CN202383217U - Integrated test bench of transformer - Google Patents
Integrated test bench of transformer Download PDFInfo
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- CN202383217U CN202383217U CN 201120550246 CN201120550246U CN202383217U CN 202383217 U CN202383217 U CN 202383217U CN 201120550246 CN201120550246 CN 201120550246 CN 201120550246 U CN201120550246 U CN 201120550246U CN 202383217 U CN202383217 U CN 202383217U
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Abstract
The utility model relates to an integrated test bench of a transformer. The integrated test bench comprises a test bench body, a CPU (Central Processing Unit), a keyboard, a liquid crystal display, an on-off control circuit and a test wiring switching circuit and further comprises a bushing tap grounding terminal, a wireless communication module, a remote controller, an LED (Light-Emitting Diode) display and an LED alarm lamp screen. The integrated test bench has the following advantages: (1) the leading-out terminal of a transformer winding can be automatically switched to a corresponding test instrument according to an experimental project, wiring at an equipment side and an instrument side is not needed to be changed, less people are needed for test, the test time is short, and the operation is safe; and (2) test projects such as tests on the winding insulation resistance, winding dielectric loss, winding direct-current resistance, low-voltage short-circuit impedance, on-load switch recording, winding transformation ratio and sleeve of the transformer can be completed through once wiring.
Description
Technical field
The utility model relates to a kind of transformer integration test platform, uses this testing table primary connection can accomplish the winding insulation resistance of transformer, winding Jie damage, winding D.C. resistance, low-voltage short-circuit impedance, test events such as loaded switch record ripple, winding no-load voltage ratio and sleeve pipe test.
Background technology
In the transformer test, when changing pilot project, often need the change test connection at present.During test, 2 testing crews changes of the normal reservation in main transformer top wiring, separate unit main transformer test personnel selection is many, test period is long.Simultaneously, the instrumentation personnel need frequently carry out instrument wiring conversion, very easily cause wiring error, and gently then data error is big, heavy then device damage, personnel's electric shock.
In addition, testing tool is difficult to neatly put at the scene, and the field instrumentation wiring is disorderly and unsystematic.
The utility model content
The utility model technical matters to be solved provides the transformer integration test platform of a kind of disposable completion transformer side and various testing tool side joint line and the test connection that can automatically switch.
The technical scheme that the utility model technical solution problem is adopted:
The utility model comprises testing table stage body, CPU, keyboard, LCDs, ON-OFF control circuit and test connection commutation circuit; Said keyboard connects the respective input of CPU, the input end of the road output termination ON-OFF control circuit of said CPU, its another road output termination LCDs, the control end of the output termination test connection commutation circuit of said ON-OFF control circuit; Said Transformer Winding outlet terminal connects the connection terminal of each testing tool through the test connection commutation circuit.
The utility model also comprises the bottom shielding of bushing ground terminal.
The utility model also comprises wireless communication module, telepilot, light-emitting diode display and LED alarm lamp screen.
Said testing table stage body comprises operator's console, instrument display unit and supporting leg; Said operator's console and instrument display unit flexibly connect through the web joint that has gathering sill; Two web joints are fixed on the upper end of two side, instrument display unit rear portion; The bearing pin that is arranged in both sides, the operator's console lower left corner penetrates gathering sill, and the pin-and-hole that is positioned on the two side, the operator's console lower right corner faces gathering sill.
The beneficial effect of the utility model is following:
(1) can automatically the Transformer Winding outlet terminal be switched on the corresponding testing tool according to experimental project, need not to change equipment side, instrument side wiring, the test personnel selection is few, and test period is short, handling safety.
(2) primary connection can be accomplished winding insulation resistance, winding Jie damage, winding D.C. resistance, low-voltage short-circuit impedance, the test events such as loaded switch record ripple, winding no-load voltage ratio and sleeve pipe test of transformer.
(3) wiring of main transformer top is changed to testing table, realize landing operation.
(4) can be used with the electric test instrument of various different models, have stronger versatility.
(5) collapsible test platform structure, volume is little, in light weight, is easy to carry, and can in various transformer stations, move easily and use.
Description of drawings
Fig. 1 is the theory diagram of the utility model.
Fig. 2 is the circuit theory diagrams of ON-OFF control circuit.
Fig. 3 is the contactor circuit schematic diagram of ON-OFF control circuit.
Fig. 4 is the circuit theory diagrams of test connection commutation circuit.
Fig. 5 is the synoptic diagram of bottom shielding of bushing ground terminal.
The structural representation of Fig. 6 testing table stage body.
Fig. 7 is the synoptic diagram of testing table stage body after folding (lay down supporting leg after).
Fig. 8 is the control panel synoptic diagram.
In Fig. 4; 1-3 is respectively the high, medium and low voltage side winding earth terminal in the Transformer Winding outlet transfer connection terminal; 4 for measuring connection terminal, and 5 for being connected to the connection terminal of on-load shunting switch tester, and 6 for connecing the connection terminal of voltage ratio tester; 7 connect the connection terminal of low-voltage impedance instrument, and 8 for connecing the connection terminal of instrument for measuring DC resistance.
In Fig. 6～7,9 operator's console, 10 gathering sills, 11 pin-and-holes, 12 web joints, 13 supporting legs, 14 instrument display units, 15 bearing pins.
Embodiment
Embodiment by shown in Fig. 1-8 can know that it comprises testing table stage body, CPU, keyboard, LCDs, ON-OFF control circuit and test connection commutation circuit; Said keyboard connects the respective input of CPU, the input end of the road output termination ON-OFF control circuit of said CPU, its another road output termination LCDs, the control end of the output termination test connection commutation circuit of said ON-OFF control circuit; Said Transformer Winding outlet terminal connects the connection terminal (see figure 1) of each measurement device device through the test connection commutation circuit.
Present embodiment also comprises bottom shielding of bushing ground terminal (see figure 5).
Present embodiment also comprises wireless communication module, telepilot, light-emitting diode display and LED alarm lamp screen (see figure 1).
The said ON-OFF control circuit (see figure 2) of present embodiment is made up of resistance R 1～R27, photoelectrical coupler GD1～GD9, transistor VT1～VT18, relay CJ1～CJ9, contactor CK1～CK32; The contactor circuit that said ON-OFF control circuit is controlled by the identical control branch road of 9 line structures and they is formed; Wherein the 1 tunnel control route resistance R 1～R3, transistor VT1～VT2, photoelectrical coupler GD1, relay CJ1 form; The base stage of transistor VT1 connects the corresponding output end of said CPU through resistance R 1, the grounded emitter of transistor VT1, the input end of said photoelectrical coupler GD1 and the collector that is connected on transistor VT1 after resistance R 2 is connected and+5V between; Output terminal 3 pin of photoelectrical coupler GD1 connect the base stage of transistor VT2 through resistance R 3, relay CJ1 be connected on transistor VT2 collector and+12V between, the grounded emitter of transistor VT2;
Said contactor circuit (see figure 3) is made up of normally opened contact CJ1-1～CJ9-1 of contactor CK1～CK32, relay CJ1～CJ9;
The break-make of said relay CJ1 control contactor CK1-CK4, promptly be connected on again with after the normally opened contact CJ1-1 of relay CJ1 connects after the contactor CK1-CK4 parallel connection+12V and ground between;
The break-make of said relay CJ2 control contactor CK5-CK12, promptly be connected on again with after the normally opened contact CJ2-1 of relay CJ2 connects after the contactor CK5-CK12 parallel connection+12V and ground between;
The break-make of said relay CJ3 control contactor CK13-CK20, promptly be connected on again with after the normally opened contact CJ3-1 of relay CJ3 connects after the contactor CK13-CK20 parallel connection+12V and ground between;
The break-make of said relay CJ4 control contactor CK21-CK22, promptly be connected on again with after the normally opened contact CJ4-1 of relay CJ4 connects after the contactor CK21-CK22 parallel connection+12V and ground between;
The break-make of said relay CJ5 control contactor CK23-CK24, promptly be connected on again with after the normally opened contact CJ5-1 of relay CJ5 connects after the contactor CK23-CK24 parallel connection+12V and ground between;
The break-make of said relay CJ6 control contactor CK25-CK26, promptly be connected on again with after the normally opened contact CJ6-1 of relay CJ6 connects after the contactor CK25-CK26 parallel connection+12V and ground between;
The break-make of said relay CJ7 control contactor CK27-CK28, promptly be connected on again with after the normally opened contact CJ7-1 of relay CJ7 connects after the contactor CK27-CK28 parallel connection+12V and ground between;
The break-make of said relay CJ8 control contactor CK29-CK30, promptly be connected on again with after the normally opened contact CJ8-1 of relay CJ8 connects after the contactor CK29-CK30 parallel connection+12V and ground between;
The break-make of said relay CJ9 control contactor CK31-CK32, promptly be connected on again with after the normally opened contact CJ9-1 of relay CJ9 connects after the contactor CK31-CK32 parallel connection+12V and ground between;
The said test connection commutation circuit of present embodiment (see figure 4) comprises transformer outlet transfer connection terminal, measures the normally opened contact CK1-1 of connection terminal 4, instrument connection terminal, said contactor CK1-CK32～CK32-1 composition;
Said transformer outlet transfer connection terminal is made up of high, medium and low voltage side winding connection terminal 1,2,3; High-pressure side winding connection terminal 1 is respectively A
H, B
H, C
H, O
H, P
HMedium voltage side winding connection terminal 2 is respectively A
M, B
M, C
M, O
M, P
MLow-pressure side winding connection terminal 3 is respectively A
L, B
L, C
L, O
L, P
LIts middle connecting terminal P
H, P
M, P
LBonding;
Said measuring earth terminal 4 is by the sub-I of current terminal
O, I
A, I
B, I
CWith voltage measurement terminal U
O, U
A, U
B, U
CForm;
Said instrument connection terminal is made up of the connection terminal that is connected to the on-load shunting switch tester 5, the connection terminal 6 that connects the voltage ratio tester, the connection terminal 7 that connects the low-voltage impedance instrument, the connection terminal 8 that connects instrument for measuring DC resistance;
The said connection terminal 5 that is connected to the on-load shunting switch tester is respectively U
O, U
A, U
B, U
C
The said connection terminal 6 that connects the voltage ratio tester is respectively U
O, U
A, U
B, U
C, I
O, I
A, I
B, I
C
The said connection terminal 7 that connects the low pressure impedance instrument is respectively U
O, U
A, U
B, U
C, I
O, I
A, I
B, I
CThe said connection terminal 8 that connects instrument for measuring DC resistance is respectively U
+, U
-, I
+, I
-
The said U that is connected to the connection terminal 5 of on-load shunting switch tester
O, U
A, U
B, U
COften open contact CK1-1～CK4-1 respectively and meet the sub-I of current terminal in the said measurement connection terminal 4
O, I
A, I
B, I
C
The said U that connects the connection terminal 6 of voltage ratio tester
O, U
A, U
B, U
C, I
O, I
A, I
B, I
COften open contact CK5-1～CK12-1 respectively and meet the sub-I of current terminal in the said measurement connection terminal 4
O, I
A, I
B, I
CWith the sub-U of voltage terminal
O, U
A, U
B, U
C
The said U that connects the connection terminal 7 of low-voltage impedance instrument
O, U
A, U
B, U
C, I
O, I
A, I
B, I
COften open contact CK13-1～CK20-1 respectively and meet the sub-U of voltage terminal in the said measurement connection terminal 4
O, U
A, U
B, U
CWith the sub-I of current terminal
O, I
A, I
B, I
C
The said U that connects the connection terminal 8 of instrument for measuring DC resistance
+Often open contact CK21-1, CK23-1, CK25-1 respectively and meet the sub-U of voltage terminal that measures in the connection terminal 4
O, U
A, U
B
The said U that connects the connection terminal 8 of instrument for measuring DC resistance
-Often open contact CK27-1, CK29-1, CK31-1 respectively and meet the sub-U of voltage terminal that measures in the connection terminal 4
A, U
B, U
C
The said I that connects the connection terminal 8 of instrument for measuring DC resistance
+Often open contact CK22-1, CK24-1, CK26-1 respectively and meet the sub-I of current terminal that measures in the connection terminal 4
O, I
A, I
B
The said I that connects the connection terminal 8 of instrument for measuring DC resistance
-Often open contact CK28-1, CK30-1, CK32-1 respectively and meet the sub-I of current terminal that measures in the connection terminal 4
A, I
B, I
C
The said bottom shielding of bushing ground terminal of present embodiment is by bushing end screen ground terminal (see figure 5) O
H, A
H, B
H, C
HWith middle pressure end screen ground terminal O
M, A
M, B
M, C
MForm.
The said testing table stage body of present embodiment (seeing Fig. 6,7) comprises operator's console 9, instrument display unit 14 and supporting leg 13; Said operator's console 9 flexibly connects through the web joint 12 that has gathering sill 10 with instrument display unit 14; Two web joints 12 are fixed on the upper end of two side, instrument display unit 14 rear portion; The bearing pin 15 that is arranged in both sides, operator's console 9 lower left corner penetrates gathering sill 10, and the pin-and-hole 11 that is positioned on the two side, operator's console 9 lower right corner faces gathering sill 10.
In the present embodiment, also comprise power circuit, power circuit except that provide+the DC current circuit of 5V and+12V, also provide～three-phase four-wire power of 380V, comprise a three-phase regulator in addition.
Method of application when using present embodiment to test is following:
Before the test, use the Insulation Test line, the outlet of transformer high, medium and low voltage winding is drawn down, be connected to the high pressure of operator's console, middle pressure, low pressure winding connection terminal.The 380V three-phase four-wire power is connected to the operator's console power supply terminal.
One, transformer characteristic test
1. load ratio bridging switch is recorded ripple
When carrying out the test of load ratio bridging switch record ripple, with transformer high-voltage winding A
H, B
H, C
H, 0
HThe phase outlet terminal is connected to the current terminal of measuring terminals.In, the outlet of low pressure winding is middle pressure, low pressure winding connection terminal place's short circuit ground connection of operator's console.
Select pilot project " record ripple " through the control panel button; CPU receives operational order; Corresponding signal output pin sends high level signal, makes the 1 tunnel control branch road conducting work, relay CJ1 conducting; Again by CJ1-1 contact conducting contactor CK1 to CK4 (as shown in Figure 3), thereby will measure wiring conducting to on-load tap changer tester (as shown in Figure 4).Simultaneously, display screen pilot project viewing area shows " record ripple ", and the LCDs top shows green caution bar, and expression is not pressurization as yet.
Press " work " key on the control panel, the automatic energized of controllable electric power socket, LCDs top exhibit red caution bar, p-wire is connected the loaded switch tester automatically simultaneously.Operation loaded switch tester carries out loaded switch record wave measurement.Test finishes, and stops pressurization by " stopping " key, the test apparatus outage, and the LCDs top shows green caution bar.
2. voltage ratio is measured
When carrying out the voltage ratio measurement, the p-wire that electric pressure is high in the tested winding is plugged on current terminal of measuring connection terminal, the p-wire that electric pressure is low is plugged on voltage terminal of measuring connection terminal.
Select pilot project " no-load voltage ratio " through the control panel button; CPU receives operational order; Corresponding signal output pin sends high level signal, makes the 2 tunnel control branch road conducting work, relay CJ2 conducting; By CJ2-1 contact conducting contactor CK5 to CK12 (as shown in Figure 3), p-wire is connected the voltage ratio tester automatically again.LCDs shows " no-load voltage ratio " simultaneously.
Get into trystate by " work " key, controllable electric power socket energized, liquid crystal display top exhibit red caution bar, operating voltage carries out the voltage ratio test than tester simultaneously.Test finishes, and withdraws from trystate by " stopping " key, the test apparatus outage, and the liquid crystal display top shows green caution bar.
3. the low-voltage impedance method is tested winding deformation
When carrying out transformer low-voltage impedance experiments, need external pressure regulator, the supply socket of pressure regulator input termination pressure regulator, output voltage regulator connects low pressure impedance instrument experiment power supply input end.
When measuring the impedance of high pressure centering pressure short circuit in winding, the high pressure winding terminal connects the measurement connection terminal, the sub-short circuit of middle pressure winding terminal, low pressure winding terminal open circuit; When in measuring, pressing the impedance of low pressure short circuit in winding, middle pressure winding terminal connects the measurement connection terminal, low pressure short circuit in winding, high pressure winding open circuit; When measuring high pressure to the impedance of low pressure short circuit in winding, the high pressure winding terminal connects the measurement connection terminal, low pressure short circuit in winding, middle pressure winding open circuit.
Select pilot project " impedance " through the control panel button, LCDs shows " impedance ".CPU receives operational order; Corresponding signal output pin sends high level signal, makes the 3 tunnel control branch road conducting work, relay CJ3 conducting; By CJ3-1 contact conducting contactor CK13 to CK20 (as shown in Figure 3), p-wire is connected winding low-voltage impedance instrument automatically again.LCDs shows " impedance " simultaneously.
Get into trystate by " work " key, controllable electric power socket energized, LCDs top exhibit red caution bar, p-wire is connected transformer low-voltage impedance instrument automatically simultaneously.The three-phase supply disconnecting link that closes is connected the pressure regulator power supply, and the manual adjustments pressure regulator is to predetermined value, and the operating impedance tester carries out transformer low-voltage testing impedance.Test finishes, and the manual adjustments pressure regulator returns zero, cuts off three-phase supply output switch, and by " stopping " key, trystate is withdrawed from the test apparatus outage, and the liquid crystal display top shows green caution bar.
4. winding D.C. resistance is measured
Will by examination side test downlead therefrom the patchcord terminal pull up, respectively voltage, electric current line are plugged into the measurement connection terminal by corresponding color, non-by examination side winding open circuit.Select pilot project " straight resistance " through the control panel button, the test of system default is AB mutually.CPU receives operational order; Corresponding signal output pin sends high level signal, and relay CJ5, CJ8 conducting are again by CJ5-1 contact conducting contactor CK23, CK24; By CJ8-1 contact conducting contactor CK29, CK30, the dependence test line is connected the winding D.C. resistance tester automatically.By " work " key, LCDs top exhibit red caution bar, after the test, the test apparatus discharge, by " stopping " key, the LCDs top shows green caution bar.
By " commutation " key, control system selects test product AB, BC, CA, A0, B0, C0 to carry out the direct current resistance test mutually successively.
When measuring BC phase time, relay CJ6, CJ9 conducting, contactor CK25, CK26, CK31, CK32 conducting;
When measuring CA phase time, relay CJ5, CJ9 conducting, contactor CK23, CK24, CK31, CK32 conducting;
When measuring A0 phase time, relay CJ4, CJ7 conducting, contactor CK21, CK22, CK27, CK28 conducting;
When measuring B0 phase time, relay CJ4, CJ8 conducting, contactor CK21, CK22, CK29, CK30 conducting;
When measuring C0 phase time, relay CJ4, CJ9 conducting, contactor CK21, CK22, CK31, CK32 conducting.Behind the test phase EOT, fully discharge gets final product commutation by behind " stopping " key.
Two, transformer insulated test
1. megger test
Transformer high-voltage, middle pressure, low pressure winding p-wire are connected to respectively on high pressure, middle pressure, the low pressure winding connection terminal (as shown in Figure 4), and short circuit.Insulation resistance meter L termination is tried on the winding connection end, non-test winding connection terminal ground connection.Select pilot project " insulation " through the control panel button, display screen pilot project viewing area shows " insulation ".Get into trystate by " work " key, controllable electric power socket energized, instrument powers on, LCDs top exhibit red caution bar.
The operation Insulation Resistance Tester carries out insulation resistance, absorptance, polarization index measurement; Step-down is discharged after measuring completion; Withdraw from trystate by " stopping " key, the liquid crystal display top shows green caution bar, and display screen " work indication " lamp goes out; Lamp is bright " to stop indication ", cuts off the instrument working power simultaneously.
2. Transformer Winding Jie undermines the electric capacity test
Transformer high-voltage, middle pressure, low pressure winding p-wire are connected to respectively on high pressure, middle pressure, the low pressure winding connection terminal (as shown in Figure 4), and short circuit.Dielectric loss tester high-voltage output end connects by on the examination winding connection end, non-test winding connection terminal ground connection.Selecting pilot project through control center's panel button is " be situated between and decrease ", and display screen pilot project viewing area shows " be situated between and decrease ".Get into trystate by " work " key, controllable electric power socket energized, instrument powers on, liquid crystal display top exhibit red caution bar.
Operation Jie decreases tester and carries out dielectric loss measurement, and step-down discharge after measurement is accomplished is pressed " stopping " key and withdrawed from trystate, and the liquid crystal display top shows green caution bar.
3. transformer high-voltage sleeve pipe Jie undermines the electric capacity test
Use the Insulation Test line that each lateral capacitance molded cannula end screen of transformer is drawn down before the test, be connected to bottom shielding of bushing ground terminal (see figure 5).
Sleeve pipe is situated between and undermines the electric capacitance measurement pilot production with positive wiring method of testing.Using is situated between decreases the several branch casing pressurizations of tester high-pressure side to the relevant voltage side; Use the bottom shielding of bushing downlead to gather current signal simultaneously; Connect dielectric loss tester C
end, form test loop.
Sleeve pipe be situated between to decrease, when electric capacity is measured tested bottom shielding of bushing connection plug pulled up from the bottom shielding of bushing ground terminal and connect dielectric loss tester C
end and measure, and other bottom shielding of bushing downlead is still through bottom shielding of bushing ground terminal ground connection.After the off-test, will turn back to corresponding bottom shielding of bushing ground terminal by this phase bottom shielding of bushing downlead plug.
Three, the romote controlled locking mode is selected
Press " selection " button on the control panel, can select the romote controlled locking pattern.Under the romote controlled locking pattern, can use a teleswitch pilot project selection operation and test pressurized operation are carried out safety interlocking.
Claims (7)
1. a transformer integration test platform is characterized in that comprising testing table stage body, CPU, keyboard, LCDs, ON-OFF control circuit and test connection commutation circuit; Said keyboard connects the respective input of CPU, the input end of the road output termination ON-OFF control circuit of said CPU, its another road output termination LCDs, the control end of the output termination test connection commutation circuit of said ON-OFF control circuit; Said Transformer Winding outlet terminal connects the connection terminal of each testing tool through the test connection commutation circuit.
2. transformer integration test platform according to claim 1 is characterized in that also comprising the bottom shielding of bushing ground terminal.
3. transformer integration test platform according to claim 2 is characterized in that also comprising wireless communication module, telepilot, light-emitting diode display and LED alarm lamp screen.
4. according to claim 1 or 2 or 3 described transformer integration test platforms, it is characterized in that said ON-OFF control circuit is made up of resistance R 1～R27, photoelectrical coupler GD1～GD9, transistor VT1～VT18, relay CJ1～CJ9, contactor CK1～CK32; The contactor circuit that said ON-OFF control circuit is controlled by the identical control branch road of 9 line structures and they is formed; Wherein the 1 tunnel control route resistance R 1～R3, transistor VT1～VT2, photoelectrical coupler GD1, relay CJ1 form; The base stage of transistor VT1 connects the corresponding output end of said CPU through resistance R 1, the grounded emitter of transistor VT1, the input end of said photoelectrical coupler GD1 and the collector that is connected on transistor VT1 after resistance R 2 is connected and+5V between; Output terminal 3 pin of photoelectrical coupler GD1 connect the base stage of transistor VT2 through resistance R 3, relay CJ1 be connected on transistor VT2 collector and+12V between, the grounded emitter of transistor VT2;
Said contactor circuit is made up of normally opened contact CJ1-1～CJ9-1 of contactor CK1～CK32, relay CJ1～CJ9;
The break-make of said relay CJ1 control contactor CK1-CK4, promptly be connected on again with after the normally opened contact CJ1-1 of relay CJ1 connects after the contactor CK1-CK4 parallel connection+12V and ground between;
The break-make of said relay CJ2 control contactor CK5-CK12, promptly be connected on again with after the normally opened contact CJ2-1 of relay CJ2 connects after the contactor CK5-CK12 parallel connection+12V and ground between;
The break-make of said relay CJ3 control contactor CK13-CK20, promptly be connected on again with after the normally opened contact CJ3-1 of relay CJ3 connects after the contactor CK13-CK20 parallel connection+12V and ground between;
The break-make of said relay CJ4 control contactor CK21-CK22, promptly be connected on again with after the normally opened contact CJ4-1 of relay CJ4 connects after the contactor CK21-CK22 parallel connection+12V and ground between;
The break-make of said relay CJ5 control contactor CK23-CK24, promptly be connected on again with after the normally opened contact CJ5-1 of relay CJ5 connects after the contactor CK23-CK24 parallel connection+12V and ground between;
The break-make of said relay CJ6 control contactor CK25-CK26, promptly be connected on again with after the normally opened contact CJ6-1 of relay CJ6 connects after the contactor CK25-CK26 parallel connection+12V and ground between;
The break-make of said relay CJ7 control contactor CK27-CK28, promptly be connected on again with after the normally opened contact CJ7-1 of relay CJ7 connects after the contactor CK27-CK28 parallel connection+12V and ground between;
The break-make of said relay CJ8 control contactor CK29-CK30, promptly be connected on again with after the normally opened contact CJ8-1 of relay CJ8 connects after the contactor CK29-CK30 parallel connection+12V and ground between;
The break-make of said relay CJ9 control contactor CK31-CK32, promptly be connected on again with after the normally opened contact CJ9-1 of relay CJ9 connects after the contactor CK31-CK32 parallel connection+12V and ground between.
5. transformer integration test platform according to claim 4 is characterized in that said test connection commutation circuit comprises that normally opened contact CK1-1～CK32-1 of transformer outlet transfer connection terminal, measurement connection terminal (4), instrument connection terminal, said contactor CK1-CK32 forms;
Said transformer outlet transfer connection terminal is made up of high, medium and low voltage side winding connection terminal (1,2,3); High-pressure side winding connection terminal (1) is respectively A
H, B
H, C
H, O
H, P
HMedium voltage side winding connection terminal (2) is respectively A
M, B
M, C
M, O
M, P
MLow-pressure side winding connection terminal (3) is respectively A
L, B
L, C
L, O
L, P
LIts middle connecting terminal P
H, P
M, P
LBonding;
Said measuring earth terminal (4) is by the sub-I of current terminal
O, I
A, I
B, I
CWith voltage measurement terminal U
O, U
A, U
B, U
CForm;
Said instrument connection terminal is made up of the connection terminal that is connected to the on-load shunting switch tester (5), the connection terminal (6) that connects the voltage ratio tester, the connection terminal (7) that connects the low-voltage impedance instrument, the connection terminal (8) that connects instrument for measuring DC resistance;
The said connection terminal (5) that is connected to the on-load shunting switch tester is respectively U
O, U
A, U
B, U
C
The said connection terminal (6) that connects the voltage ratio tester is respectively U
O, U
A, U
B, U
C, I
O, I
A, I
B, I
C
The said connection terminal (7) that connects the low pressure impedance instrument is respectively U
O, U
A, U
B, U
C, I
O, I
A, I
B, I
C
The said connection terminal (8) that connects instrument for measuring DC resistance is respectively U
+, U
-, I
+, I
-
The said U that is connected to the connection terminal (5) of on-load shunting switch tester
O, U
A, U
B, U
COften open contact CK1-1～CK4-1 respectively and meet the sub-I of current terminal in the said measurement connection terminal (4)
O, I
A, I
B, I
C
The said U that connects the connection terminal (6) of voltage ratio tester
O, U
A, U
B, U
C, I
O, I
A, I
B, I
COften open contact CK5-1～CK12-1 respectively and meet the sub-I of current terminal in the said measurement connection terminal (4)
O, I
A, I
B, I
CWith the sub-U of voltage terminal
O, U
A, U
B, U
C
The said U that connects the connection terminal (7) of low-voltage impedance instrument
O, U
A, U
B, U
C, I
O, I
A, I
B, I
COften open contact CK13-1～CK20-1 respectively and meet the sub-U of voltage terminal in the said measurement connection terminal (4)
O, U
A, U
B, U
CWith the sub-I of current terminal
O, I
A, I
B, I
C
The said U that connects the connection terminal (8) of instrument for measuring DC resistance
+Often open contact CK21-1, CK23-1, CK25-1 respectively and meet the sub-U of voltage terminal that measures in the connection terminal (4)
O, U
A, U
B
The said U that connects the connection terminal (8) of instrument for measuring DC resistance
-Often open contact CK27-1, CK29-1, CK31-1 respectively and meet the sub-U of voltage terminal that measures in the connection terminal (4)
A, U
B, U
C
The said I that connects the connection terminal (8) of instrument for measuring DC resistance
+Often open contact CK22-1, CK24-1, CK26-1 respectively and meet the sub-I of current terminal that measures in the connection terminal (4)
O, I
A, I
B
The said I that connects the connection terminal (8) of instrument for measuring DC resistance
-Often open contact CK28-1, CK30-1, CK32-1 respectively and meet the sub-I of current terminal that measures in the connection terminal (4)
A, I
B, I
C
6. transformer integration test platform according to claim 5 is characterized in that said bottom shielding of bushing ground terminal is by bushing end screen ground terminal O
H, A
H, B
H, C
HWith middle pressure end screen ground terminal O
M, A
M, B
M, C
MForm.
7. transformer integration test platform according to claim 6 is characterized in that said testing table stage body comprises operator's console (9), instrument display unit (14) and supporting leg (13); Said operator's console (9) flexibly connects through the web joint (12) that has gathering sill (10) with instrument display unit (14); Two web joints (12) are fixed on the upper end of instrument display unit (14) two side, rear portion; The bearing pin (15) that is arranged in operator's console (9) both sides, the lower left corner penetrates gathering sill (10), and the pin-and-hole (11) that is positioned on operator's console (9) two side, the lower right corner faces gathering sill (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120550246 CN202383217U (en) | 2011-12-26 | 2011-12-26 | Integrated test bench of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120550246 CN202383217U (en) | 2011-12-26 | 2011-12-26 | Integrated test bench of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202383217U true CN202383217U (en) | 2012-08-15 |
Family
ID=46631710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120550246 Expired - Lifetime CN202383217U (en) | 2011-12-26 | 2011-12-26 | Integrated test bench of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202383217U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508087A (en) * | 2011-12-26 | 2012-06-20 | 石家庄供电公司 | Integrated test stand for transformers |
| CN102841257A (en) * | 2012-09-10 | 2012-12-26 | 江苏省电力公司苏州供电公司 | Instrument for measuring single-phase short-circuit impedance of transformer |
| CN103063884A (en) * | 2012-12-25 | 2013-04-24 | 北京四方继保自动化股份有限公司 | Wireless testing terminal |
| CN103809116A (en) * | 2014-02-28 | 2014-05-21 | 国家电网公司 | Short circuit performance testing system and method |
| CN106940390A (en) * | 2017-02-14 | 2017-07-11 | 国网新疆电力公司伊犁供电公司 | Straight-flow system Insulation monitoring switching device |
| CN108693432A (en) * | 2018-04-27 | 2018-10-23 | 国家电网公司 | A kind of tester of deformation of transformer winding |
| CN109470926A (en) * | 2018-03-02 | 2019-03-15 | 国网浙江省电力公司嘉兴供电公司 | A kind of cable direct current resistance m easurem ent device and its application method |
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2011
- 2011-12-26 CN CN 201120550246 patent/CN202383217U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508087A (en) * | 2011-12-26 | 2012-06-20 | 石家庄供电公司 | Integrated test stand for transformers |
| CN102508087B (en) * | 2011-12-26 | 2014-01-22 | 国家电网公司 | Integrated test stand for transformers |
| CN102841257A (en) * | 2012-09-10 | 2012-12-26 | 江苏省电力公司苏州供电公司 | Instrument for measuring single-phase short-circuit impedance of transformer |
| CN102841257B (en) * | 2012-09-10 | 2015-10-07 | 江苏省电力公司苏州供电公司 | For testing the instrument of transformer single-phase short circuit impedance |
| CN103063884A (en) * | 2012-12-25 | 2013-04-24 | 北京四方继保自动化股份有限公司 | Wireless testing terminal |
| CN103063884B (en) * | 2012-12-25 | 2015-09-02 | 北京四方继保自动化股份有限公司 | A kind of wireless test terminal |
| CN103809116A (en) * | 2014-02-28 | 2014-05-21 | 国家电网公司 | Short circuit performance testing system and method |
| CN103809116B (en) * | 2014-02-28 | 2018-01-19 | 国家电网公司 | A kind of short-circuit capability test system and its method |
| CN106940390A (en) * | 2017-02-14 | 2017-07-11 | 国网新疆电力公司伊犁供电公司 | Straight-flow system Insulation monitoring switching device |
| CN106940390B (en) * | 2017-02-14 | 2023-08-08 | 国网新疆电力公司伊犁供电公司 | Insulation detection switching device of direct current system |
| CN109470926A (en) * | 2018-03-02 | 2019-03-15 | 国网浙江省电力公司嘉兴供电公司 | A kind of cable direct current resistance m easurem ent device and its application method |
| CN108693432A (en) * | 2018-04-27 | 2018-10-23 | 国家电网公司 | A kind of tester of deformation of transformer winding |
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Owner name: HEBEI ELECTRIC POWER CORPORATION SHIJIAZHUANG POWE Effective date: 20130411 Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: SHIJIAZHUANG POWER SUPPLY COMPANY Effective date: 20130411 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 050091 SHIJIAZHUANG, HEBEI PROVINCE TO: 100031 XICHENG, BEIJING |
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| TR01 | Transfer of patent right |
Effective date of registration: 20130411 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: Hebei Electric Power Corporation Patentee after: Shijiazhuang Power Supply Co.,Ltd. Address before: 050091 Shijiazhuang power supply company, No. 529 Zhonghua South Street, Hebei, Shijiazhuang Patentee before: Shijiazhuang Power Supply Co.,Ltd. |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20120815 Effective date of abandoning: 20140122 |
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| RGAV | Abandon patent right to avoid regrant |