CN211905514U

CN211905514U - Novel transformer on-line monitoring analyzer

Info

Publication number: CN211905514U
Application number: CN201921476988.3U
Authority: CN
Inventors: 周帅
Original assignee: Tianjin Haishuai Electronic Technology Co ltd
Current assignee: Tianjin Haishuai Electronic Technology Co ltd
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-11-10
Anticipated expiration: 2029-09-06

Abstract

The utility model discloses a novel transformer on-line monitoring analysis appearance, belong to on-line monitoring analysis appearance technical field, embedded real-time processor is connected with collection integrated circuit board module electricity, embedded real-time processor's power input end is connected with switching power module's output electricity, the input of collection integrated circuit board module is connected with IV conversion module's output electricity, integrated circuit board module is connected with the external sensor electricity, the power input end of collection integrated circuit board module is connected with power conversion module's output electricity, power conversion module's output is connected with IV conversion module's power input end electricity, switching power module's output is connected with power conversion module's input electricity. The utility model discloses voltage, electric current, temperature and the vibration signal of on-line monitoring transformer carry out real-time monitoring, report to the police and record, just can effectually prevent the harm of direct current magnetic biasing to the transformer.

Description

Novel transformer on-line monitoring analyzer

Technical Field

The utility model relates to an on-line monitoring analysis appearance especially relates to a novel transformer on-line monitoring analysis appearance, belongs to on-line monitoring analysis appearance technical field.

Background

Along with the rapid development of social economy, people have increasingly large supply demand on electric power energy, and for the power supply stability and safety of an electric power system, higher standard requirements are also provided, a transformer is used as an important basic component of a power grid system, the running state of equipment directly influences the safety and stability of the whole operation of the system, especially in a high-voltage direct-current system, when a single-pole ground loop runs, the transformer can influence an alternating-current system in the same area, when two substations at different direct-current points form a loop through an electric line, direct-current flows to a neutral point of the transformer and a winding of the transformer, the transformer can generate a direct-current magnetic biasing phenomenon, abnormal reactions such as noise increase, vibration aggravation and the like of the transformer are caused, so that the service life of the transformer is shortened, and the traditional transformer monitoring system has two problems:

1. the volume is large, and the precision is not high;

2. the function is simple, and the anti-interference capability is not enough.

Therefore, it is necessary to develop a set of transformer monitor with accurate measurement, convenient use and compliance with the standard.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a novel transformer on-line monitoring analysis appearance, the voltage of on-line monitoring transformer, the electric current, temperature and vibration signal, carry out real-time monitoring, report to the police and record, just can effectually prevent the harm of direct current magnetic biasing to the transformer, the modularized design, make things convenient for the later maintenance, therefore, the clothes hanger is strong in practicability, easily large-scale production, the popularization and use, the real-time processor of adoption, use embedded real-time technique and FPGA technique, can guarantee the long-term reliable steady operation of system, adopt the electromagnetic shield machine case, waterproof, dustproof and the design of preventing electromagnetic interference, be applicable to complicated field test environment.

The purpose of the utility model can be achieved by adopting the following technical scheme:

a novel transformer on-line monitoring analyzer comprises a central controller and a real-time acquisition mainframe box, wherein the central controller mainly completes the functions of sending control instructions and receiving, displaying, storing and the like of data, the real-time acquisition mainframe box is connected with the central controller through an RJ45 network cable, the real-time acquisition mainframe box is controlled by the central controller, the real-time acquisition mainframe box comprises an embedded real-time processor, an acquisition board card module, an IV conversion module, a power conversion module and a switching power supply module, the embedded real-time processor mainly realizes the off-line operation of a transformer signal monitoring and analyzing system, the acquisition, the preprocessing, the transmission and the storage of the data, the embedded real-time processor is electrically connected with the acquisition board card module, and the power input end of the embedded real-time processor is electrically connected with the output end of the switching power supply module, the input of collection integrated circuit board module with the output electricity of IV conversion module is connected, integrated circuit board module is connected with external sensor electricity, the power input end of collection integrated circuit board module is connected with power conversion module's output electricity, realizes the conversion of multichannel current signal to voltage signal, power conversion module's output with the power input end electricity of IV conversion module is connected, realizes the transform of direct current voltage amplitude for provide the power for IV conversion module, switching power supply module's output is connected with power conversion module's input electricity, switching power supply realizes exchanging the conversion to the direct current.

Further, the real-time collection mainframe box further comprises a case panel, the case panel is provided with a net port interface, a power switch and a power supply which are located on one side of the front face of the case panel, the other side of the front face of the case panel is provided with a temperature signal connector, and a vibration signal connector, a voltage signal connector and a current signal connector are arranged on the front face of the case panel and located between the power switch and the temperature signal connector.

Furthermore, the acquisition card module is electrically connected with an external sensor through a vibration signal connector, a voltage signal connector, a temperature signal connector and a current signal connector, the embedded real-time processor selects an NICRO-9065 model, the acquisition card module respectively selects NI9515, NI9234 and NI9213 acquisition cards, the acquisition card with the model of NI9215 is electrically connected with the output end of the IV conversion module, and the input ends of the other three acquisition cards are electrically connected with the external sensor through panel connectors, so that the acquisition and conditioning of 4 paths of current signals, 4 paths of voltage signals, 4 paths of vibration signals and 4 paths of temperature signals are realized.

Furthermore, the switch power supply is in an EDR-75-24 model, the output voltage of the switch power supply is direct current 24V, and the switch power supply is used for providing a 24V direct current power supply for the embedded real-time processor and the power supply module in the case.

Further, gather the mainframe box casing in real time and be aluminum alloy casing, gather the bottom four corners department and the top four corners department of mainframe box casing in real time and all pass through the flange cornerite, the inner wall of real time collection mainframe box casing is equipped with netted shielding strip, plays shockproof antiskid wear-resisting, electromagnetic shielding's effect.

The utility model has the advantages of:

the utility model provides a pair of novel transformer on-line monitoring analysis appearance:

1. the voltage, current, temperature and vibration signals of the transformer are monitored on line, real-time monitoring, alarming and recording are carried out, and damage of direct current magnetic biasing to the transformer can be effectively prevented.

2. The modularized design is convenient for later maintenance, the practicability is strong, and the large-scale production and popularization and use are easy;

3. the real-time processor is adopted, and an embedded real-time technology and an FPGA technology are applied, so that the long-term reliable and stable operation of the system can be ensured;

4. the electromagnetic shielding case is adopted, has waterproof, dustproof and electromagnetic interference prevention design, and is suitable for complex field test environments.

Drawings

Fig. 1 is a block diagram of a system configuration of a preferred embodiment of a novel transformer on-line monitoring analyzer according to the present invention;

fig. 2 is a schematic layout diagram of a chassis panel according to a preferred embodiment of the present invention.

In the figure: the system comprises a 1-network port interface, a 2-power switch, a 3-power supply, a 4-vibration signal connector, a 5-voltage signal connector, a 6-temperature signal connector and a 7-current signal connector.

Detailed Description

In order to make the technical solutions of the present invention clearer and clearer for those skilled in the art, the present invention will be described in further detail with reference to the following embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

As shown in fig. 1-2, the present embodiment provides a novel transformer online monitoring analyzer, which includes a central controller and a real-time collection mainframe box, the real-time collection mainframe box is connected to the central controller via an RJ45 network cable, the real-time collection mainframe box includes an embedded real-time processor, a collection board module, an IV conversion module, a power conversion module and a switching power module, the embedded real-time processor is electrically connected to the collection board module, a power input end of the embedded real-time processor is electrically connected to an output end of the switching power module, an input end of the collection board module is electrically connected to an output end of the IV conversion module, the collection board module is electrically connected to an external sensor, a power input end of the collection board module is electrically connected to an output end of the power conversion module, an output end of the power conversion module is electrically connected to a, the output end of the switch power supply module is electrically connected with the input end of the power supply conversion module.

The intelligent acquisition system comprises a central processing unit, a real-time acquisition mainframe box, an external sensor, an acquisition board card module, a central processing unit, an acquisition board card module, a switching power supply and a real-time processor, wherein the central processing unit sends instructions to and receives data from the real-time acquisition mainframe box, the data is acquired by the external sensor, one part of the acquired data is directly input into the acquisition board card module, the other part of the acquired data is converted by the IV conversion module and then input into the acquisition board card module, the acquisition board card module concentrates and conveys the acquired data into the real-time processor for processing, the data is mutually transmitted with the central processing unit, the switching power supply in the real-time acquisition mainframe box is externally connected with AC220V alternating.

In this embodiment, as shown in fig. 2, the real-time collection main box further includes a case panel, the case panel is provided with a network port interface 1 located on one side of the front surface of the case panel, a power switch 2 and a power supply 3, the other side of the front surface of the case panel is provided with a temperature signal connector 6, a vibration signal connector 4, a voltage signal connector 5 and a current signal connector 7 are arranged on the front surface of the case panel and located between the power switch 2 and the temperature signal connector 6, and the collection card module is electrically connected to an external sensor through the vibration signal connector 4, the voltage signal connector 5, the temperature signal connector 6 and the current signal connector 7.

Corresponding sensors are externally connected through the dynamic signal connector 4, the voltage signal connector 5 and the current signal connector 7, so that the acquired signals are transmitted into the acquisition card through the dynamic signal connector 4, the voltage signal connector 5 and the current signal connector 7.

In this embodiment, the embedded real-time processor is of a NICRO-9065 type, the acquisition card modules are respectively of NI9515, NI9234 and NI9213 acquisition cards, wherein the acquisition card of the NI9215 type is electrically connected with the output end of the IV conversion module, the input ends of the other three acquisition cards are electrically connected with the external sensor through a panel connector, the switching power supply is of an EDR-75-24 type, and the output voltage of the switching power supply is direct current 24V.

In this embodiment, the real-time collection mainframe box casing is aluminum alloy housing, and the bottom four corners department and the top four corners department of real-time collection mainframe box casing all pass through the flange cornerite, and the inner wall of real-time collection mainframe box casing is equipped with netted shielding strip, plays the guard action when dropping through the flange cornerite, shields the external world through netted shielding strip, and the inner wall of real-time collection mainframe box casing carries out electrically conductive oxidation treatment.

As shown in fig. 1-2, the working process of the novel transformer online monitoring analyzer provided by this embodiment is as follows:

step 1: corresponding sensors are externally connected through the dynamic signal connector 4, the voltage signal connector 5 and the current signal connector 7, so that the acquired signals are transmitted into the acquisition card through the dynamic signal connector 4, the voltage signal connector 5 and the current signal connector 7;

step 2: the acquisition board card module collects and transmits acquired data to the real-time processor for processing, the acquired data are mutually transmitted with the central controller, the switching power supply in the mainframe box is acquired in real time and externally connected with AC220V alternating current, the alternating current is converted into 24V direct current and is provided for the real-time processor, and the 24V direct current is transformed by the power conversion module and is provided for the IV conversion module for use.

The above description is only a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and any person skilled in the art can replace or change the technical solution and the concept of the present invention within the scope of the present invention.

Claims

1. The utility model provides a novel transformer on-line monitoring analysis appearance, includes central controller, gathers mainframe box and collection card module in real time, its characterized in that: the real-time acquisition mainframe box is connected with the central controller through an RJ45 network cable, the real-time acquisition mainframe box comprises an embedded real-time processor, an acquisition board card module, an IV conversion module, a power supply conversion module and a switch power supply module, the embedded real-time processor is electrically connected with the acquisition board card module, the power supply input end of the embedded real-time processor is electrically connected with the output end of the switch power supply module, the input end of the acquisition board card module is electrically connected with the output end of the IV conversion module, the collection board card module is electrically connected with an external sensor, the power input end of the acquisition board card module is electrically connected with the output end of the power conversion module, the output end of the power conversion module is electrically connected with the power input end of the IV conversion module, and the output end of the switch power supply module is electrically connected with the input end of the power conversion module.

2. The novel transformer on-line monitoring analyzer according to claim 1, characterized in that: gather the mainframe box in real time and still include quick-witted case panel, be equipped with on the quick-witted case panel and be located net gape interface (1), switch (2) and power supply (3) of the positive one side of quick-witted case panel, the positive opposite side of quick-witted case panel is equipped with temperature signal connector (6), the machine case panel just is located and is equipped with vibration signal connector (4), voltage signal connector (5) and current signal connector (7) between switch (2) and temperature signal connector (6) on openly.

3. The novel transformer on-line monitoring analyzer according to claim 2, characterized in that: the acquisition card module is electrically connected with an external sensor through a vibration signal connector (4), a voltage signal connector (5), a temperature signal connector (6) and a current signal connector (7).

4. The novel transformer on-line monitoring analyzer according to claim 1, characterized in that: the embedded real-time processor is of an NICRO-9065 model, the acquisition card modules are respectively of NI9515, NI9234 and NI9213 acquisition cards, the acquisition card of the NI9215 model is electrically connected with the output end of the IV conversion module, and the input ends of the other three acquisition cards are electrically connected with the external sensor through panel connectors.

5. The novel transformer on-line monitoring analyzer according to claim 1, characterized in that: the switching power supply is EDR-75-24 type, and the output voltage of the switching power supply is direct current 24V.

6. The novel transformer on-line monitoring analyzer according to claim 1, characterized in that: the real-time collection mainframe box shell is an aluminum alloy shell, the bottom four corners and the top four corners of the real-time collection mainframe box shell are wrapped by flanges, and the inner wall of the real-time collection mainframe box shell is provided with a mesh shielding strip.