CN208568962U - A kind of 10KV high voltage cable fault simulation test circuit and device - Google Patents
A kind of 10KV high voltage cable fault simulation test circuit and device Download PDFInfo
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- CN208568962U CN208568962U CN201821179303.4U CN201821179303U CN208568962U CN 208568962 U CN208568962 U CN 208568962U CN 201821179303 U CN201821179303 U CN 201821179303U CN 208568962 U CN208568962 U CN 208568962U
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Abstract
The utility model provides a kind of 10KV high voltage cable fault simulation test circuit and device, including U phase line cable, V phase line cable, W phase line cable and GND ground cable；Wherein, the both ends of each phase line cable are equipped with connecting terminal, intermediate position is equipped with switch, and and is connected to the branch formed by a capacitor between each phase line cable and GND ground cable, the branch formed is concatenated by two resistance, being switched by a switch and the branch that is formed of a capacitor series and independent one；Two-by-two between phase line cable and be connected to a resistance and one switch.Implement the utility model, can comprehensively simulate the impedance of each phase line occurs in 10KV high voltage cable failure and each phase line cable.
Description
Technical field
The utility model relates to cable fault analog detection technical field more particularly to a kind of 10KV high voltage cable failure moulds
Quasi- test circuit and device.
Background technique
10KV high voltage cable is usually used on the overhead transmission line of electric system.Since the fault detection of 10KV high voltage cable is compared
Danger, so that staff can not specifically know the fault condition of 10KV high voltage cable, to have no way of in maintenance process to event
Barrier reason is determined, brings many inconvenience to work, and cause the repair time too long.
Therefore, in order to allow staff can intuitive, safety the fault condition to 10KV high voltage cable recognize, Hen Duoqi
Industry, which all designs, corresponding failure simulation device, but above-mentioned failure simulation device and not perfect, so that 10KV high voltage cable
There are one-sidedness for fault simulation.For example, the failure of single phase line can only be simulated；For another example, it can only simulate between two phase lines
Impedance.Therefore, a kind of 10KV high voltage cable fault simulation test circuit is needed, can comprehensively be simulated in 10KV high voltage cable
The impedance of failure and each phase line cable that each phase line occurs.
Utility model content
The technical problem to be solved by the embodiment of the utility model is, providing a kind of 10KV high voltage cable fault simulation survey
Circuit and device are tried, the resistance of each phase line occurs in 10KV high voltage cable failure and each phase line cable can be comprehensively simulated
It is anti-.
In order to solve the above-mentioned technical problem, the utility model embodiment provides a kind of 10KV high voltage cable fault simulation survey
Try circuit and device, comprising: U phase line cable, V phase line cable, W phase line cable and GND ground cable；Wherein,
The U phase line cable be equipped with positioned at both ends connecting terminal J1 and connecting terminal J2 and be located in the middle first
Switch S1；Between the U phase line cable and the GND ground cable and be connected to the first branch formed by first capacitor device C1,
The second branch formed is concatenated by first resistor R1 and the tenth resistance R10, shape is concatenated by the tenth switch S10 and the 4th capacitor C4
At third branch and the 14th switch S14；It is gone back on the first resistor R1 and is connected to the 4th switch S4；
The V phase line cable be equipped with positioned at both ends connecting terminal J3 and connecting terminal J4 and be located in the middle second
Switch S2；Between the V phase line cable and the GND ground cable and be connected to the second capacitor C2 formation the 4th branch, by
Second resistance R2 and eleventh resistor R11 concatenates the 5th branch to be formed, is concatenated by the 11st switch S11 and the 5th capacitor C5
The 6th branch and the 15th switch S15 formed；It is gone back on the second resistance R2 and is connected to the 5th switch S5；
The W phase line cable is equipped with the connecting terminal J5 and connecting terminal J6 for being located at both ends and is located in the middle third
Switch S3；Between the W phase line cable and the GND ground cable and be connected to third capacitor C3 formation the 7th branch, by
3rd resistor R3 and twelfth resistor R12 concatenates the 8th branch to be formed, is concatenated by the 12nd switch S12 and the 6th capacitor C6
The 9th branch and sixteenmo formed closes S16；It is gone back on the 3rd resistor R3 and is connected to the 6th switch S6；
Wherein, between the U phase line cable and the V phase line cable and the 4th resistance R4, and the 4th resistance are connected to
R4 is upper and is connected to the 7th switch S7；
Wherein, between the V phase line cable and the W phase line cable and the 5th resistance R5, and the 5th resistance are connected to
R5 is upper and is connected to the 8th switch S8；
Wherein, between the W phase line cable and the U phase line cable and the 6th resistance R6, and the 6th resistance are connected to
R6 is upper and is connected to the 9th switch S9.
Wherein, it when the first switch S1 is disconnected, simulates U phase line cable and open-circuit fault occurs；It opens when described second
When closing S2 disconnection, simulates V phase line cable and open-circuit fault occur；When the third switch S3 is disconnected, W phase line cable is simulated
There is open-circuit fault.
Wherein, as the first switch S1 and the 4th switch S4 is closed and the 7th switch S7, the tenth opens
When pass S10 and the 14th switch S14 is disconnected, U phase line cable low resistive state over the ground is simulated, and impedance value is the tenth electricity
Hinder the resistance value of R10；As the first switch S1 and the 14th switch S14 is closed and the 7th switch S7, the tenth
When switch S10 and the 4th switch S4 are disconnected, simulates U phase line cable and short trouble occur；When the first switch S1 be closed,
And the 4th switch S4, the 7th switch S7, the tenth switch S10 and the 14th switch S14 simulate U phase line when disconnecting
Cable high-impedance state over the ground, and impedance value is the sum of the resistance value of the first resistor R1 and the tenth resistance R10；
As the second switch S2 and the 5th switch S5 is closed and the 8th switch S8, the 11st switch
When S11 and the 15th switch S15 are disconnected, V phase line cable low resistive state over the ground is simulated, and impedance value is the 11st electricity
Hinder the resistance value of R11；As the second switch S2 and the 15th switch S15 is closed and the 8th switch S8, the tenth
When one switch S11 and the 5th switch S5 are disconnected, simulates V phase line cable and short trouble occur；When the second switch S2 is closed
When conjunction and the 5th switch S5, the 8th switch S8, the 11st switch S11 and the 15th switch S15 are disconnected, V is simulated
Phase line cable high-impedance state over the ground, and impedance value is the sum of the resistance value of the second resistance R2 and the eleventh resistor R11；
As the third switch S3 and the 6th switch S6 is closed and the 9th switch S9, the 12nd switch
When S12 and sixteenmo pass S16 are disconnected, W phase line cable low resistive state over the ground is simulated, and impedance value is the 12nd electricity
Hinder the resistance value of R12；As the third switch S3 and sixteenmo pass S16 is closed and the 9th switch S9, the tenth
When two switch S12 and the 6th switch S6 are disconnected, simulates W phase line cable and short trouble occur；When the three switches S3 be closed,
And the 6th switch S6, the 9th switch S9, the 12nd switch S12 and sixteenmo simulate W phase when closing S16 and disconnecting
Line cable high-impedance state over the ground, and impedance value is the sum of the resistance value of the 3rd resistor R3 and the twelfth resistor R12.
Wherein, when the first switch S1, second switch S2 and the 7th switch S7 are closed and third switch
S3, the 4th switch S4, the 5th switch S5, the 8th switch S8, the 9th switch S9, the tenth switch S10, the 11st switch S11, the tenth
When four switch S14 and the 15th switch S15 are disconnected, simulates between U phase line cable and V phase line cable and phase fault occur
Failure；When the first switch S1 and the second switch S2 are closed and the third switch S3, the 4th switch S4,
Five switch S5, the 7th switch S7, the 8th switch S8, the 9th switch S9, the tenth switch S10, the 11st switch S11, the 14th are opened
It closes S14 and the 15th switch S15 and disconnects the interphase impedance constantly simulated between U phase line cable and V phase line cable, and hinder
The resistance value that anti-value is the 4th resistance R4；
When the second switch S2, third switch S2 and the 8th switch S8 are closed and the first switch S1, the 5th
Switch S5, the 6th switch S6, the 7th switch S7, the 9th switch S9, the 11st switch S11, the 12nd switch S12, the 15th are opened
When pass S15 and sixteenmo pass S16 are disconnected, simulates between V phase line cable and W phase line cable and the event of phase fault occur
Barrier；As the second switch S2 and the third switch S3 is closed and the first switch S1, the 5th switch S5, the 6th
Switch S6, the 7th switch S7, the 8th switch S8, the 9th switch S9, the 11st switch S11, the 12nd switch S12, the 15th are opened
It closes S15 and sixteenmo closes S16 and disconnects the interphase impedance constantly simulated between V phase line cable and W phase line cable, and hinder
The resistance value that anti-value is the 5th resistance R5；
When the first switch S1, third switch S3 and the 9th switch S9 are closed and the second switch S2, the 4th
Switch S4, the 6th switch S6, the 7th switch S7, the 8th switch S8, the tenth switch S10, the 12nd switch S12, the 14th switch
When S14 and sixteenmo pass S16 are disconnected, simulates between W phase line cable and U phase line cable and the failure of phase fault occur；
As the first switch S1 and the third switch S3 is closed and the second switch S2, the 4th switch S4, the 6th switch
S6, the 7th switch S7, the 8th switch S8, the 9th switch S9, the tenth switch S10, the 12nd switch S12, the 14th switch S14 and
Sixteenmo closes S16 and disconnects the interphase impedance constantly simulated between W phase line cable and U phase line cable, and impedance value is institute
State the resistance value of the 6th resistance R6.
Wherein, as the first switch S1 and the tenth switch S10 is closed and the 7th switch S7 and the 9th
When switch S9 is disconnected, the ground capacitance of U phase line cable is simulated, and capacitance is the first capacitor device C1 and described the
The sum of the capacitance of four capacitor C4；As first switch S1 closure and the 7th switch S7, the 9th switch S9 and the
When ten switch S10 are disconnected, the ground capacitance of U phase line cable is simulated, and capacitance is the electricity of the first capacitor device C1
Capacity；
When the second switch S2 and the 11st switch S11 are closed and the 7th switch S7 and the 8th is opened
When pass S8 is disconnected, the ground capacitance of V phase line cable is simulated, and capacitance is the second capacitor C2 and the described 5th
The sum of the capacitance of capacitor C5；As second switch S2 closure and the 7th switch S7, the 8th switch S8 and the tenth
When one switch S11 is disconnected, the ground capacitance of V phase line cable is simulated, and capacitance is the electricity of the second capacitor C2
Capacity；
When the third switch S3 and the 12nd switch S12 are closed and the 8th switch S8 and the 9th is opened
When pass S9 is disconnected, the ground capacitance of W phase line cable is simulated, and capacitance is the third capacitor C3 and the described 6th
The sum of the capacitance of capacitor C6；As third switch S3 closure and the 8th switch S8, the 9th switch S9 and the tenth
When two switch S12 are disconnected, the ground capacitance of W phase line cable is simulated, and capacitance is the electricity of the third capacitor C3
Capacity.
It wherein, further include the 7th resistance R7, the 8th resistance R8, the 9th resistance R9 and the 13rd switch S13；Wherein,
One end of the 7th resistance R7 is connected on the U phase line cable, and the one of the other end and the 8th resistance R8
The one end at end, one end of the 9th resistance R9 and the 13rd switch S13 is connected；
The other end of the 8th resistance R8 is connected with the V phase line cable；
The other end of the 9th resistance R9 is connected with the W phase line cable；
The other end of the 13rd switch S13 is grounded.
Wherein, as the 13rd switch S13, the U phase line cable, V phase line cable and W phase line cable are put in realization
Electric treatment.
The utility model embodiment additionally provides a kind of 10KV high voltage cable fault simulation test device, including above-mentioned
10KV high voltage cable fault simulation tests circuit.
Implement the utility model embodiment, has the following beneficial effects:
The utility model only need to be under experimental situation, by setting three-phase phase line cable and GND ground cable, and in phase
Different resistance, switch and capacitor are set in line cable, and the open and-shut mode for then controlling different switches simulates each phase line line
Cable different failure and impedance, to comprehensively simulate each phase line occurs in 10KV high voltage cable failure and each phase line line
The impedance of cable.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, obtains other drawings based on these drawings the scope for still falling within the utility model.
Fig. 1 is the connection signal that the 10KV high voltage cable fault simulation that the utility model embodiment one provides tests circuit
Figure.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type is described in further detail.
As shown in Figure 1, a kind of 10KV high voltage cable fault simulation test provided is electric in the utility model embodiment one
Road, comprising: U phase line cable, V phase line cable, W phase line cable and GND ground cable；Wherein,
U phase line cable is equipped with the connecting terminal J1 and connecting terminal J2 for being located at both ends and is located in the middle first switch
S1；Between U phase line cable and GND ground cable and it is connected to the first branch formed by first capacitor device C1, by first resistor R1
The second branch to be formed is concatenated with the tenth resistance R10, the third branch formed is concatenated by the tenth switch S10 and the 4th capacitor C4
And the 14th switch S14；It is gone back on first resistor R1 and is connected to the 4th switch S4；
V phase line cable is equipped with the connecting terminal J3 and connecting terminal J4 for being located at both ends and is located in the middle second switch
S2；Between V phase line cable and GND ground cable and be connected to the 4th branch of the second capacitor C2 formation, by second resistance R2 and
Eleventh resistor R11 concatenates the 5th branch to be formed, concatenates the formed the 6th by the 11st switch S11 and the 5th capacitor C5
Road and the 15th switch S15；It is gone back on second resistance R2 and is connected to the 5th switch S5；
W phase line cable is equipped with the connecting terminal J5 and connecting terminal J6 for being located at both ends and is located in the middle third switch
S3；Between W phase line cable and GND ground cable and be connected to the 7th branch of third capacitor C3 formation, by 3rd resistor R3 and
Twelfth resistor R12 concatenates the 8th branch to be formed, concatenates the formed the 9th by the 12nd switch S12 and the 6th capacitor C6
Road and sixteenmo close S16；It is gone back on 3rd resistor R3 and is connected to the 6th switch S6；
Wherein, between U phase line cable and V phase line cable and it is connected to the 4th resistance R4, and on the 4th resistance R4 and is connected to
Seven switch S7；
Wherein, between V phase line cable and W phase line cable and it is connected to the 5th resistance R5, and on the 5th resistance R5 and is connected to
Eight switch S8；
Wherein, between W phase line cable and U phase line cable and it is connected to the 6th resistance R6, and on the 6th resistance R6 and is connected to
Nine switch S9.
10KV high voltage cable fault simulation in the utility model embodiment one tests circuit, and physical simulation process is as follows:
(1) it when first switch S1 is disconnected, simulates U phase line cable and open-circuit fault occurs.
(2) it when second switch S2 is disconnected, simulates V phase line cable and open-circuit fault occurs.
(3) it when third switch S3 is disconnected, simulates W phase line cable and open-circuit fault occurs.
(4) as first switch S1 and the 4th switch S4 is closed and the 7th switch S7, the tenth switch S10 and the 14th
When switch S14 is disconnected, U phase line cable low resistive state over the ground is simulated, and impedance value is the resistance value of the tenth resistance R10.
(5) as first switch S1 and the 14th switch S14 is closed and the 7th switch S7, the tenth switch S10 and the 4th
When switch S4 is disconnected, simulates U phase line cable and short trouble occur.
(6) when first switch S1 closure and the 4th switch S4, the 7th switch S7, the switch of the tenth switch S10 and the 14th
When S14 is disconnected, U phase line cable high-impedance state over the ground is simulated, and impedance value is the resistance of first resistor R1 and the tenth resistance R10
The sum of value.
(7) as second switch S2 and the 5th switch S5 is closed and the 8th switch S8, the 11st switch S11 and the tenth
When five switch S15 are disconnected, V phase line cable low resistive state over the ground is simulated, and impedance value is the resistance value of eleventh resistor R11.
(8) as second switch S2 and the 15th switch S15 is closed and the 8th switch S8, the 11st switch S11
And the 5th switch S5 when disconnecting, it simulates V phase line cable and short trouble occurs.
(9) when second switch S2 closure and the 5th switch S5, the 8th switch S8, the 11st switch S11 and the 15th are opened
When pass S15 is disconnected, V phase line cable high-impedance state over the ground is simulated, and impedance value is second resistance R2 and eleventh resistor R11
The sum of resistance value.
(10) as third switch S3 and the 6th switch S6 is closed and the 9th switch S9, the 12nd switch S12 and the tenth
When six switch S16 are disconnected, W phase line cable low resistive state over the ground is simulated, and impedance value is the resistance value of twelfth resistor R12.
(11) it is closed and the 9th switch S9, the 12nd switchs when third switch S3 and the sixteenmo close S16
When S12 and the 6th switch S6 are disconnected, simulates W phase line cable and short trouble occur.
(12) when three switch S3 closure and the 6th switch S6, the 9th switch S9, the 12nd switch S12 and sixteenmo
When pass S16 is disconnected, W phase line cable high-impedance state over the ground is simulated, and impedance value is 3rd resistor R3 and twelfth resistor R12
The sum of resistance value.
(13) when first switch S1, second switch S2 and the 7th switch S7 are closed and third switch S3, the 4th switch
S4, the 5th switch S5, the 8th switch S8, the 9th switch S9, the tenth switch S10, the 11st switch S11, the 14th switch S14 and
When 15th switch S15 is disconnected, simulates between U phase line cable and V phase line cable and the failure of phase fault occur.
(14) when first switch S1 and second switch S2 are closed and third switch S3, the 4th switch S4, the 5th switch
S5, the 7th switch S7, the 8th switch S8, the 9th switch S9, the tenth switch S10, the 11st switch S11, the 14th switch S14 and
15th switch S15 disconnects the interphase impedance constantly simulated between U phase line cable and V phase line cable, and impedance value is the
The resistance value of four resistance R4.
(15) as second switch S2, third switch S2 and the 8th switch S8 is closed and first switch S1, the 5th switch
S5, the 6th switch S6, the 7th switch S7, the 9th switch S9, the 11st switch S11, the 12nd switch S12, the 15th switch S15
And sixteenmo closes S16 when disconnecting, and simulates between V phase line cable and W phase line cable and the failure of phase fault occurs.
(16) as second switch S2 and third switch S3 is closed and first switch S1, the 5th switch S5, the 6th switch
S6, the 7th switch S7, the 8th switch S8, the 9th switch S9, the 11st switch S11, the 12nd switch S12, the 15th switch S15
And sixteenmo closes S16 and disconnects the interphase impedance constantly simulated between V phase line cable and W phase line cable, and impedance value is
The resistance value of 5th resistance R5.
(17) as first switch S1, third switch S3 and the 9th switch S9 is closed and second switch S2, the 4th switch
S4, the 6th switch S6, the 7th switch S7, the 8th switch S8, the tenth switch S10, the 12nd switch S12, the 14th switch S14 and
When sixteenmo pass S16 is disconnected, simulates between W phase line cable and U phase line cable and the failure of phase fault occur.
(18) as first switch S1 and third switch S3 is closed and second switch S2, the 4th switch S4, the 6th switch
S6, the 7th switch S7, the 8th switch S8, the 9th switch S9, the tenth switch S10, the 12nd switch S12, the 14th switch S14 and
Sixteenmo closes S16 and disconnects the interphase impedance constantly simulated between W phase line cable and U phase line cable, and impedance value is the
The resistance value of six resistance R6.
(19) as first switch S1 and the tenth switch S10 is closed and the 7th switch S7 and the 9th switch S9 is equal
When disconnection, the ground capacitance of U phase line cable is simulated, and capacitance is the capacitor of first capacitor device C1 and the 4th capacitor C4
The sum of amount.
(20) when first switch S1 closure and the 7th switch S7, the 9th switch S9 and the tenth switch S10 are disconnected,
The ground capacitance of U phase line cable is simulated, and capacitance is the capacitance of first capacitor device C1.
(21) when second switch S2 and the 11st switch S11 are closed and the 7th switch S7 and the 8th switch S8 is disconnected
When opening, the ground capacitance of V phase line cable is simulated, and capacitance is the capacitance of the second capacitor C2 and the 5th capacitor C5
The sum of.
(22) when second switch S2 closure and the 7th switch S7, the 8th switch S8 and the 11st switch S11 are disconnected
When, the ground capacitance of V phase line cable is simulated, and capacitance is the capacitance of the second capacitor C2.
(23) when third switch S3 and the 12nd switch S12 are closed and the 8th switch S8 and the 9th switch S9 is disconnected
When opening, the ground capacitance of W phase line cable is simulated, and capacitance is the capacitance of third capacitor C3 and the 6th capacitor C6
The sum of.
(24) when third switch S3 closure and the 8th switch S8, the 9th switch S9 and the 12nd switch S12 are disconnected
When, the ground capacitance of W phase line cable is simulated, and capacitance is the capacitance of third capacitor C3.
It further include the 7th to realize to the electricity release on U, V, W phase line cable in the utility model embodiment one
Resistance R7, the 8th resistance R8, the 9th resistance R9 and the 13rd switch S13；Wherein,
One end of 7th resistance R7 is connected on U phase line cable, one end of the other end and the 8th resistance R8, the 9th resistance R9
One end and the 13rd switch S13 one end be connected；
The other end of 8th resistance R8 is connected with V phase line cable；
The other end of 9th resistance R9 is connected with W phase line cable；
The other end of 13rd switch S13 is grounded.
(25) it as the 13rd switch S13, realizes to U phase line cable, V phase line cable and W phase line cable discharge treatment.
Circuit is tested corresponding to the 10KV high voltage cable fault simulation in the utility model embodiment one, the utility model is real
It applies example two and additionally provides a kind of 10KV high voltage cable fault simulation test device, including the 10KV in the utility model embodiment one
High voltage cable fault simulation tests circuit.Since the 10KV high voltage cable fault simulation in the utility model embodiment two tests electricity
Road tests circuit structure having the same with the 10KV high voltage cable fault simulation in the utility model embodiment one and connect pass
System specifically refers to the related content of the 10KV high voltage cable fault simulation test circuit in the utility model embodiment one,
This is no longer repeated one by one.
Implement the utility model embodiment, has the following beneficial effects:
The utility model only need to be under experimental situation, by setting three-phase phase line cable and GND ground cable, and in phase
Different resistance, switch and capacitor are set in line cable, and the open and-shut mode for then controlling different switches simulates each phase line line
Cable different failure and impedance, to comprehensively simulate each phase line occurs in 10KV high voltage cable failure and each phase line line
The impedance of cable.
Above disclosures are merely preferred embodiments of the utility model, the utility model cannot be limited with this certainly
Interest field, therefore equivalent variations made according to the claim of the utility model still fall within the scope of the utility model.
Claims (8)
1. a kind of 10KV high voltage cable fault simulation tests circuit characterized by comprising U phase line cable, V phase line cable, W
Phase line cable and GND ground cable；Wherein,
The U phase line cable is equipped with the connecting terminal J1 and connecting terminal J2 for being located at both ends and is located in the middle first switch
S1；Between the U phase line cable and the GND ground cable and it is connected to the first branch formed by first capacitor device C1, by
One resistance R1 and the tenth resistance R10 concatenates the second branch to be formed, is concatenated and is formed by the tenth switch S10 and the 4th capacitor C4
Third branch and the 14th switch S14；It is gone back on the first resistor R1 and is connected to the 4th switch S4；
The V phase line cable is equipped with the connecting terminal J3 and connecting terminal J4 for being located at both ends and is located in the middle second switch
S2；Between the V phase line cable and the GND ground cable and it is connected to the 4th branch of the second capacitor C2 formation, by second
Resistance R2 and eleventh resistor R11 concatenates the 5th branch to be formed, is concatenated and formed by the 11st switch S11 and the 5th capacitor C5
The 6th branch and the 15th switch S15；It is gone back on the second resistance R2 and is connected to the 5th switch S5；
The W phase line cable is equipped with the connecting terminal J5 and connecting terminal J6 for being located at both ends and is located in the middle third switch
S3；Between the W phase line cable and the GND ground cable and it is connected to the 7th branch of third capacitor C3 formation, by third
Resistance R3 and twelfth resistor R12 concatenates the 8th branch to be formed, is concatenated and formed by the 12nd switch S12 and the 6th capacitor C6
The 9th branch and sixteenmo close S16；It is gone back on the 3rd resistor R3 and is connected to the 6th switch S6；
Wherein, between the U phase line cable and the V phase line cable and it is connected to the 4th resistance R4, and on the 4th resistance R4
And it is connected to the 7th switch S7；
Wherein, between the V phase line cable and the W phase line cable and it is connected to the 5th resistance R5, and on the 5th resistance R5
And it is connected to the 8th switch S8；
Wherein, between the W phase line cable and the U phase line cable and it is connected to the 6th resistance R6, and on the 6th resistance R6
And it is connected to the 9th switch S9.
2. 10KV high voltage cable fault simulation as described in claim 1 tests circuit, which is characterized in that when the first switch
When S1 is disconnected, simulates U phase line cable and open-circuit fault occur；When the second switch S2 is disconnected, simulates V phase line cable and go out
Existing open-circuit fault；When the third switch S3 is disconnected, simulates W phase line cable and open-circuit fault occur.
3. 10KV high voltage cable fault simulation as described in claim 1 tests circuit, which is characterized in that when the first switch
S1 and the 4th switch S4 is closed and the 7th switch S7, the tenth switch S10 and the 14th switch S14 are disconnected
When, U phase line cable low resistive state over the ground is simulated, and impedance value is the resistance value of the tenth resistance R10；When the first switch
S1 and the 14th switch S14 is closed and the 7th switch S7, the tenth switch S10 and the 4th switch S4 are disconnected
When, it simulates U phase line cable and short trouble occurs；As first switch S1 closure and the 4th switch S4, the 7th open
When pass S7, the tenth switch S10 and the 14th switch S14 are disconnected, U phase line cable high-impedance state, and impedance value over the ground is simulated
For the sum of the resistance value of the first resistor R1 and the tenth resistance R10；
When the second switch S2 and the 5th switch S5 be closed and the 8th switch S8, the 11st switch S11 and
When 15th switch S15 is disconnected, V phase line cable low resistive state over the ground is simulated, and impedance value is the eleventh resistor R11
Resistance value；As the second switch S2 and the 15th switch S15 is closed and the 8th switch S8, the 11st opens
When pass S11 and the 5th switch S5 is disconnected, simulates V phase line cable and short trouble occur；When the second switch S2 be closed, with
And the 5th switch S5, the 8th switch S8, the 11st switch S11 and the 15th switch S15 simulate V phase line when disconnecting
Cable high-impedance state over the ground, and impedance value is the sum of the resistance value of the second resistance R2 and the eleventh resistor R11；
When the third switch S3 and the 6th switch S6 be closed and the 9th switch S9, the 12nd switch S12 and
When sixteenmo pass S16 is disconnected, W phase line cable low resistive state over the ground is simulated, and impedance value is the twelfth resistor R12
Resistance value；It is closed and the 9th switch S9, the 12nd opens when the third switch S3 and the sixteenmo close S16
When pass S12 and the 6th switch S6 is disconnected, simulates W phase line cable and short trouble occur；When three switches S3 closure, and
When the 6th switch S6, the 9th switch S9, the 12nd switch S12 and sixteenmo pass S16 are disconnected, W phase line line is simulated
Cable high-impedance state over the ground, and impedance value is the sum of the resistance value of the 3rd resistor R3 and the twelfth resistor R12.
4. 10KV high voltage cable fault simulation as described in claim 1 tests circuit, which is characterized in that when the first switch
S1, second switch S2 and the 7th switch S7 are closed and the third switch S3, the 4th switch S4, the 5th switch S5, the 8th
Switch S8, the 9th switch S9, the tenth switch S10, the 11st switch S11, the 14th switch S14 and the 15th switch S15 are disconnected
When opening, simulates between U phase line cable and V phase line cable and the failure of phase fault occur；As the first switch S1 and described
Second switch S2 is closed and the third switch S3, the 4th switch S4, the 5th switch S5, the 7th switch S7, the 8th switch
When S8, the 9th switch S9, the tenth switch S10, the 11st switch S11, the 14th switch S14 and the 15th switch S15 are disconnected
When, the interphase impedance between U phase line cable and V phase line cable is simulated, and impedance value is the resistance value of the 4th resistance R4；
When the second switch S2, third switch S2 and the 8th switch S8 be closed and the first switch S1, the 5th switch
S5, the 6th switch S6, the 7th switch S7, the 9th switch S9, the 11st switch S11, the 12nd switch S12, the 15th switch S15
And sixteenmo closes S16 when disconnecting, and simulates between V phase line cable and W phase line cable and the failure of phase fault occurs；Work as institute
State second switch S2 and the third switch S3 is closed and the first switch S1, the 5th switch S5, the 6th switch S6,
7th switch S7, the 8th switch S8, the 9th switch S9, the 11st switch S11, the 12nd switch S12, the 15th switch S15 and
Sixteenmo closes S16 and disconnects the interphase impedance constantly simulated between V phase line cable and W phase line cable, and impedance value is institute
State the resistance value of the 5th resistance R5；
When the first switch S1, third switch S3 and the 9th switch S9 be closed and the second switch S2, the 4th switch
S4, the 6th switch S6, the 7th switch S7, the 8th switch S8, the tenth switch S10, the 12nd switch S12, the 14th switch S14 and
When sixteenmo pass S16 is disconnected, simulates between W phase line cable and U phase line cable and the failure of phase fault occur；When described
The first switch S1 and third switch S3 is closed and the second switch S2, the 4th switch S4, the 6th switch S6,
Seven switch S7, the 8th switch S8, the 9th switch S9, the tenth switch S10, the 12nd switch S12, the 14th switch S14 and the tenth
Six switch S16 disconnect the interphase impedance constantly simulated between W phase line cable and U phase line cable, and impedance value is described the
The resistance value of six resistance R6.
5. 10KV high voltage cable fault simulation as described in claim 1 tests circuit, which is characterized in that when the first switch
When S1 and the tenth switch S10 is closed and the 7th switch S7 and the 9th switch S9 is disconnected, U phase line is simulated
The ground capacitance of cable, and capacitance is the sum of the capacitance of the first capacitor device C1 and the 4th capacitor C4；When
When the first switch S1 closure and the 7th switch S7, the 9th switch S9 and the tenth switch S10 are disconnected, U is simulated
The ground capacitance of phase line cable, and capacitance is the capacitance of the first capacitor device C1；
As the second switch S2 and the 11st switch S11 is closed and the 7th switch S7 and the 8th switch S8
When disconnecting, the ground capacitance of V phase line cable is simulated, and capacitance is the second capacitor C2 and the 5th capacitor
The sum of the capacitance of device C5；When second switch S2 closure and the 7th switch S7, the 8th switch S8 and the 11st are opened
When pass S11 is disconnected, the ground capacitance of V phase line cable is simulated, and capacitance is the capacitance of the second capacitor C2；
As the third switch S3 and the 12nd switch S12 is closed and the 8th switch S8 and the 9th switch S9
When disconnecting, the ground capacitance of W phase line cable is simulated, and capacitance is the third capacitor C3 and the 6th capacitor
The sum of the capacitance of device C6；When third switch S3 closure and the 8th switch S8, the 9th switch S9 and the 12nd are opened
When pass S12 is disconnected, the ground capacitance of W phase line cable is simulated, and capacitance is the capacitance of the third capacitor C3.
6. 10KV high voltage cable fault simulation as described in claim 1 tests circuit, which is characterized in that further include the 7th resistance
R7, the 8th resistance R8, the 9th resistance R9 and the 13rd switch S13；Wherein,
One end of the 7th resistance R7 is connected on the U phase line cable, one end of the other end and the 8th resistance R8, institute
One end of one end and the 13rd switch S13 for stating the 9th resistance R9 is connected；
The other end of the 8th resistance R8 is connected with the V phase line cable；
The other end of the 9th resistance R9 is connected with the W phase line cable；
The other end of the 13rd switch S13 is grounded.
7. 10KV high voltage cable fault simulation as claimed in claim 6 tests circuit, which is characterized in that open when the described 13rd
When closing S13, realize to the U phase line cable, V phase line cable and W phase line cable discharge treatment.
8. a kind of 10KV high voltage cable fault simulation test device, which is characterized in that including such as any one of claim 1-7 institute
The 10KV high voltage cable fault simulation test circuit stated.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110244179A (en) * | 2019-05-27 | 2019-09-17 | 广州供电局有限公司 | Cable fault simulation circuit and device |
| CN112611995A (en) * | 2020-11-23 | 2021-04-06 | 深圳供电局有限公司 | Testing device for AC/DC trial delivery instrument |
| CN112684378A (en) * | 2020-12-14 | 2021-04-20 | 深圳供电局有限公司 | Three-core system cable fault simulation device |
-
2018
- 2018-07-25 CN CN201821179303.4U patent/CN208568962U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110244179A (en) * | 2019-05-27 | 2019-09-17 | 广州供电局有限公司 | Cable fault simulation circuit and device |
| CN112611995A (en) * | 2020-11-23 | 2021-04-06 | 深圳供电局有限公司 | Testing device for AC/DC trial delivery instrument |
| CN112684378A (en) * | 2020-12-14 | 2021-04-20 | 深圳供电局有限公司 | Three-core system cable fault simulation device |
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