The Correct Maintenance Techniques And Steps For Box Transformers Can Also Rejuvenate The Second Spring
Jun 30, 2023
The correct maintenance techniques and steps for box transformers can also rejuvenate the second spring
At the annual summary meeting of the electrical equipment box transformer technology department, there is always a set of data: "The shell of a certain box transformer substation has exceeded the set service life for three years, and there has been no major transformation record, refreshing the quality inspection record of the box transformer service life; the box transformer is in normal use after a heavy rain in a certain place for half a month. I believe everyone is wondering why the casing of box transformers in these places often exceeds the expected effect too much? How on earth did it happen?
In fact, these data are not out of thin air, but are regularly checked and maintained by the after-sales maintenance team of electrical equipment. The outer shell of this box transformer is like a woman's skin. Only by following the maintenance steps step by step and using the correct box transformer maintenance techniques, can the box transformer always be replaced for a second spring!
1、 Check whether the surface of the box transformer casing is dirty, whether the decorative panel is detached, whether the warning signs and box nameplate are missing, and whether the internal maintenance records of the box transformer are registered on time.
2、 Check whether the grounding terminal of the box transformer housing is in good condition, whether the ground wire is corroded, whether the lightning protection device on the top of the box is rusted and detached, whether the overall grounding circuit is disconnected, and whether the contacts of the grounding terminal are dirty. If found, replace and reinforce them in a timely manner.
3、 Pay attention to the aging, rusting, or loss of detailed parts such as the box lead terminals, pins, grounding screws, connecting screws, connecting hinges, door handles, sealing strips, etc., and replace them in a timely manner.
4、 Check whether the door body of the box transformer substation housing is polluted, whether the shutter and Whole-house fan of the box transformer substation are damaged, and whether the dust on the plasma protective screen in the box transformer substation increases, and clean it in time.
5、 Pay attention to whether the wiring inside the busbar and other equipment of the box transformer casing is good, check the logs in the central control detection system of the box transformer, and check whether the equipment will experience short circuits.
6、 Check the lighting and smoke sensing facilities inside the box transformer housing, the microcomputer central control display screen on the wall inside the box for any damage or abnormalities, pay attention to the corners of the box and equipment connections for any sand holes or poor sealing, and repair them in a timely manner.
7、 Pay attention to whether there is mold on the internal floor of the box transformer, condensation inside the box, aging at the outlet of the box, and whether the fire protection devices inside the box have expired. Replace them in a timely manner.
8、 Check if there are any missing emergency equipment inside the box transformer and make up for them in a timely manner
Only by properly handling these details can the service life of the box transformer be infinitely extended and remain youthful and energetic.
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| TECHNICAL REQUIREMENTS AND CHARACTERISTICS OF EQUIPMENT | ||||
| Re:82 sets compact substation | ||||
| Item- No. |
Schedule of Technical Data | Unit | Required (at 3000 m |
Offered Data |
| System Data Requirements | ||||
| 1.05.10 | Stranded copper conductor for earthing | |||
| Manufacturer | - | |||
| Material | - | copper | ||
| Cross-section | mm2 | >50 | ||
| Length | m | >40 | ||
| 1.05.11 | Earthing rods | |||
| Manufacturer | - | |||
| Type | - | |||
| Materia! | - | |||
| Length | m | |||
| Sections per rod | pcs | |||
| 1.6 | Compact Substations (Option 1) | |||
| Manufacturer | - | fengyuan | ||
| Type | - | OutDoor | ||
| Overall protection class for complete substation | - | IP 44 | IP 44 | |
| Material of enclosure | - | GI | ||
| Overall dimensions (W x L x H) | ||||
| for S/S with 1x50 kVA transformer | mm/mm/mm | 3000x1850x2150 | ||
| ■ for S/S with 1x100 kVA transformer | mm/mm/mm | 3000x1850x2150 | ||
| for S/S with 1x160 kVA transformer | mm/mm/mm | 3000x1850x2150 | ||
| • for S/S with 1x250 kVA transformer | mm/mm/mm | 3000x1850x2150 | ||
| Overall weight | ||||
| ■ for S/S with 1x50 kVA transformer | kg | 1000kg. | ||
| ■ for S/S with 1x100 kVA transformer | kg | 1000kg. | ||
| ■ for S/S with 1x160 kVA transformer | kg | 1000kg. | ||
| ■ for S/S with 1x250 kVA transformer | kg | 1000kg. | ||
| 1.6.1 | 20 kV Switchgear equipment | |||
| Manufacturer | - | Chnt / Equivalent | ||
| Type | - | Indoor RMU | ||
| Rated voltage | kV | 20 | 20 | |
| Maximum operating voltage | kV | 24 | 24 | |
| Rated current | A | 400 | 400 | |
| Rated short time current | kA | 16 | 16 | |
| Rated power frequency withstand voltage | kV | 50 | 50 | |
| Rated impulse withstand voltage (peak value) | k-^peak | 125 | 125 | |
| Insulating medium | SF6/air | SF6/air | ||
| Protection class | lP4x | lP4x | ||
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