connected to the control component 11. Wherein the second control switch 1411 may be a passive contact.

The control component 11 is configured to sequentially control a preset number of second control switches 1411 to be turned on according to a preset time sequence.

To explain that the preset number is 3 and it is required to reduce the residual voltage of the capacitor 20 to 50V within 3min after the capacitor 20 is powered off, as shown in fig. 2, for each capacitor 20, in the 1 st minute of discharging the capacitor 20 (which can be understood as the initial stage of discharging the capacitor 20), the control component 11 may control any one second control switch 1411 of the 3 second control switches 1411 corresponding to the capacitor 20 to be closed. Then, in the 2 nd minute of the discharging of the capacitor 20 (which can be understood as the middle stage of the discharging of the capacitor 20), the control component 11 may control any one of the 2 non-closed second control switches 1411 corresponding to the capacitor 20 to be closed. Then, at the 3 rd minute when the capacitor 20 is discharged (which can be understood as the end of the discharge of the capacitor 20), the control component 11 can control the closing of the corresponding last non-closed second control switch 1411 of the capacitor 20. As can be seen from the resistor parallel principle, in the above manner, in fact, during the discharging process, the resistors 1412 are connected in parallel step by step, so that the resistance value of the entire discharging circuit of the capacitor 20 gradually decreases, so as to maintain the discharging current of the capacitor 20 within the preset current range, thereby increasing the discharging rate of the capacitor 20.

Further, the resistor 1412 may be installed on the top of the reactive compensation cabinet 2 to facilitate heat dissipation of the resistor 1412, and the resistance parameter of the resistor may be determined according to the capacitance parameter of the capacitor.

FIG. 3 is a schematic diagram illustrating another discharge device in accordance with an exemplary embodiment. As shown in fig. 3, the device 1 further comprises a communication component 19 connected to the control component 11.

The control component 11 is further configured to send temperature alarm information to the user through the communication component 19 to prompt the user that the temperature of the capacitor is abnormal, and the temperature alarm information includes an abnormal capacitor identifier and an abnormal temperature value.

In one scenario, communications component 19 may include an ethernet communications interface 191 and a serial communications interface 192. For example, the ethernet communication interface 191 may employ an RJ45 port (8-core network card interface) to access the control module 11, and the RJ45 port may be connected to a switch through a network cable, and the switch may be connected to the integrated control panel through the network cable. The serial communication interface 192 may access the control module 11 using a 485/232 communication serial port. It should be noted that the ethernet communication interface 191 and the serial communication interface 192 may select and use appropriate communication interfaces and protocols according to actual conditions of the project, which is not specified in detail in this disclosure.

After receiving the abnormal capacitor identifier and the abnormal temperature value, the control component 11 may determine that the temperature of the capacitor 20 corresponding to the abnormal capacitor identifier is abnormal, and send a temperature alarm message to a user through the ethernet communication interface 191 and the serial communication interface 192. For example, the control component 11 can send the temperature alarm information to the integrated control screen through the ethernet communication interface 191, timely remind the maintainer, and enable the maintainer to quickly and accurately identify the fault point according to the abnormal capacitor identifier and the abnormal temperature value included by the temperature alarm information.

Fig. 4 is a schematic diagram illustrating yet another discharge device in accordance with an exemplary embodiment. As shown in fig. 4, the light emitting assembly 15 includes a plurality of discharge indicator lamps 151, each discharge indicator lamp 151 corresponding to one capacitor 20;

the control component 11 is further configured to, for each capacitor 20, control the discharge indicator lamp 151 corresponding to the capacitor 20 to emit light of a first preset color when the discharge voltage of the capacitor 20 is greater than or equal to a preset voltage threshold.

The control component 11 is further configured to, for each capacitor 20, control the discharge indicator lamp 151 corresponding to the capacitor 20 to be turned off when the discharge voltage of the capacitor 20 is smaller than a preset voltage threshold.

For example, the control component 11 may control, for each capacitor 20, the discharge indicator lamp 151 corresponding to the capacitor 20 to emit light of a first preset color (for example, red) when the discharge voltage of the capacitor is greater than or equal to a preset voltage threshold (indicating that the capacitor 20 is discharging at this time), and control the discharge indicator lamp 151 corresponding to the capacitor 20 to be turned off when the discharge voltage of the capacitor is less than the preset voltage threshold (indicating that the capacitor 20 is discharging at this time).

The discharge indicator 151 may be an LED indicator, and the LED indicator has a small volume. Compare in using resistance-type discharge indicator, can reduce the panel beating trompil, save because of resistance-type discharge indicator return circuit lead to in the cabinet, a large amount of wiring costs between the cabinet, make the simple that the wiring becomes to reduce the artifical influence of taking time and because of the bad wire current-carrying capacity of heat dissipation of wiring, and then reduce the trouble and look for the line degree of difficulty. And moreover, the LED indicating lamp has no starting voltage value, so that the problem that when the loop voltage is lower than 70% of the rated voltage of the LED indicating lamp, the brightness of the indicating lamp is very dark, even the indicating lamp is extinguished, so that the discharge condition of the capacitor cannot be known by personnel can be avoided, and the safety of maintainers is further ensured.

In addition, the light assembly 15 may further include a plurality of temperature warning indicator lights 152, one for each capacitor 20 of each temperature warning indicator light 152. Control assembly 11 can also be after receiving unusual condenser sign and anomalous temperature value, and the warning light 152 that the control unusual condenser corresponds sends the light that the colour was predetermine to the second, reminds maintainer in time, makes the maintainer can be fast accurately discerned the unusual condenser of temperature.

Further, the light emitting assembly 15 may further include a status indicator lamp 153.

The control component 11 is also used for detecting whether the control component 11, the voltage detection component 12, the discharge detection component 13, the discharge component 14, the display component 16 and the temperature detection component 17 have faults or not.

The control component 11 is further configured to control the status indicator lamp 153 to emit light of a third preset color when any one of the control component 11, the voltage detection component 12, the discharge detection component 13, the discharge component 14, the display component 16 and the temperature detection component 17 has a fault, and to control the status indicator lamp to emit light of a fourth preset color when none of the control component 11, the voltage detection component 12, the discharge detection component 13, the discharge component 14, the display component 16 and the temperature detection component 17 has a fault.

Specifically, the control component 11 may further detect whether each component of the discharge device 1 has a fault, and control the status indicator lamp 153 to emit light of a third preset color to prompt the maintenance staff that the component has the fault when the component has the fault. Otherwise, the status indicator lamp 153 is controlled to emit light of a fourth preset color to prompt the maintenance personnel that all components work normally.

In summary, the discharge device in the present disclosure includes a power supply, a control component, a voltage detection component, a discharge component, a light emitting component, and a display component, where the discharge component includes a plurality of discharge modules, each capacitor is connected in parallel with the discharge module corresponding to the capacitor, the voltage detection component is configured to detect a capacitance voltage of each capacitor, and send the capacitance voltage to the display component for display, the discharge detection component is configured to detect a discharge voltage of each capacitor, and send the discharge voltage to the control component, so that the control component controls the light emitting component to send a light corresponding to the discharge voltage according to the discharge voltage, and the control component is configured to adjust a resistance value of the discharge module in a discharge process of the capacitor, so as to maintain the discharge current of the capacitor within a preset current range. This openly can be through the resistance value of adjustment discharge module, maintain the discharge current of condenser in predetermineeing the electric current within range to improve discharge rate, thereby realize falling to below the specified value with the residual voltage of condenser in the specified time, can show capacitance voltage in real time through the display module simultaneously, and control light emitting component sends the light that discharge voltage corresponds, what make the user can be clear learns the concrete condition that the condenser discharged, has reduced the safety risk.

FIG. 5 is a block diagram illustrating a discharge system in accordance with an exemplary embodiment. As shown in fig. 5, the discharge system 3 includes a reactive compensation cabinet 2 and any one of the discharge devices 1 shown in fig. 1 to 4.

With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the apparatus, and will not be elaborated here.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the above embodiments, the various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations will not be further described in the present disclosure.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure as long as it does not depart from the gist of the present disclosure.

Claims (10)

1. A discharge device is characterized by comprising a power supply, a control component, a voltage detection component, a discharge component, a light-emitting component and a display component; the control assembly is respectively connected with the power supply, the discharge detection assembly, the discharge assembly and the light-emitting assembly, and the display assembly is respectively connected with the voltage detection assembly and the control assembly;

the voltage detection assembly is respectively connected with each capacitor in the reactive compensation cabinet; the discharge detection assembly is respectively connected with a first control switch of each capacitor, and the first control switch is used for indicating the switching state of the capacitor; the discharging assembly comprises a plurality of discharging modules, each capacitor corresponds to one discharging module, and each capacitor is connected with the discharging module corresponding to the capacitor in parallel;

the voltage detection component is used for detecting the capacitance voltage of each capacitor and sending the capacitance voltage to the display component for displaying;

the discharge detection component is used for detecting the discharge voltage of each capacitor and sending the discharge voltage to the control component, so that the control component can control the light-emitting component to emit light corresponding to the discharge voltage according to the discharge voltage;

the control component is used for adjusting the resistance value of the discharging module in the discharging process of the capacitor so as to maintain the discharging current of the capacitor within a preset current range.

2. The apparatus of claim 1, wherein the discharging module comprises a preset number of second control switches and a resistor corresponding to each second control switch, and each second control switch is connected to the resistor corresponding to the control switch; the control end of each second control switch is respectively connected with the control component;

and the control assembly is used for sequentially controlling the second control switches of the preset number to be closed according to a preset time sequence.

3. The apparatus according to claim 2, wherein the resistor is installed on the top of the reactive compensation cabinet, and the resistance parameter of the resistor is determined according to the capacitance parameter of the capacitor.

4. The device of claim 1, further comprising a temperature detection assembly and a temperature sensor, wherein the temperature detection assembly is respectively connected with the control assembly, the display assembly and the temperature sensor, and the temperature sensor is respectively connected with each capacitor;

the temperature sensor is used for detecting the temperature value of each capacitor and sending the temperature value to the display component through the temperature detection component for displaying;

the temperature detection assembly is used for sending an abnormal capacitor identifier and an abnormal temperature value of an abnormal capacitor to the control assembly under the condition that the capacitor with the temperature value larger than a preset temperature threshold exists; the abnormal capacitor is a capacitor with the temperature value larger than the preset temperature threshold value, and the abnormal temperature value is the temperature value of the abnormal capacitor.

5. The apparatus of claim 4, further comprising a communication component connected to the control component;

the control assembly is further used for sending temperature alarm information to a user through the communication assembly so as to prompt the user that the temperature of the capacitor is abnormal, and the temperature alarm information comprises the abnormal capacitor identification and the abnormal temperature value.

6. The apparatus of claim 5, wherein the communication component comprises an Ethernet communication interface and a serial communication interface.

7. The apparatus of claim 4, wherein said light assembly comprises a plurality of discharge indicator lamps, one for each of said capacitors;

the control component is further used for controlling a discharge indicator lamp corresponding to each capacitor to emit light of a first preset color under the condition that the discharge voltage of the capacitor is greater than or equal to a preset voltage threshold;

the control component is further configured to, for each capacitor, control a discharge indicator lamp corresponding to the capacitor to be turned off when the discharge voltage of the capacitor is smaller than the preset voltage threshold.

8. The apparatus of claim 7, wherein said light assembly further comprises a plurality of temperature warning indicators, one for each of said capacitors;

and the control component is also used for controlling the alarm indicator lamp corresponding to the abnormal capacitor to emit light with a second preset color after receiving the abnormal capacitor identifier and the abnormal temperature value.

9. The apparatus of claim 7, wherein the light assembly further comprises a status indicator light;

the control component is also used for detecting whether the control component, the voltage detection component, the discharge component, the display component and the temperature detection component have faults or not;

the control assembly is still used for the control assembly the voltage detection subassembly discharge the subassembly display module with under the condition that any one of temperature detection subassembly had the trouble, control the status indicator lamp sends the light of the third colour of predetermineeing, and the control assembly the voltage detection subassembly discharge the subassembly display module with under the condition that temperature detection subassembly does not all have the trouble, control the status indicator lamp sends the light of the fourth colour of predetermineeing.

10. A discharge system, characterized in that the system comprises a reactive compensation cabinet and a discharge device according to any of claims 1-9.

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