CN111025124B - Method and application for determining intrinsic safety attribute of circuit, and computer readable medium storing intrinsic safety attribute checking program of circuit - Google Patents
Method and application for determining intrinsic safety attribute of circuit, and computer readable medium storing intrinsic safety attribute checking program of circuit Download PDFInfo
- Publication number
- CN111025124B CN111025124B CN201911149713.3A CN201911149713A CN111025124B CN 111025124 B CN111025124 B CN 111025124B CN 201911149713 A CN201911149713 A CN 201911149713A CN 111025124 B CN111025124 B CN 111025124B
- Authority
- CN
- China
- Prior art keywords
- circuit
- intrinsic safety
- storage element
- energy storage
- intrinsic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000003990 capacitor Substances 0.000 claims abstract description 48
- 230000009466 transformation Effects 0.000 claims abstract description 15
- 238000004146 energy storage Methods 0.000 claims description 53
- 238000012545 processing Methods 0.000 claims description 15
- 230000001939 inductive effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- JXASPPWQHFOWPL-UHFFFAOYSA-N Tamarixin Natural products C1=C(O)C(OC)=CC=C1C1=C(OC2C(C(O)C(O)C(CO)O2)O)C(=O)C2=C(O)C=C(O)C=C2O1 JXASPPWQHFOWPL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
- G01R31/2836—Fault-finding or characterising
- G01R31/2849—Environmental or reliability testing, e.g. burn-in or validation tests
-
- 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
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
- G01R31/2836—Fault-finding or characterising
- G01R31/2843—In-circuit-testing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Air Bags (AREA)
Abstract
The invention discloses a method for determining intrinsic safety attribute of a circuit, application and a computer readable medium storing an intrinsic safety attribute checking program of the circuit, belonging to the technical field of intrinsic safety attribute measuring methods of circuits. Before and after impedance transformation is carried out on the circuit, the circuit is respectively recorded as an initial circuit and an equivalent circuit, and whether the initial circuit and the equivalent circuit are non-intrinsic safety circuits or not is respectively determined on the basis of not considering factors of an analog inductor and an analog capacitor; when the initial circuit or the equivalent circuit is a non-intrinsic safety circuit, determining that the circuit is the intrinsic safety circuit and using the circuit as the non-intrinsic safety circuit; when the circuit cannot be determined to be the intrinsic safety circuit, the circuit can be used as the intrinsic safety circuit. The intrinsically safe property check program of the circuit can output whether the circuit is a non-intrinsically safe circuit.
Description
Technical Field
The present invention relates to the technical field of a circuit intrinsic safety attribute determination method, and in particular, to a method and an application for determining an intrinsic safety attribute of a circuit, and a computer readable medium storing an intrinsic safety attribute verification program of a circuit.
Background
Even if the short circuit or electric spark occurs on the line, the surrounding flammable and explosive gas cannot be ignited sufficiently, and the circuit is called an intrinsic safety circuit, namely an intrinsic safety circuit for short. When the circuit includes an energy storage element, the energy of the energy storage element may affect the safety of the circuit in an unexpected situation. In the technical field of explosion-proof electric, the influence relationship of an inductor and a capacitor on the explosion-proof performance of a circuit is clear. Specifically, when determining whether the circuit is an intrinsically safe circuit, the energy storage element is comprehensively determined by combining a minimum ignition curve and minimum ignition energy, the minimum ignition curve corresponding to the inductor should use a minimum ignition current curve, and the minimum ignition curve corresponding to the capacitor should use a minimum ignition voltage curve.
However, an analog inductor or an analog capacitor formed by impedance conversion is also present in the intrinsically safe circuit, and the influence of the analog inductor or the analog capacitor on the explosion-proof performance of the circuit is often ignored. The simulated inductor, the simulated capacitor may change the properties of the circuit, for example, the capacitor becomes an inductor, or may change the physical quantity of the inductor or the capacitor in the circuit, that is, the property of the energy storage element is unchanged but the value is changed. Because the intrinsic safety circuit is generally applied to special occasions, the influence of an analog inductor in the circuit on the explosion-proof performance of the circuit cannot be ignored so as to avoid great errors.
The problem is firstly proposed by Zhang obviously in the theory discussion of existence and potential danger of an analog inductor and an analog capacitor in an intrinsically safe circuit in the 2 nd phase of 1996 of "electric explosion prevention", and the influence of … … on explosion prevention performance needs to be experimentally verified in the last part of an article.
Section 6.3.6 of the explosion proof electrical general theory (mechanical industry press, 2 nd edition 2014) mentions the analog inductance and the analog capacitance in the intrinsically safe circuit and carries out more detailed analysis and explanation, suggesting that proper evaluation of the potential risk of the analog inductance and the analog capacitance is required, but no specific evaluation method is given.
Disclosure of Invention
Because the analog inductor or the analog capacitor is a virtual object after equivalent transformation, and does not exist in the physical world, although the influence on the intrinsic safety property of the circuit is known in the art, the influence degree and the influence effect cannot be known through experiments in reality, and the intrinsic safety property of the circuit with the energy storage element is not determined in the art.
In view of the above, the present invention provides a method and an application for determining intrinsic safety properties of a circuit, and a computer readable medium storing an intrinsic safety property verification program of a circuit, so as to solve the technical problem that the intrinsic safety properties of a circuit with an energy storage element are not easy to be determined.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method of determining intrinsic safety properties of a first circuit, the first circuit including a energy storage element, comprising the steps of:
step a, when the energy storage element is an inductor, obtaining the inductance L of the energy storage element and the current I passing through two ends of the inductor, and when the energy storage element is a capacitor, obtaining the capacitance C of the energy storage element and the voltage loaded at two ends of the energy storage element
Step b, determining intrinsic safety attributes of the first circuit, including,
a sub-step b1, before the impedance transformation is performed on the first circuit, the first circuit is recorded as an initial circuit, and whether the initial circuit is a non-intrinsic safety circuit is determined without considering factors of an analog inductor and an analog capacitor;
a substep b2, performing impedance transformation on the initial circuit to obtain an equivalent circuit, and determining whether the equivalent circuit is a non-intrinsic-safety circuit without considering factors of an analog inductor and an analog capacitor;
and if the sub-step b1 or the sub-step b2 determines that the corresponding circuit in the sub-step is a non-intrinsic safety circuit, determining that the first circuit is the non-intrinsic safety circuit.
Preferably, the energy storage element is a capacitor, and in the substep b1, if the voltage across the capacitor is applied
Or the stored energy W of the initial circuit1＞WminDetermining the initial circuit to be a non-intrinsically safe circuit, wherein UminIs the minimum ignition voltage of the intrinsic safety circuit, k is the safety factor of the intrinsic safety circuit, WminThe minimum ignition energy of the intrinsically safe circuit.
Preferably, the energy storage element is a capacitor, and in the substep b2, the capacitor is equivalently transformed into an inductance circuit equivalent to the capacitor, and if the equivalent current of the inductance circuit is equal to the inductance circuit
Or the energy storage W of the equivalent circuit2＞WminDetermining the equivalent circuit to be a non-intrinsic safe circuit, wherein IminIs the minimum ignition current of the intrinsic safety circuit, k is the safety factor of the intrinsic safety circuit, WminThe minimum ignition energy of the intrinsically safe circuit.
If the first circuit is determined to be a non-intrinsic-safety circuit, the circuit is used as the non-intrinsic-safety circuit.
If all the substeps of substep b1 and substep b2 fail to determine that the corresponding circuit in the substep is a non-intrinsically safe circuit, the first circuit is used as an intrinsically safe circuit.
A computer-readable medium storing an intrinsically safe property check program for a first circuit, the first circuit including a power storage element, the intrinsically safe property check program for the first circuit comprising:
the physical quantity data acquisition module is used for acquiring the inductance L of the energy storage element and the current I passing through two ends of the inductor when the energy storage element is an inductor, and is used for acquiring the capacitance C of the energy storage element and the voltage loaded at two ends of the energy storage element when the energy storage element is a capacitor
The first processing module is used for carrying out impedance transformation on an energy storage element in the first circuit so as to obtain an equivalent circuit equivalent to the energy storage element after the impedance transformation is carried out on the energy storage element; before the first processing module processes the first circuit, the first circuit is recorded as an initial circuit;
the second processing module is used for judging whether the initial circuit and the equivalent circuit are non-intrinsic safety circuits or not under the condition of not considering the factors of the analog inductance and the analog capacitance; and
and a module configured to output an intrinsic safety attribute of the first circuit, and if the second processing module determines that the initial circuit or the equivalent circuit is a non-intrinsic safety circuit, output first data, where the first data carries information that the first circuit is a non-intrinsic safety circuit.
Preferably, the second processing module comprises an ignition curve comparing unit and an ignition energy comparing unit, the initial circuit or the equivalent circuit is a second circuit, and when the stored energy W > -of the second circuitWminWhen the ignition energy comparison unit determines that the second circuit is a non-intrinsic-safety circuit, WminFor minimum ignition energy of the intrinsically safe circuit, when the second circuit comprises a capacitor, if the voltage across the capacitor is applied
Wherein, UminIf the minimum ignition voltage of the intrinsic safety circuit is used, and k is the safety coefficient of the intrinsic safety circuit, the ignition curve comparison unit determines that the second circuit is a non-intrinsic safety circuit; when the second circuit comprises an inductor, if the current flowing through the inductor
Wherein, IminIf the minimum ignition current of the intrinsic safety circuit is used, and k is the safety coefficient of the intrinsic safety circuit, the ignition curve comparison unit determines that the second circuit is a non-intrinsic safety circuit; and if the ignition energy comparison unit or the ignition curve comparison unit determines that the second circuit is a non-intrinsic-safety circuit, determining that the first circuit is a non-intrinsic-safety circuit.
The invention has the beneficial effects that:
the invention determines whether the initial circuit and the equivalent circuit are non-intrinsic safety circuits, and if the initial circuit or the equivalent circuit is the non-intrinsic safety circuit, the first circuit is determined to be the non-intrinsic safety circuit. The method comprises the steps of firstly determining whether a first circuit is a non-intrinsic safety circuit or not through reverse thinking, then determining whether an initial circuit and an equivalent circuit are the non-intrinsic safety circuits respectively, and determining whether the first circuit is the non-intrinsic safety circuit or not through a fault-oriented safety principle.
The method for determining the intrinsic safety attribute of the first circuit is applied, whether the first circuit can be used as the intrinsic safety circuit is determined by determining whether the circuit is a non-intrinsic safety circuit or not.
The invention relates to a computer readable medium storing an intrinsic safety attribute checking program of a first circuit, which reminds a program user that the first circuit is a non-intrinsic safety circuit by outputting whether the first circuit is the non-intrinsic safety circuit or not so as to facilitate the program user to make a decision in time.
Drawings
Fig. 1 is a circuit diagram of a capacitor equivalent to an analog inductor.
Fig. 2 is an equivalent inductance circuit diagram of the capacitor in fig. 1.
Detailed Description
The technical scheme in the embodiment of the invention is clearly and completely described in the following with the accompanying drawings of the specification. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: a method of determining intrinsic safety properties of a first circuit, see fig. 1-2, the first circuit comprising a energy storage element, the energy storage element being a capacitor, comprising the steps of:
step a, acquiring the capacitance C of the capacitor and the voltage loaded at two ends of the capacitor
Step b, determining intrinsic safety attributes of the first circuit, including,
a sub-step b1, before the impedance transformation is performed on the first circuit, the first circuit is recorded as an initial circuit, and whether the initial circuit is a non-intrinsic safety circuit is determined without considering the factor of the analog inductor; in particular, if the voltage across the capacitor is applied
Or the stored energy W of the initial circuit1＞WminDetermining the initial circuit to be a non-intrinsically safe circuit, wherein UminIs the minimum ignition voltage of the intrinsic safety circuit, k is the safety factor of the intrinsic safety circuit, WminThe minimum ignition energy of the intrinsic safety circuit;
in a sub-step b2, the initial circuit is impedance-transformed to obtain an equivalent circuit, for example, fig. 1 is a circuit diagram in which a capacitor is equivalent to an analog inductor, and the input current is
The capacitance of the capacitor is C1The resistance values of 7 resistors are all R1The resistance values of 1 resistor are all RLAt this time, the equivalent circuit can be defaulted to be a physical circuit, and whether the equivalent circuit is a non-intrinsic safety circuit or not is determined under the condition of not considering factors of the analog inductor and the analog capacitor; specifically, the capacitor is equivalently transformed into an inductance circuit equivalent to the capacitor, the inductance circuit comprises an analog inductor and an analog resistor which are connected in series, and the inductance of the analog inductor is
The resistance of the equivalent resistor is Req＝RLThe equivalent current of the inductance circuit is
If the equivalent current of the inductive circuit is
Or the energy storage W of the equivalent circuit2＞WminDetermining the equivalent circuit to be a non-intrinsic safe circuit, wherein IminIs the minimum ignition current of the intrinsic safety circuit, k is the safety factor of the intrinsic safety circuit, WminThe minimum ignition energy of the intrinsic safety circuit;
and if the sub-step b1 or the sub-step b2 determines that the corresponding circuit in the sub-step is a non-intrinsic safety circuit, determining that the first circuit is the non-intrinsic safety circuit.
Example 2: a method of determining intrinsic safety properties of a first circuit, the first circuit comprising a energy storage element, the energy storage element being an inductor, comprising the steps of:
step a, obtaining inductance L of the inductor and current I passing through two ends of the inductor;
step b, determining intrinsic safety attributes of the first circuit, wherein,
a sub-step b1, before the impedance transformation is performed on the first circuit, the first circuit is recorded as an initial circuit, and whether the initial circuit is a non-intrinsic safety circuit is determined without considering factors of an analog inductor and an analog capacitor;
a substep b2, performing impedance transformation on the initial circuit to obtain an equivalent circuit, and determining whether the equivalent circuit is a non-intrinsic-safety circuit without considering factors of an analog inductor and an analog capacitor;
and if the sub-step b1 or the sub-step b2 determines that the corresponding circuit in the sub-step is a non-intrinsic safety circuit, determining that the first circuit is the non-intrinsic safety circuit.
Example 3: in a method for determining the intrinsic safety attribute of the first circuit according to embodiment 1 or embodiment 2, if it is determined that the first circuit is a non-intrinsic safety circuit, the first circuit needs to be used as the non-intrinsic safety circuit.
Example 4: in a method for determining an intrinsic safety property of a first circuit according to embodiment 1 or embodiment 2, if all the substeps b1 and b2 cannot determine that the corresponding circuit in the substep is a non-intrinsic safety circuit, the first circuit may be used as an intrinsic safety circuit.
Example 5: a computer-readable medium storing an intrinsically safe property check program for a first circuit, the first circuit including a power storage element, the intrinsically safe property check program for the first circuit comprising:
the physical quantity data acquisition module is used for acquiring the inductance L of the energy storage element and the current I passing through two ends of the inductor when the energy storage element is an inductor, and is used for acquiring the capacitance C of the energy storage element and the voltage loaded at two ends of the energy storage element when the energy storage element is a capacitor
The first processing module is used for carrying out impedance transformation on an energy storage element in the first circuit so as to obtain an equivalent circuit equivalent to the energy storage element after the impedance transformation is carried out on the energy storage element; before the first processing module processes the first circuit, the first circuit is recorded as an initial circuit;
the second processing module is used for judging whether the initial circuit and the equivalent circuit are non-intrinsic safety circuits or not under the condition of not considering the module inductance and the analog capacitance factors; and
and a module configured to output an intrinsic safety attribute of the first circuit, and if the second processing module determines that the initial circuit or the equivalent circuit is a non-intrinsic safety circuit, output first data, where the first data carries information that the first circuit is a non-intrinsic safety circuit.
Preferably, the second processing module comprises an ignition curve comparing unit and an ignition energy comparing unit, the initial circuit or the equivalent circuit is set as a second circuit, and when the stored energy W of the second circuit is more than WminWhen the ignition energy comparison unit determines that the second circuit is a non-intrinsic-safety circuit, WminFor minimum ignition energy of the intrinsically safe circuit, when the second circuit comprises a capacitor, if the voltage across the capacitor is applied
Wherein, UminIf the minimum ignition voltage of the intrinsic safety circuit is used, and k is the safety coefficient of the intrinsic safety circuit, the ignition curve comparison unit determines that the second circuit is a non-intrinsic safety circuit; when the second circuit comprises an inductor, if the current flowing through the inductor
Wherein, IminFor minimum ignition of intrinsically safe circuitsIf the current is the safety coefficient of the intrinsic safety circuit, the ignition curve comparison unit determines that the second circuit is a non-intrinsic safety circuit; and if the ignition energy comparison unit or the ignition curve comparison unit determines that the second circuit is a non-intrinsic-safety circuit, determining that the first circuit is a non-intrinsic-safety circuit.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent substitutions made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. A method of determining intrinsic safety properties of a first circuit, the first circuit including a energy storage element, comprising the steps of:
step a, when the energy storage element is an inductor, obtaining the inductance L of the energy storage element and the current I passing through two ends of the inductor, and when the energy storage element is a capacitor, obtaining the capacitance C of the energy storage element and the voltage loaded at two ends of the energy storage element
Step b, determining intrinsic safety attributes of the first circuit, including,
a sub-step b1, before the impedance transformation is performed on the first circuit, the first circuit is recorded as an initial circuit, and whether the initial circuit is a non-intrinsic safety circuit is determined without considering factors of an analog inductor and an analog capacitor;
a substep b2, performing impedance transformation on the initial circuit to obtain an equivalent circuit, and determining whether the equivalent circuit is a non-intrinsic-safety circuit without considering factors of an analog inductor and an analog capacitor;
and if the sub-step b1 or the sub-step b2 determines that the corresponding circuit in the sub-step is a non-intrinsic safety circuit, determining that the first circuit is the non-intrinsic safety circuit.
2. A method for determining an intrinsic safety property of a first circuit as claimed in claim 1, wherein said energy storage element is a capacitor and in said substep b1, if a voltage is applied across said capacitor
Or the stored energy W of the initial circuit1＞WminDetermining the initial circuit to be a non-intrinsically safe circuit, wherein UminIs the minimum ignition voltage of the intrinsic safety circuit, k is the safety factor of the intrinsic safety circuit, WminThe minimum ignition energy of the intrinsically safe circuit.
3. A method for determining the intrinsic safety property of a first circuit as claimed in claim 1, wherein said energy storage element is a capacitor, and in said substep b2 said capacitor is equivalently transformed into an inductive circuit equivalent to said capacitor, if the equivalent current of said inductive circuit is equivalent
Or the energy storage W of the equivalent circuit2＞WminDetermining the equivalent circuit to be a non-intrinsic safe circuit, wherein IminIs the minimum ignition current of the intrinsic safety circuit, k is the safety factor of the intrinsic safety circuit, WminThe minimum ignition energy of the intrinsically safe circuit.
4. A method of determining an intrinsic safety property of a first circuit using a circuit as claimed in any one of claims 1 to 3, wherein if said first circuit is determined to be a non-intrinsic safety circuit, then the circuit is used as a non-intrinsic safety circuit.
5. A method for determining an intrinsic safety property of a first circuit according to any one of claims 1-3, wherein the first circuit is used as an intrinsic safety circuit if all the substeps b1 and b2 are unable to determine that the corresponding circuit in the substep is a non-intrinsic safety circuit.
6. A computer-readable medium storing an intrinsically safe property check program for a first circuit, the first circuit including a power storage element, the intrinsically safe property check program for the first circuit comprising:
the physical quantity data acquisition module is used for acquiring the inductance L of the energy storage element and the current I passing through two ends of the inductor when the energy storage element is an inductor, and is used for acquiring the capacitance C of the energy storage element and the voltage loaded at two ends of the energy storage element when the energy storage element is a capacitor
The first processing module is used for carrying out impedance transformation on an energy storage element in the first circuit so as to obtain an equivalent circuit equivalent to the energy storage element after the impedance transformation is carried out on the energy storage element; before the first processing module processes the first circuit, the first circuit is recorded as an initial circuit;
the second processing module is used for judging whether the initial circuit and the equivalent circuit are non-intrinsic safety circuits or not under the condition of not considering the factors of the analog inductance and the analog capacitance; and
and a module configured to output an intrinsic safety attribute of the first circuit, and if the second processing module determines that the initial circuit or the equivalent circuit is a non-intrinsic safety circuit, output first data, where the first data carries information that the first circuit is a non-intrinsic safety circuit.
7. The computer-readable medium storing the intrinsic safety property verification program of the first circuit according to claim 6, wherein the second processing module includes an ignition curve comparing unit and an ignition energy comparing unit, and the initial circuit or the equivalent circuit is set as the second circuit,
when the stored energy W of the second circuit is more than WminWhen the ignition energy comparison module unit determines that the second circuit is a non-intrinsic safety circuit, WminThe minimum ignition energy of the intrinsically safe circuit,
when the second circuit comprises a capacitor, if the voltage across the capacitor is applied
Wherein, UminIf the minimum ignition voltage of the intrinsic safety circuit is used, and k is the safety coefficient of the intrinsic safety circuit, the ignition curve comparison unit determines that the second circuit is a non-intrinsic safety circuit; when the second circuit comprises an inductor, if the current flowing through the inductor
Wherein, IminIf the minimum ignition current of the intrinsic safety circuit is used, and k is the safety coefficient of the intrinsic safety circuit, the ignition curve comparison unit determines that the second circuit is a non-intrinsic safety circuit;
and if the ignition energy comparison unit or the ignition curve comparison unit determines that the second circuit is a non-intrinsic-safety circuit, determining that the first circuit is a non-intrinsic-safety circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911149713.3A CN111025124B (en) | 2019-11-21 | 2019-11-21 | Method and application for determining intrinsic safety attribute of circuit, and computer readable medium storing intrinsic safety attribute checking program of circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911149713.3A CN111025124B (en) | 2019-11-21 | 2019-11-21 | Method and application for determining intrinsic safety attribute of circuit, and computer readable medium storing intrinsic safety attribute checking program of circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111025124A CN111025124A (en) | 2020-04-17 |
| CN111025124B true CN111025124B (en) | 2021-09-28 |
Family
ID=70206401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911149713.3A Active CN111025124B (en) | 2019-11-21 | 2019-11-21 | Method and application for determining intrinsic safety attribute of circuit, and computer readable medium storing intrinsic safety attribute checking program of circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111025124B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002174650A (en) * | 2000-12-06 | 2002-06-21 | Nippon Soken Inc | Method for making electronic device model |
| EP2187227A1 (en) * | 2008-11-18 | 2010-05-19 | Thales | System with intrinsic safety and test module, in particular for use in a railway signalling system |
| CN105974332A (en) * | 2016-04-26 | 2016-09-28 | 中煤科工集团重庆研究院有限公司 | Intrinsically safe power source performance dynamic test system |
| CN206002910U (en) * | 2016-09-06 | 2017-03-08 | 辽宁华科中煤装备有限公司 | " ia " grade mining intrinsic safety type controller |
| CN107884670A (en) * | 2017-12-28 | 2018-04-06 | 扬州华鼎电器有限公司 | The method of testing and its test system of a kind of single phase power transformer |
| CN109921616A (en) * | 2019-03-26 | 2019-06-21 | 北方工业大学 | Buck converter inductance energy storage and output energy ratio measuring and displaying circuit |
-
2019
- 2019-11-21 CN CN201911149713.3A patent/CN111025124B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002174650A (en) * | 2000-12-06 | 2002-06-21 | Nippon Soken Inc | Method for making electronic device model |
| EP2187227A1 (en) * | 2008-11-18 | 2010-05-19 | Thales | System with intrinsic safety and test module, in particular for use in a railway signalling system |
| CN105974332A (en) * | 2016-04-26 | 2016-09-28 | 中煤科工集团重庆研究院有限公司 | Intrinsically safe power source performance dynamic test system |
| CN206002910U (en) * | 2016-09-06 | 2017-03-08 | 辽宁华科中煤装备有限公司 | " ia " grade mining intrinsic safety type controller |
| CN107884670A (en) * | 2017-12-28 | 2018-04-06 | 扬州华鼎电器有限公司 | The method of testing and its test system of a kind of single phase power transformer |
| CN109921616A (en) * | 2019-03-26 | 2019-06-21 | 北方工业大学 | Buck converter inductance energy storage and output energy ratio measuring and displaying circuit |
Non-Patent Citations (4)
| Title |
|---|
| "Research on Short-Circuit Discharge Behavior of Capacitive Circuits Based on Safety Spark Test Apparatus";Liu Shulin;《2014 International Symposium on Computer, Consumer and Control》;20141231;全文 * |
| "截止型保护方式下容性电路短路火花放电模型及分析";于月森;《煤炭学报》;20130330;全文 * |
| "本质安全电路放电特性的研究";徐直;《煤矿机械》;20140730;全文 * |
| "电感性本质安全电路火花放电全过程仿真";孟庆海;《北方工业大学学报》;20171031;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111025124A (en) | 2020-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107710007B (en) | Battery system and method of determining open circuit fault condition in battery module | |
| CN108020805B (en) | Ferromagnetic resonance judgment method and system for voltage transformer of power distribution network | |
| CN113075473B (en) | Method and device for detecting breakdown of capacitive element of capacitive voltage transformer | |
| US20210116486A1 (en) | Method and device for obtaining internal side, external side insulation resistances of relay, and battery management system | |
| CN111025124B (en) | Method and application for determining intrinsic safety attribute of circuit, and computer readable medium storing intrinsic safety attribute checking program of circuit | |
| EP2835749A1 (en) | Method for deriving capacitor equivalent circuit model | |
| CN108879616A (en) | A kind of capacitor ripple current protective device, method and air conditioner | |
| He et al. | Dynamic characteristics and cascaded coordination of limiting‐type SPDs under subsequent negative strokes | |
| CN210294489U (en) | Battery pack insulation detection system | |
| CN108197086B (en) | Passive element parameter analysis method and device | |
| CN110289595A (en) | A kind of the zero-sequence over-current protection setting method and relevant apparatus of high-impedance transformer | |
| CN108173251B (en) | Lightning protection circuit of alarm control system | |
| CN104217042B (en) | The System and method for of the multiple pull-up resistor of automation inspection | |
| CN103743942A (en) | Detection method for initiating explosive device leakage current of power distribution module with solid relay | |
| CN112782529A (en) | Zero sequence power polarity-based line selection method and system | |
| CN111566490B (en) | Insulation detection circuit, mainboard and relevant device | |
| CN105634038B (en) | Electric signal output and power determination method and device | |
| JP2021089153A (en) | Analyzing method of transformer lightning surge response | |
| CN105048433A (en) | Surge protection design method for DC-DC power supply | |
| CN105426557A (en) | System and method for automatically checking pull-up resistor | |
| CN215600225U (en) | PT ferromagnetic resonance suppression device | |
| EP2786160B1 (en) | Earthed connection detection | |
| CN102944727A (en) | Switchgear arrester leakage current sampling device | |
| Prymak et al. | Capacitor EDA models with compensations for frequency, temperature, and DC bias | |
| CN108695837A (en) | A kind of surging protection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |