CN114120593A - Fault alarm device for high-voltage pre-purchase ammeter arrearage tripping - Google Patents
Fault alarm device for high-voltage pre-purchase ammeter arrearage tripping Download PDFInfo
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- CN114120593A CN114120593A CN202111307527.5A CN202111307527A CN114120593A CN 114120593 A CN114120593 A CN 114120593A CN 202111307527 A CN202111307527 A CN 202111307527A CN 114120593 A CN114120593 A CN 114120593A
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- time relay
- contact
- audible
- time
- contact arranged
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/06—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity with means for prepaying basic charges, e.g. rent for meters
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- 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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/185—Electrical failure alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention relates to a fault alarm device for arrearage tripping of a high-voltage pre-purchased ammeter, which comprises: the system comprises an ammeter, a trip switch, a time relay, an audible and visual alarm and an external power supply; the ammeter is established to purchase electric formula multi-functional ammeter in advance, includes: a normally open contact; the tripping switch is provided with an outlet side contact; a time relay, comprising: a trigger contact and an action contact; audible-visual annunciator includes: a signal terminal; the external power supply is used for supplying power to the time relay and the dry contact; a normally open contact arranged on the electric meter, a trigger contact arranged on the time relay and an external power supply are electrically connected; the outlet side contact arranged on the tripping switch, the action contact arranged on the time relay and the signal terminal arranged on the audible and visual alarm are electrically connected. The fault alarm device for the arrearage tripping of the high-voltage pre-purchased ammeter monitors the state of the switch after tripping and alarms and reminds.
Description
Technical Field
The invention relates to the technical field of alarming, in particular to a fault alarming device for arrearage tripping of a high-voltage pre-purchased ammeter.
Background
The pre-purchased electric meter, also called pre-paid electric energy meter or quantitative electric energy meter, has the metering function of a common electric energy meter and adopts a mode of purchasing before using at a user side. When the pre-purchased power is used up, the power supply is automatically cut off and the power supply is stopped. Therefore, pre-purchased electricity meters have been widely used.
At present, a pre-purchased electricity meter usually adopts a switch tripping mode to disconnect a power supply side and a user side to realize power failure. However, in the conventional switch trip and power-off manner, the state of the switch cannot be determined, that is, whether the switch is in the correct state cannot be confirmed.
Disclosure of Invention
In order to solve the technical problems in the background technology, the invention provides a fault alarm device for the arrearage tripping of a high-voltage pre-purchased ammeter, which monitors the state of a switch after tripping and alarms to remind.
The technical scheme adopted by the invention is as follows:
the high pressure is purchased failure alarm device of ammeter arrearage trip in advance, includes:
ammeter, trip switch, time relay, audible and visual alarm, external power source.
The ammeter sets up to purchase electric formula multifunctional electric meter in advance, includes: a normally open contact;
the trip switch, comprising: a wire outlet side contact;
the time relay includes: a trigger contact and an action contact;
the audible and visual alarm comprises: a signal terminal;
the external power supply is used for supplying power to the time relay and the dry contact.
A normally open contact arranged on the electric meter and a trigger contact arranged on the time relay are connected in series and are electrically connected with an external power supply;
the outlet side contact arranged on the tripping switch, the action contact arranged on the time relay and the signal terminal arranged on the audible and visual alarm are connected in series.
Further, audible and visual alarm sets up to two-wire system alarm, includes:
and the power supply/signal terminal is connected with the outlet side contact arranged on the trip switch and the action contact arranged on the time relay in series.
Further, the time relay further includes:
and the time setting code dialing device is used for setting the trigger delay time and the action recovery time.
Further, the trigger delay time is set to T1。
Further, the action recovery time is set to T2。
The alarming method for the arrearage tripping fault of the high-voltage pre-purchased electricity meter comprises the following steps:
and (4) alarming:
and the reading of the residual electricity consumption of the electric meter is less than or equal to zero.
The normally open contact on the electric meter is closed, so that the normally open contact on the electric meter, the trigger contact on the time relay and the loop of the power supply are conducted, the trigger contact on the time relay is electrified, the time relay is triggered to start time delay, and T1After the time, the action contact arranged on the time relay is closed to make the trip switchThe loop of the side contact of the outgoing line arranged on the audible and visual alarm, the action contact arranged on the time relay and the signal terminal arranged on the audible and visual alarm is conducted, and the signal terminal arranged on the audible and visual alarm is electrified, so that the audible and visual alarm is triggered and gives an alarm.
And (3) recovering:
and reading the residual electricity consumption of the electricity meter is more than zero.
The normal open contact arranged on the electric meter is restored to the normal open state, the normal open contact arranged on the electric meter, the trigger contact arranged on the time relay and the loop of the power supply are broken, the trigger contact arranged on the time relay is powered off, the internal contact of the time relay is converted to start time delay, and T2After time, the action contact arranged on the time relay is disconnected, so that the loop of the outgoing line side contact arranged on the trip switch, the action contact arranged on the time relay and the signal terminal arranged on the audible and visual alarm is broken, the signal terminal arranged on the audible and visual alarm is powered off, the audible and visual alarm stops alarming, and the audible and visual alarm is recovered to the initial state.
Further, the trigger delay time T1Greater than 3 minutes.
Further, the action recovery time T2Greater than 10 minutes.
The fault alarm device and the demonstration method for the arrearage tripping of the high-voltage pre-purchased ammeter have the advantages that:
1. confirming whether the pre-purchased electric quantity in the electric meter is zero or not through a normally open contact arranged on the electric meter, a trigger contact arranged on a time relay and a loop of a power supply;
2. triggering the audible and visual alarm to give an alarm through a loop of an outgoing line side contact arranged on the trip switch, an action contact arranged on the time relay and a signal terminal arranged on the audible and visual alarm;
3. the condition of false alarm is prevented from occurring through the time relay.
Drawings
In order to more clearly illustrate the embodiments of the present invention, reference will now be made in brief to the accompanying drawings, which are needed in the description, and in which embodiments of the present invention are illustrated.
Fig. 1 is a schematic electrical connection diagram of a fault warning device for providing high voltage pre-purchased electricity meter arrearage tripping according to an embodiment of the present invention.
In the figure:
10. the electricity meter is provided with a power supply,
20. a trip switch is arranged on the base plate and is used for switching on and off the switch,
30. a time relay is arranged on the time-delay device,
40. an audible and visual alarm is set on the base,
50. an external power source.
Detailed Description
In order to clearly and clearly illustrate the specific implementation objects and the implementation modes of the invention, the technical scheme of the invention is completely described below, and the described examples are a part of the examples of the invention, but not all the examples. All other embodiments based on the described embodiments of the invention are within the scope of the invention without making creative efforts.
The invention relates to a fault alarm device for arrearage tripping of a high-voltage pre-purchased ammeter, which is shown in figure 1 and comprises:
the electric meter 10, the trip switch 20, the time relay 30, the audible and visual alarm 40 and the external power supply 50.
The electricity meter 10 is provided as a pre-purchase electricity-type multifunctional electricity meter, including: a normally open contact;
the trip switch 20 includes: a wire outlet side contact;
the time relay 30 includes: a trigger contact and an action contact;
the time relay 30 further includes: and the time setting code dialing device is used for setting the trigger delay time and the action recovery time. Wherein the trigger delay time is set to T1The action recovery time is set to T2；
Audible and visual alarm 40 sets up to two-wire system alarm, includes: a power supply/signal terminal connected in series with a wire outlet side contact provided on the trip switch 20 and an action contact provided on the time relay 30;
the external power source 50 is used to supply power to the time relay 30 and the dry contact.
A normally open contact arranged on the electric meter 10 and a trigger contact arranged on the time relay 30 are connected in series and are electrically connected with an external power supply 50;
the outlet side contact arranged on the trip switch 20, the action contact arranged on the time relay 30 and the signal terminal arranged on the audible and visual alarm 40 are connected in series.
According to the specific structure of the fault alarm device for the arrearage trip of the high-voltage pre-purchased ammeter, the following further explains the alarm method for the arrearage trip fault of the high-voltage pre-purchased ammeter:
and (4) alarming:
the remaining power usage reading of the meter 10 is less than or equal to zero.
The normally open contact on the electric meter 10 is closed, the normally open contact on the electric meter 10, the trigger contact on the time relay 30 and the loop of the power supply 50 are conducted, the trigger contact on the time relay 30 is electrified, the time relay 30 is triggered, the time delay is started, and T1After time, the action contact arranged on the time relay 30 is closed, so that the loops of the wire side contact arranged on the trip switch 20, the action contact arranged on the time relay 30 and the signal terminal arranged on the audible and visual alarm 40 are conducted, and the signal terminal arranged on the audible and visual alarm 40 is electrified, so that the audible and visual alarm 40 is triggered to give an alarm.
And (3) recovering:
the remaining power usage of the meter 10 is read to be greater than zero.
The normally open contact arranged on the electric meter 10 is restored to the normally open state, the normally open contact arranged on the electric meter 10, the trigger contact arranged on the time relay 30 and the loop of the power supply 50 are broken, the trigger contact arranged on the time relay 30 loses power, the internal contact of the time relay 30 is converted, and the time delay is started, so that T2After time, the action contact arranged on the time relay 30 is disconnected, so that the loop of the wire side contact arranged on the trip switch 20, the action contact arranged on the time relay 30 and the signal terminal arranged on the audible and visual alarm 40 is broken, the signal terminal arranged on the audible and visual alarm 40 is powered off, the audible and visual alarm 40 stops alarming, and the initial state is recovered.
Based on the above, the embodiment of the fault alarm device for the arrearage trip of the high-voltage pre-purchased electricity meter is suggested, and through the above description, various changes and modifications can be made by related workers within the scope without departing from the technical idea of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. The high-voltage prepayment ammeter arrearage tripping fault alarm device is characterized in that:
the method comprises the following steps:
an electric meter (10), a trip switch (20), a time relay (30), an audible and visual alarm (40) and an external power supply (50),
the electricity meter (10) is arranged as a pre-purchase electricity-type multifunctional electricity meter, and comprises: the normally-open contact is connected with the power supply,
the trip switch (20) comprising: a contact point at the side of the outgoing line,
the time relay (30) comprising: a trigger contact and an action contact are arranged on the shell,
the audible and visual alarm (40) comprises: a signal terminal for receiving a signal from a signal source,
the external power supply (50) is used for supplying power to the time relay (30) and the dry contact;
a normally open contact arranged on the electric meter (10) and a trigger contact arranged on the time relay (30) are connected in series and are electrically connected with an external power supply (50),
the outlet side contact arranged on the tripping switch (20), the action contact arranged on the time relay (30) and the signal terminal arranged on the audible and visual alarm (40) are connected in series.
2. The fault alarm device for arrearage tripping of the high-voltage pre-purchased electricity meter according to claim 1, characterized in that:
audible-visual annunciator (40) set up to two-wire system alarm, include:
and the power supply/signal terminal is connected with an outlet side contact arranged on the trip switch (20) and an action contact arranged on the time relay (30) in series.
3. The fault alarm device for arrearage tripping of the high-voltage pre-purchased electricity meter according to claim 1, characterized in that:
the time relay (30) further comprises:
and the time setting code dialing device is used for setting the trigger delay time and the action recovery time.
4. The fault alarm device for arrearage tripping of the high-voltage pre-purchased electricity meter according to claim 3, characterized in that:
the trigger delay time is set to T1。
5. The fault alarm device for arrearage tripping of the high-voltage pre-purchased electricity meter according to claim 4, characterized in that:
the action recovery time is set to T2。
6. The method for alarming the arrearage trip fault of the high-voltage pre-purchase electric meter according to claim 5, wherein the method comprises the following steps:
and (4) alarming:
the reading of the residual electricity consumption of the electricity meter (10) is less than or equal to zero,
the normally open contact arranged on the electric meter (10) is closed, the normally open contact arranged on the electric meter (10), the trigger contact arranged on the time relay (30) and the loop of the power supply (50) are conducted, the trigger contact arranged on the time relay (30) is electrified, the time relay (30) is triggered, and the time delay is started, so that the T1After time, an action contact arranged on the time relay (30) is closed, so that a loop of a wire side contact arranged on the trip switch (20), an action contact arranged on the time relay (30) and a signal terminal arranged on the audible and visual alarm (40) is conducted, and the signal terminal arranged on the audible and visual alarm (40) is electrified, so that the audible and visual alarm (40) is triggered and gives an alarm;
and (3) recovering:
the reading of the remaining electricity consumption of the electricity meter (10) is greater than zero,
the normally open contact arranged on the electric meter (10) is restored to the normally open state, the normally open contact arranged on the electric meter (10) and the trigger arranged on the time relay (30)The loop of the contact and the power supply (50) is broken, the trigger contact arranged on the time relay (30) loses power, the internal contact of the time relay (30) is switched to start time delay, T2After time, an action contact arranged on the time relay (30) is disconnected, so that a loop of a wire side contact arranged on the trip switch (20), the action contact arranged on the time relay (30) and a signal terminal arranged on the audible and visual alarm (40) is disconnected, the signal terminal arranged on the audible and visual alarm (40) is powered off, the audible and visual alarm (40) stops alarming, and the initial state is recovered.
7. The method for alarming the arrearage trip fault of the high-voltage pre-purchase electric meter according to claim 6, wherein the method comprises the following steps:
the trigger delay time T1Greater than 3 minutes.
8. The method for alarming the arrearage trip fault of the high-voltage pre-purchase electric meter according to claim 6, wherein the method comprises the following steps:
the action recovery time T2Greater than 10 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111307527.5A CN114120593B (en) | 2021-11-05 | 2021-11-05 | Alarm method of fault alarm device for arrearage tripping of high-voltage pre-purchased ammeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111307527.5A CN114120593B (en) | 2021-11-05 | 2021-11-05 | Alarm method of fault alarm device for arrearage tripping of high-voltage pre-purchased ammeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114120593A true CN114120593A (en) | 2022-03-01 |
| CN114120593B CN114120593B (en) | 2023-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111307527.5A Active CN114120593B (en) | 2021-11-05 | 2021-11-05 | Alarm method of fault alarm device for arrearage tripping of high-voltage pre-purchased ammeter |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698696A (en) * | 2013-12-18 | 2014-04-02 | 国家电网公司 | Money-owning tripping switch detection device |
| US20140300481A1 (en) * | 2013-04-03 | 2014-10-09 | Tektronix, Inc. | Relay failure detection system |
| CN204269703U (en) * | 2014-12-16 | 2015-04-15 | 天津天保电力有限公司 | Electricity charge arrearage sound and light alarm resetting system |
| CN204835489U (en) * | 2015-06-26 | 2015-12-02 | 国家电网公司 | Transformer isolative protection time delay trip protections device of reporting to police that opens door on fence |
| CN204966990U (en) * | 2015-09-30 | 2016-01-13 | 东盟电气集团南京股份有限公司 | A arrearage alarm device for european style case becomes |
| KR20180081478A (en) * | 2018-06-25 | 2018-07-16 | 주식회사 나은에너지 | Electric failure master detector |
| US20180218584A1 (en) * | 2017-02-01 | 2018-08-02 | Florida Power And Light Company | Proactive power outage alerts management system and methods |
-
2021
- 2021-11-05 CN CN202111307527.5A patent/CN114120593B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140300481A1 (en) * | 2013-04-03 | 2014-10-09 | Tektronix, Inc. | Relay failure detection system |
| CN103698696A (en) * | 2013-12-18 | 2014-04-02 | 国家电网公司 | Money-owning tripping switch detection device |
| CN204269703U (en) * | 2014-12-16 | 2015-04-15 | 天津天保电力有限公司 | Electricity charge arrearage sound and light alarm resetting system |
| CN204835489U (en) * | 2015-06-26 | 2015-12-02 | 国家电网公司 | Transformer isolative protection time delay trip protections device of reporting to police that opens door on fence |
| CN204966990U (en) * | 2015-09-30 | 2016-01-13 | 东盟电气集团南京股份有限公司 | A arrearage alarm device for european style case becomes |
| US20180218584A1 (en) * | 2017-02-01 | 2018-08-02 | Florida Power And Light Company | Proactive power outage alerts management system and methods |
| KR20180081478A (en) * | 2018-06-25 | 2018-07-16 | 주식회사 나은에너지 | Electric failure master detector |
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| Publication number | Publication date |
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| CN114120593B (en) | 2023-10-10 |
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