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8 Maintenance

Maschinenfabrik Reinhausen GmbH 2018

41

1800059/09 EN

RS

8 Maintenance

DANGER

Electric shock!

Working on the transformer when the transformer is energized can lead to
death or serious injuries.

► Switch off transformer on high and low-voltage side.

► Lock transformer to prevent unintentional restart.

► Ensure that everything is de-energized.

► Visibly connect all transformer terminals to ground (grounding leads,

grounding disconnectors) and short circuit them.

► Cover or cordon off adjacent energized parts.

DANGER

Electric shock!

Working on the on-load tap-changer when on-load tap-changer components
are energized can lead to death or serious injuries.

► De-energize all auxiliary circuits, such as the tap-change supervisory de-

vice, pressure relief device, pressure monitoring device.

► Make sure that everything is de-energized.

WARNING

Danger of explosion!

Explosive gases in the oil compartment of the on-load tap-changer, trans-
former, pipework system, oil conservator and at the dehydrating breather
opening can deflagrate or explode and result in severe injury or death!

► Ensure that there are no ignition sources such as naked flame, hot sur-

faces or sparks (e.g. caused by the build-up of static charge) in the trans-
former's immediate surroundings and that none occur.

► Do not operate any electrical devices (e.g. risk of sparks from impact

wrench).

► Only use conductive and grounded hoses, pipes, and pump equipment

that are approved for flammable liquids.

NOTICE

Damage to motor-drive unit!

Damage to the motor-drive unit due to condensate in protective housing of
motor-drive unit.

► Always keep protective housing of the motor-drive unit tightly closed.

► In the event of operation interruptions of more than 2 weeks, connect and

operate the anti-condensation heater in the motor-drive unit. If this is not
possible, e.g. during transportation, place a sufficient amount of desiccant
in the protective housing.

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Содержание RS 2001

Страница 1: ...Protective relay RS Operating instructions 1800059 09 EN ...

Страница 2: ... for compensation All rights reserved in the event of the granting of patents utility models or designs The product may have been altered since this document was published We reserve the right to change the technical data design and scope of supply Generally the information provided and agreements made when processing the individual quotations and orders are binding The original operating instruct...

Страница 3: ...ty instructions 9 2 3 Personnel qualification 11 2 4 Personal protective equipment 12 2 5 Drying transformer 13 2 5 1 Drying transformer in furnace 13 2 5 2 Drying the transformer in the transformer tank 14 3 Product description 15 3 1 Scope of delivery 15 3 2 Function description 15 3 3 Design versions 16 3 4 Nameplate 18 3 5 Safety markings 18 4 Packaging transport and storage 19 4 1 Packaging 1...

Страница 4: ...ective relay RS 2001 2001 V 2001 H 2001 E 2001 5 2001 R 2001 T 2003 36 5 2 2 Checking protective relay RS 2004 37 6 Commissioning 38 7 Operation 39 7 1 Tripping the protective relay and re commissioning the transformer 39 7 1 1 Flap valve in OPERATION position 39 7 1 2 Flap valve in OFF position 40 7 1 3 Re commissioning the transformer 40 8 Maintenance 41 8 1 Inspection 42 9 Disposal 43 10 Techni...

Страница 5: ... 2001 R extra inspection window RS 2003 design for Canada RS 2004 design for Canada with automatic reset 1 2 Manufacturer The product is manufactured by Maschinenfabrik Reinhausen GmbH Falkensteinstraße 8 93059 Regensburg Germany Tel 49 9 41 40 90 0 Fax 49 9 41 40 90 7001 E mail sales reinhausen com Further information on the product and copies of this technical file are avail able from this addre...

Страница 6: ... all times 1 6 Notation conventions This section contains an overview of the symbols and textual emphasis used 1 6 1 Hazard communication system Warnings in this technical file are displayed as follows 1 6 1 1 Warning relating to section Warnings relating to sections refer to entire chapters or sections sub sec tions or several paragraphs within this technical file Warnings relating to sections us...

Страница 7: ...ous situation which if not avoided could result in minor or moderate injury NOTICE Indicates measures to be taken to prevent damage to property Table 1 Signal words in warning notices Pictograms warn of dangers Pictogram Definition Warning of a danger point Warning of dangerous electrical voltage Warning of combustible substances Warning of danger of tipping Warning of danger of crushing Table 2 P...

Страница 8: ...ctions which consist of only a single process step are structured as fol lows Aim of action ü Requirements optional Step 1 of 1 ð Result of step optional ð Result of action optional Multi step instructions Instructions which consist of several process steps are structured as follows Aim of action ü Requirements optional 1 Step 1 ð Result of step optional 2 Step 2 ð Result of step optional ð Result...

Страница 9: ...technical file as well as the warning notices in this technical file and attached to the product then the product does not present any danger to people property or the environment This applies throughout service life of the product from delivery to installa tion and operation through to disassembly and disposal The following is considered appropriate use Use the product only with the on load tap c...

Страница 10: ...n the relevant coun try Protection against electric shock If the terminal box cover of the protective relay hangs from the wire on the side of the enclosure this can lead to damage to the wires This poses a danger to life and limb Always remove the terminal box cover with wire from the protective relay for any work which involves opening the protective relay Remove the slotted head screw for poten...

Страница 11: ...by Maschinenfabrik Reinhausen GmbH can lead to personal injuries damage to the product and product malfunctions Only use conductive and grounded hoses pipes and pump equipment that are approved for flammable liquids Only use lubricants and auxiliary materials approved by the manufacturer Contact Maschinenfabrik Reinhausen GmbH Modifications and conversions Unauthorized or inappropriate changes to ...

Страница 12: ...ly under the guidance and supervision of an electrically skilled person Operator The operator uses and operates the product in line with this technical file The operating company provides the operator with instruction and training on the specific tasks and the associated potential dangers arising from im proper handling Technical Service We strongly recommend having maintenance repairs and retrofi...

Страница 13: ...p ping on slippery surfaces Special personal protective equipment for particular environments Safety glasses To protect the eyes from flying parts and splash ing liquids Visor To protect the face from flying parts and splash ing liquids or other dangerous substances Hard hat To protect from falling and flying parts and mate rials Hearing protection To protect from hearing damage Protective gloves ...

Страница 14: ...mer If the protective relay is dried in a furnace this may cause damage to the protective relay and restrict its correct function Do not dry protective relay in a furnace 2 5 2 Drying the transformer in the transformer tank If drying takes place in the transformer tank the protective relay can remain fitted during the drying process ...

Страница 15: ... a fault within the on load tap changer oil compartment It is tripped when the speci fied speed of flow from the on load tap changer head to the oil conservator is exceeded due to a fault The flowing insulating fluid actuates the flap valve which tips over into position OFF The contact in the dry reed magnetic switch is thereby actuated the circuit breakers are tripped and the trans former is de e...

Страница 16: ...9 09 EN RS 3 3 Design versions Front view Figure 1 Protective relay RS 2001 1 Inspection window 2 Pressure equalization element Rear view Figure 2 Protective relay RS 2001 1 Dummy plug 2 Nameplate The protective relay RS 2001 R has an extra inspection window on the rear ...

Страница 17: ...ead screw for potential tie in 5 OPERATION reset test button 6 Slotted head screw for protective cover 7 OFF test tripping test button 8 Cable gland 9 Protective cover 10 Dummy plug 11 Connection terminal 12 Pressure equalization element 13 Cylinder head screw for protective conductor connection The protective relays RS 2003 and RS 2004 have a 1 2 14NPT adapter in place of the cable gland ...

Страница 18: ... is on the back of the protective relay Figure 4 Nameplate 3 5 Safety markings The following safety markings in accordance with DIN EN 60255 27 are used on the product Figure 5 Overview of safety markings 1 Protective conductor connection 2 Notice danger of electric shock 3 Notice observe the documentation ...

Страница 19: ...cked crates Stacking the crates incorrectly can lead to damage to the packaged goods The outer marking on the packaging states if for example the on load tap changer or selector has been packed upright Never stack these crates General rule Do not stack crates above a height of 1 5 m For other crates Only stack up to 2 equally sized crates on top of one an other The packaging is suitable to ensure ...

Страница 20: ...llet secure it sufficiently Only trained and authorized persons may select the sling gear and se cure the load Do not walk under the hanging load Use means of transport and lifting gear with a sufficient carrying capacity in accordance with the weight stated on the delivery slip In addition to oscillation stress jolts must also be expected during trans portation In order to prevent possible damage...

Страница 21: ...ission the packaged goods Either re dry the dried packaged goods as per the operating instructions or contact the manu facturer to agree on how to proceed Failure to do so may result in dam age to the packaged goods Identify the damaged parts Hidden damage When damages are not determined until unpacking after receipt of the ship ment hidden damage proceed as follows Make the party responsible for ...

Страница 22: ...ose its sealing function If the product is installed more than 6 months after delivery suitable mea sures must be taken without delay The following measures can be used Correctly regenerate the drying agent and restore the sealed packaging Unpack the packed goods and store in a suitable storage space well ven tilated as dust free as possible humidity 50 where possible 4 4 Unpacking shipments and c...

Страница 23: ...ts with the protective relay attached and connected 5 1 1 Electrical protection NOTICE Damage to the connection cable Damage to the connection cable due to incorrect connection When routing the cable observe the manufacturer specifications Avoid impermissibly tight bending radii and kinking You may only connect the protective relay to circuits with an external over current protection device and an...

Страница 24: ...ipping circuit supply line to the circuit breaker coil must remain guaranteed at all times even in the event of the isolating device tripping 5 1 2 Checking function of protective relay Check the function of the protective relay before installing it in piping be tween on load tap changer head and oil conservator The associated contact positions for checking electrical continuity are shown in the d...

Страница 25: ...the termi nal box cover with wire Figure 7 Terminal box cover NOTICE Damage to protective relay Damage to protective relay resulting from improper operation Never press both test buttons at the same time 3 Press OFF test button ð Flap valve is inclined Line marker appears in the middle of the inspec tion window Figure 8 OFF position ...

Страница 26: ...ausen GmbH 2018 26 1800059 09 EN RS 4 Press OPERATION test button ð Flap valve is vertical Figure 9 OPERATION position 5 Position the wire for the terminal box cover and affix using the slotted head screw Figure 10 Terminal box cover ...

Страница 27: ...rotective relay ensure that there are no foreign bodies in the piping or in the oil conservator 2 Install protective relay such that it can be easily accessed for subsequent maintenance work 3 Install protective relay with good support and free from vibrations 4 The test buttons must be at the top 5 The pipes from the protective relay to the oil conservator must be routed with an inclination of at...

Страница 28: ...nenfabrik Reinhausen GmbH 2018 28 1800059 09 EN RS 7 The magnetic field strength bushings busbars etc must be 20 kA m Higher field strengths have a negative effect on the function of the protec tive relay Figure 12 Pipe ...

Страница 29: ...inhausen GmbH 2018 29 1800059 09 EN RS 8 The reference arrow on the terminal box cover must point toward the on load tap changer s oil conservator Figure 13 Reference arrow pointing towards the on load tap changer s oil conservator ...

Страница 30: ...30 1800059 09 EN RS 9 Install the protective relay horizontally in the pipe between on load tap changer head and oil conservator as near as possible to the on load tap changer head Figure 14 Protective relay horizontal and with test button at the top ...

Страница 31: ...her NC or NO contacts Other contact combinations can be supplied as special versions and are shown in the dimensional draw ing provided WARNING Risk of death or severe injury Risk of death or severe injury due to improper electrical connection of the protective relay Loop the protective relay into the tripping circuit of the circuit breakers of the transformer to be protected so that the transform...

Страница 32: ...0059 09 EN RS 1 Insert cable gland RS 2001 2001 V 2001 H 2001 E 2001 5 2001 R or adapter RS 2003 and RS 2004 in the tapped hole with the most favor able position Figure 16 Tapped hole 2 Seal open tapped hole with dummy plug Figure 17 Sealed with dummy plug ...

Страница 33: ...nal box cover and lift off the terminal box cover Figure 18 Terminal box cover 4 Take off the slotted head screw for potential tie in and remove the termi nal box cover with wire Figure 19 Terminal box cover 5 Remove screw for the protective cover and take off the protective cover Figure 20 Protective cover ...

Страница 34: ... through cable gland and into protective relay Ensure that the cable gland is well connected and sealed Figure 21 Cable bushing 7 Connect the electric cables to the connection terminals in accordance with the connection diagram on the dimensional drawing Figure 22 Electrical cables ...

Страница 35: ...nenfabrik Reinhausen GmbH 2018 35 1800059 09 EN RS 8 Connect protective conductor to cylinder head screw Figure 23 Protective conductor 9 Insert the protective cover and secure using the screw Figure 24 Protective cover ...

Страница 36: ...otective relay 5 2 1 Checking protective relay RS 2001 2001 V 2001 H 2001 E 2001 5 2001 R 2001 T 2003 ü Check that the protective relay is functioning correctly before commission ing the transformer 1 Ground the transformer on the high voltage side and low voltage side En sure that the grounding for work connection on the transformer is not re moved during testing 2 Ensure that the transformer rem...

Страница 37: ...d on all sides 12 Press OFF test button 13 Ensure that the transformer s circuit breaker is open ð Active protection test 14 Press OPERATION test button to reset the protective relay 15 Position the wire for the terminal box cover and affix using the slotted head screw 16 Attach the terminal box cover and secure with screws 5 2 2 Checking protective relay RS 2004 ü Check that the protective relay ...

Страница 38: ...38 1800059 09 EN RS 6 Commissioning Once you have checked that the protective device is working correctly you can continue by commissioning the transformer To do so follow the descrip tion provided in the operating instructions for the on load tap changer ...

Страница 39: ...nsformer are insufficiently tested Be sure to contact Maschinenfabrik Reinhausen to check on load tap changer and transformer if the protective relay has tripped Only use the equipment again when you are sure there is no damage to the on load tap changer or transformer When the circuit breakers have been tripped by the protective relay proceed as follows 1 Establish time of tripping 2 Determine op...

Страница 40: ...usen of the following ð Serial number of protective relay and on load tap changer ð What was the load of the transformer at the instant of tripping ð Was the on load tap changer moved immediately before or during trip ping ð Did any other protective devices of the transformer respond at the in stant of tripping ð Were switching operations in the network being carried out at the in stant of trippin...

Страница 41: ...explosion Explosive gases in the oil compartment of the on load tap changer trans former pipework system oil conservator and at the dehydrating breather opening can deflagrate or explode and result in severe injury or death Ensure that there are no ignition sources such as naked flame hot sur faces or sparks e g caused by the build up of static charge in the trans former s immediate surroundings a...

Страница 42: ...enfabrik Reinhausen GmbH 2018 42 1800059 09 EN RS 8 1 Inspection Protective relay monitoring is limited to a function test Interval Action Annually Check that the protective relay functions correctly Table 4 Inspection plan ...

Страница 43: ...8 43 1800059 09 EN RS 9 Disposal For disposal observe the national requirements applicable in the country of use If you have any questions about disassembly and disposal please contact Maschinenfabrik Reinhausen GmbH s Technical Service department ...

Страница 44: ...dimensional drawing supplied Other contact combinations are available as a special version Electrical data for normally closed NC dry reed magnetic switch Electrical data DC switching capacity 1 2 W 200 W AC switching capacity 50 Hz 1 2 VA 400 VA Switching voltage AC DC 24 V 250 V Switched current AC DC 4 8 mA 2 A Table 6 Electrical data Switching capacity switching load on an off Minimum switched...

Страница 45: ...witching capacity switching load on an off Minimum switched current AC DC low est voltage 50 mA at 24 V Minimum switched current AC DC high est voltage 4 8 mA at 250 V Maximum switched current DC highest current 2 A at 125 V with L R 40 ms Maximum switched current DC highest voltage 1 A at 250 V with L R 40 ms Maximum switched current AC highest current 2 A at 125 V with cos φ 0 6 Maximum switched...

Страница 46: ...ective relay Maschinenfabrik Reinhausen GmbH 2018 46 1800059 09 EN RS Ambient conditions Ambient temperature Ta 40 C 50 C Oil temperature 130 C Air pressure Corresponds to 0 m 4 000 m above sea level Table 12 Ambient conditions ...

Страница 47: ... an off Minimum switched current AC DC low est voltage 50 mA at 24 V Minimum switched current AC DC high est voltage 4 8 mA at 250 V Maximum switched current DC highest current 1 0 A at 150 V with L R 40 ms Maximum switched current DC highest voltage 0 6 A at 250 V with L R 40 ms Maximum switched current AC highest current 1 A at 200 V with cos φ 0 6 Maximum switched current AC highest voltage 0 8...

Страница 48: ... These can be designed as normally open NO or normally closed NC contacts and are electrically isolated see dimensional drawing supplied Electrical data for normally open NO and normally closed NC dry reed magnetic switch 10 3 Tests Electrical safety IEC 61010 1 Safety requirements for electrical measurement and con trol and regulation equipment and laboratory instruments Overvoltage category III ...

Страница 49: ...The International Electrotechnical Commission IEC for short is involved in the preparation and publication of international standards for electri cal electronic and related technologies IP Ingress protection NC Normally Closed contact NO Normally Open contact NPT National Pipe Thread US thread standard ...

Страница 50: ......

Страница 51: ......

Страница 52: ...einhausen GmbH Falkensteinstrasse 8 93059 Regensburg 49 0 941 4090 0 49 0 941 4090 7001 sales reinhausen com www reinhausen com 1800059 09 EN RS F0015207 06 18 Maschinenfabrik Reinhausen GmbH 2018 THE POWER BEHIND POWER ...

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