CN106297506A - Distribution true type simulated platform - Google Patents

Abstract

The purpose of the present invention is to simulate the fault pattern for the switch for detecting the fault of the switch type equipment. The entire platform can be used for teaching demonstration or practical testing. It can also actively simulate fault scenarios for equipment detection or teaching demonstration. To achieve the above-mentioned effects, the real-type distribution network simulation platform of the present invention includes basic equipment and supporting power supply equipment installed in the workplace, and is also equipped with detected or simulated equipment, and the platform is provided with physical detection status and failure The state is simulated, and the device being detected or simulated is a switchgear. This platform uses the real fault physical model of distribution network equipment to reproduce the typical defects of 10kV distribution network switchgear. Laboratory reproduction under rated load.

Description

Distribution network simulation platform

technical field

The invention relates to a power equipment simulation test device, in particular to a distribution network true simulation platform.

Background technique

The safety of power equipment is fundamental to ensure the safe operation of the entire power grid. To improve the safety of the system, it is necessary to detect power grid equipment, especially some key equipment. For doubtful equipment, it is necessary to design certain occasions for simulated detection. For example, in the prior art, the patent No. 201410113121.7 "Method for simulating partial discharge of cross-linked polyethylene insulated cables and simulated detection platform" provides a simulation The invention discloses a method for partial discharge of cross-linked polyethylene insulated cables and a simulation detection platform, belonging to the technical field of live detection of power cables. The inventive method is: accurately simulate five different defect types of XLPE cables, and realize the one-to-one correspondence between the defect types and the effectiveness of partial discharge detection technology: firstly, establish a spectral library of XLPE cable partial discharge; secondly, artificially manufacture cross-linked polyethylene Typical defects of different types of insulated cables; finally, according to the characteristics of the output signal of this simulation detection platform, the judgment of defect type and degree is realized, and the defect type is one-to-one corresponding with the effectiveness of partial discharge detection technology. The simulation platform can simulate five typical faults of cables, which can significantly improve the ability to identify partial discharge faults of XLPE cables. The invention has the characteristics of simple operation, improved ability to identify XLPE cable partial discharge faults, wide application range, safety and reliability.

Corresponding simulation devices for cables, transformers or overhead lines are relatively common in the prior art, but there are few simulation tests for switchgear. This is because it is generally believed that the switchgear has a simple structure and is not prone to errors, but once the switchgear fails, it is difficult to find it.

Contents of the invention

The purpose of the present invention is to simulate the fault pattern for the switch for detecting the fault of the switch type equipment. The entire platform can be used for teaching demonstration or practical testing. It can also actively simulate fault scenarios for equipment detection or teaching demonstration.

Distribution network real-type simulation platform, including basic equipment and supporting power supply equipment installed in the workplace, and equipment to be tested or simulated is also installed. The platform is equipped with physical detection status and fault simulation status, and the detected or The equipment is switchgear, and the basic equipment includes equipment for simulating the working scene and supporting detection equipment, and also includes a fault generation device for reproducing faults on the switchgear.

Preferably, when the fault generating device is used, it is matched with a safety protection device activated, and the safety protection device includes an insulating protection fence surrounding the outside of the switchgear. In this way, during fault simulation, the safety protection device plays the role of isolation protection. It also serves as a warning to remind irrelevant personnel to leave this place.

Preferably, a fire extinguishing equipment installation slot is provided at the bottom of each insulating fence. Since it is inconvenient to carry the fire extinguishing equipment separately, the fire extinguishing equipment and the insulation protection fence are uniformly set up to facilitate the access of the fire extinguishing equipment.

Preferably, the working site is an outdoor site not less than 4,000 square meters, and the outdoor site is divided into multiple business blocks, and more than one connecting passage is provided between each block. The connection channel is not limited to the physical firmware connection, but also includes the connection of wires and communication lines.

Preferably, each business block is independently provided with a supporting power supply, and a supporting power supply supplies power to multiple blocks after the blocks are connected, and the power supplies of the basic equipment, the fault generating device and the safety protection device are all set separately. Such a structure and the connection channel can not only realize the power supply of a single block, but also if one supporting power supply fails, other power supplies can still cooperate to provide power supply.

Preferably, the switchgear is limited to grounding switches, reclosers, breakers, load switches, contactors, fuses, and load switch-fuse combinations, contactor-fuse combinations, isolating Load switches, fuse switches, open combination electrical appliances; also include related accessories connected to them. These devices are suitable for use in the platform of the present invention.

Preferably, the relevant accessories include lead wire clips, metal bars, and switch lead wire bushings.

Preferably, the fault generating device includes a high temperature melting device, a stain generating device and a physical shearing device. The high temperature melting device is used to simulate the failure scenario of high temperature burning. The stain generation device is used to simulate the fault scenario of poor contact caused by foreign objects, and the shear device is used to simulate the fault scenario of disconnected lines.

Preferably, the fault generating devices are equipped with supporting lifting devices. The lifting device facilitates the handling and installation of heavy equipment.

Preferably, the lifting device is further provided with fixing slots for fixing infrared detectors, ultraviolet detectors and ultrasonic detectors, and the fixing slots are also equipped with a remote control device. Such a structure can be used as a detection or observation device when the lifting device is idle, and at the same time, the hand-held infrared detector, ultraviolet detector and ultrasonic detector can be adjusted to the remote operation mode through the remote control device.

This platform uses the real fault physical model of distribution network equipment to reproduce the typical defects of 10kV distribution network switchgear. The laboratory reproduction under the rated load, under the premise of ensuring safety, reproduces the changes in the state parameters of the switchgear caused by various typical defects under the actual operating conditions on site, and evaluates the operation information of the equipment by extracting and analyzing the characteristic signals.

detailed description:

The real distribution network simulation platform of the present invention is composed of basic equipment installed in the work site and supporting power supply equipment, and the detected or simulated equipment is installed in the platform. When the equipment installed in the platform is a normal equipment, the platform is in the real object detection state, and the platform plays the role of detection at this time. If there is a faulty device installed in the platform, the platform is in the state of fault simulation, and the platform is in the role of fault simulation at this time. The object of platform detection and simulation in the present invention is limited to switchgear. Basic equipment includes equipment for simulating working scenarios and supporting testing equipment, as well as fault generating devices for reproducing faults on switchgear. The fault generation device can be selected from existing equipment in the prior art. When the fault generating device is used, it is matched with a safety protection device activated, and the safety protection device includes an insulating protection fence surrounding the outside of the switchgear. The bottom of each insulating fence is provided with a fire extinguishing equipment installation slot. The working site is specifically an outdoor site not less than 4,000 square meters. The outdoor site is divided into multiple business blocks, and more than one connecting passage is provided between each block. Each business block is provided with a supporting power supply separately, and a supporting power supply supplies power to multiple blocks after the blocks are connected, and the power supplies for basic equipment, fault generating devices, and safety protection devices are all set separately. The switchgear is limited to grounding switches, reclosers, breakers, load switches, contactors, fuses, and load switch-fuse combinations, contactor-fuse combinations, isolating load switches, Fuse-cut switches, open-type combined electrical appliances; and related accessories connected to them. The relevant accessories include lead wire clips, metal bars, and switch lead wire bushings. The fault generating device includes a high temperature melting device, a stain generating device and a physical shearing device.

The fault generating devices are equipped with supporting lifting devices. The lifting device is also provided with fixed slots for fixing infrared detectors, ultraviolet detectors and ultrasonic detectors, and the fixed slots are also equipped with remote control devices.

Claims (10)

1. distribution true type simulated platform, including the infrastructure device being arranged in work place and supporting Power Supplying Equipment, also pacifies Equipped with the detected or equipment of simulation, it is characterised in that: described platform is provided with detection state in kind and fault simulation state, and quilt The equipment of detection or simulation is switchgear, and infrastructure device includes simulating the equipment of operative scenario and supporting detection equipment, also Including the fault generating means for reproducing fault on switchgear.

2. distribution true type simulated platform as claimed in claim 1, it is characterised in that: described fault generating means is supporting when using Activating safety device, described safety device includes the insulating protection hurdle being centered around outside switchgear.

3. distribution true type simulated platform as claimed in claim 2, it is characterised in that: it is equipped with bottom each insulating protection hurdle and goes out Fire equipment mounting groove.

4. distribution true type simulated platform as claimed in claim 1, it is characterised in that: described work place is specially not less than The outdoor sports ground of 4000 square metres, described outdoor sports ground marks off multiple business block, is provided with more than one between each block The interface channel of bar.

5. distribution true type simulated platform as claimed in claim 4, it is characterised in that: each business block is individually provided with one and joins Set power supply, supporting power supply powers to after block connects multiple blocks, and for infrastructure device, fault generating means and The power supply of safety device is all separately provided.

6. distribution true type simulated platform as claimed in claim 1, it is characterised in that: described switchgear is only limitted to ground connection and opens On-load switch-fuse that pass, automatic circuit, breaker, on-load switch, catalyst, fuse and said elements combine Combined electrical apparatus, contact-fuse combined electric appliance, isolation on-load switch, Fuse switch, open combined electri cappliance；Also wrap Include the related accessories being connected to above them.

7. distribution true type simulated platform as claimed in claim 6, it is characterised in that: described related accessories include going between wire clamp, Metal row and switch lead-out wire sleeve pipe.

Distribution true type simulated platform the most as claimed in claims 6 or 7, it is characterised in that: described fault generating means includes height Temperature fuses device, spot generating means and physical shear device.

9. distribution true type simulated platform as claimed in claim 8, it is characterised in that: all with joining in described fault generating means The lifting device of set.

10. distribution true type simulated platform as claimed in claim 9, it is characterised in that: be additionally provided with on described lifting device for Fixing Infrared Detectors, ultraviolet detector and the fixed slot of ultrasonic detector, described fixed slot is also equipped with remote control Device.