CN210051859U - Test lead concentrator for electrical test of high-voltage circuit breaker - Google Patents
Test lead concentrator for electrical test of high-voltage circuit breaker Download PDFInfo
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- CN210051859U CN210051859U CN201920646449.3U CN201920646449U CN210051859U CN 210051859 U CN210051859 U CN 210051859U CN 201920646449 U CN201920646449 U CN 201920646449U CN 210051859 U CN210051859 U CN 210051859U
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Abstract
The utility model discloses a test lead wire concentrator for high voltage circuit breaker electrical test relates to the high voltage circuit breaker that electric power industry transformer substation used and carries out electrical test multiplexer utensil technical field, and its structure is: the external part is provided with 6 binding posts, 6 testing leads, 8 testing terminals and 5 line selection switches, and the internal part is provided with 12 transfer leads; after the concentrator finishes primary wiring, 6 line boards of the circuit breaker are all led to the concentrator, and corresponding buttons are selected according to different test items to perform line selection and wiring combination, so that all test items can be finished. The beneficial effects of the utility model reside in that: the concentrator can complete all test items after completing one-time wiring, can effectively reduce the climbing wiring times of operators and reduce the operation risk, and improves the test efficiency and reliability; the operation time is shortened, and the power supply reliability of the power grid is improved.
Description
Technical Field
The utility model relates to a high voltage circuit breaker that electric power industry transformer substation used carries out electrical test multiplexer utensil technical field, especially relates to a test lead wire concentrator for high voltage circuit breaker electrical test.
Background
The current electrical routine test items of the trolley type vacuum circuit breaker, the open type vacuum circuit breaker and the open type SF6 circuit breaker (hereinafter, referred to as the circuit breaker) are as follows: insulation resistance test, circuit breaker action characteristic test, major loop resistance test, because the electric wire netting plan power failure operating time is short, the equipment is in large quantity, it is few to climb the personnel, wait the factor and cause the experimental work task of circuit breaker heavy, inefficiency, personnel bearing capacity is overweight, it is big to climb the safe risk, climb the many scheduling problem of number of times, secondly because three kinds of different project test have respective experimental lead wire, accomplish the three routine test project of a circuit breaker and need climb and connect, it is at least 6 times to tear open the line, accomplish the routine test project of total station high voltage circuit breaker with certain becoming example of 110kV and need ascend a height and tear open the line number of times for being about: 17 by 6/station =102 times, which is only the number of times the circuit breaker needs to climb up, not counting other devices, it is conceivable that the number of times the circuit breaker needs to climb up is more for completing all the devices of the total station. Therefore, the current problems that efficiency is low, personnel bearing capacity is too heavy, climbing safety risk is large and climbing times are multiple when a breaker electrical test concentrator is urgently needed to be developed and researched so as to solve electrical tests.
Disclosure of Invention
The utility model discloses based on research and development overall thought, consider high voltage circuit breaker insulation resistance, circuit breaker operating characteristic, main loop resistance test lead wire's characteristics, quantity, mode of connection etc. optimize and merge the design, design one kind and once work a telephone switchboard all mode of connection that can satisfy above three test item, connect corresponding instrument and meter from the concentrator and accomplish each test item, can effectively reduce and reduce operation personnel's wiring number of times and operation risk, improved test efficiency and reliability.
The utility model provides a test lead wire concentrator for high voltage circuit breaker electrical test, its structure is: the external part is provided with 6 binding posts, 6 testing leads, 8 testing terminals and 5 line selection switches, and the internal part is provided with 12 transfer leads; each binding post is respectively connected with 1 voltage transfer lead and 1 current transfer lead, and the external part of each binding post is detachably connected with 1 test lead; each test lead comprises 1 voltage wire core and 1 current wire core;
the 6 test leads are respectively: test lead a (Y01), test lead B (Y02), test lead C (Y03), test lead D (Y04), test lead E (Y05), test lead F (Y06);
the 6 binding posts are respectively as follows: a terminal a (J01), a terminal b (J02), a terminal c (J03), a terminal d (J04), a terminal e (J05), and a terminal f (J06);
the 8 test terminals are respectively as follows: a loop voltage positive terminal (13), a loop current positive terminal (14), a loop voltage negative terminal (15), a loop current negative terminal (16), a characteristic A phase terminal (20), a characteristic B phase terminal (21), a characteristic C phase terminal (22) and a grounding terminal (24);
the 5 line selection switches are respectively as follows: the circuit breaker comprises a loop resistor A phase line selection switch (17), a loop resistor B phase line selection switch (18), a loop resistor C phase line selection switch (19), a breaker characteristic test switch (23) and a grounding line selection switch (25).
The 12 transfer leads are respectively: voltage transfer lead U
On A(1) Current transfer lead I
On A(2) Voltage transfer lead U
A is below(3) Current transfer lead I
A is below(4) Voltage transfer lead U
On B(5) Current transfer lead I
On B(6) Voltage transfer lead U
B is below(7) Current transfer lead I
B is below(8) Voltage transfer lead U
C on(9) Current transfer lead I
C on(10) Voltage transfer lead U
C is below(11) Electricity, electricityCirculation lead wire I
C is below（12）。
One side of the loop resistor A phase line selection switch (17) is connected with a transfer lead: voltage transfer lead U
On A(1) And current diverting lead I
On A(2) Voltage transfer lead U
A is below(3) Current transfer lead I
A is below(4) And the other side is connected with a test terminal through a wire: a loop voltage positive terminal (13), a loop current positive terminal (14), a loop voltage negative terminal (15) and a loop current negative terminal (16); when the circuit resistor A phase line selection switch (17) is closed, the above-mentioned transfer lead is connected with test terminal, i.e. voltage transfer lead U
On A(1) Connected to the positive terminal (13) of the loop voltage, the current diverting lead I
On A(2) A voltage transfer line U connected to the positive terminal (14) of the loop current
A is below(3) Connected to the negative terminal (15) of the loop voltage, a current return lead I
A is below(4) And the return circuit current negative terminal (16) is connected, and when the return circuit resistor A phase line selection switch (17) is disconnected, the transfer lead is disconnected with the test terminal.
One side of the loop resistor B phase line selection switch (18) is connected with a transfer lead: voltage transfer lead U
On B(5) Current transfer lead I
On B(6) Voltage transfer lead U
B is below(7) Current transfer lead I
B is below(8) And the other side is connected with a test terminal through a wire: a loop voltage positive terminal (13), a loop current positive terminal (14), a loop voltage negative terminal (15) and a loop current negative terminal (16); when the loop resistance B phase line selection switch (18) is closed, the above-mentioned transfer lead is connected with the test terminal, namely: voltage transfer lead U
On B(5) Connected to the positive terminal (13) of the loop voltage, the current diverting lead I
On B(6) A voltage transfer line U connected to the positive terminal (14) of the loop current
B is below(7) A negative terminal (15) for the return voltage, a current return lead I
B is below(8) When the negative terminal (16) of the loop current and the phase selection switch (18) of the loop resistor B are disconnected, the turning lead wire is disconnected with the test terminal.
One side of the loop resistor C phase line selection switch (19) is connected with: voltage transfer lead U
C on(9) Current transfer lead I
C on(10) Voltage transfer lead U
C is below(11) Current transfer lead I
C is below(12) And the other side is connected with a test terminal through a wire: a loop voltage positive terminal (13), a loop current positive terminal (14), a loop voltage negative terminal (15) and a loop current negative terminal (16); when the loop resistance C phase line selection switch (19) is closed, the above-mentioned transfer lead is connected with the test terminal, namely: voltage transfer lead U
C on(9) Connected to the positive terminal (13) of the loop voltage, the current diverting lead I
C on(10) A voltage transfer line U connected to the positive terminal (14) of the loop current
C is below(11) A negative terminal (15) for the return voltage, a current return lead I
C is below(12) When the negative terminal (16) of the loop current and the phase selection switch (19) of the loop resistor C are disconnected, the turning lead wire is disconnected with the test terminal.
One side of the circuit breaker characteristic test switch (23) is connected with a transfer lead through a wire: voltage transfer lead U
On A(1) Voltage transfer lead U
On B(5) Voltage transfer lead U
C on(9) And the other side is connected with a test terminal through a wire: a characteristic A phase terminal (20), a characteristic B phase terminal (21), and a characteristic C phase terminal (22); when the circuit breaker characteristic test switch (23) is closed, the above-mentioned transfer lead is connected with the test terminal, namely: voltage transfer lead U
On A(1) Connected to a characteristic phase A terminal (20), a voltage transfer line U
On B(5) A phase B connection terminal (21), a voltage transfer line U
C on(9) And the rotating lead wire is connected with the characteristic C phase connection terminal (22), and when the circuit breaker characteristic test switch (23) is disconnected, the rotating lead wire is disconnected with the test terminal.
One side of the grounding line selection switch (25) is connected through a wire: voltage transfer lead U
A is below(3) Voltage transfer lead U
B is below(7) Voltage transfer lead U
C is below(11) The other side is connected with a grounding end (24) through a lead; grounding line selection switch (25)When the switch is closed, the transfer lead is connected with the test terminal, and when the grounding line selection switch (25) is disconnected, the transfer lead is disconnected with the test terminal.
The cross section area of the current wire core of the test lead is 1.6m
2The cross-sectional area of the voltage wire core is 1.5m
2The test lead is provided with a wiring end and a wire clamp end, the wiring end and the wire clamp end are both provided with serial number marks, the wiring end is detachably connected with the wiring terminal, and the wire clamp end is connected with the circuit breaker.
The insulation strength among the test lead wires, between the ground and the connecting terminal and between the ground and the switch fracture is not less than 100G ohm.
A test method for performing an electrical test on a high-voltage circuit breaker by using a test lead concentrator comprises the following steps: the method comprises the following steps:
s01 connecting the test lead to the circuit breaker: the wire clamp of the test lead A (Y01) is connected with the wiring board of the upper port of the phase of the circuit breaker A, the wire clamp of the test lead B (Y02) is connected with the wiring board of the lower port of the phase of the circuit breaker A, the wire clamp of the test lead C (Y03) is connected with the wiring board of the upper port of the phase of the circuit breaker B, the wire clamp of the test lead D (Y04) is connected with the wiring board of the lower port of the phase of the circuit breaker B, the wire clamp of the test lead E (Y05) is connected with the wiring board of the upper port of the phase of the circuit breaker C, and the wire clamp of the;
s02 connecting the test leads to the hub: connecting a terminal of a test lead A (Y01) with a terminal a (J01), a terminal of a test lead B (Y02) with a terminal B (J02), a terminal of a test lead C (Y03) with a terminal C (J03), a terminal of a test lead D (Y04) with a terminal D (J04), a terminal of a test lead E (Y05) with a terminal E (J05), a terminal of a test lead F (Y06) with a terminal F (J06), and a voltage wire core and a current wire core of the test lead are correspondingly connected with a voltage transfer lead and a current transfer lead of a concentrator;
through the 2-step wiring connection of S01 and S02, the voltage transfer lead wire U is finally formed
On A(1) Current transfer lead I
On A(2) Is connected with a wiring board of an upper port of a phase A of the circuit breaker and is provided with a voltage transfer lead U
A is below(3) Current transfer lead I
A is below(4) Is connected with a wiring board of a phase A lower port of the circuit breaker and a voltage transfer lead U
On B(5) Current transfer lead I
On B(6) Is connected with a wiring board of an upper port of a B phase of the circuit breaker and a voltage transfer lead U
B is below(7) Current transfer lead I
B is below(8) Is connected with a wiring board of a lower port of a B phase of the circuit breaker and a voltage transfer lead U
C on(9) Current transfer lead I
C on(10) Is connected with a wiring board of an upper port of a C phase of the circuit breaker and a voltage transfer lead U
C is below(11) Current transfer lead I
C is below(12) The lower port wiring board is connected with the C phase lower port wiring board of the circuit breaker;
loop resistance test of S03: enabling the circuit breaker to be in a switching-on position, sequentially and correspondingly connecting a voltage positive terminal, a current positive terminal, a voltage negative terminal and a current negative terminal of the loop instrument with a loop voltage positive terminal (13), a loop current positive terminal (14), a loop voltage negative terminal (15) and a loop current negative terminal (16) of the concentrator, enabling a loop resistance A phase line selection switch (17) to be in a closed state, disconnecting the rest switches, and testing the loop resistance of the circuit breaker A phase; the circuit resistance B phase line selection switch (18) is in a closed state, the other switches are all disconnected, and the circuit resistance of the circuit resistance B phase of the circuit breaker is tested; the C-phase line selection switch (19) of the loop resistor is in a closed state, and the other switches are all switched off, so that the C-phase loop resistor of the circuit breaker is tested; dismantling the circuit breaker circuit after the circuit breaker circuit resistance test is finished;
and (S04) testing the characteristics of the circuit breaker: a circuit breaker characteristic tester signal terminal A, B, C, O is respectively and correspondingly connected with a characteristic A phase terminal (20), a characteristic B phase terminal (21), a characteristic C phase terminal (22) and a grounding terminal (24) in sequence, so that a circuit breaker characteristic test switch (23) and a grounding line selection switch (25) are both in a closed state, other switches are all disconnected, and circuit breaker characteristic parameters are tested;
s05 insulation resistance test: the method comprises the steps that a breaker fracture insulation test and a breaker integral ground insulation test are divided, a high-voltage output terminal of an insulation resistance meter is sequentially connected with a characteristic A phase terminal (20), a characteristic B phase terminal (21) and a characteristic C phase terminal (22) respectively, and a ground terminal of the insulation resistance meter is connected with a ground terminal (24);
testing the overall insulation resistance of the circuit breaker to the ground: when the breaker is in a switch-on position, the breaker characteristic test switch (23) is switched on, other switches are switched off, and insulation resistance test of the breaker A, B, C relative to the ground is carried out;
testing the breaker fracture insulation resistance: and when the circuit breaker is at the opening position, the circuit breaker characteristic test switch (23) is closed, the grounding line selection switch (25) is closed, the other switches are opened, and the insulation resistance test between the phase openings of the circuit breaker A, B, C is carried out.
The test lead wire and the breaker be connected need climb the operation, all the other operations all can on ground, consequently reduced constructor and climbed the number of times with the wiring.
The beneficial effects of the utility model reside in that: the utility model provides a concentrator accomplishes and leads 6 line boards of circuit breaker on the concentrator on a wiring, designs the line selection circuit board according to the test instrument requirement on the concentrator, selects corresponding button according to different test items and carries out the line selection wiring combination, can accomplish whole test items, and this concentrator can effectively reduce with operation personnel's the number of times of working a telephone switchboard and reduce the operation risk, has improved test efficiency and reliability; the operation time is shortened, and the power supply reliability of the power grid is improved.
Drawings
Fig. 1 is a schematic structural view of the hub of the present invention;
in the figure: 1. voltage transfer lead U
On A2, current diversion lead I
On A3, voltage transfer line U
A is below4, current diversion lead I
A is below5, voltage transfer line U
On B6, current diversion lead I
On B7, voltage transfer line U
B is below8, current diversion I
B is below9, voltage transfer line U
C on10, current diversion line I
C on11, voltage transfer line U
C is below12, current diversion lead I
C is below13, a loop voltage positive terminal, 14, a loop current positive terminal, 15, a loop voltage negative terminal, 16, a loop current negative terminal, 17 and a loop resistor A phase line selection switch18, a loop resistor B phase line selection switch, 19, a loop resistor C phase line selection switch, 20, a characteristic A phase terminal, 21, a characteristic B phase terminal, 22, a characteristic C phase terminal, 23, a breaker characteristic test switch, 24, a grounding terminal, 25 and a grounding line selection switch;
y01, test leads A, Y02, test leads B, Y03, test leads C, Y04, test leads D, Y05, test leads E, Y06 and test leads F;
j01, a terminal a, a J02, a terminal b, a J03, a terminal c, a J04, a terminal d, a J05, a terminal e, a J06 and a terminal f.
Detailed Description
the 6 test leads are respectively: test lead a (Y01), test lead B (Y02), test lead C (Y03), test lead D (Y04), test lead E (Y05), test lead F (Y06);
the 6 binding posts are respectively as follows: a terminal a (J01), a terminal b (J02), a terminal c (J03), a terminal d (J04), a terminal e (J05), and a terminal f (J06);
the 8 test terminals are respectively as follows: a loop voltage positive terminal (13), a loop current positive terminal (14), a loop voltage negative terminal (15), a loop current negative terminal (16), a characteristic A phase terminal (20), a characteristic B phase terminal (21), a characteristic C phase terminal (22) and a grounding terminal (24);
the 5 line selection switches are respectively as follows: the circuit breaker comprises a loop resistor A phase line selection switch (17), a loop resistor B phase line selection switch (18), a loop resistor C phase line selection switch (19), a breaker characteristic test switch (23) and a grounding line selection switch (25).
The 12 transfer leads are respectively: voltage transfer lead U
On A(1) Current transfer lead I
On A(2) Voltage transfer lead U
A is below(3) Current transfer lead I
A is below(4) Voltage transfer lead U
On B(5) Current transfer lead I
On B(6) Voltage transfer lead U
B is below(7) Current transfer lead I
B is below(8) Voltage transfer lead U
C on(9) Current transfer lead I
C on(10) Voltage transfer lead U
C is below(11) Current transfer lead I
C is below（12）。
One side of the loop resistor A phase line selection switch (17) is connected with a transfer lead: voltage transfer lead U
On A(1) And current diverting lead I
On A(2) Voltage transfer lead U
A is below(3) Current transfer lead I
A is below(4) And the other side is connected with a test terminal through a wire: a loop voltage positive terminal (13), a loop current positive terminal (14), a loop voltage negative terminal (15) and a loop current negative terminal (16); when the circuit resistance A phase line selection switch (17) is closed, the transfer lead is connected with the test terminal, and when the circuit resistance A phase line selection switch (17) is disconnected, the transfer lead is disconnected with the test terminal.
One side of the loop resistor B phase line selection switch (18) is connected with a transfer lead: voltage transfer lead U
On B(5) Current transfer lead I
On B(6) Voltage transfer lead U
B is below(7) Current transfer lead I
B is below(8) And the other side is connected with a test terminal through a wire: a loop voltage positive terminal (13), a loop current positive terminal (14), a loop voltage negative terminal (15) and a loop current negative terminal (16); when the circuit resistance B phase line selection switch (18) is closed, the transfer lead is connected with the test terminal, and when the circuit resistance B phase line selection switch (18) is disconnected, the transfer lead is disconnected with the test terminal.
One side of the loop resistor C phase line selection switch (19) is connected with: voltage transfer lead U
C on（9）Current transfer lead I
C on(10) Voltage transfer lead U
C is below(11) Current transfer lead I
C is below(12) And the other side is connected with a test terminal through a wire: a loop voltage positive terminal (13), a loop current positive terminal (14), a loop voltage negative terminal (15) and a loop current negative terminal (16); when the loop resistance C phase line selection switch (19) is closed, the transfer lead is connected with the test terminal, and when the loop resistance C phase line selection switch (19) is disconnected, the transfer lead is disconnected with the test terminal.
One side of the circuit breaker characteristic test switch (23) is connected with a transfer lead through a wire: voltage transfer lead U
On A(1) Voltage transfer lead U
On B(5) Voltage transfer lead U
C on(9) And the other side is connected with a test terminal through a wire: a characteristic A phase terminal (20), a characteristic B phase terminal (21), and a characteristic C phase terminal (22); when the circuit breaker characteristic test switch (23) is closed, the rotary lead is connected with the test terminal, and when the circuit breaker characteristic test switch (23) is disconnected, the rotary lead is disconnected with the test terminal.
One side of the grounding line selection switch (25) is connected through a wire: voltage transfer lead U
A is below(3) Voltage transfer lead U
B is below(7) Voltage transfer lead U
C is below(11) The other side is connected with a grounding end (24) through a lead; when the grounding line selection switch (25) is closed, the rotary lead is connected with the test terminal, and when the grounding line selection switch (25) is disconnected, the rotary lead is disconnected with the test terminal.
The cross section area of the current wire core of the test lead is 1.6m
2The cross-sectional area of the voltage wire core is 1.5m
2The test lead is provided with a wiring end and a wire clamp end, the wiring end and the wire clamp end are both provided with serial number marks, the wiring end is detachably connected with the wiring terminal, and the wire clamp end is connected with the circuit breaker.
The insulation strength among the test lead wires, between the ground and the connecting terminal and between the ground and the switch fracture is not less than 100G ohm.
s01 connecting the test lead to the circuit breaker: the wire clamp of the test lead A (Y01) is connected with the wiring board of the upper port of the phase of the circuit breaker A, the wire clamp of the test lead B (Y02) is connected with the wiring board of the lower port of the phase of the circuit breaker A, the wire clamp of the test lead C (Y03) is connected with the wiring board of the upper port of the phase of the circuit breaker B, the wire clamp of the test lead D (Y04) is connected with the wiring board of the lower port of the phase of the circuit breaker B, the wire clamp of the test lead E (Y05) is connected with the wiring board of the upper port of the phase of the circuit breaker C, and the wire clamp of the;
s02 connecting the test leads to the hub: connecting a terminal of a test lead A (Y01) with a terminal a (J01), a terminal of a test lead B (Y02) with a terminal B (J02), a terminal of a test lead C (Y03) with a terminal C (J03), a terminal of a test lead D (Y04) with a terminal D (J04), a terminal of a test lead E (Y05) with a terminal E (J05), a terminal of a test lead F (Y06) with a terminal F (J06), and a voltage wire core and a current wire core of the test lead are correspondingly connected with a voltage transfer lead and a current transfer lead of a concentrator;
loop resistance test of S03: enabling the circuit breaker to be in a switching-on position, sequentially and correspondingly connecting a voltage positive terminal, a current positive terminal, a voltage negative terminal and a current negative terminal of the loop instrument with a loop voltage positive terminal (13), a loop current positive terminal (14), a loop voltage negative terminal (15) and a loop current negative terminal (16) of the concentrator, enabling a loop resistance A phase line selection switch (17) to be in a closed state, disconnecting the rest switches, and testing the loop resistance of the circuit breaker A phase; the circuit resistance B phase line selection switch (18) is in a closed state, the other switches are all disconnected, and the circuit resistance of the circuit resistance B phase of the circuit breaker is tested; the C-phase line selection switch (19) of the loop resistor is in a closed state, and the other switches are all switched off, so that the C-phase loop resistor of the circuit breaker is tested; dismantling the circuit breaker circuit after the circuit breaker circuit resistance test is finished;
and (S04) testing the characteristics of the circuit breaker: a circuit breaker characteristic tester signal terminal A, B, C, O is respectively and correspondingly connected with a characteristic A phase terminal (20), a characteristic B phase terminal (21), a characteristic C phase terminal (22) and a grounding terminal (24) in sequence, so that a circuit breaker characteristic test switch (23) and a grounding line selection switch (25) are both in a closed state, other switches are all disconnected, and circuit breaker characteristic parameters are tested;
s05 insulation resistance test: the method comprises the steps that a breaker fracture insulation test and a breaker integral ground insulation test are divided, a high-voltage output terminal of an insulation resistance meter is sequentially connected with a characteristic A phase terminal (20), a characteristic B phase terminal (21) and a characteristic C phase terminal (22) respectively, and a ground terminal of the insulation resistance meter is connected with a ground terminal (24);
testing the overall insulation resistance of the circuit breaker to the ground: when the breaker is in a switch-on position, the breaker characteristic test switch (23) is switched on, other switches are switched off, and insulation resistance test of the breaker A, B, C relative to the ground is carried out;
testing the breaker fracture insulation resistance: and when the circuit breaker is at the opening position, the circuit breaker characteristic test switch (23) is closed, the grounding line selection switch (25) is closed, the other switches are opened, and the insulation resistance test between the phase openings of the circuit breaker A, B, C is carried out.
Claims (8)
1. A test lead concentrator for high-voltage circuit breaker electrical test, its characterized in that: the external part is provided with 6 binding posts, 6 testing leads, 8 testing terminals and 5 line selection switches, and the internal part is provided with 12 transfer leads; each binding post is internally connected with 1 voltage transfer lead and 1 current transfer lead, and is externally detachably connected with 1 test lead; each test lead comprises 1 voltage wire core and 1 current wire core;
the 6 test leads are respectively: test lead a (Y01), test lead B (Y02), test lead C (Y03), test lead D (Y04), test lead E (Y05), test lead F (Y06);
the 6 binding posts are respectively as follows: a terminal a (J01), a terminal b (J02), a terminal c (J03), a terminal d (J04), a terminal e (J05), and a terminal f (J06);
the 8 test terminals are respectively as follows: a loop voltage positive terminal (13), a loop current positive terminal (14), a loop voltage negative terminal (15), a loop current negative terminal (16), a characteristic A phase terminal (20), a characteristic B phase terminal (21), a characteristic C phase terminal (22) and a grounding terminal (24);
the 5 line selection switches are respectively as follows: a loop resistance A phase line selection switch (17), a loop resistance B phase line selection switch (18), a loop resistance C phase line selection switch (19), a circuit breaker characteristic test switch (23) and a grounding line selection switch (25);
the 12 transfer leads are respectively: voltage transfer lead U
On A(1) Current transfer lead I
On A(2) Voltage transfer lead U
A is below(3) Current transfer lead I
A is below(4) Voltage transfer lead U
On B(5) Current transfer lead I
On B(6) Voltage transfer lead U
B is below(7) Current transfer lead I
B is below(8) Voltage transfer lead U
C on(9) Current transfer lead I
C on(10) Voltage transfer lead U
C is below(11) Current transfer lead I
C is below（12）。
2. A test lead hub for electrical testing of a high voltage circuit breaker according to claim 1, wherein: one side of the loop resistor A phase line selection switch (17) is connected with a transfer lead: voltage transfer lead U
On A(1) And current diverting lead I
On A(2) Voltage transfer lead U
A is below(3) Current transfer lead I
A is below(4) And the other side is connected with a test terminal through a wire: a loop voltage positive terminal (13), a loop current positive terminal (14), a loop voltage negative terminal (15) and a loop current negative terminal (16); when the circuit resistance A phase line selection switch (17) is closed, the transfer lead is connected with the test terminal, and when the circuit resistance A phase line selection switch (17) is disconnected, the transfer lead is disconnected with the test terminal.
3. The method of claim 1A test lead concentrator for high voltage circuit breaker electrical test which characterized in that: one side of the loop resistor B phase line selection switch (18) is connected with a transfer lead: voltage transfer lead U
On B(5) Current transfer lead I
On B(6) Voltage transfer lead U
B is below(7) Current transfer lead I
B is below(8) And the other side is connected with a test terminal through a wire: a loop voltage positive terminal (13), a loop current positive terminal (14), a loop voltage negative terminal (15) and a loop current negative terminal (16); when the circuit resistance B phase line selection switch (18) is closed, the transfer lead is connected with the test terminal, and when the circuit resistance B phase line selection switch (18) is disconnected, the transfer lead is disconnected with the test terminal.
4. A test lead hub for electrical testing of a high voltage circuit breaker according to claim 1, wherein: one side of the loop resistor C phase line selection switch (19) is connected with: voltage transfer lead U
C on(9) Current transfer lead I
C on(10) Voltage transfer lead U
C is below(11) Current transfer lead I
C is below(12) And the other side is connected with a test terminal through a wire: a loop voltage positive terminal (13), a loop current positive terminal (14), a loop voltage negative terminal (15) and a loop current negative terminal (16); when the loop resistance C phase line selection switch (19) is closed, the transfer lead is connected with the test terminal, and when the loop resistance C phase line selection switch (19) is disconnected, the transfer lead is disconnected with the test terminal.
5. A test lead hub for electrical testing of a high voltage circuit breaker according to claim 1, wherein: one side of the circuit breaker characteristic test switch (23) is connected with a transfer lead through a wire: voltage transfer lead U
On A(1) Voltage transfer lead U
On B(5) Voltage transfer lead U
C on(9) And the other side is connected with a test terminal through a wire: a characteristic A phase terminal (20), a characteristic B phase terminal (21), and a characteristic C phase terminal (22)) (ii) a When the circuit breaker characteristic test switch (23) is closed, the rotary lead is connected with the test terminal, and when the circuit breaker characteristic test switch (23) is disconnected, the rotary lead is disconnected with the test terminal.
6. A test lead hub for electrical testing of a high voltage circuit breaker according to claim 1, wherein: one side of the grounding line selection switch (25) is connected through a wire: voltage transfer lead U
A is below(3) Voltage transfer lead U
B is below(7) Voltage transfer lead U
C is below(11) The other side is connected with a grounding end (24) through a lead; when the grounding line selection switch (25) is closed, the rotary lead is connected with the test terminal, and when the grounding line selection switch (25) is disconnected, the rotary lead is disconnected with the test terminal.
7. A test lead hub for electrical testing of a high voltage circuit breaker according to any of claims 1-6, wherein: the cross section area of the current wire core of the test lead is 1.6m
2The cross-sectional area of the voltage wire core is 1.5m
2The test lead is provided with a wiring end and a wire clamp end, the wiring end and the wire clamp end are both provided with serial number marks, the wiring end is detachably connected with the wiring terminal, and the wire clamp end is connected with the circuit breaker.
8. A test lead hub for electrical testing of a high voltage circuit breaker according to any of claims 1-6, wherein: the insulation strength between the test leads, between the ground and the connecting terminal and between the ground and the switch fracture is not less than 100G ohm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920646449.3U CN210051859U (en) | 2019-05-08 | 2019-05-08 | Test lead concentrator for electrical test of high-voltage circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920646449.3U CN210051859U (en) | 2019-05-08 | 2019-05-08 | Test lead concentrator for electrical test of high-voltage circuit breaker |
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| CN210051859U true CN210051859U (en) | 2020-02-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991536A (en) * | 2019-05-08 | 2019-07-09 | 国网青海省电力公司海东供电公司 | A kind of test lead hub and method for high-voltage circuitbreaker electrical test |
| CN113406535A (en) * | 2021-06-17 | 2021-09-17 | 合肥京东方视讯科技有限公司 | Test board and test method for detecting electronic wire between boards |
-
2019
- 2019-05-08 CN CN201920646449.3U patent/CN210051859U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991536A (en) * | 2019-05-08 | 2019-07-09 | 国网青海省电力公司海东供电公司 | A kind of test lead hub and method for high-voltage circuitbreaker electrical test |
| CN113406535A (en) * | 2021-06-17 | 2021-09-17 | 合肥京东方视讯科技有限公司 | Test board and test method for detecting electronic wire between boards |
| CN113406535B (en) * | 2021-06-17 | 2023-10-24 | 合肥京东方视讯科技有限公司 | Test board and test method for detecting electronic wires between boards |
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