CN104794967A - High-voltage electric energy metering gauge mounting and wiring analysis comprehensive practical training device - Google Patents
High-voltage electric energy metering gauge mounting and wiring analysis comprehensive practical training device Download PDFInfo
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- CN104794967A CN104794967A CN201510258914.2A CN201510258914A CN104794967A CN 104794967 A CN104794967 A CN 104794967A CN 201510258914 A CN201510258914 A CN 201510258914A CN 104794967 A CN104794967 A CN 104794967A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/187—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for measuring instruments
Abstract
The invention relates to a high-voltage electric energy metering gauge mounting and wiring analysis comprehensive practical training device which comprises a PLC, a virtual power supply and a high-voltage electric energy metering gauge, wherein a fault training current mutual inductor simulation device is arranged between the current output end of the virtual power supply and the high-voltage electric energy metering gauge; a fault training voltage mutual inductor simulation device is arranged between the voltage output end of the virtual power supply and the high-voltage electric energy metering gauge; the PLC is used for controlling the fault training current mutual inductor simulation device and the fault training voltage mutual inductor simulation device for fault setup. The high-voltage electric energy metering gauge mounting and wiring analysis comprehensive practical training device can be used for simulating various faults, secondary tested voltage drop can be set up, the polarity of a current mutual inductor can be set up, the phase sequence of a voltage mutual inductor can be set up, and the open phase of the voltage mutual inductor can be also set up.
Description
Technical field
The present invention relates to a kind of instructional device of power industry educational training, particularly a kind of high-voltage electric energy measurement is installed and wiring analysis comprehensive training device.
Background technology
Send out in electric system, supply, in the links of electricity consumption, installed a large amount of electric power meters.Be used for measuring generated energy, station-service electricity, delivery, electricity sales amount etc.Electric power meter comprises all kinds electric energy meter, metering voltage, current transformer and secondary circuit thereof, electric energy metering cabinet (case) etc.Existing high-voltage electric energy measurement is installed, first test training is normally carried out explaining in conjunction with means such as picture, film, ppT, then carry out the mode watched, teach to student install about high-voltage electric energy measurement, the knowledge such as the principle of test and operation.But for electrical equipments such as high-voltage electric energy measurement installation, tests, explain and view and emulate the result of training played very limited, student does not know the consequence having what phenomenon and bring under each fault, and be difficult to allow student grasp thoroughly high-voltage electric energy measurement installed, the operation of test and its principle of profound understanding thereof.
Summary of the invention
The object of the invention is the deficiency existed for prior art, a kind of high-voltage electric energy measurement is provided to install and wiring analysis comprehensive training device, there is various fault simulation, secondary pressure measurement can be carried out and fall setting, current transformer polarity set, voltage phase sequence setting, the setting of voltage phase shortage.
The object of the present invention is achieved like this: a kind of high-voltage electric energy measurement is installed and wiring analysis comprehensive training device, comprise PLC, virtual power supply and high-voltage electric energy measurement table, failure classes training Current Transformer analogue means is provided with between the current output terminal of described virtual power supply and high-voltage electric energy measurement table, failure classes training voltage simulator for mutual inductor is provided with between the voltage output end of described virtual power supply and high-voltage electric energy measurement table, described PLC is for controlling failure classes training Current Transformer analogue means, failure classes training voltage simulator for mutual inductor carries out fault verification.
Described failure classes training Current Transformer analogue means, the failure classes training primary side of voltage simulator for mutual inductor are connected with virtual power supply, be provided with the terminal box with impedance fault analog functuion between the secondary side of failure classes training Current Transformer analogue means, failure classes training voltage simulator for mutual inductor and high-voltage electric energy measurement table, described PLC carries out fault verification for the terminal box controlling to have impedance fault analog functuion.
A.C. contactor between the electric current end of incoming cables of described terminal box and current outlet end, resistance, the normally closed contact of A.C. contactor is connected between the end of incoming cables of terminal box and leading-out terminal, the normally opened contact of A.C. contactor is in series with a resistor rear in parallel with its normally closed contact, auxiliary reclay between the voltage end of incoming cables of described terminal box and voltage leading-out terminal, resistance, the normally closed contact of auxiliary reclay is connected between the end of incoming cables of terminal box and leading-out terminal, the normally opened contact of auxiliary reclay is in series with a resistor rear in parallel with its normally closed contact, auxiliary reclay, A.C. contactor is all connected with PLC.
Current transformer polarity set trouble spot is provided with in described failure classes training Current Transformer analogue means.
Described failure classes training Current Transformer analogue means comprises high-tension current inductor shell, 7th A.C. contactor, first A.C. contactor and be positioned at the current transformer of high-tension current inductor shell, the first primary side wiring interface on described high-tension current inductor shell is connected with the second primary side wiring interface through the normally closed contact of the 7th A.C. contactor, first primary side wiring interface of described high-tension current inductor shell is connected with first primary side (p1) of current transformer through the first normally opened contact of the 7th A.C. contactor, second primary side wiring interface of described high-tension current inductor shell is connected with second primary side (p2) of current transformer through the second normally opened contact of the 7th A.C. contactor, first secondary side wiring interface of high-tension current inductor shell is connected with the first secondary side s1 of current transformer through the first normally opened contact of the first A.C. contactor, first secondary side wiring interface of high-tension current inductor shell is connected with the second secondary side s2 of current transformer through the first normally closed contact of the first A.C. contactor, second secondary side wiring interface of high-tension current inductor shell is connected with the second secondary side s2 of current transformer through the second normally opened contact of the first A.C. contactor, second secondary side wiring interface of high-tension current inductor shell is connected with the first secondary side s1 of current transformer through the second normally closed contact of the first A.C. contactor.
Voltage transformer (VT) phase sequence setting trouble spot is provided with in described failure classes training voltage simulator for mutual inductor.
Described failure classes training voltage simulator for mutual inductor comprises three-phase isolation transformer, two high voltage potential transformer shells and multiple auxiliary reclay (J4-J15), the inlet wire side A of described three-phase isolation transformer, B, C phase is through the 4th auxiliary reclay (J4), 5th auxiliary reclay (J5), the auxiliary contact of the 6th auxiliary reclay (J6) respectively with the primary side wiring interface (U600 on high voltage potential transformer shell, V600, W600) connect, the outgoing line side a phase of described three-phase isolation transformer is through the 7th auxiliary reclay (J7), 8th auxiliary reclay (J8), the auxiliary contact of the 9th auxiliary reclay (J9) respectively with the secondary side wiring interface (U603 on high voltage potential transformer shell, V603, W603) connect, the outgoing line side b phase of described three-phase isolation transformer is through the tenth auxiliary reclay (J10), 11 auxiliary reclay (J11), the auxiliary contact of the 12 auxiliary reclay (J12) respectively with the secondary side wiring interface (U603 on high voltage potential transformer shell, V603, W603) connect, the outgoing line side c phase of described three-phase isolation transformer is through the 13 auxiliary reclay (J13), 14 auxiliary reclay (J14), the auxiliary contact of the 15 auxiliary reclay (J15) respectively with the secondary side wiring interface (U603 on high voltage potential transformer shell, V603, W603) connect, A.C. contactor, auxiliary reclay is all electrically connected with PLC.
This actual training device also comprises dress table class training Current Transformer analogue means, the primary side of described dress table class training Current Transformer analogue means is connected between two current output terminals of each phase of virtual power supply with the primary side of failure classes training Current Transformer analogue means, described dress table class training Current Transformer analogue means comprises high-tension current inductor shell, 8th A.C. contactor and be positioned at the current transformer of high-tension current inductor shell, the first primary side wiring interface on described high-tension current inductor shell is connected with the second primary side wiring interface through the normally closed contact of the 8th A.C. contactor, first primary side wiring interface of described high-tension current inductor shell is connected with first primary side (p1) of current transformer through the first normally opened contact of the 8th A.C. contactor, second primary side wiring interface of described high-tension current inductor shell is connected with second primary side (p2) of current transformer through the second normally opened contact of the 8th A.C. contactor, two secondary side wiring interfaces of high-tension current inductor shell respectively with two secondary side (s1 of current transformer, s2) connect.
This actual training device also comprises dress table class training voltage simulator for mutual inductor, and dress table class training voltage simulator for mutual inductor is arranged on the dress table class training face of actual training device, for real training wiring.The dress table class training primary side of voltage simulator for mutual inductor is connected with the voltage output end of virtual power supply.
The end of incoming cables of described virtual power supply is connected with power inleting terminal, the leading-out terminal of virtual power supply is connected with the primary side wiring interface on high-tension current inductor shell, high voltage potential transformer shell respectively, be in series with scram button and auxiliary reclay (J26) between the end of incoming cables of described virtual power supply and power inleting terminal, auxiliary reclay (J26) is connected with PLC.
Adopt such scheme, the present invention is had the following advantages: owing to being provided with failure classes training Current Transformer analogue means between the current output terminal of described virtual power supply of the present invention and high-voltage electric energy measurement table, failure classes training voltage simulator for mutual inductor is provided with between the voltage output end of described virtual power supply and high-voltage electric energy measurement table, described PLC is for controlling failure classes training Current Transformer analogue means, failure classes training voltage simulator for mutual inductor carries out fault verification, failure classes training Current Transformer analogue means, failure classes training voltage simulator for mutual inductor, terminal box has various fault simulation, secondary pressure measurement can be carried out and fall setting, current transformer polarity set, voltage transformer (VT) phase sequence sets, voltage transformer (VT) phase shortage setting etc., make the present invention can meet dress table and connect electric real training, current transformer test training, phase sequence negative pressure real training, relevant work post and the management trainings such as high-voltage electrical apparatus safe distance real training, the needs of examination and technical appraisement.Be practiced as emphasis form of teaching because this patent can meet with real training, make student can understand electrical safety knowledge completely, real grasp electrical safety technology, the life security during guarantee student works afterwards and health.Improve the performance of enterprises, improve safety, the stable operation level of electrical network.
This actual training device based on various electrical safety rudimentary knowledge, apply current advanced person electric, electronic technology and develop integrate training and learning, actual training device that theoretical validation, practical operation, examination are identified.
Below in conjunction with drawings and Examples, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is the main circuit diagram of high-voltage electric energy measurement of the present invention installation and wiring analysis comprehensive training device;
Fig. 2 is the wiring schematic diagram of U phase fault class training Current Transformer analogue means of the present invention, dress table class training Current Transformer analogue means;
Fig. 3 is the wiring schematic diagram of W phase fault class training Current Transformer analogue means of the present invention, dress table class training Current Transformer analogue means;
Fig. 4 is the schematic diagram of dress table class training Current Transformer analogue means of the present invention;
Fig. 5 is the schematic diagram of failure classes training Current Transformer analogue means of the present invention;
Fig. 6 is the schematic diagram of failure classes training voltage simulator for mutual inductor of the present invention;
Fig. 7 is the back panel wiring schematic diagram of terminal box of the present invention;
Fig. 8 is the schematic diagram that virtual power supply of the present invention controls;
Fig. 9 is the schematic diagram that PLC of the present invention controls.
Embodiment
See Fig. 1 to Fig. 9, a kind of high-voltage electric energy measurement is installed and wiring analysis comprehensive training device, comprises PLC, virtual power supply and high-voltage electric energy measurement table.The virtual power supply of the present embodiment adopts ZX5050 type three-phase program-controlled precision measurement power supply.Failure classes training Current Transformer analogue means is provided with between the current output terminal of described virtual power supply and high-voltage electric energy measurement table, be provided with failure classes training voltage simulator for mutual inductor between the voltage output end of described virtual power supply and high-voltage electric energy measurement table, described PLC for controlling failure classes training Current Transformer analogue means, failure classes training voltage simulator for mutual inductor carries out fault verification.Described failure classes training Current Transformer analogue means, the failure classes training primary side of voltage simulator for mutual inductor are connected with virtual power supply, be provided with the terminal box with impedance fault analog functuion between the secondary side of failure classes training Current Transformer analogue means, failure classes training voltage simulator for mutual inductor and high-voltage electric energy measurement table, described PLC carries out fault verification for the terminal box controlling to have impedance fault analog functuion.This device can be arranged on a cabinet.
The voltage outlet of virtual power supply have passed through high voltage potential transformer, measures terminal box at the secondary by high voltage potential transformer, and terminal box is through repacking, allows the end of incoming cables of terminal box not communicate to leading-out terminal, as shown in Figure 7 through processing.
Wired impedance fault is designed according to the end of incoming cables of terminal box and leading-out terminal, same first end of incoming cables of terminal box and leading-out terminal centre are through the first relay, through auxiliary reclay in the middle of when end of incoming cables and leading-out terminal are superpotential, through A.C. contactor in the middle of during electric current, the auxiliary reclay of process or the normally opened contact of A.C. contactor are contacted the first resistance therebetween, the resistive fault of Here it is line.
Described high-tension current inductor shell, terminal box is provided with between secondary side wiring interface on high voltage potential transformer shell and high-voltage electric energy measurement table, A.C. contactor between the electric current end of incoming cables of described terminal box and current outlet end, resistance, the normally closed contact of A.C. contactor is connected between the end of incoming cables of terminal box and leading-out terminal, the normally opened contact of A.C. contactor is in series with a resistor rear in parallel with its normally closed contact, auxiliary reclay between the voltage end of incoming cables of described terminal box and voltage leading-out terminal, resistance, the normally closed contact of auxiliary reclay is connected between the end of incoming cables of terminal box and leading-out terminal, the normally opened contact of auxiliary reclay is in series with a resistor rear in parallel with its normally closed contact, auxiliary reclay, A.C. contactor is all connected with PLC.PLC controls A.C. contactor by auxiliary reclay.
Current transformer polarity set trouble spot is provided with in described failure classes training Current Transformer analogue means.Described failure classes training Current Transformer analogue means comprises high-tension current inductor shell, 7th A.C. contactor, first A.C. contactor and be positioned at the current transformer of high-tension current inductor shell, the first primary side wiring interface on described high-tension current inductor shell is connected with the second primary side wiring interface through the normally closed contact of the 7th A.C. contactor, first primary side wiring interface of described high-tension current inductor shell is connected with first primary side (p1) of current transformer through the first normally opened contact of the 7th A.C. contactor, second primary side wiring interface of described high-tension current inductor shell is connected with second primary side (p2) of current transformer through the second normally opened contact of the 7th A.C. contactor, first secondary side wiring interface of high-tension current inductor shell is connected with the first secondary side s1 of current transformer through the first normally opened contact of the first A.C. contactor, first secondary side wiring interface of high-tension current inductor shell is connected with the second secondary side s2 of current transformer through the first normally closed contact of the first A.C. contactor, second secondary side wiring interface of high-tension current inductor shell is connected with the second secondary side s2 of current transformer through the second normally opened contact of the first A.C. contactor, second secondary side wiring interface of high-tension current inductor shell is connected with the first secondary side s1 of current transformer through the second normally closed contact of the first A.C. contactor.It is the best that the current transformer of the present embodiment and A.C. contactor are all arranged on effect in high-tension current inductor shell.Described current transformer is ordinary high pressure current transformer, supporting with high-tension current inductor shell.
Voltage transformer (VT) phase sequence setting trouble spot is provided with in described failure classes training voltage simulator for mutual inductor.Described failure classes training voltage simulator for mutual inductor comprises three-phase isolation transformer, two high voltage potential transformer shells and multiple auxiliary reclay (J4-J15), the inlet wire side A of described three-phase isolation transformer, B, C phase is through the 4th auxiliary reclay (J4), 5th auxiliary reclay (J5), the auxiliary contact of the 6th auxiliary reclay (J6) respectively with the primary side wiring interface (U600 on high voltage potential transformer shell, V600, W600) connect, the outgoing line side a phase of described three-phase isolation transformer is through the 7th auxiliary reclay (J7), 8th auxiliary reclay (J8), the auxiliary contact of the 9th auxiliary reclay (J9) respectively with the secondary side wiring interface (U603 on high voltage potential transformer shell, V603, W603) connect, the outgoing line side b phase of described three-phase isolation transformer is through the tenth auxiliary reclay (J10), 11 auxiliary reclay (J11), the auxiliary contact of the 12 auxiliary reclay (J12) respectively with the secondary side wiring interface (U603 on high voltage potential transformer shell, V603, W603) connect, the outgoing line side c phase of described three-phase isolation transformer is through the 13 auxiliary reclay (J13), 14 auxiliary reclay (J14), the auxiliary contact of the 15 auxiliary reclay (J15) respectively with the secondary side wiring interface (U603 on high voltage potential transformer shell, V603, W603) connect, A.C. contactor, auxiliary reclay is all electrically connected with PLC.
In Fig. 6, J4, J5, J6(J4-J6 are auxiliary reclay) for arranging the open-phase fault setting of voltage, J7-J15(J7-J15 auxiliary reclay) for arranging the Phase-sequence Fault of voltage, the outlet of isolating transformer is surveyed to high voltage potential transformer secondary, and the inlet wire of isolating transformer is provided by the once survey of high voltage potential transformer.Simulate real high voltage potential transformer.Positive phase sequence: Uabc:J7J11J15, Ubca:J10J14J9, Ucab:J13J8J12.Negative phase sequence: Uacb:J7J14J12, Ubac:J10J8J15, Ucba:J13J11J9.
This actual training device also comprises dress table class training Current Transformer analogue means and dress table class training voltage simulator for mutual inductor, the primary side of described dress table class training Current Transformer analogue means is connected between two current output terminals of each phase of virtual power supply with the primary side of failure classes training Current Transformer analogue means, described dress table class training Current Transformer analogue means comprises high-tension current inductor shell, 8th A.C. contactor and be positioned at the current transformer of high-tension current inductor shell, the first primary side wiring interface on described high-tension current inductor shell is connected with the second primary side wiring interface through the normally closed contact of the 8th A.C. contactor, first primary side wiring interface of described high-tension current inductor shell is connected with first primary side (p1) of current transformer through the first normally opened contact of the 8th A.C. contactor, second primary side wiring interface of described high-tension current inductor shell is connected with second primary side (p2) of current transformer through the second normally opened contact of the 8th A.C. contactor, two secondary side wiring interfaces of high-tension current inductor shell respectively with two secondary side (s1 of current transformer, s2) connect.Dress table class training voltage simulator for mutual inductor is arranged on the dress table class training face of actual training device.This electric energy metrical installation testing actual training device has and is drained through class training, the training of dress table class.This actual training device is provided with dress table class training face and is drained through class training face.How it is how to fix a breakdown owing to needing teacher to teach student on this equipment that setting is drained through class training face, wiring.Arranging dress table class training face is because teacher teaches students' union, needs student on this face, start wiring.Failure classes training face needs to train the wrong connection that may occur in the wiring of student's various dress table, and the line in dress table class training face is that student oneself connects entirely, and being does not need fault.
The A phase current positive output end of described virtual power supply is connected with the first primary side wiring interface of Fisrt fault class training Current Transformer analogue means TA1, the second primary side wiring interface and first of described Fisrt fault class training Current Transformer analogue means TA1 fills the first primary side wiring interface showing class training Current Transformer analogue means TA3 and is connected, the second primary side wiring interface of the first dress table class training Current Transformer analogue means TA3 is connected with the A phase current negative output terminal of virtual power supply, the secondary side wiring interface of Fisrt fault class training Current Transformer analogue means TA1 connects high-voltage electric energy measurement table through terminal box.The C phase current positive output end of described virtual power supply is connected with the first primary side wiring interface of the second failure classes training Current Transformer analogue means TA2, the second primary side wiring interface and second of described second failure classes training Current Transformer analogue means TA2 fills the first primary side wiring interface showing class training Current Transformer analogue means TA4 and is connected, the second primary side wiring interface of the second dress table class training Current Transformer analogue means TA4 is connected with the C phase current negative output terminal of virtual power supply, the secondary side wiring interface of the second failure classes training Current Transformer analogue means TA2 connects high-voltage electric energy measurement table through terminal box.
After reequiping high-tension current inductor, high-tension current inductor can be allowed to meet reality.After reequiping inside high-tension current inductor, the function required for this actual training device can be realized, high-tension current inductor once survey P1 through JK A.C. contactor often open with normally closed point after, not opening A.C. contactor can make high-tension current inductor P1 and P2 communicate, but high-tension current inductor secondary is surveyed does not have electric current, after opening A.C. contactor JK, high-tension current inductor P1 and P2 can be made to communicate, high-tension current inductor secondary is surveyed has electric current to export.
This electric energy metrical installation testing actual training device has and is drained through class training, the training of dress table class.TA1 and TA2 is the failure classes training Current Transformer analogue means be drained through on class training face, and TA3 and TA4 is the failure classes training Current Transformer analogue means on dress table class training face.The A phase current of virtual power supply, after the P1 of TA1, is received on the P1 of TA3 at the P2 by TA1, gets back on virtual power supply at the P2 by TA3, and the secondary of TA1 is surveyed and received in terminal box, and the C phase of virtual power supply is same principle with A phase, the B phase directly short circuit of virtual power supply.
Be the high voltage potential transformer housing that this actual training device is drained through on class training face see Fig. 1, TV1 and TV2, TV3 and TV4 is the high voltage potential transformer housing on this actual training device on dress table class training face.Voltage is by virtual power supply through voltage transformer (VT), at the secondary side that become overtension medium-voltage potential transformers by three-phase isolation transformer (100V) in terminal box.
Power supply due to this device is that virtual power supply is powered, and electric current and the voltage of virtual power supply are what to separate, in order to realize simulating reality, and to bronze medal (wire) through row repacking.
The repacking principle of bronze medal: the voltage and current exported to allow virtual power supply is combined, simulate the single line output voltage in reality and electric current, thus the repacking of bronze medal is exactly that two onesize bronze medals were combined through adding, requirement is that the bronze medal be combined can not communicate, although thus this actual training device electric current is walked together with voltage, they can not disturb mutually.
Processing: add insulation gold paper in the middle of two onesize bronze medals, then through fining-off, two bronze medals are forced together, they can not be dropped, allows them not communicate simultaneously.
The start and stop programmable controller (PLC) controlling virtual power supply controls, and centre is provided with suddenly stops protection power source.See Fig. 8, the end of incoming cables of described virtual power supply is connected with power inleting terminal, and the leading-out terminal of virtual power supply is connected with the primary side wiring interface on high-tension current inductor shell, high voltage potential transformer shell respectively.Be in series with scram button and auxiliary reclay (J26) between the end of incoming cables of described virtual power supply and power inleting terminal, auxiliary reclay (J26) is connected with PLC.
To control the start and stop of virtual power supply be that in the middle of electric power incoming line terminal by this device, series winding is anxious stops and J26(auxiliary reclay) normal battle after, on the input terminal receiving virtual power supply, this actual training device up-set condition can be run into like this can press anxious stopping and close virtual power supply, in case virtual power supply damages, series winding J26(auxiliary reclay) in the start and stop by programmable device (PLC) control J26, thus real training opertaing device power supply on computers.The power inleting terminal sub-connection external power supply of this device.
What in Fig. 9, PLC HOsT represented is PLC programmable device main frame, what PLC CTTp represented is PLC programmable device supplementary module, PLC programmable device controls energising or the power-off of the coil of auxiliary reclay J1-J26, and auxiliary reclay J16-J25 is for controlling energising or the power-off of the coil of A.C. contactor JK1-JK10.Real training the running status of opertaing device can be being carried out by computing machine, for real training provides convenient by PLC programmable device and computer communication.
Fault inside this device has secondary pressure measurement to fall setting, is respectively pressure-wire and current line pressure drop.
Pressure-wire: pressure-wire pressure drop with or without, U phase, V phase, W phase, can select as requested, as the pressure drop setting during which needs mutually, to select nothing when every needs mutually during pressure drop, expression be set without pressure drop.
Current line: current line pressure drop with or without, Ia enters, Ia goes out, Ic enters, Ic goes out, can select as requested, as the pressure drop setting during which needs mutually, to select nothing when every needs mutually during pressure drop, expression be set without pressure drop.
Current transformer polarity set, is respectively positive polarity and negative polarity.
Positive polarity: U-just, W-just, when needs sD high-voltage electric energy measurement installation-test training screen normally run time, just select this.
Negative polarity: U-is negative, W-bears, and when needs negative polarity is tested, arranges the polarity of needs as requested.
Voltage transformer (VT) phase sequence sets, and has positive abc, positive bca, positive cab, inverse acb, inverse bac, inverse cba, set required phase sequence as requested in phase sequence setting.
The setting of voltage transformer (VT) phase shortage, the inside is provided with nothing, lacks W phase without representing not phase shortage, the scarce U phase of U representative, the scarce V phase of V representative, W representative.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, auxiliary reclay, A.C. contactor can substitute with the switch with identical function, the setting form of fault is also not only confined to above-described embodiment, when realizing same function (setting, current transformer polarity set, voltage phase sequence setting, the setting of voltage phase shortage etc. fall in secondary pressure measurement), concrete connected mode can carry out simple variant, obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. a high-voltage electric energy measurement is installed and wiring analysis comprehensive training device, it is characterized in that, comprise PLC, virtual power supply and high-voltage electric energy measurement table, failure classes training Current Transformer analogue means is provided with between the current output terminal of described virtual power supply and high-voltage electric energy measurement table, failure classes training voltage simulator for mutual inductor is provided with between the voltage output end of described virtual power supply and high-voltage electric energy measurement table, described PLC is for controlling failure classes training Current Transformer analogue means, failure classes training voltage simulator for mutual inductor carries out fault verification.
2. high-voltage electric energy measurement according to claim 1 is installed and wiring analysis comprehensive training device, it is characterized in that: described failure classes training Current Transformer analogue means, the failure classes training primary side of voltage simulator for mutual inductor is connected with virtual power supply, failure classes training Current Transformer analogue means, the terminal box with impedance fault analog functuion is provided with between the secondary side of failure classes training voltage simulator for mutual inductor and high-voltage electric energy measurement table, described PLC carries out fault verification for the terminal box controlling to have impedance fault analog functuion.
3. high-voltage electric energy measurement according to claim 2 is installed and wiring analysis comprehensive training device, it is characterized in that: A.C. contactor between the electric current end of incoming cables of described terminal box and current outlet end, resistance, the normally closed contact of A.C. contactor is connected between the end of incoming cables of terminal box and leading-out terminal, the normally opened contact of A.C. contactor is in series with a resistor rear in parallel with its normally closed contact, auxiliary reclay between the voltage end of incoming cables of described terminal box and voltage leading-out terminal, resistance, the normally closed contact of auxiliary reclay is connected between the end of incoming cables of terminal box and leading-out terminal, the normally opened contact of auxiliary reclay is in series with a resistor rear in parallel with its normally closed contact, auxiliary reclay, A.C. contactor is all connected with PLC.
4. high-voltage electric energy measurement according to claim 1 is installed and wiring analysis comprehensive training device, it is characterized in that: be provided with current transformer polarity set trouble spot in described failure classes training Current Transformer analogue means.
5. high-voltage electric energy measurement according to claim 4 is installed and wiring analysis comprehensive training device, it is characterized in that: described failure classes training Current Transformer analogue means comprises high-tension current inductor shell, 7th A.C. contactor, first A.C. contactor and be positioned at the current transformer of high-tension current inductor shell, the first primary side wiring interface on described high-tension current inductor shell is connected with the second primary side wiring interface through the normally closed contact of the 7th A.C. contactor, first primary side wiring interface of described high-tension current inductor shell is connected with first primary side (p1) of current transformer through the first normally opened contact of the 7th A.C. contactor, second primary side wiring interface of described high-tension current inductor shell is connected with second primary side (p2) of current transformer through the second normally opened contact of the 7th A.C. contactor, first secondary side wiring interface of high-tension current inductor shell is connected with the first secondary side s1 of current transformer through the first normally opened contact of the first A.C. contactor, first secondary side wiring interface of high-tension current inductor shell is connected with the second secondary side s2 of current transformer through the first normally closed contact of the first A.C. contactor, second secondary side wiring interface of high-tension current inductor shell is connected with the second secondary side s2 of current transformer through the second normally opened contact of the first A.C. contactor, second secondary side wiring interface of high-tension current inductor shell is connected with the first secondary side s1 of current transformer through the second normally closed contact of the first A.C. contactor.
6. high-voltage electric energy measurement according to claim 1 is installed and wiring analysis comprehensive training device, it is characterized in that: be provided with voltage transformer (VT) phase sequence setting trouble spot in described failure classes training voltage simulator for mutual inductor.
7. high-voltage electric energy measurement according to claim 6 is installed and wiring analysis comprehensive training device, it is characterized in that: described failure classes training voltage simulator for mutual inductor comprises three-phase isolation transformer, two high voltage potential transformer shells and multiple auxiliary reclay (J4-J15), the inlet wire side A of described three-phase isolation transformer, B, C phase is through the 4th auxiliary reclay (J4), 5th auxiliary reclay (J5), the auxiliary contact of the 6th auxiliary reclay (J6) respectively with the primary side wiring interface (U600 on high voltage potential transformer shell, V600, W600) connect, the outgoing line side a phase of described three-phase isolation transformer is through the 7th auxiliary reclay (J7), 8th auxiliary reclay (J8), the auxiliary contact of the 9th auxiliary reclay (J9) respectively with the secondary side wiring interface (U603 on high voltage potential transformer shell, V603, W603) connect, the outgoing line side b phase of described three-phase isolation transformer is through the tenth auxiliary reclay (J10), 11 auxiliary reclay (J11), the auxiliary contact of the 12 auxiliary reclay (J12) respectively with the secondary side wiring interface (U603 on high voltage potential transformer shell, V603, W603) connect, the outgoing line side c phase of described three-phase isolation transformer is through the 13 auxiliary reclay (J13), 14 auxiliary reclay (J14), the auxiliary contact of the 15 auxiliary reclay (J15) respectively with the secondary side wiring interface (U603 on high voltage potential transformer shell, V603, W603) connect, A.C. contactor, auxiliary reclay is all electrically connected with PLC.
8. high-voltage electric energy measurement according to claim 1 is installed and wiring analysis comprehensive training device, it is characterized in that: also comprise dress table class training Current Transformer analogue means, the primary side of described dress table class training Current Transformer analogue means is connected between two current output terminals of each phase of virtual power supply with the primary side of failure classes training Current Transformer analogue means, described dress table class training Current Transformer analogue means comprises high-tension current inductor shell, 8th A.C. contactor and be positioned at the current transformer of high-tension current inductor shell, the first primary side wiring interface on described high-tension current inductor shell is connected with the second primary side wiring interface through the normally closed contact of the 8th A.C. contactor, first primary side wiring interface of described high-tension current inductor shell is connected with first primary side (p1) of current transformer through the first normally opened contact of the 8th A.C. contactor, second primary side wiring interface of described high-tension current inductor shell is connected with second primary side (p2) of current transformer through the second normally opened contact of the 8th A.C. contactor, two secondary side wiring interfaces of high-tension current inductor shell respectively with two secondary side (s1 of current transformer, s2) connect.
9. high-voltage electric energy measurement according to claim 1 is installed and wiring analysis comprehensive training device, it is characterized in that: also comprise dress table class training voltage simulator for mutual inductor, dress table class training voltage simulator for mutual inductor is arranged on the dress table class training face of actual training device, for real training wiring.
10. high-voltage electric energy measurement according to claim 1 is installed and wiring analysis comprehensive training device, it is characterized in that: the end of incoming cables of described virtual power supply is connected with power inleting terminal, the leading-out terminal of virtual power supply is connected with the primary side wiring interface on high-tension current inductor shell, high voltage potential transformer shell respectively, be in series with scram button and auxiliary reclay (J26) between the end of incoming cables of described virtual power supply and power inleting terminal, auxiliary reclay (J26) is connected with PLC.
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| CN104794967B (en) | 2018-04-06 |
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