Phase sequence nuclear phase module
By designing the phase sequence phase reconciliation module in the portable transfer device, automated line sequence detection and protection are realized, and the problems of manual phase reconciliation and short-term power outage operations are solved in the prior art, which improves the safety and reliability of the equipment.
Patent Information
- Application Number
- CN202411602848.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-03-28
AI Technical Summary
The lack of line sequence phase reconciliation modules in existing portable transfer devices leads to manual phase reconciliation before connecting to the cable, which cannot solve the problem of short-term power outage operation in the power supply process.
A phase sequence phase reconciliation module is designed, including a phase sequencer phase reconciliation control module, a phase sequence reconciliation control module and a phase sequence light indication module. The linear phase reconciliation is carried out through an automated way, and the timing protection module is used to avoid long-term power-on and overheating.
Line sequence detection without the need for operator handheld phase reconciliation instrument, avoiding short-term power outage operation, and preventing faults or damage caused by overheating through the timing protection module.
Smart Images
Figure CN119716282A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of line sequence detection, in particular to a phase sequence checking module. Background Art
[0002] In the power system, the phase difference of three-phase alternating current is called phase sequence. The correctness of phase sequence is crucial to the normal operation of power equipment. The portable power transfer device is used to ensure that the corresponding parameters of the power data of the two substations match, achieve smooth loop closing, and avoid impact on the power grid or damage to equipment. The access cable is an important link in the portable power transfer device to achieve low-voltage substation connection and loop closing. It is required to strictly follow the three-phase line sequence relationship for cable access. The existing power transfer device does not have a line sequence phase check module. Before it is connected to the cable, personnel need to manually check the phase with a phase check instrument, which cannot solve the problem of short-term power outages in the power supply link. Summary of the invention
[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a phase sequence checking module which does not require an operator to manually check the phase with a handheld phase checking instrument, is operation-free, and can avoid malfunction or damage caused by overheating due to long-term power-on.
[0004] The present invention is realized through the following technical scheme: a phase sequence checking module, which includes a phase sequence meter checking control module, a phase check meter automatic switching control module, and a phase sequence light indication module. The phase check meter automatic switching control module turns on or off the phase sequence meter checking control module by switching a switch. The phase sequence meter checking control module is used to check the phase sequence of the cable, and the phase sequence light indication module is used to indicate the line sequence of the cable.
[0005] Furthermore: it also includes a phase sequence module protection module, and the phase sequence module protection module is used to regularly cut off the contact between the phase sequence verification module and the power supply.
[0006] Furthermore: the phase sequence light indication module is arranged on the control panel of the device.
[0007] Furthermore: the phase sequence light indication module includes a positive phase sequence indicator light and a reverse phase sequence indicator light.
[0008] Furthermore: the positive phase sequence indicator light is green, and the reverse phase sequence indicator light is red.
[0009] Compared with the prior art, the present invention has the following beneficial effects:
[0010] The present invention embeds the phase sequence checking module inside the portable inductive transfer device. The portable inductive transfer device only needs to be connected to the cable according to the operation requirements, and the phase sequence meter checking control module of the phase sequence checking module inside the portable inductive transfer device can be directly powered on to start the phase sequence checking, and the checked phase is directly displayed to the operator for confirmation through the positive phase sequence indicator light and the reverse phase sequence indicator light, thereby realizing the phase checking of the line sequence of the cable connected to the portable inductive transfer device. Before the portable inductive transfer device is connected to the cable, there is no need for the operator to manually check the phase with the phase checking instrument. In addition, the automatic switching control module of the phase checking instrument can turn on or off the phase sequence meter checking control module within the preset time according to the preset time, and the on-off conversion is timed, operation-free, and can play a protective role. The contact between the phase sequence checking module and the power supply is timed to be cut off by the phase sequence module protection module, which can avoid the long-term current flow in the phase sequence checking module and cause long-term power-on overheating and cause failure or damage. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural block diagram of the present invention.
[0012] 1-Phase sequence meter phase control module, 2-Phase sequence meter automatic switching control module, 3-Phase sequence light indication module, 4-Phase sequence module protection module, 5-Positive phase sequence indicator light, 6-Reverse phase sequence indicator light. DETAILED DESCRIPTION
[0013] Figure 1 This is a structural block diagram of an embodiment of a phase sequence checking module provided by the present invention. The phase sequence checking module includes a phase sequence meter checking control module 1, a phase check meter automatic switching control module 2, and a phase sequence light indication module 3. The phase check meter automatic switching control module 2 turns on or off the phase sequence meter checking control module 1 by switching a switch. The phase sequence meter checking control module 1 is used to check the phase sequence of the cable, and the phase sequence light indication module 3 is used to indicate the line sequence of the cable.
[0014] It also includes a phase sequence module protection module 4, which is used to regularly cut off the contact between the phase sequence module and the power supply.
[0015] The phase sequence light indication module 3 is arranged on the control panel of the device.
[0016] The phase sequence light indication module comprises a positive phase sequence indicator light 5 and a reverse phase sequence indicator light 6.
[0017] The positive phase sequence indicator light is green and the reverse phase sequence indicator light is red.
[0018] The phase sequence checking module of the present invention is built in the interior of the portable sensorless power transfer device.
[0019] When in use, connect the portable inductive power supply transfer device to the cable according to the operation requirements, and directly power on the phase sequence meter to start the phase control module 1 to check the phase sequence of the cable. When the line sequence of the cable is positive, the positive phase sequence indicator light 5 is on, and when the line sequence of the cable is reverse, the reverse phase sequence indicator light 6 is on, thereby realizing the phase check of the line sequence of the cable connected to the portable inductive power supply transfer device, thereby achieving operation-free operation, and there is no need for the operator to manually check the phase with a handheld phase check meter.
[0020] The automatic switching control module 2 of the phase check instrument can turn on or off the phase sequence instrument phase check control module 1 within the preset time according to the preset time, and can switch on and off at a scheduled time without operation, and can also play a protective role. The contact between the phase sequence check module and the power supply is cut off at a scheduled time through the phase sequence module protection module 4, so as to avoid long-term current flow in the phase sequence check module, resulting in long-term power-on overheating and causing failure or damage.
[0021] The above detailed description is a specific description of a feasible embodiment of the present invention. The embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or modification that does not deviate from the present invention should be included in the patent scope of this case.
Claims
1. Phase sequence nuclear module, characterized by: The phase sequence checking module includes a phase sequence meter phase checking control module, a phase checking meter automatic switching control module, and a phase sequence light indication module. The phase checking meter automatic switching control module turns on or off the phase sequence meter phase checking control module by switching a switch. The phase sequence meter phase checking control module is used to check the phase sequence of the cable, and the phase sequence light indication module is used to indicate the line sequence of the cable.
2. According to the phase sequence core module of claim 1, it is characterized in that: It also includes a phase sequence module protection module, which is used to regularly cut off the contact between the phase sequence module and the power supply.
3. According to claim 2, the phase sequence core module is characterized in that: The phase sequence light indication module is arranged on the control panel of the device.
4. The phase sequence core module according to claim 3, characterized in that: The phase sequence light indication module includes a positive phase sequence indicator light and a reverse phase sequence indicator light.
5. The phase sequence core module according to claim 4, characterized in that: The positive phase sequence indicator light is green, and the reverse phase sequence indicator light is red.