CN102654572A - Testing method for delayed output time of signal control terminal of intelligent electric energy meter - Google Patents
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Abstract
本发明涉及一种智能电能表信号控制端子延迟输出时间测试方法，本发明采用双路录波器对所述智能电能表上电时刻的两路电压波形同时记录下来，然后计算出所述两路电压波形的输出时间差，所述时间差即是所述智能电能表信号控制端子上电瞬间的延迟输出时间；所述两路电压波形分别为所述智能电能表的本身电压回路和表计断路器信号控制端子电压回路的两路电压波形；所述智能电能表为外置继电器的本地费控电能表。本发明的有益效果是为外置继电器的本地费控电能表的质量检测提供了行之有效的检测方法，解决了停电再来电后出现的分励脱扣断路器二次跳闸故障。
The invention relates to a method for testing the delayed output time of a signal control terminal of an intelligent electric energy meter. The present invention uses a dual-channel wave recorder to simultaneously record two voltage waveforms at the moment when the intelligent electric energy meter is powered on, and then calculates the voltage waveforms of the two channels The output time difference of the voltage waveform, the time difference is the delayed output time at the moment when the signal control terminal of the smart energy meter is powered on; the two voltage waveforms are respectively the voltage circuit of the smart energy meter itself and the meter circuit breaker signal Control the two voltage waveforms of the terminal voltage loop; the smart energy meter is a local fee-controlled energy meter with an external relay. The invention has the beneficial effects of providing an effective detection method for the quality detection of the local cost-controlled electric energy meter with an external relay, and solving the secondary tripping fault of the shunt tripping circuit breaker after power failure and power on.
Description
技术领域 technical field
本发明涉及一种智能电能表信号控制端子延迟输出时间测试方法，适用于DDZY188C-Z、DDZY47C-Z、DDZY33C-Z等系列智能费控电能表（外置继电器）上电时刻断路器信号控制端子延迟输出时间的测试。 The invention relates to a method for testing the delayed output time of a signal control terminal of an intelligent electric energy meter, which is suitable for the circuit breaker signal control terminal of DDZY188C-Z, DDZY47C-Z, DDZY33C-Z and other series of intelligent charge control electric energy meters (external relays) at power-on time Delay output time test.
背景技术 Background technique
目前国内本地费控电能表（外置继电器），对用户断路器（开关）控制是通过表计的信号控制端子输出一个高压或低压信号来控制断路器（开关）开合状态。国内的用户断路器（开关）大多采用分励脱扣型继电器，在停电时，分励脱扣断路器仍能保持合闸状态，分励脱扣断路器上电后的延迟跳闸时间往往在1秒钟左右。如果本地费控电能表信号控制端子上电后输出的时间大于分励脱扣继电器的延迟跳闸时间，将会给用户造成停电再来电后分励脱扣断路器跳闸，造成用户再次停电。一方面给用户造成不便，另一方面由于用户不清楚跳闸原因，经常拨打供电服务热线，给电力公司造成了极大的负担。 At present, domestic local fee-controlled watt-hour meters (external relays) control the circuit breaker (switch) of the user by outputting a high-voltage or low-voltage signal through the signal control terminal of the meter to control the opening and closing state of the circuit breaker (switch). Domestic consumer circuit breakers (switches) mostly use shunt tripping relays. When the power is off, the shunt tripping circuit breaker can still maintain the closing state, and the delay trip time after the shunt tripping circuit breaker is powered on is often within 1 seconds or so. If the output time of the signal control terminal of the local fee-controlled watt-hour meter is greater than the delay tripping time of the shunt tripping relay after power-on, it will cause a power outage to the user and then the shunt tripping circuit breaker will trip after the power is turned on, causing the user to lose power again. On the one hand, it causes inconvenience to users, and on the other hand, because users do not know the reason for tripping, they often dial the power supply service hotline, which causes a great burden to the power company.
因此，如何测试本地费控电能表上电后信号输出时间，成为本地费控电能表（外置继电器）测试中的关键指标。 Therefore, how to test the signal output time of the local cost-controlled electric energy meter after power-on has become a key indicator in the test of the local electric charge-controlled electric energy meter (external relay).
发明内容 Contents of the invention
本发明所要解决的技术问题是提供一种智能电能表信号控制端子延迟输出时间测试方法。 The technical problem to be solved by the present invention is to provide a method for testing the delayed output time of the signal control terminal of the smart electric energy meter.
本发明解决其技术问题所采用的技术方案： The technical solution adopted by the present invention to solve its technical problems:
本发明采用双路录波器将所述智能电能表上电时刻的两路电压波形同时记录下来，然后计算出所述两路电压波形的输出时间差，所述时间差即是所述智能电能表信号控制端子上电后瞬间的延迟输出时间； The present invention uses a dual-channel wave recorder to simultaneously record the two-way voltage waveforms at the moment when the smart electric energy meter is powered on, and then calculates the output time difference of the two-way voltage waveforms, and the time difference is the signal of the smart electric energy meter The instantaneous delay output time after the control terminal is powered on;
所述两路电压波形分别为所述智能电能表的本身电压回路和表计断路器信号控制端子电压回路的两路电压波形； The two-way voltage waveforms are respectively the two-way voltage waveforms of the self-voltage loop of the smart electric energy meter and the voltage loop of the signal control terminal of the meter circuit breaker;
所述智能电能表为外置继电器的本地费控电能表。 The smart watt-hour meter is a local fee-controlled watt-hour meter with an external relay.
将上述所测得的断路器信号控制端子上电时刻延时输出时间与分励脱扣断路器延迟时间进行比较，若断路器信号控制端子上电瞬间的延时输出时间小于分励脱扣断路器延迟时间，则说明本地费控电能表（外置继电器）不会给用户造成停电再来电后分励脱扣断路器跳闸故障。 Compare the delay output time measured above when the circuit breaker signal control terminal is powered on with the delay time of the shunt tripping circuit breaker. If the delayed output time at the moment the circuit breaker signal control terminal is powered on is less than If the delay time of the switch is long, it means that the local fee-controlled watt-hour meter (external relay) will not cause the user to trip the shunt tripping circuit breaker after the power failure and then the power call.
本发明的有益效果是为外置继电器的本地费控电能表的质量检测提供了行之有效的检测方法，解决了停电再来电后出现的分励脱扣断路器二次跳闸故障。 The invention has the beneficial effects of providing an effective detection method for the quality detection of the local fee-controlled electric energy meter with an external relay, and solving the secondary tripping fault of the shunt tripping circuit breaker after power failure and power on.
附图说明 Description of drawings
图1为本地费控电能表（外置继电器）与双路录波器的接线图； Figure 1 is the wiring diagram of the local fee-controlled watt-hour meter (external relay) and the dual-channel recorder;
图2为本发明的测试步骤方块图； Fig. 2 is a block diagram of test steps of the present invention;
图3为双路录波器显示屏显示内容示意图。 Figure 3 is a schematic diagram of the contents displayed on the display screen of the dual-channel recorder.
在图1中，1为本地费控电能表（外置继电器），2为双路录波器，IN1、IN2分别为双路录波器的第一、第二路输入；N为智能费控电能表信号控制端子；X1为智能费控电能表火线输入端子；X2为智能费控电能表火线输出端子；Y1为智能费控电能表零线输入端子；Y2为智能费控电能表零线输出端子；A1、A2为双路录波器第一路输入端子；B1、B2为双路录波器第一路输入端子。 In Figure 1, 1 is the local fee-controlled watt-hour meter (external relay), 2 is the dual-channel recorder, IN1 and IN2 are the first and second inputs of the dual-channel recorder respectively; N is the intelligent fee control Electric energy meter signal control terminal; X1 is the input terminal of the live line of the intelligent cost-controlled electric energy meter; X2 is the output terminal of the active line of the intelligent electric charge-controlled electric energy meter; Y1 is the input terminal of the neutral line of the intelligent electric charge-controlled electric energy meter; Y2 is the output terminal of the zero line of the intelligent electric charge-controlled electric energy meter Terminals; A1 and A2 are the first input terminals of the dual-channel oscilloscope; B1 and B2 are the first input terminals of the dual-channel oscilloscope.
具体实施方式 Detailed ways
本发明采用双路录波器对所述智能电能表上电时刻的两路电压波形同时记录下来，然后计算出所述两路电压波形的输出时间差，所述时间差即是所述智能电能表信号控制端子上电后瞬间的延迟输出时间； The present invention uses a dual-channel wave recorder to simultaneously record the two-way voltage waveforms at the moment when the smart electric energy meter is powered on, and then calculates the output time difference of the two-way voltage waveforms, and the time difference is the signal of the smart electric energy meter The instantaneous delay output time after the control terminal is powered on;
所述两路电压波形分别为所述智能电能表的本身电压回路和表计断路器信号控制端子电压回路的两路电压波形； The two-way voltage waveforms are respectively the two-way voltage waveforms of the self-voltage loop of the smart electric energy meter and the voltage loop of the signal control terminal of the meter circuit breaker;
所述智能电能表为外置继电器的本地费控电能表。 The smart watt-hour meter is a local fee-controlled watt-hour meter with an external relay.
具体测试步骤如下（以单相费控电能表为例，见图2）： The specific test steps are as follows (take the single-phase cost-controlled watt-hour meter as an example, see Figure 2):
（1）按图1将双路录波器与本地费控电能表（外置继电器）进行接线： (1) According to Figure 1, connect the dual-channel oscilloscope with the local fee-controlled electric energy meter (external relay):
将FLUKE 199C双路录波器的第一路输入端子A1接在断路器控制端子N上，将其端子A2接到本地费控电能表零线Y2上；将FLUKE 199C双路录波器的第二路输入端子B1接在表计火线输入X1上，将其端子B2接到本地费控电能表零线Y2上。 Connect the first input terminal A1 of the FLUKE 199C dual-channel oscilloscope to the control terminal N of the circuit breaker, and connect its terminal A2 to the zero line Y2 of the local fee-controlled electric energy meter; connect the first input terminal of the FLUKE 199C dual-channel oscilloscope The two-way input terminal B1 is connected to the live wire input X1 of the meter, and its terminal B2 is connected to the zero line Y2 of the local fee-controlled electric energy meter.
（2）打开双路录波器电源。 (2) Turn on the power of the dual-channel oscilloscope.
（3）给表计加电； (3) Power up the meter;
（4）记录上电时刻的两路电压波形。 (4) Record the two voltage waveforms at the moment of power-on.
（5）计算两路电压波形上电后瞬间的时差。 (5) Calculate the time difference between the two voltage waveforms immediately after power-on.
双路录波器的型号为FLUKE199C，本发明适用于DDZY188C-Z、DDZY47C-Z、DDZY33C-Z等系列智能费控电能表（外置继电器）上电时刻断路器信号控制端子延迟输出时间的测试。 The model of the dual-channel wave recorder is FLUKE199C. This invention is suitable for testing the delay output time of the signal control terminal of the circuit breaker when the circuit breaker signal control terminal is powered on, such as DDZY188C-Z, DDZY47C-Z, DDZY33C-Z and other series of intelligent cost-controlled electric energy meters (external relays). .
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106251599A (en) * | 2016-08-05 | 2016-12-21 | 中国南方电网有限责任公司电网技术研究中心 | Remote control function test method and system for charge control electric energy meter |
| CN112363103A (en) * | 2020-10-26 | 2021-02-12 | 国网山东省电力公司电力科学研究院 | Intelligent electric energy meter communication time delay detection device and detection method |
| CN113625030A (en) * | 2021-06-22 | 2021-11-09 | 广西电网有限责任公司南宁供电局 | Electric energy metering device and method with electric quantity monitoring and protecting functions |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106251599A (en) * | 2016-08-05 | 2016-12-21 | 中国南方电网有限责任公司电网技术研究中心 | Remote control function test method and system for charge control electric energy meter |
| CN112363103A (en) * | 2020-10-26 | 2021-02-12 | 国网山东省电力公司电力科学研究院 | Intelligent electric energy meter communication time delay detection device and detection method |
| CN112363103B (en) * | 2020-10-26 | 2023-08-18 | 国网山东省电力公司营销服务中心(计量中心) | Communication time delay detection device and detection method for intelligent electric energy meter |
| CN113625030A (en) * | 2021-06-22 | 2021-11-09 | 广西电网有限责任公司南宁供电局 | Electric energy metering device and method with electric quantity monitoring and protecting functions |
| CN113625030B (en) * | 2021-06-22 | 2023-11-07 | 广西电网有限责任公司南宁供电局 | Electric energy metering method with electric energy monitoring and protecting functions |
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