CN202042813U - Switch type 10 kV temporary box type power transformation device - Google Patents

Abstract

The utility model relates to a switch-type 10kV temporary box-type power transformation device, which comprises a 10kV incoming line isolation metering circuit, a 10kV voltage change arrester circuit, a 10kV incoming line circuit breaker circuit, a lead line circuit, and two outgoing line circuits; Wherein, the 10kV incoming line isolation metering circuit, the 10kV voltage change arrester circuit and the 10kV incoming line circuit breaker circuit are respectively connected through the first high-voltage bus; the described lead circuit and the two outgoing circuits are respectively connected through the second high-voltage bus; The outlet circuit includes an isolating switch and a circuit breaker connected through the circuit. The utility model has the advantages of simple structure, convenient operation and maintenance, high working efficiency, safety and reliability, and pays attention to environmental protection and resource saving.

Description

A switch-type 10kV temporary box-type substation

technical field

The utility model relates to a power transformation device, in particular to a switch-type 10kV temporary box-type power transformation device.

Background technique

The reliability of the power receiving and distribution system on the user side is one of the important indicators for the assessment of power supply enterprises, and it also reflects the operation status and technical management level of the power supply network. important sign of degree. With the development of the times, the user's power distribution system requires higher reliability, more flexible intelligence, easier operation, more energy-saving operation, simpler maintenance, and higher safety performance.

At present, there is no unified standard user-side power distribution system solution in the Shanghai power market, and the types of customer equipment are relatively complicated, the individual requirements are relatively strong, and the market is becoming more and more open, which brings difficulties to user-side power distribution. Moreover, because the power measuring equipment is not independent, there is also a hidden danger of power theft, which is likely to increase the line loss rate. In addition, there are certain unsafe factors in the existing wiring mode.

Utility model content

The purpose of this utility model is to provide a switch-type 10kV temporary box-type substation device with simple structure, convenient operation and maintenance, high work efficiency, safety and reliability, environmental protection and resource saving in order to overcome the above-mentioned defects in the prior art.

In order to achieve the above purpose, the utility model provides a switch-type 10kV temporary box-type substation device, which includes a 10kV incoming line isolation metering circuit connected by a circuit, a 10kV voltage change arrester circuit, a 10kV incoming line circuit breaker circuit, a lead wire circuit, Two outlet circuits and distribution transformers; wherein, the 10kV incoming line isolation metering circuit, the 10kV voltage change arrester circuit and the 10kV incoming line circuit breaker circuit are respectively connected through the first high-voltage busbar; the lead line circuit and the two outgoing line The circuits are respectively connected through the second high-voltage busbar; the outgoing circuit includes an isolating switch and a circuit breaker connected through the circuits.

The 10kV incoming line isolation metering circuit includes: a first current transformer connected to the first high-voltage bus; a first isolation switch connected in series with the first current transformer; The first capacitor connected in series with the switch; the first signal lamp connected in series with the first capacitor, and the first signal lamp is grounded; the first fuse connected with the first high-voltage bus; the first fuse connected with the first fuse A first voltage transformer connected in series, and the first voltage transformer is grounded; a second capacitor connected to the first high-voltage bus; a second signal lamp connected in series with the second capacitor, and the second signal lamp is grounded .

The 10kV voltage change arrester circuit includes: a second isolating switch connected to the first high-voltage bus; a first surge protector connected in series with the second isolating switch, and the first surge protector grounding; a second fuse connected in series with the second isolating switch; and a second voltage transformer connected in series with the second fuse.

The 10kV incoming circuit breaker circuit includes: a third isolating switch connected to the first high voltage bus; a first circuit breaker connected in series with the third isolating switch; connected in series with the first circuit breaker The fourth isolating switch, and the fourth isolating switch is grounded; the second current transformer connected in series with the first circuit breaker, and the second current transformer is connected to the second high-voltage bus; A third capacitor connected in series with the second current transformer; a third signal lamp connected in series with the third capacitor, and the third signal lamp is grounded. Further, the first circuit breaker in the 10kV incoming circuit breaker circuit is a vacuum circuit breaker, which is electrically interlocked with the first, third and fourth isolating switches respectively.

The lead circuit includes: a fourth capacitor connected to the second high-voltage bus; a fourth signal lamp connected in series with the fourth capacitor, and the fourth signal lamp is grounded.

The outlet circuit includes: a fifth isolating switch connected to the second high-voltage bus; a second circuit breaker connected in series with the fifth isolating switch; a third circuit breaker connected in series with the second circuit breaker A transformer; a sixth isolation switch, a fifth capacitor, and a second surge protector respectively connected to the third current transformer, and the sixth isolation switch and the second surge protector are respectively grounded; and The fifth signal lamp is connected in series with the fifth capacitor, and the fifth signal lamp is grounded. Further, the second circuit breaker is a vacuum circuit breaker, which is electrically interlocked with the fifth isolating switch.

Compared with the prior art, the utility model has the following advantages: 1. Convenient operation and maintenance, high work efficiency, low construction and operation costs, can give full play to the advantage of scale, and improve the overall benefit; 2. The utility model also has safety, reliability, technical Advanced, wide coverage, environmental protection, resource saving, and low cost; 3. Simple structure and easy to use.

Description of drawings

Fig. 1 is a structural schematic diagram of a switch-type 10kV temporary box-type substation device of the present invention.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, a switch-type 10kV temporary box-type substation device includes a 10kV incoming line isolation metering circuit 1, a 10kV voltage change arrester circuit 2, a 10kV incoming line circuit breaker circuit 3, and a lead circuit 4 connected by circuits , Two identical outlet circuits 5 and distribution transformers. Wherein, the 10kV incoming line isolation metering circuit 1 , the 10kV voltage change arrester circuit 2 and the 10kV incoming line circuit breaker circuit 3 are respectively connected to the set first high voltage bus 7 . The lead circuit 4 and the two identical outgoing circuits 5 are respectively connected to the set second high voltage bus 8 .

The 10kV incoming line isolation metering circuit 1 includes: a first current transformer 11 connected to the first high-voltage bus 7; a first isolating switch 12 connected in series with the first current transformer 11; The first capacitor 13 connected in series with the first isolating switch 12; the first signal lamp 14 connected in series with the first capacitor 13, and the first signal lamp 14 is grounded; the first signal lamp connected to the first high-voltage bus 7 A fuse 15; a first voltage transformer 16 connected in series with the first fuse 15, and the first voltage transformer 16 is grounded; a second capacitor 17 connected to the first high-voltage bus 7; The second signal lamp 18 is connected in series with the second capacitor 17, and the second signal lamp 18 is grounded.

The 10kV voltage change arrester circuit 2 includes: a second isolating switch 21 connected to the first high-voltage bus 7; a first surge protector 22 connected in series with the second isolating switch 21, and the first A surge protector 22 is grounded; at the same time, a second fuse 23 connected in series with the second isolating switch 21 ; and a second voltage transformer 24 connected in series with the second fuse 23 .

The 10kV incoming circuit breaker circuit 3 includes: a third isolating switch 31 connected to the first high-voltage bus 7; a first circuit breaker 32 connected in series with the third isolating switch 31; The fourth isolating switch 33 in series with the first circuit breaker 32, and the fourth isolating switch 33 is grounded; the second current transformer 34 connected in series with the first circuit breaker 32, and the second current transformer 34 is connected with the first circuit breaker 32 in series. The second high-voltage bus 8 is connected; the third capacitor 35 connected in series with the second current transformer 34; the third signal lamp 36 connected in series with the third capacitor 35, and the third signal lamp 36 is grounded.

Further, the first circuit breaker 32 in the 10kV incoming circuit breaker circuit 3 is a vacuum circuit breaker, which is electrically interlocked with the first isolating switch 12, the third isolating switch 31 and the fourth isolating switch 33 respectively. .

The lead circuit 4 includes: a fourth capacitor 41 connected to the second high-voltage bus 8; a fourth signal lamp 42 connected in series with the fourth capacitor 41, and the fourth signal lamp 42 is grounded.

The outlet circuit 5 includes: a fifth isolating switch 51 connected to the second high-voltage bus 8; a second circuit breaker 52 connected in series with the fifth isolating switch 51; 52 in series with the third current transformer 57; the sixth isolation switch 53, the fifth capacitor 54 and the second surge protector 56 respectively connected to the third current transformer 57, and the sixth isolation switch 53 and the second surge protector 56 are respectively grounded; the fifth signal lamp 55 connected in series with the fifth capacitor 54 is grounded.

Further, the second circuit breaker 52 is a vacuum circuit breaker, which is electrically interlocked with the fifth isolating switch 51 .

Compared with the prior art, the utility model has the following advantages: 1. Convenient operation and maintenance, high work efficiency, low construction and operation costs, can give full play to the advantage of scale, and improve the overall benefit; 2. The utility model also has safety, reliability, technical Advanced, wide coverage, environmental protection, resource saving, and low cost; 3. Simple structure and easy to use.

Although the content of the present invention has been described in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions of the present utility model will be obvious to those skilled in the art after reading the above content. Therefore, the protection scope of the present utility model should be defined by the appended claims.

Claims (6)

1. A switch-type 10kV temporary box-type power transformation device, characterized in that it includes a 10kV incoming line isolation metering circuit (1), a 10kV voltage change arrester circuit (2), and a 10kV incoming line circuit breaker circuit (3 ), lead circuit (4), two outlet circuits (5); among them, The 10kV incoming line isolation metering circuit (1), the 10kV voltage change arrester circuit (2) and the 10kV incoming line circuit breaker circuit (3) are respectively connected to the set first high-voltage busbar (7); The lead circuit (4) and the two outlet circuits (5) are respectively connected to the set second high-voltage busbar (8); The outlet circuit (5) includes an isolating switch and a circuit breaker connected through the circuit. 2. The switch-type 10kV temporary box-type substation device according to claim 1, characterized in that the 10kV incoming line isolation metering circuit (1) includes: a first current transformer (11) connected to the first high voltage busbar (7); A first isolating switch (12) connected in series with the first current transformer (11); a first capacitor (13) connected in series with the first isolating switch (12); A first signal lamp (14) connected in series with the first capacitor (13), and the first signal lamp (14) is grounded; a first fuse (15) connected to the first high-voltage bus (7); A first voltage transformer (16) connected in series with the first fuse (15), and the first voltage transformer (16) is grounded; a second capacitor (17) connected to the first high-voltage bus (7); A second signal lamp (18) is connected in series with the second capacitor (17), and the second signal lamp (18) is grounded. 3. The switch-type 10kV temporary box-type substation device according to claim 1, characterized in that, the 10kV voltage change arrester circuit (2) includes: A second isolating switch (21) connected to the first high-voltage busbar (7); A first surge protector (22) connected in series with the second isolating switch (21), and the first surge protector (22) is grounded; A second fuse (23) connected in series with the second isolating switch (21); A second voltage transformer (24) connected in series with the second fuse (23). 4. The switch-type 10kV temporary box-type substation device according to claim 2, characterized in that, the 10kV incoming circuit breaker circuit (3) includes: a third isolating switch (31) connected to the first high-voltage busbar (7); a first circuit breaker (32) connected in series with the third isolating switch (31); A fourth isolating switch (33) connected in series with the first circuit breaker (32), and the fourth isolating switch (33) is grounded; A second current transformer (34) connected in series with the first circuit breaker (32), and the second current transformer (34) is connected to the second high-voltage busbar (8); A third capacitor (35) connected in series with the second current transformer (34); A third signal lamp (36) connected in series with the third capacitor (35), and the third signal lamp (36) is grounded; Further, the first circuit breaker (32) in the 10kV incoming circuit breaker circuit (3) is a vacuum circuit breaker, which is connected to the first isolation switch (12), the third isolation switch (31) and the first isolation switch (31) respectively. Electrical interlocking between the four isolating switches (33). 5. The switch-type 10kV temporary box-type substation device according to claim 1, characterized in that the lead circuit (4) includes: a fourth capacitor (41) connected to the second high voltage busbar (8); A fourth signal lamp (42) connected in series with the fourth capacitor (41), and the fourth signal lamp (42) is grounded. 6. The switch-type 10kV temporary box-type substation device according to claim 1, characterized in that, the outlet circuit (5) includes: a fifth isolating switch (51) connected to the second high-voltage busbar (8); A second circuit breaker (52) connected in series with the fifth isolating switch (51); A third current transformer (57) connected in series with the second circuit breaker (52); The sixth isolation switch (53), the fifth capacitor (54) and the second surge protector (56) respectively connected to the third current transformer (57), and the sixth isolation switch (53 ) and the second surge protector (56) are respectively grounded; A fifth signal lamp (55) connected in series with the fifth capacitor (54), and the fifth signal lamp (55) is grounded; Further, the second circuit breaker (52) is a vacuum circuit breaker, which is electrically interlocked with the fifth isolating switch (51).