Huawei Smartkits V100R002C00 Скачать руководство пользователя страница 7

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No.

Materi

picture

Remarks

support

rod

Quantity: 8 sets
Length: 35 cm
Nut: M12*2
Flat washer: M8*2

ratchet

wrench

Quantity: 2 sets
Socket: M18*2

spanne

Quantity: 2
Size: M18

Adjusta

-ble

wrench

Quantity: 1
Hole opening range: > 30 mm

Hold

hoop

Quantity: 8
Size: matching inner diameter

25 mm casing

raw

materi

al belt

Obtained locally (not available

by air)

Smartkits

Guide to Transformer Low Voltage Bushing

Replacement (No Handhole Replacement)

2 Tool Introduction

Issue 01 (2021-11-22)

Ltd.

Содержание Smartkits V100R002C00

Страница 1: ...Smartkits V100R002C00 Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement Issue 01 Date 2021 11 22 HUAWEI DIGITAL POWER TECHNOLOGIES CO LTD ...

Страница 2: ... features described in this document may not be within the purchase scope or the usage scope Unless otherwise specified in the contract all statements information and recommendations in this document are provided AS IS without warranties guarantees or representations of any kind either express or implied The information in this document is subject to change without notice Every effort has been mad...

Страница 3: ...power supply of STS 7 3 2 Replacement Procedure 7 3 3 Restore the power supply of STS 36 3 4 Observe the STS repair 36 Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement Contents Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd ii ...

Страница 4: ... low voltage bushing or sealing gasket is damaged it may cause discharge or oil leakage and need to replace the lowlow voltage bushing or gasket Low voltage bushing has the following 2 structures Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 1 Overview Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 1 ...

Страница 5: ...bag Quantity 1 Capacity 2000L Inner diameter of matching tubing 25 mm Oil filling port position middle of the top Valves with Flange sealing cap with 2 oil pump Quantity 1 Voltage 12 V Power 500 W Inner diameter of matching tubing 25 mm Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 2 Tool Introduction Issue 01 2021 11 22 Copyright Huawei Digital Power Techn...

Страница 6: ... diameter 25 mm Length 1 2 m x 1 Length 2 4 m x 1 6 Flange Quantity 2 Inner diameter of matching tube 25 mm Outer diameter 1 matching top drain valve Outer diameter 2 matching bottom drain valve Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 2 Tool Introduction Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 3 ...

Страница 7: ...ze M18 10 Adjusta ble wrench Quantity 1 Hole opening range 30 mm 11 Hold hoop Quantity 8 Size matching inner diameter 25 mm casing 12 raw materi al belt Obtained locally not available by air Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 2 Tool Introduction Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 4 ...

Страница 8: ... 15 Battery Obtained locally not available by air car batteries are available 16 cleanin g cloth Obtained locally consumables 17 buckets Locally obtained Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 2 Tool Introduction Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 5 ...

Страница 9: ...rks 18 Low voltage bushin g Quantity on demand Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 2 Tool Introduction Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 6 ...

Страница 10: ... 3 1 Cut off the power supply of STS Step 1 Switch off G2 cabinet circuit breaker switch off G2 cabinet isolation switch and switch on G2 cabinet earthing switch Step 2 Switch off the ACB of low voltage cabinets LVA and LVB End 3 2 Replacement Procedure Step 1 Connect the oil storage bag oil pump and flange with oil pipe and fix the oil pipe with throat hoop Smartkits Guide to Transformer Low Volt...

Страница 11: ...he bottom of transformer Step 3 Connect oil pump and battery Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 8 ...

Страница 12: ...en the oil pump is started keep the engine running Step 4 Remove the dehydrating breather Step 5 Remove the fixing clip of the breathing tube Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 9 ...

Страница 13: ... exhausting plug at the top of the oil conservator and cover it with a cleaning cloth Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 10 ...

Страница 14: ... conservator is exhausted the contact surface of transformer oil and air can be seen through the gas relay observation window 3 When the first oil storage bag is full of oil stop oil draining close the transformer oil drain valve and close the oil storage bag valve Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Issue 01 2021 11 22 Cop...

Страница 15: ...lose the gas relay valve Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 12 ...

Страница 16: ...Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 13 ...

Страница 17: ...cabinet Step 12 Remove the connection between the faulty bushing and the soft copper bar Step 13 Remove the box cover bolts and collect the bolts in a box or jar to avoid loss Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 14 ...

Страница 18: ...g screws at the four corners of the box cover Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 15 ...

Страница 19: ...e screw from the top 4 Install the other 3 lifting guides in the same way 5 Check whether the cables hinder the lifting of the box cover to prevent cables from being damaged by the lifting of the box cover Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 16 ...

Страница 20: ...ift box cover approx 3 cm Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 17 ...

Страница 21: ... corner is raised up 1cm change to the other corner and evenly lift the box cover Uneven lifting may cause cover to deviate Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 18 ...

Страница 22: ...offset of the case cover and prevent the case cover from falling over Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 19 ...

Страница 23: ...thread pass out from the bottom screw hole 3 Install another nut at the bottom of the screw and tighten the two nuts 4 Install another limiting screw in the same way on the short side of the other box cover Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 20 ...

Страница 24: ...height the top of the oil conservator contacts the top of the container Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 21 ...

Страница 25: ...dirt Step 19 Remove the soft connection copper bar from the faulty bushing Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 22 ...

Страница 26: ...ushing and bushing fastener Check the cause of the fault and take photos Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 23 ...

Страница 27: ... low voltage bushing with a new one Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 24 ...

Страница 28: ...ng gasket 3 Install the fixing steel plate and tighten the bolts Tighten the bolts gradually in the diagonal sequence to avoid directly locking a single bolt at a time Installation torque 45 Nm Step 22 Lower the lid height to 3 cm Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Issue 01 2021 11 22 Copyright Huawei Digital Power Technol...

Страница 29: ... the height of the box cover evenly to the lowest point observe all screw holes and see if the screw holes interfere with the sealing gasket NOTE If the gasket is visible from the screw hole there is interference If it interferes lift the box cover again and arrange the sealing gasket Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Iss...

Страница 30: ...bolts on the box cover and the area of the box cover is large when tighten part of the bolts the deformation of the box cover may cause the loosening of other bolts that have been tightened Therefore all bolts shall be tightened for no less than 3 times in sequence Installation torque 45 Nm Step 27 Open gas relay valve Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Repl...

Страница 31: ... the oil drain valve at the bottom of the transformer open the oil storage bag valve start the oil pump and start the oil filling Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 28 ...

Страница 32: ...pump is started keep the engine running 1 During oil injection if the oil pump temperature is too high shut down and pause for cooling for a period of time When shut down close the oil storage bag valve synchronously 2 In the late stage of oil injection fold the oil storage bag to allow the oil to flow to the flange 3 When the oil filling is nearly completed lift the capsule and try to fill the oi...

Страница 33: ...Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 30 ...

Страница 34: ...g 2 Open the cover of the air exhausting plug 3 Loosen the air exhausting plug bolt and start to deflate 4 When oil leaks out of the vent plug tighten the bolts finish deflating and then wipe the leaked oil with cleaning cloth and cover it 5 Deflate all radiator in the same manners 6 After the completion of the deflation the transformer oil level will decrease relative to that before the deflation...

Страница 35: ...32 Gas relay deflates Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 32 ...

Страница 36: ...Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 33 ...

Страница 37: ... release Step 33 Install the connection between the bushing and the soft copper bar NOTE Installation torque 45 Nm Step 34 Install the connecting flange between the transformer and the low voltage cabinet Step 35 Install the cover plate of the bus compartment of the low voltage cabinet Step 36 The capsule is inflated Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replac...

Страница 38: ...Smartkits Guide to Transformer Low Voltage Bushing Replacement No Handhole Replacement 3 Replacement Procedure Issue 01 2021 11 22 Copyright Huawei Digital Power Technologies Co Ltd 35 ...

Страница 39: ...38 Demolition and preservation of equipment End NOTE The equipment can be used for many times and shall be properly stored The oil outlets of oil pump oil pipe oil storage bag and others shall be wrapped and sealed with clean plastic bags to prevent foreign matter entering The oil reservoir is covered to keep the interior sealed additional cleaning is not needed 3 3 Restore the power supply of STS...

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