Integrated communication power supply surge current protection device

Abstract

The present invention belongs to the field of impulse current protection devices, and relates to an integrated communication power supply impulse current protection device. It is characterized in that: it comprises a DC feed module (1), a first circuit breaker module (100) electrically connected to the DC feed module (1); a communication system circuit breaker module (500) is connected in parallel to the communication system bus module (400); a third circuit breaker module (600) is also connected in parallel to the communication system bus module (400); the other end of the third circuit breaker module (600) is electrically connected to a capacitor module (700). The beneficial effect of the present invention is that: when a load with a large starting current appears, the capacitor module can instantly provide a short-term large current, so that the rectifier module is protected, thereby allowing the communication device to work normally, greatly increasing safety.

Description

Technical Field

[0001] The invention belongs to the field of impulse current protection devices and relates to an integrated communication power supply impulse current protection device. Background Art

[0002] -48V communication system is widely used in the State Grid system substation, communication building and other places. Since 2013, the State Grid system station has begun to use integrated power supply equipment. Most of the substations with independent battery communication devices -48V communication power supplies are independent systems, and correspondingly they will be equipped with 24 2V batteries or 4 12V batteries. These batteries will provide backup power and impact current load to the communication power supply after the AC power is lost. -48V communication system mainly provides power for optical transmission equipment and PCM equipment in the substation to ensure the normal operation of the entire communication system in the station.

[0003] Due to the country's requirements for environmental protection and the promotion of integrated systems, -48V communication systems have mostly eliminated independent batteries, so the -48V communication system input has changed from AC380V to DC220V or DC110V input, and the DC battery provides backup power for it.

[0004] In the prior art integrated power supply communication device, the large impact current will cause the communication conversion module to protect and fail to provide instantaneous large current. Because the communication part is not equipped with an independent battery and shares a set of batteries with the DC, the communication system has a backup power supply, but it cannot meet the impact current load requirements. Summary of the invention

[0005] In order to solve the problems that the integrated communication power supply device in the prior art is not equipped with an independent battery, shares a group of batteries with the direct current, cannot meet the requirements of the impact current load, and has low safety of the device, the present invention proposes an integrated communication power supply impact current protection device, which is characterized by: comprising a direct current feed-out module, a first circuit breaker module electrically connected to the direct current feed-out module; a rectifier module electrically connected to the other end of the first circuit breaker module; a second circuit breaker module electrically connected to the other end of the rectifier module; a communication system bus module electrically connected to the communication system circuit breaker module in parallel; a third circuit breaker module also connected in parallel to the communication system bus module; and a capacitor module electrically connected to the other end of the third circuit breaker module.

[0006] According to the above-mentioned integrated communication power supply surge current protection device, it is characterized in that: the DC feeder module includes: a DC feeder cabinet feeder DC;

[0007] The first circuit breaker module includes: an eleventh circuit breaker QF11, a twelfth circuit breaker QF12, and a thirteenth circuit breaker QF13;

[0008] The rectifier module includes: a first rectifier U1, a second rectifier U2, and a third rectifier U3;

[0009] The second circuit breaker module includes: a second circuit breaker QF2;

[0010] The third circuit breaker module includes: a third circuit breaker QF3;

[0011] The communication system circuit breaker module includes: the twenty-first circuit breaker 2QF1 to the thirty-fifth circuit breaker 2QF15, the first display light 2H1 to the fifteenth display light 2H15;

[0012] The capacitor module includes a first capacitor C1 to a fourth capacitor C4;

[0013] One end of the DC feeder cabinet feeder line DC is electrically connected to one end of the eleventh circuit breaker QF11, one end of the twelfth circuit breaker QF12, and one end of the thirteenth circuit breaker QF13 respectively;

[0014] The other end of the eleventh circuit breaker QF11 is electrically connected to the first rectifier U1, the other end of the twelfth circuit breaker QF12 is electrically connected to the second rectifier U2, and the other end of the thirteenth circuit breaker QF13 is electrically connected to the third rectifier U3;

[0015] The other end of the first rectifier U1, the other end of the second rectifier U2, and the other end of the third rectifier U3 are electrically connected to one end of the second circuit breaker QF2 respectively;

[0016] The other end of the second circuit breaker QF2 is electrically connected to the communication system bus module;

[0017] The first display light 2H1 to the fifteenth display light 2H15 are respectively connected in parallel to the communication system bus module, and each of the twenty-first circuit breakers 2QF1 to the thirty-fifth circuit breakers 2QF15 are respectively connected in series with the first display light 2H1 to the fifteenth display light 2H15.

[0018] According to the above-mentioned integrated communication power supply surge current protection device, it is characterized in that the DC feeder out of the cabinet is a DC 220V.

[0019] According to the above-mentioned integrated communication power supply surge current protection device, it is characterized in that the models of the eleventh circuit breaker QF11, the twelfth circuit breaker QF12 and the thirteenth circuit breaker QF13 are all GM32M2328R16A.

[0020] According to the above-mentioned integrated communication power supply surge current protection device, it is characterized in that: the models of the first rectifier U1, the second rectifier U2, and the third rectifier U3 are all HD4830-3.

[0021] According to the above-mentioned integrated communication power supply surge current protection device, it is characterized in that: the model of the second circuit breaker QF2 is: GM32M2338R100AQF2.

[0022] According to the above-mentioned integrated communication power supply surge current protection device, it is characterized in that: the model of the third circuit breaker QF3 is GM5-250G / 2 / G-250A.

[0023] According to the above-mentioned integrated communication power supply surge current protection device, it is characterized in that: the models of the first capacitor C1 to the fourth capacitor C4 are all: 63V10000ΜF.

[0024] According to the above-mentioned integrated communication power supply surge current protection device, it is characterized in that: the model of the twenty-first circuit breaker 2QF1 to the thirty-fifth circuit breaker 2QF15 is GM32M11328R.

[0025] According to the above-mentioned integrated communication power supply surge current protection device, it is characterized in that: the negative pole voltage of the communication system bus module is -48V.

[0026] The advantages of the present invention compared with the prior art are:

[0027] 1. The present invention changes the rectifier module of the communication device with an independent battery into a conversion module, and the input is changed from AC380V to DC220V. The backup working power supply of the communication device is transferred to the battery of the DC system, and the capacity of the battery of the DC system is appropriately increased to ensure continuous power supply in the event of an AC power failure, which saves a group of batteries and makes the device more environmentally friendly.

[0028] 2. The present invention provides a third path device module and a capacitor module electrically connected thereto, so that the capacitor module is charged online in real time. When a load with a large starting current appears, the capacitor module can instantly provide a short-term large current to protect the rectifier module, thereby enabling the communication device to work normally and greatly increasing safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic structural diagram of the integrated communication power supply surge current protection device of the present invention.

[0030] Figure 2 A schematic diagram of the structure of a communication device with an independent battery in the prior art.

[0031] Figure 3 A schematic diagram of the structure of a communication device in an integrated power supply in the prior art.

[0032] Figure 4 A schematic structural diagram of the integrated communication power supply surge current protection device of the present invention. DETAILED DESCRIPTION

[0033] Preferred Embodiments

[0034] The integrated communication power supply surge current protection device is characterized in that: it includes a DC feed-out module 1, a first circuit breaker module 100 electrically connected to the DC feed-out module 1; the other end of the first circuit breaker module 100 is electrically connected to a rectifier module 200; the other end of the rectifier module 200 is electrically connected to a second circuit breaker module 300; the other end of the second circuit breaker module 300 is electrically connected to a communication system bus module 400; the communication system bus module 400 is connected in parallel with a communication system circuit breaker module 500; the communication system bus module 400 is also connected in parallel with a third circuit breaker module 600; the other end of the third circuit breaker module 600 is electrically connected to a capacitor module 700.

[0035] The DC feeder module 1 comprises: a DC feeder cabinet feeder DC;

[0036] The first circuit breaker module 100 includes: an eleventh circuit breaker QF11, a twelfth circuit breaker QF12, and a thirteenth circuit breaker QF13;

[0037] The rectifier module 200 includes: a first rectifier U1, a second rectifier U2, and a third rectifier U3;

[0038] The second circuit breaker module 300 includes: a second circuit breaker QF2;

[0039] The third circuit breaker module 600 includes: a third circuit breaker QF3;

[0040] The communication system circuit breaker module 500 includes: a twenty-first circuit breaker 2QF1 to a thirty-fifth circuit breaker 2QF15, a first display light 2H1 to a fifteenth display light 2H15;

[0041] The capacitor module 700 includes a first capacitor C1 to a fourth capacitor C4;

[0042] One end of the DC feeder cabinet feeder line DC is electrically connected to one end of the eleventh circuit breaker QF11, one end of the twelfth circuit breaker QF12, and one end of the thirteenth circuit breaker QF13 respectively;

[0043] The other end of the eleventh circuit breaker QF11 is electrically connected to the first rectifier U1, the other end of the twelfth circuit breaker QF12 is electrically connected to the second rectifier U2, and the other end of the thirteenth circuit breaker QF13 is electrically connected to the third rectifier U3;

[0044] The other end of the first rectifier U1, the other end of the second rectifier U2, and the other end of the third rectifier U3 are electrically connected to one end of the second circuit breaker QF2 respectively;

[0045] The other end of the second circuit breaker QF2 is electrically connected to the communication system bus module 400;

[0046] The first display light 2H1 to the fifteenth display light 2H15 are respectively connected in parallel to the communication system bus module 400, and each of the twenty-first circuit breakers 2QF1 to the thirty-fifth circuit breakers 2QF15 are respectively connected in series with the first display light 2H1 to the fifteenth display light 2H15.

[0047] The DC feeder line of the DC feeder cabinet is 220V DC.

[0048] The models of the eleventh circuit breaker QF11, the twelfth circuit breaker QF12 and the thirteenth circuit breaker QF13 are all GM32M2328R16A.

[0049] The models of the first rectifier U1, the second rectifier U2, and the third rectifier U3 are all HD4830-3.

[0050] The model of the second circuit breaker QF2 is: GM32M2338R100AQF2.

[0051] The model of the third circuit breaker QF3 is GM5-250G / 2 / G-250A.

[0052] The models of the first capacitor C1 to the fourth capacitor C4 are all: 63V10000ΜF.

[0053] The model of the 21st circuit breaker 2QF1 to the 35th circuit breaker 2QF15 is GM32M11328R.

[0054] The negative pole voltage of the communication system bus module 400 is -48V.

[0055] An integrated communication power supply surge current protection device is added with an emergency surge current protection device. The entire -48V communication device has a 48V30A rectifier module 200, whose input power is DC220V and output is DC48V. The input power comes from the DC feed module 1. The battery capacity of the DC feed module 1 needs to take into account the entire load of the communication device and appropriately increase the capacity to ensure the power supply time in the event of an accident. The rectifier module 200 converts the voltage from DC220V to DC48V and sends it to the communication system bus module 400 to power subsequent equipment.

[0056] The conversion module has a capacity limit. Each module is rated at 30A, and the whole device is 90A. If the communication system bus module 400 has a large current at startup, the communication system bus module 400 will instantly protect the voltage from being reduced or even stop working, resulting in the risk of power failure of the communication system bus module 400. The integrated communication power supply surge current protection device is provided with a capacitor module 700, which is connected in parallel through four 10000μF capacitors: the first capacitor C1-the fourth capacitor C4. These four capacitors are charged in real time when working normally in the communication system bus module 400. When a large current occurs at startup, protection will be provided to enable the communication device to work normally, thereby ensuring the normal operation of the communication device.

Claims

1. Integrated communication power supply surge current protection device, characterized by: The invention comprises a DC feed module (1), a first circuit breaker module (100) being electrically connected to the DC feed module (1); the other end of the first circuit breaker module (100) being electrically connected to a rectifier module (200); the other end of the rectifier module (200) being electrically connected to a second circuit breaker module (300); the other end of the second circuit breaker module (300) being electrically connected to a communication system bus module (400); the communication system bus module (400) being connected in parallel to a communication system circuit breaker module (500); the communication system bus module (400) being further connected in parallel to a third circuit breaker module (600); and the other end of the third circuit breaker module (600) being electrically connected to a capacitor module (700).

2. The integrated communication power supply surge current protection device according to claim 1, characterized in that: The DC feeder module (1) comprises: a DC feeder cabinet feeder line DC; The first circuit breaker module (100) comprises: an eleventh circuit breaker QF11, a twelfth circuit breaker QF12, and a thirteenth circuit breaker QF13; The rectifier module (200) comprises: a first rectifier U1, a second rectifier U2, and a third rectifier U3; The second circuit breaker module (300) comprises: a second circuit breaker QF2; The third circuit breaker module (600) comprises: a third circuit breaker QF3; The communication system circuit breaker module (500) comprises: a twenty-first circuit breaker 2QF1 to a thirty-fifth circuit breaker 2QF15, a first display light 2H1 to a fifteenth display light 2H15; The capacitor module (700) comprises a first capacitor C1 to a fourth capacitor C4; The first capacitor C1 to the fourth capacitor C4 are connected in parallel and electrically connected to one end of the third circuit breaker QF3; the other end of the third circuit breaker QF3 is electrically connected to the communication system bus module (400); One end of the DC feeder cabinet feeder line DC is electrically connected to one end of the eleventh circuit breaker QF11, one end of the twelfth circuit breaker QF12, and one end of the thirteenth circuit breaker QF13 respectively; The other end of the eleventh circuit breaker QF11 is electrically connected to the first rectifier U1, the other end of the twelfth circuit breaker QF12 is electrically connected to the second rectifier U2, and the other end of the thirteenth circuit breaker QF13 is electrically connected to the third rectifier U3; The other end of the first rectifier U1, the other end of the second rectifier U2, and the other end of the third rectifier U3 are electrically connected to one end of the second circuit breaker QF2 respectively; The other end of the second circuit breaker QF2 is electrically connected to the communication system bus module (400); The first display light 2H1 to the fifteenth display light 2H15 are respectively connected in parallel to the communication system bus module (400), and each of the twenty-first circuit breaker 2QF1 to the thirty-fifth circuit breaker 2QF15 is respectively connected in series with the first display light 2H1 to the fifteenth display light 2H15.

3. The integrated communication power supply surge current protection device according to claim 2, characterized in that: The DC feeder line of the DC feeder cabinet is 220V DC.

4. The integrated communication power supply surge current protection device according to claim 2 or 3, characterized in that: The models of the eleventh circuit breaker QF11, the twelfth circuit breaker QF12 and the thirteenth circuit breaker QF13 are all GM32M2328R16A.

5. The integrated communication power supply surge current protection device according to claim 4, characterized in that: The models of the first rectifier U1, the second rectifier U2, and the third rectifier U3 are all HD4830-3.

6. The integrated communication power supply surge current protection device according to claim 5, characterized in that: The model of the second circuit breaker QF2 is: GM32M2338R100AQF2.

7. The integrated communication power supply surge current protection device according to claim 2 or 6, characterized in that: The model of the third circuit breaker QF3 is GM5-250G / 2 / G-250A.

8. The integrated communication power supply surge current protection device according to claim 7, characterized in that: The models of the first capacitor C1 to the fourth capacitor C4 are all: 63V10000ΜF.

9. The integrated communication power supply surge current protection device according to claim 8, characterized in that: The model of the 21st circuit breaker 2QF1 to the 35th circuit breaker 2QF15 is GM32M11328R.

10. The integrated communication power supply surge current protection device according to claim 9, characterized in that: The negative pole voltage of the communication system bus module (400) is -48V.

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