CN220085010U - Generator electrical performance detecting system - Google Patents
Generator electrical performance detecting system Download PDFInfo
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- CN220085010U CN220085010U CN202320576616.8U CN202320576616U CN220085010U CN 220085010 U CN220085010 U CN 220085010U CN 202320576616 U CN202320576616 U CN 202320576616U CN 220085010 U CN220085010 U CN 220085010U
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- 238000001514 detection method Methods 0.000 claims abstract description 22
- 238000012360 testing method Methods 0.000 claims abstract description 11
- 230000005611 electricity Effects 0.000 claims 2
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- 238000011056 performance test Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000001052 transient effect Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 2
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Abstract
The utility model provides a generator electrical performance detection system, which is characterized in that an active load module electrically connected with a generator is arranged, the active load module comprises a plurality of active load components which are connected with the generator in parallel, rated load powers of different active load components are different, when a certain type of generator needs a certain load power, a contactor in the corresponding active load component can be used for selecting, so that the problems that the load power is inconvenient to adjust and the cost is high during the detection and the test of the generator are effectively solved, and particularly, the active load component comprises at least one contactor and a resistive resistor electrically connected with the contactor to form a rated active load, and the contactor is used for closing the contactor when a magnetic field is generated through the current flowing through a coil.
Description
Technical Field
The utility model belongs to the technical field of electric performance detection of generators, and particularly relates to an electric performance detection system of a generator.
Background
The generator is a mechanical device for converting mechanical energy into electric energy, and is usually driven by a water turbine, a steam turbine, a diesel engine or other power machines, so that energy generated by combustion or nuclear fission of water flow, air flow and fuel is converted into mechanical energy to be transmitted to the generator, and then the mechanical energy is converted into electric energy by the generator, so that the generator has wide application in industrial and agricultural production, national defense, science and technology and daily life.
The generator set is used as power supply equipment, and electric energy meeting the requirements is supplied to electric equipment, and if the power supply quality is not met, the energy waste and the damage of the electric equipment exist after the generator set is put into the market, and then the electric performance of the generator is required to be detected.
Generally, when a generator is tested, the required load is required to be regulated, and the electrical properties such as a steady-state voltage regulation rate, a steady-state frequency regulation rate, a voltage fluctuation rate, a frequency fluctuation rate, a transient voltage regulation rate, a transient frequency regulation rate, a voltage regulation time, a frequency regulation time and the like are tested, and compared with standard performance indexes, so that whether the generating quality of the generator is qualified or not is judged, but the current regulation of load power is complicated and expensive, specifically, the size of the load power is related to the resistance value, a system with different resistance value resistor combinations is required to be prepared in advance for realizing the load power change, when a certain load power is required to be used, the circuit is required to be switched manually, namely, the circuit is reconnected, the operation is troublesome, and in addition, if the load power can be regulated by changing the different resistance value resistor combinations into adjustable resistors, although the circuit is not required to be switched frequently, the mode can clearly greatly increase the cost.
Disclosure of Invention
Based on the above, the utility model aims to provide a generator electrical performance detection system, which aims to solve the problems of inconvenient load power adjustment and high cost in the generator detection test in the prior art.
The utility model provides a generator electrical performance detection system, which is used for meeting the electrical performance detection of different types of generators and comprises electrical performance detection equipment which is electrically connected with the generators respectively, and further comprises an active load module which is electrically connected with the generators and comprises a plurality of active load components which are connected with the generators in parallel, wherein the active load component comprises at least one contactor and a resistive resistor which is electrically connected with the contactor so as to form a rated active load, and the contactor is used for closing a contact when a magnetic field is generated by the current flowing through a coil.
The electric performance detection system of the generator provided by the utility model is characterized in that the active load module is electrically connected with the generator, the active load module comprises a plurality of active load components which are connected with the generator in parallel, rated load powers of different active load components are different, when a certain type of generator needs a certain load power, the contactor in the corresponding active load component can be used for selecting, so that the problems that the load power is inconvenient to adjust and the cost is high during the detection and the test of the generator are effectively solved, and particularly, the active load component comprises at least one contactor and a resistive resistor which is electrically connected with the contactor to form a rated active load, and the contactor is used for closing the contactor when a magnetic field is generated through the current flowing through a coil.
Further, the contactor comprises an input contact and an output contact, the number of the input contacts is at least one, one end of the input contact is electrically connected with the input end of the generator, the other end of the input contact is electrically connected with one end of the resistive resistor, the other end of the resistive resistor is electrically connected with one end of the output contact, and the other end of the output contact is electrically connected with the output end of the generator to form a loop.
Further, when the number of the resistive resistors is plural, the resistance values of the resistive resistors are equal.
Further, the resistance value calculation formula of the resistive resistor is as follows:
R＝U2/(NP)；
wherein R is represented as the resistance value of the resistive resistor, U is represented as the working voltage of the generator, N is represented as the number of the resistive resistors, and P is represented as the load power.
Further, each contactor is further electrically connected with a controller, and the controller is used for controlling the corresponding contactor to be closed according to the load power required by the generator.
Further, when the generator type is a three-phase generator, each phase is electrically connected to each of the resistive resistors through each input contact of the contactor.
Further, when the generator is a single-phase generator, one end of each input contact of the contactor is collected and electrically connected with the single phase, and the other end of each input contact is electrically connected with each resistive resistor.
Other advantages and technical effects of a generator electrical performance testing system according to the present utility model will be described in detail in the detailed description.
Drawings
FIG. 1 is a schematic diagram of a system for detecting electrical performance of a generator and a generator according to an embodiment of the present utility model;
FIG. 2 is a schematic circuit diagram of an active load assembly according to an embodiment of the present utility model;
the following detailed description will further illustrate the utility model with reference to the above-described drawings.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Several embodiments of the utility model are presented in the figures. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and 2, fig. 1 is a schematic diagram of a generator electrical performance detection system and a generator in an embodiment of the present utility model, fig. 2 is a schematic diagram of a circuit of an active load assembly in an embodiment of the present utility model, the generator electrical performance detection system includes electrical performance detection devices electrically connected to the generator, the electrical performance detection devices are apparatuses for measuring voltage, current, power, frequency, etc., the apparatuses are in communication with a PLC (Programmable Logic Controller ), the values obtained by the PLC are calculated by a server electrically connected to each apparatus, and the electrical performance values include a steady-state voltage adjustment rate, a steady-state frequency adjustment rate, a voltage fluctuation rate, a frequency fluctuation rate, a transient voltage adjustment rate, a transient frequency adjustment rate, etc., and finally each electrical performance value obtained by the test is compared with a standard value, so as to determine whether the generator meets a requirement.
Specifically, the system further comprises an active load module electrically connected with the generator, the active load module comprises a plurality of active load components which are connected with the generator in parallel, wherein the active load component comprises at least one contactor and a resistive resistor electrically connected with the contactor so as to form a rated active load, the contactor is used for closing the contact when a magnetic field is generated by flowing current through a coil, and it can be understood that each active load component can comprise a plurality of contactors which are connected in parallel, and each contactor is connected with the same resistive resistor, namely the same set of resistive resistor is used for completing the test of different types of generators under the same active load.
It should be noted that, the contactor includes input contact and output contact, the quantity of input contact is at least one, input contact's one end and the input end electric connection of generator, input contact's the other end and resistive resistor's one end electric connection, resistive resistor's the other end and output contact's one end electric connection, output contact's the other end and generator's output end electric connection, in this embodiment, consider three-phase generator's use, the quantity of resistive resistor is 3, each phase is connected with each resistive resistor electric connection through contactor's each input contact respectively, U, V and W in three phases are established ties with 3 resistive resistors respectively, so both can satisfy three-phase generator's normal operating, can accomplish the reposition of redundant personnel in single-phase generator's operation, i.e. contactor's each input contact's one end gathers, and be connected with single-phase electric connection, each input contact's the other end is connected with each resistive resistor respectively.
Further, when the number of the resistive resistors is plural, the resistance values of the resistive resistors are equal, and specifically, the resistance value calculation formula of the resistive resistor is:
R＝U2/(NP)；
wherein R is represented as the resistance value of the resistive resistor, U is represented as the rated operating voltage of the generator, N is represented as the number of the resistive resistors, and P is represented as the load power.
In addition, each contactor is also electrically connected with a controller respectively, and the controller is used for controlling the corresponding contactor to be closed according to the load power required by the generator, so that the load power is more convenient to adjust.
In this embodiment, as shown in fig. 2, there are 4 contactors connected in parallel with the generator, that is, K14, K15, K16 and K17, where K14, K15 and K16 are respectively connected with the single-phase generator and the direct-current generator with different frequencies, and K17 is connected with the three-phase generator, taking the contactor K14 as an example, concretely, as shown in the figure, K14 has three input contacts and one output contact, since one end of the contactor K14 is connected with the single-phase generator, one ends of the three input contacts are collected and electrically connected with the single-phase, wherein the other ends of the three input contacts are respectively connected with one ends of the resistive resistors R07, R15 and R13 through lines D11, D12, D13, one ends of the output contacts are respectively connected with one ends of the generator, the other ends of the output contacts are respectively connected with one ends of the resistive resistors R07, R15 and R13, the other ends of the output contacts are respectively connected with the collection ends of the other resistive resistors R07, R15 and R13 through lines D10, R13, and the collection ends of the other ends of the resistive resistors R13 are respectively, and the connection of the three input contacts with the three common lines K15 and the same common lines D11, D12 and D13, D13 are respectively, and the connection of the three input contacts K16 are respectively with the collection ends of the other ends of the resistive resistors R13, and the three input contacts are respectively, and the connection of the three input contacts are respectively. If the rated active load of the active load assembly shown in fig. 2 is 1kWh, then, given an operating voltage of 230V, the resistance of the resistive resistors R07, R15, R13 is known to be about 18 ohms according to the formula r=u2/(NP).
It should be noted that, the specific operation mode of the generator electrical performance detection system may be that different types of generators are electrically connected with the electrical performance detection device, where the generator further includes an active load module electrically connected with the generator, where the active load module includes a plurality of active load components connected in parallel with each other and connected with the generator, each active load component includes a rated active load, specifically, the active load component includes at least one contactor and a resistive resistor electrically connected with the contactor, where the contactor is used to close a contact when a magnetic field is generated by flowing current through a coil, and if the generator needs to perform electrical performance detection under an active load of 3kWh, the active load component corresponding to the generator frequency may be controlled to operate, i.e. the corresponding contactor is closed, so as to implement the active load of 3kWh, for example, the active load component of 1kWh and the active load component of 2kWh may be controlled to operate simultaneously, or the active load component of 3kWh may be controlled to operate simultaneously, and finally, the generator is operated under a specific active load, where each obtained electrical performance value of the generator is compared with a standard value, so as to determine whether the generator is qualified.
In summary, the electric performance detection system of the generator provided by the utility model is characterized in that the active load module is electrically connected with the generator, the active load module comprises a plurality of active load components which are connected with the generator in parallel, rated load powers of different active load components are different, when a certain type of generator needs a certain load power, the contactor in the corresponding active load component can be used for selecting, so that the problems that the load power is inconvenient to adjust and the cost is high during the detection and the test of the generator are effectively solved, and particularly, the active load component comprises at least one contactor and a resistive resistor which is electrically connected with the contactor, so that the rated active load is formed, and the contactor is used for closing the contactor when a magnetic field is generated by the current flowing through a coil.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (7)
1. The utility model provides a generator electrical property detecting system for satisfy the electrical property detection of different grade type generator, including the electrical property detection equipment who is connected with generator electricity respectively, its characterized in that, the system still includes with generator electricity connection's active load module, active load module includes a plurality of mutual parallelly connected access the active load subassembly of generator, wherein, active load subassembly include at least one contactor and with contactor electric connection's resistive resistance, in order to constitute rated active load, the contactor is used for when flowing through the electric current through the coil and producing the magnetic field, makes the contact closed.
2. The electrical performance testing system of claim 1, wherein the contactor comprises at least one input contact and at least one output contact, one end of the input contact is electrically connected to the input end of the generator, the other end of the input contact is electrically connected to one end of the resistive resistor, the other end of the resistive resistor is electrically connected to one end of the output contact, and the other end of the output contact is electrically connected to the output end of the generator to form a loop.
3. The electrical performance inspection system of claim 2, wherein when the number of resistive resistors is plural, the resistance values of the respective resistive resistors are equal.
4. The electrical performance testing system of claim 3, wherein the resistive resistance is calculated as:
R＝U2/(NP)；
wherein R is represented as the resistance value of the resistive resistor, U is represented as the working voltage of the generator, N is represented as the number of the resistive resistors, and P is represented as the load power.
5. The electrical performance testing system of claim 4, wherein each of said contactors is further electrically connected to a controller for controlling the closing of the corresponding contactor contacts based on the load power required by the generator.
6. The electrical performance testing system of claim 5, wherein when the generator is a three-phase generator, each phase is electrically connected to each of the resistive resistors through each input contact of the contactor.
7. The electrical performance test system of claim 5, wherein when the generator is a single-phase generator, one end of each input contact of the contactor is gathered and electrically connected to the single phase, and the other end of each input contact is electrically connected to each of the resistive resistors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320576616.8U CN220085010U (en) | 2023-03-22 | 2023-03-22 | Generator electrical performance detecting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320576616.8U CN220085010U (en) | 2023-03-22 | 2023-03-22 | Generator electrical performance detecting system |
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| Publication Number | Publication Date |
|---|---|
| CN220085010U true CN220085010U (en) | 2023-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320576616.8U Active CN220085010U (en) | 2023-03-22 | 2023-03-22 | Generator electrical performance detecting system |
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| Country | Link |
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| CN (1) | CN220085010U (en) |
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- 2023-03-22 CN CN202320576616.8U patent/CN220085010U/en active Active
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