CN204101646U - For checking the subordinative equipment of the circuit of electrical lead - Google Patents
For checking the subordinative equipment of the circuit of electrical lead Download PDFInfo
- Publication number
- CN204101646U CN204101646U CN201420103631.1U CN201420103631U CN204101646U CN 204101646 U CN204101646 U CN 204101646U CN 201420103631 U CN201420103631 U CN 201420103631U CN 204101646 U CN204101646 U CN 204101646U
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- equipment
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- inspection
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/008—Testing of electric installations on transport means on air- or spacecraft, railway rolling stock or sea-going vessels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/12—Recording operating variables ; Monitoring of operating variables
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/54—Testing for continuity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model relates to a kind of for checking the subordinative equipment of circuit of the electrical lead in electric device (12).Can be so as in order to provide---especially as much as possible when do not disconnect and access procedure---with the equipment expending the process of testing little especially, propose: described equipment has inspection current unit (14), described inspection current unit is set to in order to produce inspection electric current and being inductively coupled with the wire (12) of examine, and when there is the circuit dependency of wire (12) of examine, described inspection electric current can guide via described wire; And described equipment has detecting unit (22), at least one operation characteristic of described detecting unit is relevant to the existence of inspection electric current.
Description
Technical field
The utility model relates to a kind of for checking the subordinative equipment of the circuit of the electrical lead in electric device.
Background technology
Due to the topological structure of the complexity such as especially in the parallel circuit of multiple wire and/or be difficult to touching property, the inspection of electric device due to parts to be tested, the detection of the conductor circuit of such as fault becomes difficulty.
In the customer system with multiple customer interface be connected in parallel, progressively must disconnect N-conductor in parallel, electrical measurement can be performed in order to detect zero line (or N-conductor) with ground wire (PE conductor) or with the connection on ground.At this, the disconnection representative of the N-conductor of the circuit do not cut off is significant dangerous.
Track vehicle have to running rail wheel earthing contact on directly and very low-impedance potential balance.Due to security reason, all compartments without protective ground brush construct relative to track insulation and additionally have overvoltage discharger, and described overvoltage discharger is connected with running rail via wheel bearing.In trouble-free normal operation, described overvoltage discharger is extremely high ohm.In case of a fault, such as, at rail fault or when carrying out trolley contact in the single compartment without wheel earthing contact, light corresponding overvoltage discharger, carry out welding then guaranteeing: touch voltage and then personnel protection are protected.If overvoltage discharger is welded in train, so reverse drive electric current can damage corresponding wheel bearing.Because overvoltage discharger is all connected in parallel with wheel ground connection contact site, so only can detect the overvoltage discharger of welding with high expending.The disconnection of the overvoltage discharger that the prerequisite checked is especially to be tested.In addition, overvoltage discharger is impossible to the subordinative long-term monitoring of circuit.
In order to avoid damaging axle journal due to reverse drive electric current, in the bogie of track vehicle, be provided with multiple insulation position be connected in parallel with each other.The example especially range extender (Drehmomentst ü tze) of wheels equalizer bearing (Radsatzschwingenlager), the temperature sensor on bearing and on transmission bearing, the speed probe on bearing housing, variator, the bearing, caliper unit etc. of CD-ROM drive motor at such insulation position.Because described insulation position is present in bogie with multiple forms usually, so only trouble location can be detected with high expending.This especially owing to described insulation position be difficult to touch.
Utility model content
The utility model based on object be, there is provided a kind of for checking the subordinative equipment of the circuit of the electrical lead in electric device, by described equipment---especially as much as possible when not do not disconnect and access procedure---can expend with little especially the process of testing.
What propose is for this reason, described equipment has: inspection current unit, described inspection current unit be set to in order to produce inspection electric current and with the lead inductance of examine be coupled, when there is the circuit dependency of wire of examine, described inspection electric current can guide via described wire; And detecting unit, at least one operation characteristic of described detecting unit is relevant to the existence of inspection electric current.Especially advantageously can carry out the contactless inspection of the wire of examine thus, wherein reduce significantly, especially can be avoid disconnection and access to expend.
" the circuit dependency " of electrical lead should be different from the intrinsic electrical conductance of wire.When wire to be tested is the ingredient in closed circuit or closed path loop, there is the circuit dependency of wire to be tested.When there is the circuit dependency of wire to be tested, described wire to be tested is closed and then the network component of electric current energy percolation, check in described circuit current unit can by means of inductive coupling inspection electric current of inducting.If wire to be tested is not closed network component, so there is no electric current via described wire or be not at least relevant to the significant electric current that threshold value limits directed.The existence of the inspection electric current relevant to the existence of closed circuit can detect by means of detecting unit.When there is circuit dependency or when there is not circuit dependency, in the term of those skilled in the art, also use term " low ohm property " or " high ohmic properties ".
The existence of closed current return that can check permission by means of described equipment, that expect.But when have parts to be tested be difficult to unallowed, closed current return that is that exist due to fault in the electric device of the topological structure of touching property and/or complexity, be detected time, described equipment is especially favourable.
Particularly advantageously, inspection can electric device cut off or carry out by means of equipment under the state that disconnects with power supply, extra high user security can be realized thus.At this, the generation of inspection electric current realizes by means of the energy source of equipment in an advantageous manner.
" operation characteristic " of detecting unit especially corresponds to the operation characteristic being characterized in the existence of the inspection electric current in the wire of examine that can detect.Described characteristic can be specific performance, as especially to check the existence of specific physical process existing for basis of electric current.In addition, described characteristic can be the specific value of physical characteristic parameter, and described value characterizes the existence of inspection electric current.
In a preferred formation scheme of the present utility model, inspection current unit is connected in the mode of transformer with the wire of examine in checkout procedure.Thus, current unit is checked can structurally to carry out simply with being coupled of wire of examine.At this, wire can by being carried out the armature winding of virtual transformer by the mode checking the component of current unit contactlessly to surround by described wire.Preferably be wound with coil around described component, wherein component and coil form the secondary winding or magnetic core of transformer that transformer type is connected.
In addition, proposition, detecting unit has oscillatory circuit and operation characteristic is at least relevant to the existence of vibration.Thereby, it is possible to provide detecting unit, the operation characteristic of the existence characterizing inspection electric current especially simply and clearly or can be detected with high accuracy and/or reliability for described detecting unit.Particularly preferably, operation characteristic corresponds to the existence of vibration.
In addition, when the circuit that detecting unit is its ingredient by inspection current unit is at least in part formed, the structurally simple design proposal of described equipment can be realized.Advantageously, inspection current unit and detecting unit are the ingredients of same circuits.Particularly advantageously, inspection current unit is the ingredient of detecting unit.
Especially, detecting unit has oscillatory circuit, and wherein operation characteristic is at least relevant to the existence of vibration, and checks current unit to be the ingredient of oscillatory circuit.Inspection current unit, described inspection current unit forms the inductance of oscillatory circuit in an advantageous manner with inductive coupling of setting up in checkout procedure if desired of the wire of examine.
In the described favourable formation scheme of equipment, detecting unit can be used in excitation inspection current unit, can avoid thus as this object and arrange, independent unit.Can produce alternating magnetic field in inspection current unit by the vibration of oscillatory circuit, described alternating magnetic field can in an adequate manner for checking the induction of electric current.At this, advantageously need low power to produce inspection electric current.If produce inspection electric current under the state of the circuit subordinate of the wire of examine in described wire, so the energetic portions of oscillatory circuit flows away in closed conductor circuit, and the wire of examine is the ingredient of this closed conductor circuit.If remaining energetic portions is not enough to, for maintaining vibration, so can realize the decay of described vibration in oscillatory circuit, that described decay forms the existence that is clear and definite especially, that characterize inspection electric current of detecting unit and be easy to the runnability that detects.
In addition propose, oscillatory circuit is configured to oscillatory circuit in parallel.In described topological structure, be coupled with the inductive of wire being subordinated to circuit by means of inspection current unit---the inductive part as oscillatory circuit---, (described ohmic loss is called resistance " R to the ohmic loss that can increase in oscillatory circuit in technical literature
l").Described ohmic loss can cause the decay that can detect of vibration and then can realize the detection clear and definite especially of the conductor circuit closed.
According to another favourable formation scheme of the present utility model, oscillatory circuit is configured to the oscillatory circuit by means of amplifier feed-back, structurally can realize the foundation of the mode of oscillation of oscillatory circuit thus simply.
In addition propose, equipment has the output unit be connected with amplifier out.
In addition, when equipment is configured to portable unit, extra high operation comfort can be realized.In this article, when described portable unit has the controllable clamp of the wire surrounding examine in checkout procedure, shirtsleeve operation can be realized.
According to the embodiment of an alternative, equipment can be configured to the unit combined regularly in electric device to be tested.When the monitoring of electric device should constantly and/or when carrying out for the parts being difficult to touch in described electric device, this is especially favourable.
Described embodiment is particularly suitable for having the vehicles, the especially track vehicle at insulation positions to be monitored a large amount of especially.At this, when equipment and the supervising device of the vehicles---especially chronically---are when being connected, the long-term monitoring at described insulation position can be realized.
Accompanying drawing explanation
Elaborate embodiment of the present utility model with reference to the accompanying drawings.Accompanying drawing illustrates:
Fig. 1 illustrates for checking the subordinative equipment of the circuit of electrical lead, and described equipment has inspection current unit, detecting unit and output unit;
Fig. 2 illustrates the circuit forming inspection current unit and detecting unit;
Fig. 3 illustrates the circuit forming output unit;
Fig. 4 illustrates the customer system treated by means of unit check; And
Fig. 5 illustrates the formation scheme of an alternative of the equipment of the unit installed regularly as track vehicle.
Embodiment
Fig. 1 illustrates the diagrammatic top view for checking the subordinative equipment 10 of the circuit of electrical lead 12.Wire 12 to be tested is the ingredients of the electric device be not shown specifically in Fig. 1.Illustrate in figures 4 and 5 and be described in more detail below the embodiment of the example of device to be tested.
Described equipment has inspection current unit 14, and described inspection current unit is energized in checkout procedure, makes it under the state of the circuit subordinate of electrical lead 12, be induced into inspection electric current in described wire 12.For this reason, current unit 14 is checked inductively to be coupled with the wire 12 of examine in checkout procedure.This realizes with the mode that wire 12 is connected in the mode of transformer particularly by by inspection current unit 14.For this reason, inspection current unit 14 has the unit 18 of coil 16 and annular, and the unit of described annular surrounds the wire 12 of examine in checkout procedure.The ingredient of the especially controllable clamp 20 of unit 18 of annular.Coil 16 is wound around around the subregion of the unit 18 of annular, makes described coil and unit 18 form Transformer Winding or magnetic core of transformer.Therefore, in checkout procedure, wire 12 and the coil 16 of examine forms the armature winding or secondary winding that transformer type is connected.
In addition, equipment 10 has detecting unit 22, and at least one operation characteristic of described detecting unit is relevant to the existence of inspection electric current.In order to information is exported to user, equipment 10 comprises output unit 24, and described output unit is connected with detecting unit 22 and has display unit 26.
Fig. 2 illustrates circuit 28, the detecting unit 22 of described circuit constitution equipment 10.Circuit 28 or detecting unit 22 have oscillatory circuit 30, and the inductance of described oscillatory circuit is by checking current unit 14 or being connected and composed by the transformer type set up by means of wire 12 in checkout procedure and the electric capacity of described oscillatory circuit is made up of capacitor C1.At this, the coil 16 of capacitor C1 and inspection current unit 14 is electrically connected to each other.Therefore, inspection current unit 14 or is connected with the transformer type of wire 12 be oscillatory circuit 30 so that the ingredient of circuit 28, described circuit formation detecting unit 22.Therefore, inspection current unit 14 and detecting unit 22 belong to identical circuit 28, and wherein inspection current unit 14 is ingredients of detecting unit 22.
Oscillatory circuit 30 is by being configured to oscillatory circuit in parallel by the mode checking current unit 14 or its coil 16 and capacitor C1 to be connected in parallel with each other.Ohmage that is that check current unit 14 or that be connected with the transformer type of wire 12 is symbolically shown as resistance R
l, described resistance and coil 16 are connected in series.
In addition, circuit 28 has amplifier 32, and described amplifier is coupled with oscillatory circuit 30.At this, the first input end of amplifier 32 is connected with oscillatory circuit 30, makes described amplifier be loaded with the electromotive force u of capacitor C1
c.Second input end of amplifier 32 is connected to ground via resistance R3.In addition, being coupled of amplifier out 34 and described second input end is carried out via another resistance R4, and the amplification coefficient V of amplifier 32 is passed through
V=1+R4/R3
Provide.Amplifier out 34 in addition via resistance R1 and amplifier 32 first input end so that with oscillatory circuit 30 or with capacitor electromotive force u
ccoupling.Therefore, oscillatory circuit 30 is configured to the parallel oscillatory circuit by means of amplifier 32 feedback.The electromotive force of amplifier out 34 is by u
aidentify and be applicable to:
u
A=u
C*V，
Because the electromotive force of capacitor C1 is applied on the first amp.in.
By the feedback of carrying out by means of amplifier 32 of oscillatory circuit 30, provided to coil 16 with to the summation of the electric current in capacitor C1 by the inverse current (R ü ckstrom) flowing through resistance R1.Be suitable at this:
i
L+C*du
C/dt=（u
A-u
C）/R1
Wherein i
lflow through the electric current of coil 16 and C is the electric capacity of capacitor C1.
In addition be suitable in oscillatory circuit 30:
u
C=L*di
L/dt+R
L*i
L
Wherein L be inspection current unit 14 or inductance that transformer type between described inspection current unit and the wire 12 of examine connects.
Can derive from aforementioned formula for capacitor electromotive force u
cthe differential equation of (t), the general formula of the described differential equation is:
a*d
2u
C/dt
2+b*du
C/dt+c*u
C=0。
Described solution corresponding to the vibration of decay with attenuation constant δ=b/2a, wherein
b=C*R
L-L*（V-1）/R1
By setting b=0, the operational mode of the detecting unit 22 with zero-decrement vibration can be set up via amplifier 32.This corresponds to
R4/R3=R1*R
L*C/L （1）
Under the described conditions, zero-decrement vibration is the solution of the aforementioned differential equation, and wherein oscillation frequency is passed through
ω
0=sqrt（1/（L*C）-（R
L/L）
2）
Provide.
Oscillation frequency and inspection current unit 14 or the Ohmage R that is connected with the transformer type that the wire 12 of examine is set up
lvalue be correlated with.For satisfying condition
R
L<sqrt（L/C）
R
lvalue, oscillation frequency ω
0it is real number.
For be connected with the transformer type of electrical lead 12 be suitable for be
R
P=R
S*（n
P/n
S）
2
Wherein R
pand R
sbe the primary side that connects of transformer type or the Ohmage of primary side and n
p/ n
scorresponding to turn ratio.
Secondary resistance R
sby the resonance impedance of pure ohm of the oscillatory circuit of parallel connection, i.e. parallel oscillatory circuit
R
S＝
Zr=L/（C*R
L）
Provide.For primary impedance R
pobtain condition below:
R
P>sqrt（L/C）*（n
P/n
S）
2 （2）
When existing for maintenance vibration necessary amplification (condition (1)), condition (2) is for primary impedance R
pcriterion.If elementary resistance R
padopt the value lower than threshold value, it is no longer feasible for so vibrating.This especially carries out when the wire 12 of examine is the ingredient of closed current return and conducts the inspection electric current of being inducted by inspection current unit 14.Therefore, the state of the circuit subordinate of wire 12 can be detected by the disappearance of vibration, because the existence of vibration or disappearance are the operation characteristics of the existence of the sign inspection electric current of detecting unit 22.
For oscillatory circuit 30 or another criterion of possibility of mode of oscillation of detecting unit 22 can set via ratio R4/R3.In the case, ratio R4/R3 is preset as, makes amplification be set to be compared to the necessary amplification of maintenance vibration higher.Be suitable at this:
R4/R3>R1*R
L*C/L
In the case, set ratio R4/R3 regularly, make to exceed threshold value as resistance RL
R
L>L/（C*R1）*R4/R3
Time, amplify no longer enough.In the case, vibrate according to the decay of loss situation, until it disappears.Resistance R
lrising as above set forth especially at elementary resistance R
prealize during decline, make the state of the circuit subordinate of wire 12 and mode of oscillation can be left and detected by detecting unit 22 due to the decay of vibration.
Therefore, the existence of vibration is the operation characteristic of detecting unit 22, and described operation characteristic is relevant to the existence of the inspection electric current in the wire 12 of examine.Therefore, the circuit dependency of electrical lead 12 can be detected via described operation characteristic.
The subordinative information of circuit about wire 12 exports by means of output unit 24.The circuit of described output unit 24 is shown in Figure 3.
Output unit 24 has the input end be made up of the amplifier out 34 of detecting unit 22.Output unit 24 comprises: the diode D1 be connected with input end; Capacitor C2; The resistor R5 be connected in parallel with described capacitor; Comparer 36, the first input end of described comparer is connected with diode D1 and the second input end of described comparer is connected to ground via resistor R6; And comprise LED diode, described LED diode form display unit 26 and be connected to comparator output terminal and---via resistor R7's---between ground.
In the mode of oscillation of detecting unit 22, capacitor C2 is loaded on the positive peak of vibration via diode D1.Set comparer 36 by means of resistor R6, make described comparer connecting a little less than during described peak value.Once detecting unit leaves its mode of oscillation, so capacitor C2 discharges via resistor R5 and the subordinative detection of circuit of the wire 12 of the extinguishing of LED diode display examine.
The application of the example of equipment 10 is set forth by means of Figure 4 and 5.
Fig. 4 illustrates that, for the customer system for customer feed, described customer system has one group of socket X5 to X8.Wire-protecting switch F2 to F5 is connected to and by means of failure current protection switch F1 to protect whole electric system in the upstream of each socket 40.
The connection of N-conductor and ground or the fault with PE wire can be detected by means of equipment 10, and not necessarily one after the other must disconnect N-conductor.For this reason; after setting up the connection between N leading body and PE leading body; equipment 10 one by one can be installed in each N-conductor into socket X5 to X8 feed in the downstream of failure current protection switch F1, make between checked N-conductor and the inspection current unit 14 of equipment 10, set up transformer type and connect (see Fig. 1).In the no-load running of equipment 10, detecting unit 22 is in its mode of oscillation.If flawless N-conductor is surrounded by the unit 18 of annular, so do not check in current fed N-conductor, because described N-conductor is not the ingredient of closed conductor circuit.Therefore, run in this its mode of oscillation external of detecting unit 22.When N-conductor fault, described N-conductor due to its with ground or the connection but allows of PE check the ingredient of the current return closed of current flowing.Along with the generation of inspection electric current, detecting unit 22 leaves its mode of oscillation, can detect out of order wire thus.
When checking, can by whole system ground connection, this speech for user demonstrates extra high security.
Fig. 5 illustrates the side view of the highly schematic of track vehicle 40.Described track vehicle has compartment 42 and wheel bearing 44.Due to security reason, compartment 42 is connected with running rail with wheel bearing 44 via overvoltage discharger 46.In the normal operation of rail vehicle 40, overvoltage discharger 46 must be very high ohm, to avoid due to reverse drive electric current and to damage wheel bearing 44.Only in case of a fault, low-impedance connection between compartment 42 and running rail is set up by lighting and weld overvoltage discharger 46.
The state of high ohm of overvoltage discharger 46 can be checked by means of equipment 10.For this reason, as described above, between the feed line and inspection current unit 14 of overvoltage discharger 46, transformer type connection is being set up.The disconnection of overvoltage discharger 46 is optional.
At this, equipment 10 can be portable unit as shown in Figure 1.But in the embodiment observed in Figure 5, equipment 10 is fixedly mounted in the device in track vehicle 40, wherein exist between equipment 10 and the fixing supervising device 48 of track vehicle 40 and connect.Therefore, the state of the conduction of overvoltage discharger 46 can be monitored by track vehicle 40 chronically.
Claims (11)
1. one kind for checking the subordinative equipment of circuit of the electrical lead in electric device (12), described equipment has inspection current unit (14), described inspection current unit is set to in order to produce inspection electric current and being inductively coupled with the described wire (12) of examine, and when there is the circuit dependency of described wire (12) of examine, described inspection electric current can guide via described wire; And described equipment has detecting unit (22), at least one operation characteristic of described detecting unit is relevant to the existence of described inspection electric current.
2. equipment according to claim 1,
It is characterized in that,
Described inspection current unit (14) is connected in the mode of transformer with the described wire (12) of examine in checkout procedure.
3. equipment according to claim 1 and 2,
It is characterized in that,
Described detecting unit (22) has oscillatory circuit (30) and described operation characteristic is at least relevant to the existence of vibration.
4. according to the equipment in claim described in 1 or 2,
It is characterized in that,
Described detecting unit (22) is made up of circuit (28) at least in part, and described inspection current unit (14) is described network component.
5. equipment according to claim 3,
It is characterized in that,
Described inspection current unit (14) is the ingredient of described oscillatory circuit (30); And
Described detecting unit (22) is made up of circuit (28) at least in part, and described inspection current unit (14) is described network component.
6. equipment according to claim 5,
It is characterized in that,
Described oscillatory circuit (30) is configured to oscillatory circuit in parallel.
7. equipment according to claim 3,
It is characterized in that,
Described oscillatory circuit (30) is configured to the oscillatory circuit fed back by means of amplifier (32).
8. equipment according to claim 7,
It is characterized in that, described equipment is provided with output unit (24), and described output unit is connected with amplifier out (34).
9. equipment according to claim 1 and 2,
It is characterized in that,
Described equipment is configured to portable unit.
10. equipment according to claim 9,
It is characterized in that, described equipment is provided with controllable clamp (20), and described clamp surrounds the described wire (12) of examine in checkout procedure.
11. 1 kinds of vehicles, especially track vehicles, the supervising device (48) that there is equipment according to any one of claim 1 to 8 (10) and be connected with described equipment (10).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013203921.2 | 2013-03-07 | ||
| DE102013203921.2A DE102013203921A1 (en) | 2013-03-07 | 2013-03-07 | Device for testing a circuit membership of an electrical line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204101646U true CN204101646U (en) | 2015-01-14 |
Family
ID=51385536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420103631.1U Expired - Fee Related CN204101646U (en) | 2013-03-07 | 2014-03-07 | For checking the subordinative equipment of the circuit of electrical lead |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN204101646U (en) |
| DE (1) | DE102013203921A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4273566A1 (en) * | 2022-05-03 | 2023-11-08 | IMS Gear SE & Co. KGaA | Electrical arrangement comprising a redundant electrical transmission path and means for detecting an error state thereof and method for detecting an error state of the redundant electrical transmission path of the electrical arrangement |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10118772B4 (en) * | 2000-04-14 | 2005-10-20 | Uwe Sauer | Procedure for testing and monitoring shunt freedom in FPE earthing systems and in TN-S supply networks |
-
2013
- 2013-03-07 DE DE102013203921.2A patent/DE102013203921A1/en not_active Withdrawn
-
2014
- 2014-03-07 CN CN201420103631.1U patent/CN204101646U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE102013203921A1 (en) | 2014-09-11 |
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