CN213304989U - Load monitoring and adjusting device for drop line - Google Patents

Load monitoring and adjusting device for drop line Download PDF

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Publication number
CN213304989U
CN213304989U CN202022052739.0U CN202022052739U CN213304989U CN 213304989 U CN213304989 U CN 213304989U CN 202022052739 U CN202022052739 U CN 202022052739U CN 213304989 U CN213304989 U CN 213304989U
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China
Prior art keywords
phase
voltage
low
pointer type
display
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CN202022052739.0U
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Chinese (zh)
Inventor
张虎
曹塞峰
代军
赵磊
王举
熊坤学
吴迎春
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State Grid Shaanxi Electric Power Co Baihe County Power Supply Branch
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State Grid Shaanxi Electric Power Co Baihe County Power Supply Branch
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Priority to CN202022052739.0U priority Critical patent/CN213304989U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/50Arrangements for eliminating or reducing asymmetry in polyphase networks

Abstract

The utility model discloses a house line load monitoring adjusting device down, through the female binding post that arranges of pointer-type ampere meter and low pressure, can monitor and adjust low-voltage line load, play and reduce the circuit loss, ensure the effect of transformer safe operation, pointer-type voltmeter plays the function of looking over voltage, and then has improved the service function of equipment, and three-phase electrical indication simultaneously, normal operating that can indicating equipment, through the circuit breaker, can cut off the power supply and adjust binding post, has improved the security of low-voltage line load monitoring adjustment, the utility model provides a house line down that exists among the prior art because the unbalanced potential safety hazard that causes easily of three-phase load, and then has reduced the problem of the service function nature of equipment.

Description

Load monitoring and adjusting device for drop line
Technical Field
The utility model belongs to the technical field of the distribution lines, concretely relates to drop service line load monitoring adjusting device.
Background
A power line rated at 1kV or less. The lower-line type low-voltage line comprises a low-voltage overhead line, a low-voltage overhead insulated line, a low-voltage cable line and an indoor distribution line, is used for directly transmitting electric energy to low-voltage electric equipment, and is an important component of a low-voltage distribution system (low-voltage distribution). The lower-line type low-voltage line can be accessed from a public low-voltage distribution network and is led out through a low-voltage distribution room; and the low-voltage power distribution device can also be led out from a transformer substation chamber of a user.
When the existing drop line load is in operation, the drop line load is inconvenient to monitor and adjust, so that the drop line three-phase load is unbalanced easily, potential safety hazards are caused, and the use functionality of equipment is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a house line load monitoring adjusting device down has solved the house line down that exists among the prior art and has caused the potential safety hazard easily because three-phase unbalanced load, and then has reduced the service function's of equipment problem.
The utility model adopts the technical proposal that a drop wire load monitoring and adjusting device comprises a distribution box, wherein the top surface inside the distribution box is provided with an A phase current transformer, a B phase current transformer and a C phase current transformer in sequence, an A phase drop wire passes through the A phase current transformer, a B phase drop wire passes through the B phase current transformer, a C phase drop wire passes through the C phase current transformer, the A phase drop wire, the B phase drop wire and the C phase drop wire are all connected to a low-voltage circuit breaker, the A phase drop wire is connected with a low-voltage A phase bus bar after passing through the lower side of the low-voltage circuit breaker, the B phase drop wire is connected with a low-voltage B phase bus bar, the C phase drop wire is connected with a low-voltage C phase bus bar, the low-voltage A phase bus bar is connected with a low-voltage A phase wiring terminal bar, the low-voltage B phase bus bar is connected with a low-voltage B phase wiring terminal bar, the low-voltage C phase bus bar is, a pointer type phase-A current display, a pointer type phase-B current display and a pointer type phase-C current display are sequentially arranged on a display mounting panel in the distribution box, the pointer type phase-A current display is connected with the phase-A current transformer, the pointer type phase-B current display is connected with the phase-B current transformer, the pointer type phase-C current display is connected with the phase-C current transformer, 1 pointer type voltage display is further arranged on the display mounting panel, a voltage viewing knob is arranged below the pointer type voltage display, the pointer type voltage display is connected with the voltage viewing knob, the voltage viewing knob is connected with a phase lower house line, a phase lower house line and a phase lower house line, an A phase electrical indicator lamp, a phase-B electrical indicator lamp and a pointer type phase-C current display are sequentially and correspondingly arranged below the pointer type phase-A current display, the pointer type phase-B current display and the pointer type phase-C current display, The C-phase electric indicator lamp is connected with the low-voltage A-phase busbar, the B-phase electric indicator lamp is connected with the low-voltage B-phase busbar, and the C-phase electric indicator lamp is connected with the low-voltage C-phase busbar.
The utility model is also characterized in that,
the pointer type A-phase current display, the pointer type B-phase current display and the pointer type C-phase current display are correspondingly connected with the A-phase current transformer, the B-phase current transformer and the C-phase current transformer through wires respectively.
The low-voltage phase A wiring terminal strip, the low-voltage phase B wiring terminal strip and the low-voltage phase C wiring terminal strip are bolt type wiring terminals.
And a zero line junction box is arranged at the bottom of one side wall of the distribution box and is connected with zero line loops of all elements through wires.
The beneficial effects of the utility model are that, a house line load monitoring adjusting device down, current transformer pass through the wire and link to each other with pointer-type ampere meter, and when house line had the electric current to flow through down, current transformer can respond to the output secondary side undercurrent and show on pointer-type ampere meter, and house line passes through the wire simultaneously and links to each other with pointer-type voltmeter down to can make three-phase voltage show in pointer-type voltmeter, and then can make things convenient for staff real-time observation voltage, electric current. When pointer-type ampere meter monitoring data shows that three-phase current is unequal, the staff in time adjusts house lead three-phase load down through the house lead female binding post adjustment mode of arranging the wiring down through comparing the three-phase load, through the electrical indicator lamp to look over the electrified condition of device, improved the service function nature of equipment.
Drawings
FIG. 1 is a schematic diagram of a main circuit configuration of a power distribution box;
fig. 2 is a schematic view of a load monitoring indication structure in the distribution box.
In the figure, 1 is a distribution box, 2 is a phase A house line, 3 is a phase B house line, 4 is a phase C house line, 5 is an phase O house line, 6 is a phase A current transformer, 7 is a phase B current transformer, 8 is a phase C current transformer, 9 is a low-voltage circuit breaker, 10 is a low-voltage phase A bus bar, 11 is a low-voltage phase B bus bar, 12 is a low-voltage phase C bus bar, 13 is a low-voltage phase A wiring terminal bar, 14 is a low-voltage phase B wiring terminal bar, 15 is a low-voltage phase C wiring terminal bar, 16 is a wiring terminal, 17 is a zero line terminal box, 18 is a display installation panel, 19 is a pointer type voltage display, 20 is a voltage viewing knob, 21 is a pointer type phase A current display, 22 is a pointer type phase B current display, 23 is a pointer type phase C current display, 24 is a phase A electric indicator light, 25 is a phase B electric indicator light, and 26 is a phase C electric indicator light.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The structure of the utility model is shown in figures 1-2, comprising a distribution box 1, wherein the top surface inside the distribution box 1 is sequentially provided with an A phase current transformer 6, a B phase current transformer 7 and a C phase current transformer 8, the A phase lower house line 2 passes through the A phase current transformer 6, the B phase lower house line 3 passes through the B phase current transformer 7, the C phase lower house line 4 passes through the C phase current transformer 8, the A phase lower house line 2, the B phase lower house line 3 and the C phase lower house line 4 are connected to a low voltage circuit breaker 9, the A phase lower house line 2 is connected with a low voltage A phase bus bar 10 after passing through the lower side of the low voltage circuit breaker 9, the B phase lower house line 3 is connected with a low voltage B phase bus bar 11, the C phase lower house line 4 is connected with a low voltage C phase bus bar 12, the low voltage A phase bus bar 10 is connected with a low voltage A phase wiring terminal bar 13, the low voltage B phase bus bar 11 is connected with a low voltage, the low-voltage C-phase busbar 12 is connected with a low-voltage C-phase wiring terminal row 15, a pointer type A-phase current display 21, a pointer type B-phase current display 22 and a pointer type C-phase current display 23 are sequentially arranged on a display mounting panel 18 in the distribution box 1, the pointer type A-phase current display 21 is connected with an A-phase current transformer 6, the pointer type B-phase current display 22 is connected with a B-phase current transformer 7, the pointer type C-phase current display 23 is connected with a C-phase current transformer 8, 1 pointer type voltage display 19 is further arranged on the display mounting panel 18, a voltage viewing knob 20 is arranged below the pointer type voltage display 19, the pointer type voltage display 19 is connected with the voltage viewing knob 20, the voltage viewing knob 20 is connected with an A-phase lower subscriber line 2, a B-phase lower subscriber line 3 and a C-phase lower subscriber line 4, the pointer type A-phase current display 21 and the pointer type B-phase current display 22, An A-phase electric indicator lamp 24, a B-phase electric indicator lamp 25 and a C-phase electric indicator lamp 26 are correspondingly arranged below the pointer type C-phase current display 23 in sequence, the A-phase electric indicator lamp 24 is connected with the low-voltage A-phase busbar 10, the B-phase electric indicator lamp 25 is connected with the low-voltage B-phase busbar 11, and the C-phase electric indicator lamp 26 is connected with the low-voltage C-phase busbar 12.
Pointer type A phase current display 21, pointer type B phase current display 22 and pointer type C phase current display 23 are correspondingly connected with A phase current transformer 6, B phase current transformer 7 and C phase current transformer 8 through wires.
The low-voltage phase A wiring terminal strip 13, the low-voltage phase B wiring terminal strip 14 and the low-voltage phase C wiring terminal strip 15 are bolt type wiring terminals.
A zero line junction box 17 is installed at the bottom of one side wall of the distribution box 1, and the zero line junction box 17 is connected with zero line loops of all elements through wires.
The utility model relates to a lower house line load monitoring adjusting device, the theory of operation as follows:
a phase current transformer 6, B phase current transformer 7, C phase current transformer 8 passes through the wire and links to each other with pointer ammeter, when the house lead has the current to flow through, A phase current transformer 6, B phase current transformer 7, C phase current transformer 8 can respond to the output secondary side undercurrent and show on the pointer ammeter that corresponds the connection separately, pointer voltage display 19 below is installed simultaneously and is looked over knob 20, pointer voltage display 19 is looked over knob 20 and voltage and is connected, voltage is looked over knob 20 and A phase house lead 2 down, B phase house lead 3 down, C phase house lead 4 down is connected, thereby can make three-phase voltage can show in the pointer voltmeter, and then can make things convenient for the staff to observe voltage, electric current in real time. When pointer-type ampere meter monitoring data shows that three-phase current is unequal, the staff in time adjusts house wire three-phase load down through comparing three-phase load, female binding post adjustment wiring mode of arranging through the house wire, through A looks electric pilot lamp 24, B looks electric pilot lamp 25, C looks electric pilot lamp 26 to look over the electrified condition of device, improved the service function nature of equipment.
The utility model relates to a house line load monitoring adjusting device down, through the female binding post that arranges of pointer-type ampere meter and low pressure, can monitor and adjust low pressure circuit load, play and reduce the circuit loss, improve the power supply quality, ensure the effect of transformer and circuit safe operation, the pointer-type voltmeter plays the function of looking over voltage, and then the service function of equipment has been improved, three-phase electrical indication simultaneously, can indicate equipment's normal operating, through the circuit breaker, can cut off the power supply adjust binding post, the security of house line load monitoring adjustment down has been improved.

Claims (4)

1. A load monitoring and adjusting device for a drop service line is characterized by comprising a distribution box (1), wherein an A-phase current transformer (6), a B-phase current transformer (7) and a C-phase current transformer (8) are sequentially arranged on the top surface in the distribution box (1), the A-phase drop service line (2) penetrates through the middle of the A-phase current transformer (6), the B-phase drop service line (3) penetrates through the middle of the B-phase current transformer (7), the C-phase drop service line (4) penetrates through the middle of the C-phase current transformer (8), the lower parts of the A-phase drop service line (2), the B-phase drop service line (3) and the C-phase drop service line (4) are connected to a low-voltage circuit breaker (9), the A-phase drop service line (2) is connected with a low-voltage A-phase busbar (10) after penetrating through the lower side of the low-voltage circuit breaker (9), the B-phase drop service line (3) is connected with a low-voltage B-phase busbar (11, the low-voltage phase A bus bar (10) is connected with a low-voltage phase A wiring terminal bar (13), the low-voltage phase B bus bar (11) is connected with a low-voltage phase B wiring terminal bar (14), the low-voltage phase C bus bar (12) is connected with a low-voltage phase C wiring terminal bar (15), a pointer type phase A current display (21), a pointer type phase B current display (22) and a pointer type phase C current display (23) are sequentially arranged on a display mounting panel (18) in the distribution box (1), the pointer type phase A current display (21) is connected with a phase A current transformer (6), the pointer type phase B current display (22) is connected with a phase B current transformer (7), the pointer type phase C current display (23) is connected with a phase C current transformer (8), 1 pointer type voltage display (19) is further arranged on the display mounting panel (18), and a voltage viewing knob (20) is arranged below the pointer type voltage display (19), pointer type voltage display (19) is connected with voltage look over knob (20), voltage look over knob (20) and A looks house lead (2) down, B looks house lead (3) down, C looks house lead (4) down are connected, pointer type A phase current display (21), pointer type B phase current display (22), pointer type C phase current display (23) below corresponds in proper order has A looks electric indicator (24), B looks electric indicator (25), C looks electric indicator (26), A looks electric indicator (24) are connected with low pressure A looks female arranging (10), B looks electric indicator (25) are connected with low pressure B looks female arranging (11), C looks electric indicator (26) are connected with low pressure C looks female arranging (12).
2. The subscriber line load monitoring and adjusting device according to claim 1, wherein the pointer type A phase current display (21), the pointer type B phase current display (22) and the pointer type C phase current display (23) are respectively and correspondingly connected with the A phase current transformer (6), the B phase current transformer (7) and the C phase current transformer (8) through wires.
3. The drop line load monitoring and adjusting device according to claim 1, wherein the low-voltage phase-A terminal block (13), the low-voltage phase-B terminal block (14) and the low-voltage phase-C terminal block (15) are bolt-type terminals.
4. The device for monitoring and adjusting the load of the user line according to claim 1, wherein a zero line terminal block (17) is installed at the bottom of one side wall of the distribution box (1), and the zero line terminal block (17) is connected with zero line loops of all elements through wires.
CN202022052739.0U 2020-09-18 2020-09-18 Load monitoring and adjusting device for drop line Active CN213304989U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022052739.0U CN213304989U (en) 2020-09-18 2020-09-18 Load monitoring and adjusting device for drop line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022052739.0U CN213304989U (en) 2020-09-18 2020-09-18 Load monitoring and adjusting device for drop line

Publications (1)

Publication Number Publication Date
CN213304989U true CN213304989U (en) 2021-05-28

Family

ID=76032000

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022052739.0U Active CN213304989U (en) 2020-09-18 2020-09-18 Load monitoring and adjusting device for drop line

Country Status (1)

Country Link
CN (1) CN213304989U (en)

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