CN213990144U - Communication power supply cabinet drive circuit - Google Patents

Communication power supply cabinet drive circuit Download PDF

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Publication number
CN213990144U
CN213990144U CN202023118617.3U CN202023118617U CN213990144U CN 213990144 U CN213990144 U CN 213990144U CN 202023118617 U CN202023118617 U CN 202023118617U CN 213990144 U CN213990144 U CN 213990144U
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China
Prior art keywords
control device
comprehensive protection
phase
circuit breaker
transformer
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CN202023118617.3U
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Chinese (zh)
Inventor
何世欣
黄跃盛
艾春
王雪梅
廖流利
陈剑波
叶丽明
赵时琰
廖丽青
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Fujian Shenchuang Information Technology Co ltd
Fujian Yongfu Operation And Maintenance Technology Co ltd
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Fujian Shenchuang Information Technology Co ltd
Fujian Yongfu Operation And Maintenance Technology Co ltd
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Priority to CN202023118617.3U priority Critical patent/CN213990144U/en
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Abstract

The utility model relates to the technical field of communication power cabinets, in particular to a communication power cabinet driving circuit, which comprises a shunt tripping circuit breaker DK1, a shunt tripping circuit breaker DK2, a protective current transformer, a residual current transformer, a three-phase transformer TR, a surge protector LY, a first comprehensive protection measurement and control device, a second comprehensive protection measurement and control device and a third comprehensive protection measurement and control device which are arranged on the communication power cabinet, wherein a first pin of the shunt tripping circuit breaker DK1 is respectively and electrically connected with the surge protector LY, the first comprehensive protection measurement and control device, the second comprehensive protection measurement and control device and the third comprehensive protection measurement and control device, a third pin of the shunt tripping circuit breaker DK1 is respectively and electrically connected with the surge protector LY and the first comprehensive protection measurement and control device, through the matching among all devices, the circuit transmission voltage on the communication power cabinet is raised, the circuit voltage loss and the circuit electric energy loss are reduced, and further, the power supply voltage in the base station meets the requirement.

Description

Communication power supply cabinet drive circuit
Technical Field
The utility model relates to a communication power supply cabinet technical field, in particular to communication power supply cabinet drive circuit.
Background
The communication power supply system is a heart of the communication system, is a stable and reliable communication power supply system, is a key for ensuring the safe and reliable operation of the communication system, and once the power supply of the communication equipment is interrupted due to the fault of the communication power supply system, the communication equipment cannot operate, so that the interruption of a communication circuit and the paralysis of the communication system are caused, and great economic and social benefit loss is caused. Therefore, the communication power supply system occupies a very important position in the communication system. The existing communication power supply cabinet driving circuit causes that the power supply voltage in a base station can not meet the requirement due to the loss of line voltage and the loss of line electric energy.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to solve the technical problems that: a communication power cabinet driving circuit is provided.
In order to solve the technical problem, the utility model discloses a technical scheme be:
a communication power supply cabinet driving circuit comprises a shunt tripping circuit breaker DK1, a shunt tripping circuit breaker DK2, a protective current transformer, a residual current transformer, a three-phase transformer TR, a surge protector LY, a first comprehensive protection measurement and control device, a second comprehensive protection measurement and control device and a third comprehensive protection measurement and control device which are arranged on a communication power supply cabinet;
the first pin of the shunt tripping circuit breaker DK1 is respectively and electrically connected with a surge protector LY, a first comprehensive protection and control device, a second comprehensive protection and control device and a third comprehensive protection and control device, the third pin of the shunt tripping circuit breaker DK1 is respectively and electrically connected with the surge protector LY and the first comprehensive protection and control device, the fifth pin of the shunt tripping circuit breaker DK1 is respectively and electrically connected with the surge protector LY and the first comprehensive protection and control device, the second pin of the shunt tripping circuit breaker DK1, the fourth pin of the shunt tripping circuit breaker DK1 and the sixth pin of the shunt tripping circuit breaker DK1 are respectively and sequentially connected with a protection current transformer, a residual current transformer and a three-phase measurement and control transformer TR, the three-phase transformer TR is respectively and electrically connected with the first comprehensive protection and control device, the second comprehensive protection and control device and the third comprehensive protection and control device, and the third comprehensive protection measurement and control device is electrically connected with the first comprehensive protection measurement and control device and the second comprehensive protection measurement and control device respectively.
Further, the output end of the first phase of the three-phase transformer TR is connected with a limit switch SL1, the output end of the second phase of the three-phase transformer TR is respectively connected with a limit switch SL2 and a temperature and humidity sensor SN, and the output end of the third phase of the three-phase transformer TR is connected with a limit switch SL 3.
Furthermore, the shunt tripping circuit breaker DK1 and the shunt tripping circuit breaker DK2 are both CDM3-3310 in model.
Further, the model of the three-phase transformer TR is YSG-30 KVA.
Further, the surge protector is of the type TRSII 20.
The beneficial effects of the utility model reside in that:
by arranging the protection current transformer, the unrepairable damage of the step-up transformer, the step-down transformer and the line caused by the fault can be prevented; the surge protector, also called lightning protector, is an electronic device for providing safety protection for the protection of circuits, transformers and microcomputers, and can conduct and shunt current in a very short time when peak current or voltage is suddenly generated in an electric loop or a communication circuit due to external interference, thereby avoiding the damage of surge to other equipment in the loop; the shunt tripping circuit breaker DK1 and the shunt tripping circuit breaker DK2 are arranged, so that the power supply breaking and isolating effects can be achieved, when maintenance and overhaul are carried out, power supplies on two sides can be conveniently and safely disconnected, and when a fault occurs, a microcomputer protection device acts to automatically cut off the power supply, so that the equipment is prevented from being enlarged and damaged; the communication power cabinet drive circuit of this scheme design, through shunt release circuit breaker DK1, shunt release circuit breaker DK2, protection current transformer, residual current transformer, three phase transformer TR, surge protector LY, first comprehensive protection measurement and control device, the cooperation between second comprehensive protection measurement and control device and the third comprehensive protection measurement and control device, make circuit transmission voltage on the communication power cabinet rise, circuit voltage loss and circuit electric energy loss have been reduced, and then make supply voltage meet the demands in the basic station.
Drawings
Fig. 1 is an electrical schematic diagram of a communication power cabinet driving circuit according to the present invention.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, the technical solution provided by the present invention is:
a communication power supply cabinet driving circuit comprises a shunt tripping circuit breaker DK1, a shunt tripping circuit breaker DK2, a protective current transformer, a residual current transformer, a three-phase transformer TR, a surge protector LY, a first comprehensive protection measurement and control device, a second comprehensive protection measurement and control device and a third comprehensive protection measurement and control device which are arranged on a communication power supply cabinet;
the first pin of the shunt tripping circuit breaker DK1 is respectively and electrically connected with a surge protector LY, a first comprehensive protection and control device, a second comprehensive protection and control device and a third comprehensive protection and control device, the third pin of the shunt tripping circuit breaker DK1 is respectively and electrically connected with the surge protector LY and the first comprehensive protection and control device, the fifth pin of the shunt tripping circuit breaker DK1 is respectively and electrically connected with the surge protector LY and the first comprehensive protection and control device, the second pin of the shunt tripping circuit breaker DK1, the fourth pin of the shunt tripping circuit breaker DK1 and the sixth pin of the shunt tripping circuit breaker DK1 are respectively and sequentially connected with a protection current transformer, a residual current transformer and a three-phase measurement and control transformer TR, the three-phase transformer TR is respectively and electrically connected with the first comprehensive protection and control device, the second comprehensive protection and control device and the third comprehensive protection and control device, and the third comprehensive protection measurement and control device is electrically connected with the first comprehensive protection measurement and control device and the second comprehensive protection measurement and control device respectively.
From the above description, the beneficial effects of the present invention are:
by arranging the protection current transformer, the unrepairable damage of the step-up transformer, the step-down transformer and the line caused by the fault can be prevented; the surge protector, also called lightning protector, is an electronic device for providing safety protection for the protection of circuits, transformers and microcomputers, and can conduct and shunt current in a very short time when peak current or voltage is suddenly generated in an electric loop or a communication circuit due to external interference, thereby avoiding the damage of surge to other equipment in the loop; the shunt tripping circuit breaker DK1 and the shunt tripping circuit breaker DK2 are arranged, so that the power supply breaking and isolating effects can be achieved, when maintenance and overhaul are carried out, power supplies on two sides can be conveniently and safely disconnected, and when a fault occurs, a microcomputer protection device acts to automatically cut off the power supply, so that the equipment is prevented from being enlarged and damaged; the communication power cabinet drive circuit of this scheme design, through shunt release circuit breaker DK1, shunt release circuit breaker DK2, protection current transformer, residual current transformer, three phase transformer TR, surge protector LY, first comprehensive protection measurement and control device, the cooperation between second comprehensive protection measurement and control device and the third comprehensive protection measurement and control device, make circuit transmission voltage on the communication power cabinet rise, circuit voltage loss and circuit electric energy loss have been reduced, and then make supply voltage meet the demands in the basic station.
Further, the output end of the first phase of the three-phase transformer TR is connected with a limit switch SL1, the output end of the second phase of the three-phase transformer TR is respectively connected with a limit switch SL2 and a temperature and humidity sensor SN, and the output end of the third phase of the three-phase transformer TR is connected with a limit switch SL 3.
Furthermore, the shunt tripping circuit breaker DK1 and the shunt tripping circuit breaker DK2 are both CDM3-3310 in model.
Further, the model of the three-phase transformer TR is YSG-30 KVA.
Further, the surge protector is of the type TRSII 20.
Referring to fig. 1, a first embodiment of the present invention is:
a communication power supply cabinet driving circuit comprises a shunt tripping circuit breaker DK1, a shunt tripping circuit breaker DK2, a protection current transformer (the model is LMZJ-0.550/5A), a residual current transformer (the model is CTK45), a three-phase transformer TR, a surge protector LY, a first comprehensive protection measurement and control device (shown by 1n1 and YF-410 in figure 1), a second comprehensive protection measurement and control device (shown by 1n2 and YF-410 in figure 1) and a third comprehensive protection measurement and control device (shown by 1n3 and YF-410 in figure 1);
the first pin of the shunt tripping circuit breaker DK1 is respectively and electrically connected with a surge protector LY, a first comprehensive protection and control device, a second comprehensive protection and control device and a third comprehensive protection and control device, the third pin of the shunt tripping circuit breaker DK1 is respectively and electrically connected with the surge protector LY and the first comprehensive protection and control device, the fifth pin of the shunt tripping circuit breaker DK1 is respectively and electrically connected with the surge protector LY and the first comprehensive protection and control device, the second pin of the shunt tripping circuit breaker DK1, the fourth pin of the shunt tripping circuit breaker DK1 and the sixth pin of the shunt tripping circuit breaker DK1 are respectively and sequentially connected with a protection current transformer, a residual current transformer and a three-phase measurement and control transformer TR, the three-phase transformer TR is respectively and electrically connected with the first comprehensive protection and control device, the second comprehensive protection and control device and the third comprehensive protection and control device, and the third comprehensive protection measurement and control device is electrically connected with the first comprehensive protection measurement and control device and the second comprehensive protection measurement and control device respectively.
The output end of a first phase of the three-phase transformer TR is connected with a limit switch SL1, the output end of a second phase of the three-phase transformer TR is respectively connected with a limit switch SL2 and a temperature and humidity sensor SN, and the output end of a third phase of the three-phase transformer TR is connected with a limit switch SL 3.
The shunt tripping circuit breaker DK1 and the shunt tripping circuit breaker DK2 are both CDM3-3310 in model.
The model of the three-phase transformer TR is YSG-30 KVA.
The surge protector is in a type TRSII 20.
In this embodiment, the communication power supply cabinet is a 30KVA step-up transformer cabinet;
when the power supply is connected with the mains supply, (1) GD1-1, GD1-2, GD1-3 and GD1-4 are respectively phase A, phase B, phase C and phase N incoming terminals of the booster transformer cabinet, and the mains supply lines can be connected on site.
(2) GD2-1, GD2-2, GD2-3, GD2-4 are the A phase, B phase, C phase, N phase outlet terminals of the step-up transformer cabinet respectively, and the cable lines are connected to the site.
(3) The output side (high-voltage side) terminal of the step-up transformer is provided with three taps for outputting, and when the mains supply phase voltage is 230V three-phase balance, the taps are connected with 660V gears; when the voltage of the mains supply phase is lower than 210V three-phase balance, a tap is connected with a 693V gear; when the voltage of the commercial power phase is higher than the three-phase balance of 250V, a tap is connected with a 627V gear.
(4) If the three-phase voltage of the mains supply is unbalanced, the unbalance degree exceeds 5%, the output of a lower phase tap is connected with a 693V gear, and the output of a higher phase tap is connected with a 627V gear.
In this embodiment, the communication power supply cabinet is a 30KVA step-down transformer cabinet;
when the base station is connected with the base station, (1) GD1-1, GD1-2, GD1-3 and GD1-4 are respectively phase A, phase B, phase C and phase N incoming terminals of the step-down transformer cabinet, and power supply lines (connected with a cable line of the step-up transformer) are respectively connected on site.
(2) GD2-1, GD2-2, GD2-3, GD2-4 are the A phase, B phase, C phase, N phase outlet terminals of the step-down transformer cabinet respectively, and the site only needs to connect the cable lines of the base station respectively.
(3) The input side (high-voltage side) terminal of the step-down transformer is provided with three tap outputs, and when the input phase voltage is more than 693V and three phases are balanced, the tap is connected with a 693V gear; when the input phase voltage is more than 660V and is balanced, tapping is carried out at a 660V gear; when the input phase voltage is larger than 627V and the three phases are balanced, the tap is connected with a 627V gear.
(4) If the input three-phase voltage is unbalanced, the unbalance degree exceeds 5%, the output of a lower phase tap is connected with a 627V gear, and the output of a higher phase tap is connected with a 693V gear.
In summary, the driving circuit of the communication power cabinet provided by the utility model can prevent the unrepairable damage of the step-up transformer, the step-down transformer and the circuit when the fault occurs by arranging the protection current transformer; the surge protector, also called lightning protector, is an electronic device for providing safety protection for the protection of circuits, transformers and microcomputers, and can conduct and shunt current in a very short time when peak current or voltage is suddenly generated in an electric loop or a communication circuit due to external interference, thereby avoiding the damage of surge to other equipment in the loop; the shunt tripping circuit breaker DK1 and the shunt tripping circuit breaker DK2 are arranged, so that the power supply breaking and isolating effects can be achieved, when maintenance and overhaul are carried out, power supplies on two sides can be conveniently and safely disconnected, and when a fault occurs, a microcomputer protection device acts to automatically cut off the power supply, so that the equipment is prevented from being enlarged and damaged; the communication power cabinet drive circuit of this scheme design, through shunt release circuit breaker DK1, shunt release circuit breaker DK2, protection current transformer, residual current transformer, three phase transformer TR, surge protector LY, first comprehensive protection measurement and control device, the cooperation between second comprehensive protection measurement and control device and the third comprehensive protection measurement and control device, make circuit transmission voltage on the communication power cabinet rise, circuit voltage loss and circuit electric energy loss have been reduced, and then make supply voltage meet the demands in the basic station.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.

Claims (5)

1. A communication power supply cabinet driving circuit is characterized by comprising a shunt tripping circuit breaker DK1, a shunt tripping circuit breaker DK2, a protection current transformer, a residual current transformer, a three-phase transformer TR, a surge protector LY, a first comprehensive protection measurement and control device, a second comprehensive protection measurement and control device and a third comprehensive protection measurement and control device which are arranged on a communication power supply cabinet;
the first pin of the shunt tripping circuit breaker DK1 is respectively and electrically connected with a surge protector LY, a first comprehensive protection and control device, a second comprehensive protection and control device and a third comprehensive protection and control device, the third pin of the shunt tripping circuit breaker DK1 is respectively and electrically connected with the surge protector LY and the first comprehensive protection and control device, the fifth pin of the shunt tripping circuit breaker DK1 is respectively and electrically connected with the surge protector LY and the first comprehensive protection and control device, the second pin of the shunt tripping circuit breaker DK1, the fourth pin of the shunt tripping circuit breaker DK1 and the sixth pin of the shunt tripping circuit breaker DK1 are respectively and sequentially connected with a protection current transformer, a residual current transformer and a three-phase measurement and control transformer TR, the three-phase transformer TR is respectively and electrically connected with the first comprehensive protection and control device, the second comprehensive protection and control device and the third comprehensive protection and control device, and the third comprehensive protection measurement and control device is electrically connected with the first comprehensive protection measurement and control device and the second comprehensive protection measurement and control device respectively.
2. The communication power cabinet driving circuit according to claim 1, wherein an output end of a first phase of the three-phase transformer TR is connected with a limit switch SL1, an output end of a second phase of the three-phase transformer TR is respectively connected with a limit switch SL2 and a temperature and humidity sensor SN, and an output end of a third phase of the three-phase transformer TR is connected with a limit switch SL 3.
3. The communication power cabinet driving circuit according to claim 1, wherein the shunt trip breaker DK1 and the shunt trip breaker DK2 are CDM 3-3310.
4. The communication power cabinet driving circuit according to claim 1, wherein the three-phase transformer TR is YSG-30 KVA.
5. The communication power cabinet driving circuit according to claim 1, wherein the surge protector is TRSII 20.
CN202023118617.3U 2020-12-22 2020-12-22 Communication power supply cabinet drive circuit Active CN213990144U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202023118617.3U CN213990144U (en) 2020-12-22 2020-12-22 Communication power supply cabinet drive circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202023118617.3U CN213990144U (en) 2020-12-22 2020-12-22 Communication power supply cabinet drive circuit

Publications (1)

Publication Number Publication Date
CN213990144U true CN213990144U (en) 2021-08-17

Family

ID=77247459

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202023118617.3U Active CN213990144U (en) 2020-12-22 2020-12-22 Communication power supply cabinet drive circuit

Country Status (1)

Country Link
CN (1) CN213990144U (en)

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