CN109507524A - A kind of one secondary connection calibration equipment of switchgear - Google Patents

Abstract

The invention discloses a kind of one secondary connection calibration equipments of switchgear, it include: transmitter and receiver, the transmitter connects the receiver by GPS antenna output, electrically input is connected with 50Hz signal acquisition line to the receiver, electrically input is connected with transmitting signal-conditioning unit to the transmitter, the 50Hz waveform checking and debugging device includes 50Hz signal acquisition line, 50Hz signal transmitting folder, ground line, electrically output is connected with the 50Hz signal transmitting folder and the ground line to the 50Hz signal acquisition line, the inside of the receiver is fixedly installed with complex wave receiving sensor, compound wave detector, low-frequency acquisition device, high frequency detector, the invention has for the switchgear run, the verification of one secondary connection of switchgear can be completed in advance, calibrate the cabinet of wiring dislocation, Guarantee that the secondary nuclear phase of switchgear newly installed is accurate, it is ensured that electrification cyclization quickly, reliably, improves the resultant effect of power supply reliability.

Description

A kind of one secondary connection calibration equipment of switchgear

Technical field

The present invention relates to calibration equipment technical field, specially a kind of one secondary connection calibration equipment of switchgear.

Background technique

According to industry standard, the L1 of switch cabinet electrified indicator should connect in A phase through overcoupled circuits, and L2 should be through overcoupling Circuit connects in B phase, and L3 should connect in C phase through overcoupled circuits, but due to the secondary electrification display of numerous producers production switchgear The case where device standard is different, is likely to result in secondary connection dislocation, and closed switch cabinet hyperbaric chamber in the energized state can not It opens, when nuclear phase, can not differentiate whether a secondary connection has dislocation phenomenon, causes to be unable to complete accurate nuclear phase switchgear is secondary, And then influence power supply reliability.

It there is no the instrument verified for one secondary connection of power supply system switchgear at present, carrying out switchgear examination When, mainly mode by visual observation is verified, but since visual mode error is larger, and it is wrong often to will lead to ring network cabinet wiring The phenomenon that position, occurs, therefore needs to research and develop a kind of one secondary connection calibration equipment of switchgear.

Summary of the invention

The purpose of the present invention is to provide a kind of one secondary connection calibration equipments of switchgear, to solve in above-mentioned background technique The one secondary connection calibration equipment of switchgear of proposition often will lead to the problem of characteristics such as the phenomenon that ring network cabinet wiring dislocation generation.

To achieve the above object, the invention provides the following technical scheme: a kind of one secondary connection calibration equipment of switchgear, packet Include: transmitter and receiver, the transmitter connect the receiver by GPS antenna output, and the receiver electrically inputs It is connected with 50Hz signal acquisition line, electrically input is connected with transmitting signal-conditioning unit, the 50Hz waveform verification to the transmitter Adjuster includes 50Hz signal acquisition line, 50Hz signal transmitting folder, ground line, the 50Hz signal acquisition line electrically output connection Have 50Hz signal transmitting folder and a ground line, the inside of the receiver be fixedly installed with complex wave receiving sensor, Compound wave detector, low-frequency acquisition device, high frequency detector, the receiver include amplifying circuit, filter circuit, amplifying circuit, Center processor and control display circuit, the amplifying circuit, the filter circuit, the amplifying circuit, the center processing Device and the control display circuit successively electrically output connection, the receiver are received by connecting terminal and the complex wave and are passed Sensor, the compound wave detector, the low-frequency acquisition device or high frequency detector connection, the connecting terminal other end are straight It connects and is connect with first order amplifying circuit, the transmitter includes transmitting module, frequency hopping circuit, CPU, control circuit, on transmitter Equipped with grounding ports, electrically input is connected with the control circuit to the CPU, and electrically there are three described for output connection by the CPU Frequency hopping circuit, electrically output is connected with the transmitting module to each frequency hopping circuit.

Preferably, there are two types of modes for the 50Hz waveform checking and debugging device, a kind of for for the progress of the switchgear of electrification 50Hz waveform checking and debugging, another kind is for the switchgear of power failure progress 50Hz waveform checking and debugging.

Preferably, three transmitting module connection four-ways emit direct-connected folder, and the four-way emits direct-connected folder difference L1, L2, L3 of the secondary potential indicator of connecting switch cabinet and equipment.

Preferably, there are three signal amplification modules for its internal fixed installation of the transmitting signal-conditioning unit.

Compared with prior art, the beneficial effects of the present invention are: the invention provides a kind of one secondary connection schools of switchgear Experiment device can complete switchgear one or two for the switchgear run by one secondary connection calibration equipment of switchgear in advance The verification of secondary wiring calibrates the cabinet of wiring dislocation, in production work in the future, can according to one or two wiring relationships, Nuclear phase mode is adjusted, secondary connection verification is completed when checking and accepting for the switchgear newly installed, guarantees that newly installs opens It is accurate to close the secondary nuclear phase of cabinet, it is ensured that electrification cyclization quickly, reliably, improves power supply reliability.

Detailed description of the invention

Fig. 1 is schematic structural view of the invention；

Fig. 2 is the system structure diagram of transmitter of the present invention；

Fig. 3 is the structural schematic diagram of inventive receiver；

Fig. 4 is the system structure diagram of inventive receiver；

Fig. 5 is the structural schematic diagram of 50Hz waveform checking and debugging device of the present invention.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

The present invention provides a kind of technical solution: a kind of one secondary connection calibration equipment of switchgear, for guarantee newly to install The secondary nuclear phase of switchgear is accurate, it is ensured that electrification cyclization quickly, reliably, improves power supply reliability, referring to Fig. 1, including: transmitter And receiver, the transmitter connect the receiver by GPS antenna output, electrically input is connected with 50Hz to the receiver Signal acquisition line, electrically input is connected with transmitting signal-conditioning unit to the transmitter, its inside of the transmitting signal-conditioning unit is solid There are three signal amplification modules for Dingan County's dress, referring to Fig. 2, the transmitter includes transmitting module, frequency hopping circuit, CPU, control electricity Road, transmitter are equipped with grounding ports, and electrically input is connected with the control circuit, the CPU electrically output connection to the CPU There are three the frequency hopping circuit, electrically output is connected with the transmitting module, three transmitting moulds to each frequency hopping circuit Block connects four-way and emits direct-connected folder, the four-way emit it is direct-connected press from both sides be separately connected the secondary potential indicator of switchgear L1, L2, L3 and equipment, referring to Fig. 3, the inside of the receiver is fixedly installed with complex wave receiving sensor, complex wave detection Device, low-frequency acquisition device, high frequency detector, the receiver are selected different detectors according to the difference of tranmitting frequency, are being switched High-pressure side is identified, is verified, referring to Fig. 4, the receiver include amplifying circuit, filter circuit, amplifying circuit, at center Manage device and control display circuit, the amplifying circuit, the filter circuit, the amplifying circuit, the center processor and institute State the successively electrically output connection of control display circuit, the receiver by connecting terminal and the complex wave receiving sensor, The compound wave detector, the low-frequency acquisition device or the high frequency detector connection, the connecting terminal other end directly with First order amplifying circuit connection, referring to Fig. 5, the 50Hz waveform checking and debugging device includes 50Hz signal acquisition line, 50Hz letter Number transmitting folder, ground line, electrically output is connected with the 50Hz signal transmitting folder and the ground connection for the 50Hz signal acquisition line Line, there are two types of modes for the 50Hz waveform checking and debugging device, a kind of to adjust to carry out the verification of 50Hz waveform for the switchgear of electrification Whole, another kind is for the switchgear of power failure progress 50Hz waveform checking and debugging.

In the specific use process, when needing the present invention, its inside of transmitting signal-conditioning unit is fixed during use There are three signal amplification modules for installation, and the one mode of 50Hz waveform checking and debugging device is using fft algorithm to collected abnormal After change waveform is modified, by the comparison in system to all kinds of distorted waveforms, the reason of leading to wave distortion, butted line are found It is unsatisfactory for wave distortion caused by standard, by adjusting route correction waveform, i.e., according to standard mode of connection rewiring, because For wave distortion caused by other reasons, is compared by the waveform and original waveform of fft algorithm reparation, calculate phase shift angle, and Phase shift angle is labeled on switchgear, another mode carries out 50Hz waveform checking and debugging, 50Hz for the switchgear having a power failure Waveform checking and debugging device host connects 50Hz signal acquisition line and 50Hz signal transmitting folder, a clip of 50Hz signal transmitting folder It is connected on the contact of secondary terminated line of switchgear capacitance sensor, the connection of another clip is grounded and is grounded, and examines first The capacitance value for surveying high pressure primary side calculates capacitor in 50Hz using XC=1/ (2 π fC) according to capacitance Impedance calculates high-tension line by the voltage and current after capacitance sensor according to impedometer, and then host meeting basis calculates Voltage and current emit same 50Hz signal, by 50Hz signal acquisition line from switchgear secondary potential indicator acquisition letter Number, the 50Hz signal of collected 50Hz signal and transmission is compared, analysis waveform distortion type, finding causes waveform abnormal The reason of change, butted line are unsatisfactory for wave distortion caused by standard, by adjusting route correction waveform；Because other reasons are led The wave distortion of cause is compared by the waveform of fft algorithm reparation and original waveform, calculates phase shift angle, and by phase shifting angle scale Note is on switchgear.

It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (4)

1. a kind of one secondary connection calibration equipment of switchgear characterized by comprising transmitter and receiver, the transmitter The receiver is connected by GPS antenna output, electrically input is connected with 50Hz signal acquisition line, the transmitting to the receiver Electromechanics input is connected with transmitting signal-conditioning unit, and the 50Hz waveform checking and debugging device includes 50Hz signal acquisition line, 50Hz Signal transmitting folder is grounded, and the 50Hz signal acquisition line electrical property output is connected with the 50Hz signal transmitting folder and connects with described Ground wire, the inside of the receiver are fixedly installed with complex wave receiving sensor, compound wave detector, low-frequency acquisition device, high frequency Detector, the receiver includes amplifying circuit, filter circuit, amplifying circuit, center processor and controls display circuit, described Amplifying circuit, the filter circuit, the amplifying circuit, the center processor and the control display circuit are successively electrically defeated It connects out, the receiver passes through connecting terminal and the complex wave receiving sensor, the compound wave detector, the low frequency Detector or high frequency detector connection, the connecting terminal other end are directly connect with first order amplifying circuit, the hair The machine of penetrating includes transmitting module, frequency hopping circuit, CPU, control circuit, and transmitter is equipped with grounding ports, and electrically input connects the CPU It is connected to the control circuit, electrically there are three the frequency hopping circuit, each frequency hopping circuit is electrically defeated for output connection by the CPU It is connected with the transmitting module out.

2. one secondary connection calibration equipment of a kind of switchgear according to claim 1, it is characterised in that: the 50Hz waveform Checking and debugging device is a kind of to carry out 50Hz waveform checking and debugging for the switchgear of electrification there are two types of mode, another kind for for The switchgear of power failure carries out 50Hz waveform checking and debugging.

3. one secondary connection calibration equipment of a kind of switchgear according to claim 1, it is characterised in that: three transmittings Module connects four-way and emits direct-connected folder, and the four-way emits direct-connected folder and is separately connected the secondary potential indicator of switchgear L1, L2, L3 and equipment.

4. one secondary connection calibration equipment of a kind of switchgear according to claim 1, it is characterised in that: the transmitting signal Adjuster its internal be fixedly mounted that there are three signal amplification modules.