CN104967098A - Method of improving reliability of circuit breaker of vehicle-mounted diesel generator - Google Patents
Method of improving reliability of circuit breaker of vehicle-mounted diesel generator Download PDFInfo
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- CN104967098A CN104967098A CN201510351180.2A CN201510351180A CN104967098A CN 104967098 A CN104967098 A CN 104967098A CN 201510351180 A CN201510351180 A CN 201510351180A CN 104967098 A CN104967098 A CN 104967098A
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- short circuit
- calculation result
- circuit calculation
- truck diesel
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Abstract
The invention discloses a method of improving reliability of a circuit breaker of a vehicle-mounted diesel generator. Firstly, the vehicle-mounted diesel generator and a motor with a corresponding capacity are modeled respectively for short circuit calculation, and a short circuit calculation result of the vehicle-mounted diesel generator and a short circuit calculation result of the motor are recorded; and then, according to the short circuit calculation result of the vehicle-mounted diesel generator and the short circuit calculation result of the motor obtained in the first step, an action curve and a setting value of a feeder circuit breaker are selected. The method of the invention has the technical effects that quick break actions of the circuit breaker can be improved, and reliability and selectivity are enhanced.
Description
Technical field
The present invention relates to a kind of method improving the breaker reliability of truck diesel alternator.
Background technology
The load major part of diesel engine generator supply current is motor, the large I of its individual capacity and generator comparable, when supply current is short-circuited, not only generator is short circuit current supply source, the motor run also provides short circuit current usually, and truck diesel alternator supply current is as emergency power supply, the probability that is short-circuited is higher.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, providing a kind of method improving the breaker reliability of truck diesel alternator, it can improve circuit breaker quick-break action and reliability, selectivity.
A kind of technical scheme realizing above-mentioned purpose is: a kind of method improving the breaker reliability of truck diesel alternator, comprises the following steps:
Step S1, by the motor of truck diesel alternator and corresponding capacity respectively modeling carry out short circuit calculation, and record the short circuit calculation result of truck diesel alternator and the short circuit calculation result of described motor;
Step S2, the short circuit calculation result of the truck diesel alternator obtained by step S1 and the short circuit calculation result of described motor select operation curve and the setting value of feeder breaker.
A kind of above-mentioned method improving the breaker reliability of truck diesel alternator, wherein, the capacity of described truck diesel alternator is 400kVA, and the capacity of described motor is 400kVA.
Have employed a kind of technical scheme improving the method for the breaker reliability of truck diesel alternator of the present invention, namely first by the motor of truck diesel alternator and corresponding capacity respectively modeling carry out short circuit calculation, and record the short circuit calculation result of truck diesel alternator and the short circuit calculation result of described motor; The short circuit calculation result of the truck diesel alternator obtained by step S1 again and the short circuit calculation result of described motor select operation curve and the setting value of feeder breaker, can improve the reliability of circuit breaker quick-break action, selectivity like this.
Embodiment
The present inventor, in order to understand technical scheme of the present invention better, is described in detail below by embodiment particularly:
Embodiments of the invention, a kind of method improving the breaker reliability of truck diesel alternator, comprises the following steps:
Step S1, by capacity be the truck diesel alternator of 400kVA and corresponding capacity motor respectively modeling carry out short circuit calculation, and record the short circuit calculation result of truck diesel alternator and the short circuit calculation result of described motor;
Step S2, the short circuit calculation result of the truck diesel alternator obtained by step S1 and the short circuit calculation result of described motor select operation curve and the setting value of feeder breaker.
A kind of method improving the breaker reliability of truck diesel alternator of the present invention, in step sl, be the motor of the truck diesel alternator of 400kVA and corresponding capacity when short circuit calculation is carried out in modeling respectively by capacity, need to make necessary hypothesis, for calculating to earth current.
A kind of method improving the breaker reliability of truck diesel alternator of the present invention, can improve the reliability of circuit breaker quick-break action, selectivity.
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the present invention is described, and be not used as limitation of the invention, as long as in spirit of the present invention, all will drop in Claims scope of the present invention the change of the above embodiment, modification.
Claims (2)
1. improve a method for the breaker reliability of truck diesel alternator, it is characterized in that, comprise the following steps:
Step S1, by the motor of truck diesel alternator and corresponding capacity respectively modeling carry out short circuit calculation, and record the short circuit calculation result of truck diesel alternator and the short circuit calculation result of described motor;
Step S2, the short circuit calculation result of the truck diesel alternator obtained by step S1 and the short circuit calculation result of described motor select operation curve and the setting value of feeder breaker.
2. a kind of method improving the breaker reliability of truck diesel alternator according to claim 1, is characterized in that, the capacity of described truck diesel alternator is 400kVA, and the capacity of described motor is 400kVA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351180.2A CN104967098A (en) | 2015-06-23 | 2015-06-23 | Method of improving reliability of circuit breaker of vehicle-mounted diesel generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351180.2A CN104967098A (en) | 2015-06-23 | 2015-06-23 | Method of improving reliability of circuit breaker of vehicle-mounted diesel generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104967098A true CN104967098A (en) | 2015-10-07 |
Family
ID=54221093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510351180.2A Pending CN104967098A (en) | 2015-06-23 | 2015-06-23 | Method of improving reliability of circuit breaker of vehicle-mounted diesel generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104967098A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130271879A1 (en) * | 2012-04-17 | 2013-10-17 | Siemens Aktiengesellschaft | Fault Protection System For A Power System Of Dynamically Positioned Vessel |
| CN104319738A (en) * | 2014-10-17 | 2015-01-28 | 国家电网公司 | Protection setting calculation model for high-voltage variable-frequency motor |
-
2015
- 2015-06-23 CN CN201510351180.2A patent/CN104967098A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130271879A1 (en) * | 2012-04-17 | 2013-10-17 | Siemens Aktiengesellschaft | Fault Protection System For A Power System Of Dynamically Positioned Vessel |
| CN104319738A (en) * | 2014-10-17 | 2015-01-28 | 国家电网公司 | Protection setting calculation model for high-voltage variable-frequency motor |
Non-Patent Citations (1)
| Title |
|---|
| 中国船舶工业集团公司 等: "《船舶设计使用手册（第3版）电气分册》", 31 August 2013, 国防工业出版社 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151007 |