CN211151619U

CN211151619U - Box transformer substation measurement and control protection device

Info

Publication number: CN211151619U
Application number: CN202020042453.1U
Authority: CN
Inventors: 沈文胜
Original assignee: Nanjing Nanzi Sichuang Electric Co ltd
Current assignee: Nanjing Nanzi Sichuang Electric Co ltd
Priority date: 2020-01-09
Filing date: 2020-01-09
Publication date: 2020-07-31
Anticipated expiration: 2030-01-09

Abstract

The utility model relates to a box transformer substation measurement and control protection device, which belongs to the field of intelligent box transformer substation measurement and control units; a case becomes observes and controls protection device includes: the system comprises an alternating current-direct current loop module, an input-output module and a serial port communication module; the alternating current-direct current loop module comprises an alternating current input loop, a power circuit and an alternating voltage input loop; the open-in and open-out module comprises a first strong current open-in circuit, a second strong current open-in circuit, a first temperature direct current input loop, a second temperature direct current input loop and a third temperature direct current input loop; the utility model adopts a 32-bit high-performance embedded microcomputer processor, a large-capacity RAM and a large-capacity Flash, high running speed and high sampling precision; the device can realize two-section type current protection, zero sequence current protection, low voltage protection, overvoltage protection, TV disconnection detection alarm and the like, and meanwhile, through optimized design, the reliability and stability of the device are greatly improved, and the device is more suitable for working occasions with severe operating environments, such as wind power plants, photovoltaic power stations and the like.

Description

Box transformer substation measurement and control protection device

Technical Field

The utility model relates to a case becomes observes and controls protection device belongs to intelligence case and becomes observing and controlling unit field.

Background

The NSC411U box transformer substation measurement and control protection device well solves the problems of monitoring, protection and control of a wind power plant and a box transformer substation of a photovoltaic power station, is particularly suitable for remote management and automatic monitoring of all information of the box transformer substation, can realize four remote functions of remote measurement, remote signaling, remote control, remote regulation and the like of the box transformer substation through remote scheduling, and meets the operation management mode of 'unattended' of the wind power plant and the photovoltaic power station.

The device has multiple functions of protection, measurement and control, metering, communication management, a ring network switch and the like, can be installed in a screen-assembling manner, and can also be installed in place of a switch cabinet; the device can realize the access of other intelligent equipment and the forwarding of information, and a communication protocol is expandable and configurable; the box transformer substation measurement and control protection device in the prior art still has the following problems in work:

1. the box transformer substation measurement and control protection device cannot work in severe occasions such as a wind power plant, a photovoltaic power station and the like;

2. the self-protection capability of the box transformer substation measurement and control protection device is poor, so that the working efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the box transformer substation measurement and control protection device is provided, and the problems are solved.

The technical scheme is as follows: a box transformer substation measurement and control protection device comprises: the system comprises an alternating current-direct current loop module, an input-output module and a serial port communication module; the alternating current-direct current loop module comprises an alternating current input loop, a power circuit and an alternating voltage input loop; the switch-in/switch-out module comprises a first strong current switch-in circuit, a second strong current switch-in circuit, a first temperature DC input circuit, a second temperature DC input circuit and a third temperature DC input circuit

In a further embodiment, the alternating current input loop comprises a mutual inductor 1H, a mutual inductor 2H, a mutual inductor IO and a box transformer measurement and control protection device 1n, a 1n2X pin of the box transformer measurement and control protection device 1n is connected with one end of a terminal 1D: 1, the other end of the terminal 1D: 1 is connected with an A end of the mutual inductor 1H, a 1n2X pin of the box transformer measurement and control protection device 1n is connected with one end of a terminal 1D: 2, the other end of the terminal 1D: 2 is connected with a B end of the mutual inductor 1H, a 1n2X pin of the box transformer measurement and control protection device 1n is connected with one end of a terminal 1D: 3, the other end of the terminal 1D: 3 is connected with a C end of the mutual inductor 1H, a 1n2X pin of the box transformer protection device 1n is connected with one end of a terminal 1D: 5, a 1n2X pin of the box transformer measurement and control protection device 1D terminal 1D: 2N is connected with a ground terminal 1D, a 1D terminal of a box transformer 1H: 2I, a box transformer 1D 2I, a 1D 2I pin of a 1D 2I, a 1D 2I 1H, a 2I 1D 2I 1H, a 2I 2.

In a further embodiment, the power supply circuit comprises a box transformer substation measurement and control protection device 1n, an air circuit breaker 1DK1 and an air circuit breaker 1DK 2; the 1n3X4 pin and the terminal ID2 of the box transformer substation measurement and control protection device 1n are as follows: 2, the terminal ID 2: 2 and the terminal ID 2: 1, the terminal ID 2: the other end of 1 with air circuit breaker 1DK 1's No. 2 pin is connected, 1n3X7 pin and terminal ID2 of case becomes observing and controling protection device 1 n: 6, the terminal ID 2: the other end of 6 and the terminal ID 2: 5, the terminal ID 2: the other end of the 5 is connected with a No. 4 pin of the air circuit breaker 1DK 1; the terminal ID 2: 9 is connected to pin No. 2 of the air circuit breaker 1DK2, and the terminal ID 2: one end of the pin 15 is connected to the pin 4 of the air circuit breaker 1DK 2; pin 1 and terminal GD of air circuit breaker 1DK 1: 1 connection, pin No. 3 of the air circuit breaker 1DK1 and terminal GD: 6, pin 1 of the air circuit breaker 1DK2 and terminal GD: 2 connection, pin No. 3 of the air circuit breaker 1DK2 and terminal GD: and 7, the power circuit comprises a device power supply and an input power supply and controls different circuits to supply power.

In a further embodiment, the ac voltage input circuit comprises: the box transformer substation measurement and control protection device 1n, the air circuit breaker 1ZKK1 and the air circuit breaker 1ZKK 2; wherein 1n1X1 pin of case becomes observing and controling protection device 1n with air circuit breaker 1ZKK 1's No. 2 pins are connected, air circuit breaker 1ZKK 1's No. 1 pin and terminal 1D 1: 21, the 1n1X3 pin of case becomes observing and controling protection device 1n with No. 4 pins of air circuit breaker 1ZKK1 are connected, No. 3 pins and terminal 1D1 of air circuit breaker 1ZKK 1: 22, the 1n1X5 pin of case becomes observing and controling protection device 1n with No. 6 pins of air circuit breaker 1ZKK1 are connected, No. 5 pins and terminal 1D1 of air circuit breaker 1ZKK 1: 23, a 1n1X7 pin of the box transformer substation measurement and control protection device 1n is connected with a terminal 1D 1: 24 connection; 1n1X9 pin of case becomes observing and controling protection device 1n with air circuit breaker 1ZKK 2's No. 2 pins are connected, air circuit breaker 1ZKK 2's No. 1 pin and terminal 1D 1: 26, the 1n1X11 pin of case becomes observing and controling protection device 1n with No. 4 pins of air circuit breaker 1ZKK2 are connected, No. 3 pins and the terminal 1D1 of air circuit breaker 1ZKK 2: 27, the 1n1X13 pin of case becomes observing and controling protection device 1n with No. 6 pins of air circuit breaker 1ZKK2 are connected, No. 5 pins and terminal 1D1 of air circuit breaker 1ZKK 2: 28, and pins 1n1X15 of the box transformer substation measurement and control protection device 1n are connected with terminals 1D 1: 2, the alternating voltage input loop is used for measuring the input current.

In a further embodiment, the first strong current switching circuit includes: the box transformer substation measurement and control protection device 1n and the switch S1; 1n5X1 pin and terminal 1D4 of box transformer substation measurement and control protection device 1 n: 1, and the terminal 1D 4: the other end of 1 is connected with No. 1 pin of switch S1, 1n5X2 pin and terminal 1D4 of case and transformer substation measurement and control protection device 1 n: 2, and the terminal 1D 4: the other end of 2 is connected with pin 3 of the switch S1, and pin 1n5X3 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 3, and the terminal 1D 4: the other end of 3 is connected with pin 5 of switch S1, the 1n5X4 pin and the terminal 1D4 of case and transformer substation measurement and control protection device 1 n: 4, and the terminal 1D 4: 4, the other end of the switch is connected with a pin 7 of the switch S1, and a pin 1n5X5 of the box transformer substation measurement and control protection device 1n is connected with a terminal 1D 4: 5, and the terminal 1D 4: the other end of 5 is connected with pin 9 of the switch S1, and pin 1n5X6 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 6, and the terminal 1D 4: the other end of 6 is connected with pin 11 of the switch S1, and pin 1n5X7 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 7, and the terminal 1D 4: the other end of 7 is connected with pin 13 of the switch S1, and pin 1n5X8 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 8, and the terminal 1D 4: the other end of 8 is connected with No. 15 pin of switch S1, 1n5X9 pin and terminal 1D4 of case and transformer substation measurement and control protection device 1 n: 9, and the terminal 1D 4: the other end of 9 is connected with pin 17 of the switch S1, and pin 1n5X10 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 10, and the terminal 1D 4: the other end of the 10 is connected with a pin 19 of the switch S1, and a pin 1n5X11 of the box transformer substation measurement and control protection device 1n is connected with a terminal 1D 4: 11, and the terminal 1D 4: the other end of 11 is connected with pin 21 of the switch S1, and pin 1n5X12 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 12, the terminal 1D 4: 12, the other end of the switch S1 is connected to pin 23, and pin 1n5X13 of the box transformer substation measurement and control protection device 1n is connected to terminal 1D 4: 13, and the terminal 1D 4: the other end of 13 is connected with pin 25 of the switch S1, and pin 1n5X15 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 14, and the terminal 1D 4: the other end of 14 is connected with pin 27 of the switch S1, and pin 1n5X16 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 15, and the terminal 1D 4: 15 is connected with pin 29 of the switch S1, and pin 1n5X14 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 2: 18, the 1n5X18 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 2: 19, and the terminal 1D 2: 19 at the other end of the terminal 1D 2: 18, and the terminal 1D 2: the first high-voltage switch-in circuit 11 is connected with the pin 2, the pin 4, the pin 6, the pin 8, the pin 10, the pin 12, the pin 14, the pin 16, the pin 18, the pin 20, the pin 22, the pin 24, the pin 26, the pin 28 and the pin 30 of the switch S1, and the first high-voltage switch-in circuit is used for comprising a circuit.

In a further embodiment, the second strong current switching circuit includes a box transformer substation measurement and control protection device 1n, a switch S2; wherein 1n7X1 pin and terminal 1D5 of box transformer substation measurement and control protection device 1 n: 1, and the terminal 1D 5: the other end of 1 is connected with No. 1 pin of switch S2, 1n7X2 pin and terminal 1D5 of case and transformer substation measurement and control protection device 1 n: 2, and the terminal 1D 5: the other end of 2 is connected with pin 3 of the switch S2, and pin 1n7X3 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 3, and the terminal 1D 5: the other end of 3 is connected with pin 5 of the switch S2, and pin 1n7X4 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 4, and the terminal 1D 5: 4, the other end of the switch is connected with a pin 7 of the switch S2, and a pin 1n7X5 of the box transformer substation measurement and control protection device 1n is connected with a terminal 1D 5: 5, and the terminal 1D 5: the other end of 5 is connected with pin 9 of the switch S2, and pin 1n7X6 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 6, and the terminal 1D 5: the other end of 6 is connected with pin 11 of the switch S2, and pin 1n7X7 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 7, and the terminal 1D 5: the other end of 7 is connected with pin 13 of the switch S2, and pin 1n7X8 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 8, and the terminal 1D 5: the other end of 8 is connected with No. 15 pin of switch S2, the 1n7X9 pin and the terminal 1D5 of case and transformer substation measurement and control protection device 1 n: 9, and the terminal 1D 5: the other end of 9 is connected with pin 17 of the switch S1, and pin 1n7X10 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 10, and the terminal 1D 5: the other end of the 10 is connected with a pin 19 of the switch S2, and a pin 1n7X11 of the box transformer substation measurement and control protection device 1n is connected with a terminal 1D 5: 11, and the terminal 1D 5: the other end of 11 is connected with pin 21 of the switch S2, and pin 1n7X12 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 12, the terminal 1D 5: 12, the other end of the switch S2 is connected to pin 23, and pin 1n7X13 of the box transformer substation measurement and control protection device 1n is connected to terminal 1D 5: 13, and the terminal 1D 5: the other end of 13 is connected with pin 25 of the switch S2, and pin 1n7X14 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 14, and the terminal 1D 5: the other end of 14 is connected with pin 27 of the switch S2, and pin 1n7X15 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 15, and the terminal 1D 5: 15 is connected with pin 29 of the switch S2, and pin 1n7X16 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 16, and the terminal 1D 5: 16 is connected to pin 31 of the switch S2, and the terminal 1D 2: 12 and No. 2 pin, No. 4 pin, No. 6 pin, No. 8 pin, No. 10 pin, No. 12 pin, No. 14 pin, No. 16 pin, No. 18 pin, No. 20 pin, No. 22 pin, No. 24 pin, No. 26 pin, No. 28 pin, No. 30 pin, No. 32 pin of switch S2 are connected, 1n7X18 pin and terminal 1D2 of case and transformer measurement and control protection device 1 n: 20 are connected.

In a further embodiment, the first temperature direct current input circuit comprises a box transformer substation measurement and control protection device 1n, a fuse 1P, a fuse 1 2P and a fuse 1P, wherein a pin 1n8X of the box transformer substation measurement and control protection device 1n is connected with a terminal 1D: 1, a pin 1n8X of the box transformer substation measurement and control protection device 1n is connected with a pin 1 of the fuse 1P, a pin 2 of the fuse 1P is connected with a terminal 1D: 3, a pin 1n8X of the box transformer substation measurement and control protection device 1n is connected with a terminal 1D: 5, a pin 1n8X of the box transformer substation measurement and control protection device 1n is connected with a pin 1 of the fuse 1P 6P, a pin 2 of the fuse 1P is connected with a terminal 1D: 7, a pin 1n8X of the box transformer substation measurement and control protection device 1n is connected with a terminal 1D: 9, a pin 1n8X of the fuse 1n is connected with a pin 1P, a pin 1N of the fuse 1P is connected with a pin 1P, and a pin 1P 8X of the fuse 1P 1.

In a further embodiment, the second temperature dc input circuit includes a box transformer substation measurement and control protection device 1n, a resistor R1; wherein 1n9X5 pin and terminal 1D6 of box transformer substation measurement and control protection device 1 n: 1, the 1n9X6 pin and the terminal 1D6 of the box transformer substation measurement and control protection device 1 n: 2, the 1n9X7 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 6: 3, the 1n9X8 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 6: 4, the 1n9X9 pin and the terminal 1D6 of the box transformer substation measurement and control protection device 1 n: 5, the 1n9X10 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 6: 6, the 1n9X11 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 6: 7, pins 1n9X12 of the box transformer substation measurement and control protection device 1n are connected with a terminal 1D 6: 8, and pins 1n9X13 of the box transformer substation measurement and control protection device 1n are connected with a terminal 1D 6: 9, and the 1n9X14 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 6: 10, one end of the resistor R1 is connected to the terminal 1D 6: 3 and the terminal 1D 6: 4, the other end of the resistor R1, and the terminal 1D 6: 1 and the terminal 1D 6: 2 are connected at the other end.

In a further embodiment, the third temperature dc input circuit includes a box transformer substation measurement and control protection device 1n, a terminal 1D 2: 23. terminal 1D 2: 2; wherein 1n6X1 pin of box transformer substation measurement and control protection device 1n and terminal 1D 2: 23, a pin 1n6X2 of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 2: 24 are connected.

In a further embodiment, the serial port communication module comprises a box transformer substation measurement and control protection device 1n and a terminal; wherein 1n10X1 pin of box transformer substation measurement and control protection device 1n and terminal 1D 7: 1, the 1n10X2 pin of the box transformer substation measurement and control protection device 1n and the terminal 1D 7: 2, the 1n10X3 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 3, the 1n10X4 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 4, the 1n10X5 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 5, the 1n10X6 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 6, the 1n10X7 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 7, the 1n10X8 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 8, the 1n10X9 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 9, the 1n10X10 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 10, and the 1n10X11 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 11, the 1n10X12 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 12, and a 1n10X13 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 13, the 1n10X14 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 14 are connected.

Has the advantages that: the utility model adopts a 32-bit high-performance embedded microcomputer processor, a large-capacity RAM and a large-capacity Flash, high running speed and high sampling precision; two-section current protection, zero sequence current protection, low voltage protection, overvoltage protection, TV disconnection detection alarm and the like can be realized; the method comprises the following steps of alarming when the oil level of a transformer is low, alarming when the oil temperature of the transformer is high, tripping at ultra-high temperature of the oil temperature of the transformer, alarming when light gas exists, tripping when heavy gas exists, acting of a pressure release valve, detecting voltage disconnection, detecting a direct current (temperature) first section, detecting a direct current (temperature) second section and the like; meanwhile, through the optimized design, the reliability and the stability of the device are greatly improved, and the device is more suitable for working occasions with extremely severe operating environments such as wind power plants, photovoltaic power stations and the like.

Drawings

Fig. 1 is a circuit diagram of an ac current input circuit according to the present invention.

Fig. 2 is a power supply circuit diagram of the present invention.

Fig. 3 is a circuit diagram of an ac voltage input circuit according to the present invention.

Fig. 4 is a first strong current open/close circuit diagram of the present invention.

Fig. 5 is a second strong current open/close circuit diagram according to the present invention.

Fig. 6 is a circuit diagram of a first temperature dc input circuit according to the present invention.

Fig. 7 is a circuit diagram of a second temperature dc input circuit according to the present invention.

Fig. 8 is a circuit diagram of a third temperature dc input circuit according to the present invention.

Fig. 9 is a circuit diagram of the serial communication module of the present invention.

Detailed Description

A box transformer substation measurement and control protection device comprises: the system comprises an alternating current-direct current loop module, an input-output module and a serial port communication module; the alternating current-direct current loop module comprises an alternating current input loop, a power circuit and an alternating voltage input loop; the open-in and open-out module comprises a first strong current open-in circuit, a second strong current open-in circuit, a first temperature direct current input loop, a second temperature direct current input loop and a third temperature direct current input loop.

The alternating current input circuit comprises a transformer 1L H, a transformer 2L H, a transformer IO and a box transformer measurement and control protection device 1 n.

The power supply circuit includes: the device comprises a variable measurement and control protection device 1n, an air circuit breaker 1DK1 and an air circuit breaker 1DK 2.

The alternating voltage input circuit includes: the box transformer substation measurement and control protection device comprises a box transformer substation measurement and control protection device 1n, an air circuit breaker 1ZKK1 and an air circuit breaker 1ZKK 2.

The first strong current switching circuit includes: the box transformer substation measurement and control protection device 1n and the switch S1.

The second strong current switching circuit includes: the box transformer substation measurement and control protection device 1n and the switch S2.

The first temperature direct current input circuit comprises a box transformer substation measurement and control protection device 1n, a fuse 1L P1, a fuse 1L P2, a fuse 1L P3, a fuse 1L P4, a fuse 1L P5 and a fuse 1L P6.

The second temperature direct current input circuit comprises: the variable measurement and control protection device 1n and the resistor R1.

The third temperature dc input circuit includes: become measurement and control protection device 1n, terminal 1D 2: 23. terminal 1D 2: 2.

the serial port communication module includes: become measurement and control protection device 1n, a plurality of terminal.

As shown in FIG. 1, a 1n2X pin of a box transformer substation measurement and control protection device 1n is connected with one end of a terminal 1D: 1, the other end of the terminal 1D: 1 is connected with an A end of a transformer 1H, a 1n2X pin of the box transformer substation measurement and control protection device 1n is connected with one end of a terminal 1D: 2, the other end of the terminal 1D: 2 is connected with a B end of the transformer 1H, a 1n2X pin of the box transformer measurement and control protection device 1n is connected with one end of a terminal 1D: 3, the other end of the terminal 1D: 3 is connected with a C end of the transformer 1H, a 1n2X pin of the box transformer substation measurement and control protection device 1n is connected with one end of a terminal 1D: 4, a 1n2X pin of the box transformer substation measurement and control protection device 1n is connected with one end of a terminal 1D: 6, one end of the box transformer substation measurement and control protection device 1D 2X pin of the other end of the box transformer 1H: 6 is connected with a 1D terminal 1D: 1D, a 1D terminal of the other end of the box transformer 1H, a 1D terminal is connected with a 1D terminal 1H, a 1D terminal of the other end of the box transformer 1H, a 1D terminal 1H terminal is connected with a 1D terminal 1H, a 1H terminal 1H 2I 1H 2I 1H 2I 1N 2I 1H 1N 2I 1H 2I 1H 2I 1.

As shown in fig. 2, the 1n3X4 pin and the terminal ID2 of the box transformer substation measurement and control protection device 1 n: 2, the terminal ID 2: 2 and the terminal ID 2: 1, the terminal ID 2: the other end of 1 with air circuit breaker 1DK 1's No. 2 pin is connected, 1n3X7 pin and terminal ID2 of case becomes observing and controling protection device 1 n: 6, the terminal ID 2: the other end of 6 and the terminal ID 2: 5, the terminal ID 2: the other end of the 5 is connected with a No. 4 pin of the air circuit breaker 1DK 1; the terminal ID 2: 9 is connected to pin No. 2 of the air circuit breaker 1DK2, and the terminal ID 2: one end of the pin 15 is connected to the pin 4 of the air circuit breaker 1DK 2; pin 1 and terminal GD of air circuit breaker 1DK 1: 1 connection, pin No. 3 of the air circuit breaker 1DK1 and terminal GD: 6, pin 1 of the air circuit breaker 1DK2 and terminal GD: 2 connection, pin No. 3 of the air circuit breaker 1DK2 and terminal GD: 7 are connected.

As shown in fig. 3, the 1n1X1 pin of the box transformer substation measurement and control protection device 1n is connected to the No. 2 pin of the air circuit breaker 1ZKK1, and the No. 1 pin of the air circuit breaker 1ZKK1 is connected to the terminal 1D 1: 21, the 1n1X3 pin of case becomes observing and controling protection device 1n with No. 4 pins of air circuit breaker 1ZKK1 are connected, No. 3 pins and terminal 1D1 of air circuit breaker 1ZKK 1: 22, the 1n1X5 pin of case becomes observing and controling protection device 1n with No. 6 pins of air circuit breaker 1ZKK1 are connected, No. 5 pins and terminal 1D1 of air circuit breaker 1ZKK 1: 23, a 1n1X7 pin of the box transformer substation measurement and control protection device 1n is connected with a terminal 1D 1: 24 connection; 1n1X9 pin of case becomes observing and controling protection device 1n with air circuit breaker 1ZKK 2's No. 2 pins are connected, air circuit breaker 1ZKK 2's No. 1 pin and terminal 1D 1: 26, the 1n1X11 pin of case becomes observing and controling protection device 1n with No. 4 pins of air circuit breaker 1ZKK2 are connected, No. 3 pins and the terminal 1D1 of air circuit breaker 1ZKK 2: 27, the 1n1X13 pin of case becomes observing and controling protection device 1n with No. 6 pins of air circuit breaker 1ZKK2 are connected, No. 5 pins and terminal 1D1 of air circuit breaker 1ZKK 2: 28, and pins 1n1X15 of the box transformer substation measurement and control protection device 1n are connected with terminals 1D 1: 2 are connected.

As shown in fig. 4, the 1n5X1 pin and the terminal 1D4 of the box transformer substation measurement and control protection device 1 n: 1, and the terminal 1D 4: the other end of 1 is connected with No. 1 pin of switch S1, 1n5X2 pin and terminal 1D4 of case and transformer substation measurement and control protection device 1 n: 2, and the terminal 1D 4: the other end of 2 is connected with pin 3 of the switch S1, and pin 1n5X3 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 3, and the terminal 1D 4: the other end of 3 is connected with pin 5 of switch S1, the 1n5X4 pin and the terminal 1D4 of case and transformer substation measurement and control protection device 1 n: 4, and the terminal 1D 4: 4, the other end of the switch is connected with a pin 7 of the switch S1, and a pin 1n5X5 of the box transformer substation measurement and control protection device 1n is connected with a terminal 1D 4: 5, and the terminal 1D 4: the other end of 5 is connected with pin 9 of the switch S1, and pin 1n5X6 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 6, and the terminal 1D 4: the other end of 6 is connected with pin 11 of the switch S1, and pin 1n5X7 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 7, and the terminal 1D 4: the other end of 7 is connected with pin 13 of the switch S1, and pin 1n5X8 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 8, and the terminal 1D 4: the other end of 8 is connected with No. 15 pin of switch S1, 1n5X9 pin and terminal 1D4 of case and transformer substation measurement and control protection device 1 n: 9, and the terminal 1D 4: the other end of 9 is connected with pin 17 of the switch S1, and pin 1n5X10 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 10, and the terminal 1D 4: the other end of the 10 is connected with a pin 19 of the switch S1, and a pin 1n5X11 of the box transformer substation measurement and control protection device 1n is connected with a terminal 1D 4: 11, and the terminal 1D 4: the other end of 11 is connected with pin 21 of the switch S1, and pin 1n5X12 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 12, the terminal 1D 4: 12, the other end of the switch S1 is connected to pin 23, and pin 1n5X13 of the box transformer substation measurement and control protection device 1n is connected to terminal 1D 4: 13, and the terminal 1D 4: the other end of 13 is connected with pin 25 of the switch S1, and pin 1n5X15 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 14, and the terminal 1D 4: the other end of 14 is connected with pin 27 of the switch S1, and pin 1n5X16 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 15, and the terminal 1D 4: 15 is connected with pin 29 of the switch S1, and pin 1n5X14 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 2: 18, the 1n5X18 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 2: 19, and the terminal 1D 2: 19 at the other end of the terminal 1D 2: 18, and the terminal 1D 2: the pin 11 is connected with the pin 2, the pin 4, the pin 6, the pin 8, the pin 10, the pin 12, the pin 14, the pin 16, the pin 18, the pin 20, the pin 22, the pin 24, the pin 26, the pin 28 and the pin 30 of the switch S1.

As shown in fig. 5, the 1n7X1 pin and the terminal 1D5 of the box transformer substation measurement and control protection device 1 n: 1, and the terminal 1D 5: the other end of 1 is connected with No. 1 pin of switch S2, 1n7X2 pin and terminal 1D5 of case and transformer substation measurement and control protection device 1 n: 2, and the terminal 1D 5: the other end of 2 is connected with pin 3 of the switch S2, and pin 1n7X3 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 3, and the terminal 1D 5: the other end of 3 is connected with pin 5 of the switch S2, and pin 1n7X4 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 4, and the terminal 1D 5: 4, the other end of the switch is connected with a pin 7 of the switch S2, and a pin 1n7X5 of the box transformer substation measurement and control protection device 1n is connected with a terminal 1D 5: 5, and the terminal 1D 5: the other end of 5 is connected with pin 9 of the switch S2, and pin 1n7X6 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 6, and the terminal 1D 5: the other end of 6 is connected with pin 11 of the switch S2, and pin 1n7X7 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 7, and the terminal 1D 5: the other end of 7 is connected with pin 13 of the switch S2, and pin 1n7X8 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 8, and the terminal 1D 5: the other end of 8 is connected with No. 15 pin of switch S2, the 1n7X9 pin and the terminal 1D5 of case and transformer substation measurement and control protection device 1 n: 9, and the terminal 1D 5: the other end of 9 is connected with pin 17 of the switch S1, and pin 1n7X10 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 10, and the terminal 1D 5: the other end of the 10 is connected with a pin 19 of the switch S2, and a pin 1n7X11 of the box transformer substation measurement and control protection device 1n is connected with a terminal 1D 5: 11, and the terminal 1D 5: the other end of 11 is connected with pin 21 of the switch S2, and pin 1n7X12 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 12, the terminal 1D 5: 12, the other end of the switch S2 is connected to pin 23, and pin 1n7X13 of the box transformer substation measurement and control protection device 1n is connected to terminal 1D 5: 13, and the terminal 1D 5: the other end of 13 is connected with pin 25 of the switch S2, and pin 1n7X14 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 14, and the terminal 1D 5: the other end of 14 is connected with pin 27 of the switch S2, and pin 1n7X15 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 15, and the terminal 1D 5: 15 is connected with pin 29 of the switch S2, and pin 1n7X16 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 16, and the terminal 1D 5: 16 is connected to pin 31 of the switch S2, and the terminal 1D 2: 12 and No. 2 pin, No. 4 pin, No. 6 pin, No. 8 pin, No. 10 pin, No. 12 pin, No. 14 pin, No. 16 pin, No. 18 pin, No. 20 pin, No. 22 pin, No. 24 pin, No. 26 pin, No. 28 pin, No. 30 pin, No. 32 pin of switch S2 are connected, 1n7X18 pin and terminal 1D2 of case and transformer measurement and control protection device 1 n: 20 are connected.

As shown in fig. 6, pins 1n8X1 of the box-type substation measurement and control protection device 1n are connected with terminals 1D 3: 1, pins 1n8X2 of the box-type substation measurement and control protection device 1n are connected with pins 1 of the fuse 1P 1L, pins 2 of the fuse 1P L are connected with terminals 1D L: 3, pins 1n8X L of the box-type substation measurement and control protection device 1n are connected with terminals 1D L: 5, pins 1n8X L of the box-type substation measurement and control protection device 1n are connected with pins 1 of the fuse 1P L, pins 2 of the fuse 1P L are connected with terminals 1D L: 7, pins 1n8X L of the box-type substation measurement and control protection device 1n are connected with pins 1D L: 9 of the fuse 1P L, pins 2 of the fuse 1P L are connected with terminals 1D L: 7 of the fuse 1P L, pins 1n8X L of the box-type substation measurement and control protection device 1n 72 are connected with terminals 361P L, pins 1P L of the box-type substation measurement and pins L, pins 1P L are connected with terminals 361P L, pins of the box-type measurement and pin L, pins of the box-type substation measurement and control protection device L, pins 1P L, pins of the box-type substation measurement and the box-type measurement and control protection device L are connected with terminals L, pins 1P L, pins of the box-type fuse 1P 361 n is connected with terminals L, pins 361P L, pins of the box-type measurement and the fuse 1D L, pins of the box-type measurement and the box-type terminal L, pins of the box-type terminal L, pins of the box-type substation measurement and the box-type measurement and control protection device L, pins of the box-type terminal L are connected with pins 361P L, pins of the fuse 1n L, the fuse 1n 361 n is connected with pins of the box-type measurement and the box-type measurement.

As shown in fig. 7, the 1n9X5 pin and the terminal 1D6 of the box transformer substation measurement and control protection device 1 n: 1, the 1n9X6 pin and the terminal 1D6 of the box transformer substation measurement and control protection device 1 n: 2, the 1n9X7 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 6: 3, the 1n9X8 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 6: 4, the 1n9X9 pin and the terminal 1D6 of the box transformer substation measurement and control protection device 1 n: 5, the 1n9X10 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 6: 6, the 1n9X11 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 6: 7, pins 1n9X12 of the box transformer substation measurement and control protection device 1n are connected with a terminal 1D 6: 8, and pins 1n9X13 of the box transformer substation measurement and control protection device 1n are connected with a terminal 1D 6: 9, and the 1n9X14 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 6: 10, one end of the resistor R1 is connected to the terminal 1D 6: 3 and the terminal 1D 6: 4, the other end of the resistor R1, and the terminal 1D 6: 1 and the terminal 1D 6: 2 are connected at the other end.

As shown in fig. 8, the 1n6X1 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 2: 23, a pin 1n6X2 of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 2: 24 are connected.

As shown in fig. 9, the 1n10X1 pin of the box transformer substation measurement and control protection device 1n and the terminal 1D 7: 1, the 1n10X2 pin of the box transformer substation measurement and control protection device 1n and the terminal 1D 7: 2, the 1n10X3 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 3, the 1n10X4 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 4, the 1n10X5 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 5, the 1n10X6 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 6, the 1n10X7 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 7, the 1n10X8 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 8, the 1n10X9 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 9, the 1n10X10 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 10, and the 1n10X11 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 11, the 1n10X12 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 12, and a 1n10X13 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 13, the 1n10X14 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 14 are connected.

The working principle is that when the device starts to work, a power supply is connected, insulation resistance values of circuits between an electrified part and a non-electrified part of the device and a shell and between circuits which are not electrically connected are measured by a megohmmeter with open-circuit voltage of 500V, under normal test atmospheric conditions, insulation resistance of each circuit at each grade is not less than 50M omega, under normal test atmospheric conditions, the device can bear 50Hz, a signal input terminal is 500V to ground voltage, other circuits are 2000V to ground voltage, a power frequency withstand voltage test lasts for 1 minute has no breakdown flashover and element damage, during a test, when voltage is applied to any tested circuit, other circuits are equipotentially interconnected and grounded, the device can bear a damp and heat test specified by GB/T7261 Chapter 20, the device can bear a damp and heat test specified by GB/T631, the maximum humidity 95% test time is constant damp and heat test, when the test time is 48 hours, when the test is carried out within 2 hours before the test is finished, a constant damp and heat test is carried out, the constant damp and heat test, the test is carried out, when the constant damp and heat test is carried out, the constant humidity test is carried out, the constant humidity test is not less than 1, the constant humidity test is not less than the constant humidity test, the constant humidity test is carried out, when the constant humidity test is carried out, the constant humidity test is carried out in the constant humidity test, the constant humidity test is carried out in 2, the constant humidity test is not less than the constant humidity test, the constant humidity test is carried out in 2, the constant humidity test, the constant temperature test of the constant humidity test device is carried out in the constant temperature test device, the constant humidity test of the constant temperature is carried out in the constant temperature test of the constant temperature test device is not less than.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be modified to perform various equivalent transformations, which all belong to the protection scope of the present invention.

Claims

1. The utility model provides a case becomes observes and controls protection device which characterized in that includes: the system comprises an alternating current-direct current loop module, an input-output module and a serial port communication module; the alternating current-direct current loop module comprises an alternating current input loop, a power circuit and an alternating voltage input loop;

the alternating current input loop comprises a mutual inductor 1H, a mutual inductor 2H, a mutual inductor IO and a box transformer measurement and control protection device 1n, a 1n2X pin of the box transformer measurement and control protection device 1n is connected with one end of a terminal 1D: 1, the other end of the terminal 1D: 1 is connected with an A end of the mutual inductor 1H, a 1n2X pin of the box transformer measurement and control protection device 1n is connected with one end of a terminal 1D: 2, the other end of the terminal 1D: 2 is connected with a B end of the mutual inductor 1H, a 1n2X pin of the box transformer measurement and control protection device 1n is connected with one end of a terminal 1D: 3, the other end of the terminal 1D: 3 is connected with a C end of the mutual inductor 1H, a 1n2X pin of the box transformer measurement and control protection device 1n is connected with one end of a terminal 1D: 4, a 1n2X pin of the box transformer measurement and control protection device 1D 2N is connected with a C end of a box transformer 1D: 6, a 1D terminal of the other end of the box transformer 1D, a 1D 2X pin of the other end of the box transformer 1H: 2I is connected with a 1D 2I 1H, a 1D 2I 1H, a 1D 2I 1H, a 1D 2I 1D 2I 2.

2. The box transformer substation measurement and control protection device according to claim 1, wherein the power circuit comprises a box transformer substation measurement and control protection device 1n, an air circuit breaker 1DK1, and an air circuit breaker 1DK 2; the 1n3X4 pin and the terminal ID2 of the box transformer substation measurement and control protection device 1n are as follows: 2, the terminal ID 2: 2 and the terminal ID 2: 1, the terminal ID 2: the other end of 1 with air circuit breaker 1DK 1's No. 2 pin is connected, 1n3X7 pin and terminal ID2 of case becomes observing and controling protection device 1 n: 6, the terminal ID 2: the other end of 6 and the terminal ID 2: 5, the terminal ID 2: the other end of the 5 is connected with a No. 4 pin of the air circuit breaker 1DK 1; the terminal ID 2: 9 is connected to pin No. 2 of the air circuit breaker 1DK2, and the terminal ID 2: one end of the pin 15 is connected to the pin 4 of the air circuit breaker 1DK 2; pin 1 and terminal GD of air circuit breaker 1DK 1: 1 connection, pin No. 3 of the air circuit breaker 1DK1 and terminal GD: 6, pin 1 of the air circuit breaker 1DK2 and terminal GD: 2 connection, pin No. 3 of the air circuit breaker 1DK2 and terminal GD: 7 are connected.

3. The box transformer substation measurement and control protection device according to claim 1, wherein the alternating voltage input loop comprises: the box transformer substation measurement and control protection device 1n, the air circuit breaker 1ZKK1 and the air circuit breaker 1ZKK 2; wherein 1n1X1 pin of case becomes observing and controling protection device 1n with air circuit breaker 1ZKK 1's No. 2 pins are connected, air circuit breaker 1ZKK 1's No. 1 pin and terminal 1D 1: 21, the 1n1X3 pin of case becomes observing and controling protection device 1n with No. 4 pins of air circuit breaker 1ZKK1 are connected, No. 3 pins and terminal 1D1 of air circuit breaker 1ZKK 1: 22, the 1n1X5 pin of case becomes observing and controling protection device 1n with No. 6 pins of air circuit breaker 1ZKK1 are connected, No. 5 pins and terminal 1D1 of air circuit breaker 1ZKK 1: 23, a 1n1X7 pin of the box transformer substation measurement and control protection device 1n is connected with a terminal 1D 1: 24 connection; 1n1X9 pin of case becomes observing and controling protection device 1n with air circuit breaker 1ZKK 2's No. 2 pins are connected, air circuit breaker 1ZKK 2's No. 1 pin and terminal 1D 1: 26, the 1n1X11 pin of case becomes observing and controling protection device 1n with No. 4 pins of air circuit breaker 1ZKK2 are connected, No. 3 pins and the terminal 1D1 of air circuit breaker 1ZKK 2: 27, the 1n1X13 pin of case becomes observing and controling protection device 1n with No. 6 pins of air circuit breaker 1ZKK2 are connected, No. 5 pins and terminal 1D1 of air circuit breaker 1ZKK 2: 28, and pins 1n1X15 of the box transformer substation measurement and control protection device 1n are connected with terminals 1D 1: 2 are connected.

4. The box transformer substation measurement and control protection device according to claim 1, wherein the opening module comprises: the first temperature direct current input circuit is connected with the first temperature direct current input circuit;

wherein the first strong current switching circuit includes: the box transformer substation measurement and control protection device 1n and the switch S1; 1n5X1 pin and terminal 1D4 of box transformer substation measurement and control protection device 1 n: 1, and the terminal 1D 4: the other end of 1 is connected with No. 1 pin of switch S1, 1n5X2 pin and terminal 1D4 of case and transformer substation measurement and control protection device 1 n: 2, and the terminal 1D 4: the other end of 2 is connected with pin 3 of the switch S1, and pin 1n5X3 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 3, and the terminal 1D 4: the other end of 3 is connected with pin 5 of switch S1, the 1n5X4 pin and the terminal 1D4 of case and transformer substation measurement and control protection device 1 n: 4, and the terminal 1D 4: 4, the other end of the switch is connected with a pin 7 of the switch S1, and a pin 1n5X5 of the box transformer substation measurement and control protection device 1n is connected with a terminal 1D 4: 5, and the terminal 1D 4: the other end of 5 is connected with pin 9 of the switch S1, and pin 1n5X6 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 6, and the terminal 1D 4: the other end of 6 is connected with pin 11 of the switch S1, and pin 1n5X7 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 7, and the terminal 1D 4: the other end of 7 is connected with pin 13 of the switch S1, and pin 1n5X8 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 8, and the terminal 1D 4: the other end of 8 is connected with No. 15 pin of switch S1, 1n5X9 pin and terminal 1D4 of case and transformer substation measurement and control protection device 1 n: 9, and the terminal 1D 4: the other end of 9 is connected with pin 17 of the switch S1, and pin 1n5X10 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 10, and the terminal 1D 4: the other end of the 10 is connected with a pin 19 of the switch S1, and a pin 1n5X11 of the box transformer substation measurement and control protection device 1n is connected with a terminal 1D 4: 11, and the terminal 1D 4: the other end of 11 is connected with pin 21 of the switch S1, and pin 1n5X12 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 12, the terminal 1D 4: 12, the other end of the switch S1 is connected to pin 23, and pin 1n5X13 of the box transformer substation measurement and control protection device 1n is connected to terminal 1D 4: 13, and the terminal 1D 4: the other end of 13 is connected with pin 25 of the switch S1, and pin 1n5X15 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 14, and the terminal 1D 4: the other end of 14 is connected with pin 27 of the switch S1, and pin 1n5X16 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 4: 15, and the terminal 1D 4: 15 is connected with pin 29 of the switch S1, and pin 1n5X14 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 2: 18, the 1n5X18 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 2: 19, and the terminal 1D 2: 19 at the other end of the terminal 1D 2: 18, and the terminal 1D 2: the pin 11 is connected with the pin 2, the pin 4, the pin 6, the pin 8, the pin 10, the pin 12, the pin 14, the pin 16, the pin 18, the pin 20, the pin 22, the pin 24, the pin 26, the pin 28 and the pin 30 of the switch S1.

5. The box transformer substation measurement and control protection device according to claim 4, wherein the second strong current switching-in circuit comprises a box transformer substation measurement and control protection device 1n, a switch S2; wherein 1n7X1 pin and terminal 1D5 of box transformer substation measurement and control protection device 1 n: 1, and the terminal 1D 5: the other end of 1 is connected with No. 1 pin of switch S2, 1n7X2 pin and terminal 1D5 of case and transformer substation measurement and control protection device 1 n: 2, and the terminal 1D 5: the other end of 2 is connected with pin 3 of the switch S2, and pin 1n7X3 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 3, and the terminal 1D 5: the other end of 3 is connected with pin 5 of the switch S2, and pin 1n7X4 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 4, and the terminal 1D 5: 4, the other end of the switch is connected with a pin 7 of the switch S2, and a pin 1n7X5 of the box transformer substation measurement and control protection device 1n is connected with a terminal 1D 5: 5, and the terminal 1D 5: the other end of 5 is connected with pin 9 of the switch S2, and pin 1n7X6 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 6, and the terminal 1D 5: the other end of 6 is connected with pin 11 of the switch S2, and pin 1n7X7 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 7, and the terminal 1D 5: the other end of 7 is connected with pin 13 of the switch S2, and pin 1n7X8 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 8, and the terminal 1D 5: the other end of 8 is connected with No. 15 pin of switch S2, the 1n7X9 pin and the terminal 1D5 of case and transformer substation measurement and control protection device 1 n: 9, and the terminal 1D 5: the other end of 9 is connected with pin 17 of the switch S1, and pin 1n7X10 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 10, and the terminal 1D 5: the other end of the 10 is connected with a pin 19 of the switch S2, and a pin 1n7X11 of the box transformer substation measurement and control protection device 1n is connected with a terminal 1D 5: 11, and the terminal 1D 5: the other end of 11 is connected with pin 21 of the switch S2, and pin 1n7X12 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 12, the terminal 1D 5: 12, the other end of the switch S2 is connected to pin 23, and pin 1n7X13 of the box transformer substation measurement and control protection device 1n is connected to terminal 1D 5: 13, and the terminal 1D 5: the other end of 13 is connected with pin 25 of the switch S2, and pin 1n7X14 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 14, and the terminal 1D 5: the other end of 14 is connected with pin 27 of the switch S2, and pin 1n7X15 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 15, and the terminal 1D 5: 15 is connected with pin 29 of the switch S2, and pin 1n7X16 of the box transformer substation measurement and control protection device 1n is connected with terminal 1D 5: 16, and the terminal 1D 5: 16 is connected to pin 31 of the switch S2, and the terminal 1D 2: 12 and No. 2 pin, No. 4 pin, No. 6 pin, No. 8 pin, No. 10 pin, No. 12 pin, No. 14 pin, No. 16 pin, No. 18 pin, No. 20 pin, No. 22 pin, No. 24 pin, No. 26 pin, No. 28 pin, No. 30 pin, No. 32 pin of switch S2 are connected, 1n7X18 pin and terminal 1D2 of case and transformer measurement and control protection device 1 n: 20 are connected.

6. The box transformer substation measurement and control protection device is characterized in that the first temperature direct current input circuit comprises a box transformer substation measurement and control protection device 1n, a fuse 1P and a fuse 1P 3P, wherein a pin 1n8X of the box transformer substation measurement and control protection device 1n is connected with a terminal 1D: 1, a pin 1n8X of the box transformer substation measurement and control protection device 1n is connected with a pin 1 of the fuse 1P, a pin 2 of the fuse 1P is connected with a terminal 1D: 3, a pin 1n8X of the box transformer substation measurement and control protection device 1n is connected with a terminal 1D: 5, a pin 1n8X of the box transformer substation measurement and control protection device 1n is connected with a pin 1 of the fuse 6P, a pin 2 of the fuse 1P is connected with a terminal 1D: 7, a pin 1n8X of the box transformer substation measurement and control protection device 1n is connected with a terminal 1D: 9, a pin 1n8X of the fuse is connected with a pin 1P, a pin 1N8X of the fuse 1 is connected with a pin 1P, a pin 1N of the box transformer substation measurement and a pin 1N8X of the fuse 1P is connected with a measurement and a pin 1P 1.

7. The box transformer substation measurement and control protection device according to claim 4, wherein the second temperature direct current input loop comprises a box transformer substation measurement and control protection device 1n and a resistor R1; wherein 1n9X5 pin and terminal 1D6 of box transformer substation measurement and control protection device 1 n: 1, the 1n9X6 pin and the terminal 1D6 of the box transformer substation measurement and control protection device 1 n: 2, the 1n9X7 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 6: 3, the 1n9X8 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 6: 4, the 1n9X9 pin and the terminal 1D6 of the box transformer substation measurement and control protection device 1 n: 5, the 1n9X10 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 6: 6, the 1n9X11 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 6: 7, pins 1n9X12 of the box transformer substation measurement and control protection device 1n are connected with a terminal 1D 6: 8, and pins 1n9X13 of the box transformer substation measurement and control protection device 1n are connected with a terminal 1D 6: 9, and the 1n9X14 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 6: 10, one end of the resistor R1 is connected to the terminal 1D 6: 3 and the terminal 1D 6: 4, the other end of the resistor R1, and the terminal 1D 6: 1 and the terminal 1D 6: 2 are connected at the other end.

8. The box transformer substation measurement and control protection device according to claim 4, wherein the third temperature direct current input loop comprises a box transformer substation measurement and control protection device 1n, and a terminal 1D 2: 23. terminal 1D 2: 2; wherein 1n6X1 pin of box transformer substation measurement and control protection device 1n and terminal 1D 2: 23, a pin 1n6X2 of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 2: 24 are connected.

9. The box transformer substation measurement and control protection device according to claim 1, wherein the serial port communication module comprises a box transformer substation measurement and control protection device 1n and a terminal; wherein 1n10X1 pin of box transformer substation measurement and control protection device 1n and terminal 1D 7: 1, the 1n10X2 pin of the box transformer substation measurement and control protection device 1n and the terminal 1D 7: 2, the 1n10X3 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 3, the 1n10X4 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 4, the 1n10X5 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 5, the 1n10X6 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 6, the 1n10X7 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 7, the 1n10X8 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 8, the 1n10X9 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 9, the 1n10X10 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 10, and the 1n10X11 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 11, the 1n10X12 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 12, and a 1n10X13 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 13, the 1n10X14 pin of the box transformer substation measurement and control protection device 1n is connected with the terminal 1D 7: 14 are connected.