Page 1
Eaton Electrical Solutions & Services: tel: +31 74 246 68 88 Installation, connection, operation, checking, commissioning, decommissioning and maintenance of medium-voltage Magnefix MF switchgear should only be carried out by suitably qualified personnel.
Page 2
Administrative data Issue number: G01 05 Date of issue: 10-05-2019 994.543 G01 05...
Magnefix MF 15 kV CONTENTS INTRODUCTION ..................7 General system description ..................... 7 Using the manual ........................7 1.2.1 Target group ..........................7 1.2.2 Structure of this manual ......................7 Safety instructions ........................8 1.3.1 General regulations ........................8 1.3.2 Safety of the operating area .......................
Page 4
Magnefix MF 15 kV 3.3.6 Fitting the cross coupling ......................24 3.3.7 Fixing the second frame leg ...................... 24 3.3.8 Fitting the earth strip ........................ 24 3.3.9 Positioning the switchgear on the frame ..................25 3.3.10 Check ............................25 3.3.11 Spare panels ...........................
Page 5
Magnefix MF 15 kV 3.11 Connection of plastic-insulated cables ................132 3.11.1 Connection of plastic insulated Cu cables up to 3 X 70 mm , universal clamps ......132 3.11.2 Plastic-insulated cables with copper cores ranging from 3 x 95 mm...
Page 6
Magnefix MF 15 kV SYSTEM INSPECTION, MAINTENANCE AND REPAIR ....174 Logbook ..........................174 Inspection and maintenance ....................174 6.2.1 Types of maintenance ......................174 6.2.2 Frequency ..........................174 6.2.3 Tools ............................. 175 Cleaning ..........................175 6.3.1 Switchgear has been made dead .................... 175 Inspection and maintenance schedule ................
See Chapter 8 - Glossary for an explanation of the before the system can be commissioned. terminology. They need to be completed in conjunction with Eaton. Chapter 5.2 deals with decommissioning the system. It also 1.2.2 Structure of this manual includes recommendations for the safe disposal of the The manual contains 9 chapters.
Magnefix MF 15 kV 1.3 Safety instructions 1.3.2 Safety of the operating area The installation and the operating area should comply with all local safety regulations. Carefully read this user manual before you commission the switchgear. Make sure that you...
Type plate bystanders. A complete type plate is made up of one main plate, with auxiliary plates if necessary. The main type plate is headed with the Eaton logo and address. AUTION Danger of damage to equipment. Important note for clarification.
Page 10
Magnefix MF 15 kV typeplate Variable Description Unit system rel. release serial.no. Serial number year of constr. year of construction w.o.no. work order number rated voltage rated frequency rated normal current rated normal current r T-off switch/circuitbreaker rated short time withstand voltage...
the busbar connecting panel; the busbar connection for a cable; the metering panel (provided with voltage and current transformers); the connecting panel (for example, for connection to an Eaton high-voltage Capitole or SVS busbar system); 994.543 G01 05...
Magnefix MF 15 kV 2.1.5 The fuse panel Squeeze the locking pins on the switching handle to The fuse panel has a three-phase cable connection point disengage them, then push the spring handle hard towards and three fuse holders with removable caps. A mechanical installation.
Actions not described at all should only be executed in 2.1.9 Earthing consultation with an Eaton specialist. The latter’s Magnefix switchgear can be earthed via the cable and the instructions should be strictly followed. transformer. It is not possible to earth the busbar system.
2.3 Safety measures Working on a live or partly live installation: For safety reasons, Eaton advises you to never work The switchgear may be provided with the following safety on installations that are fully or partially live. This is in...
Magnefix MF 15 kV 2.4 General technical data This paragraph only contains general technical data. For details on your own installation, see the information package supplied with your installation and to which this manual belongs. 2.4.1 Electrical data Rated values:...
Magnefix MF 15 kV 2.4.2 Dimensions and weights Dimensions - upright version Panel name width weight Cable panel (including switch caps) 105 mm 19 kg Busbar connection 105 mm 7.5 kg Connecting panel 105 mm 4.5 kg Busbar connecting panel...
Page 17
Magnefix MF 15 kV Dimensions - wall-mounted version Panel name width weight Cable panel (including switch caps) 105 mm 19 kg Busbar connection 105 mm 7.5 kg Connecting panel 105 mm 4.5 kg Busbar connecting panel 210 mm 18 kg...
Magnefix MF 15 kV 2.4.3 Heat, radiation, noise and gases Heat Under normal conditions the heat generated in full-load service will lead to the maximum temperature of the outer surface not exceeding body temperature. Radiation Radiation is well below the safety standard level.
Eaton can undertake the transportation of the Magnefix switchgear. Detailed instructions fall outside the scope of Climate this manual. Contact Eaton, if required. You will find the In accordance with IEC 62271-1 par. 2.1.1, the climate in address and telephone number on the title page of this the operating area should comply with the following: manual.
Magnefix MF 15 kV 3.2.2 Ventilation Magnefix MF switchgear can operate without ventilation. Air circulating around the switchgear may carry dust liable to deposit on the installation. Take the following precautions against unwanted air circulation: General To avoid draughts make sure the doors of the operating area are correctly closed.
Magnefix MF 15 kV 3.2.4 Floor General Seal cable entries as perfectly as possible. Cable trench Fill the cable trench with gritty sand. Cover the sand with a suitable material (for example, polyurethane foam which has a closed cellular structure).
Magnefix MF 15 kV 3.3 Assembling the upright frame AUTION Fit a toothed washer below each screw or bolt head and nut. This is to ensure a perfect earth connection. 3.3.1 Parts list for upright frame Part Qty. Designation Frame leg...
Magnefix MF 15 kV 3.3.3 Fixing the front C-section Fit section (b) to the C-section (c) using the mounting materials. Fix the adjustable distance plate (d) to the C-section (c) using the mounting materials. 1, 2 3.3.4 Fixing the C-sections to the frame Fix the C-sections (c) to the inside of the frame leg (a).
Magnefix MF 15 kV 3.3.6 Fitting the cross coupling Fit the cross coupling (g) to the rear of the frame leg (a) using the mounting material. 3.3.7 Fixing the second frame leg Fix the second frame leg (a) using the mounting material.
Magnefix MF 15 kV 3.3.9 Positioning the switchgear on the frame Unpack the switchgear. Remove any switch and fuse caps, if installed. Install dust caps.onv the fixed part. EMARK Be careful not to get dust or dirt in the switch and fuse caps.
Magnefix MF 15 kV 3.4 Assembling the wall frame 3.4.1 Parts list for wall frame Part Qty. Designation Vertical post Profile for cable clamps C-section Adjustable distance plate for the cable clamps Earth bar Braces Branch earth bar Material for fixing the switchgear to...
Magnefix MF 15 kV 3.4.3 Fixing the front C-sections Fix the adjustable distance plates (d) to the C-sections (c). Fix the section (b) to the C-sections (c). 3.4.4 Fixing the C-sections to the frame Fix the C-sections (c) to the vertical posts (a).
Magnefix MF 15 kV 3.4.6 Preparing the fixed section Remove the switch caps and fuse caps from the fixed section. EMARK Take action to prevent dust and dirt from entering the switch and fuse caps. Lay the fixed section on blocks of wood to avoid damage to the interlock.
Magnefix MF 15 kV 3.4.9 Fixing the earth strip Fix the earth strip (l) to either side of the frame (a) using the mounting materials. 3.4.10 Check Check the connections made. This is essential to ensure correct earthing. 3.4.11 Spare panels If the switchgear contains spare panels, provide them with covers and unfilled cable boxes.
Eaton. As long as the work is carried out in strict accordance with the instructions, testing by Eaton after the work has been completed is not necessary. However, if desired, the added switchgear can be tested by Eaton. The extension is always to be tested prior to its being taken into operation.
To be able to carry out the work, special tools are required, i.e. a torque wrench and a special socket wrench. The special socket wrench can be ordered from Eaton, stating article No. 2052.115. The centerring is article No. 2080.480.
Magnefix MF 15 kV 3.6 Extension with a transformer panel 3.6.1 To a transformer panel on the right-hand side A transformer panel comprises a branch-circuit panel and a fuse panel. In case of an extension, both panels are mounted to the existing switchgear at the same time.
Page 34
Magnefix MF 15 kV Preparations Remove the plastic end caps (2) Support the installation with the wooden prop, which is placed as close as possible to the side to be extended. 1, 2 Disassembly (upright frame) ARNING The slotted tubes, sleeves and sealing plugs must not be reused.
Page 35
Magnefix MF 15 kV Disassembly (wall frame) Loosen the earth bar (1) from the right vertical post (2). Loosen the C sections (3) from the right vertical post (2). Hold the earth bar and the C sections in position using a temporary suspension device (e.g.
Page 36
Magnefix MF 15 kV Preparations for assembly AUTION Proceed in a tidy and accurate way. Dirty or incorrectly placed parts may provoke a disruptive breakdown. Place a high nut on each of the screw rods of the first, third and fifth orifice, viewed from the top down.
Page 37
Magnefix MF 15 kV Insert the 3 screw rods(249 mm) into the high nuts. Screw the 3 screw rods about 10 mm into the high nuts (finger-tightened). Carefully slip the 3 busbars (245 mm) on the screw rods. 6..8 Be sure to slip the busbars on the screw rods with their screwed-out part turned inside.
Page 38
Magnefix MF 15 kV Place the nut in the special wrench (ø 22) In order to facilitate the installation job, you may stick the locking ring to the nut using silicone grease. The bevelled end must face the nut. Place the nuts on the screw rods. The bevelled end must face the nut.
Page 39
Magnefix MF 15 kV Mounting the side plate (upright) Clean the side plate along with the frame leg and check for any corrosion. Temporarily place the side plate and frame leg in position and mark off the fixation holes in the floor.
Page 40
Magnefix MF 15 kV Mounting the side plate (hanging) Clean the side plate along with the vertical post and check for any corrosion. Re-place the side plate along with the vertical post. Feed the two hexagon head bolts (M8x160) with flat rings through the side plate.
Page 41
Magnefix MF 15 kV Finishing the frame installation (upright) Remake the cross bracing (4) at the right frame leg or vertical post Insert the extension strips for the earth bar (1) in the frame leg. Secure the extension strips for the earth bar (1) using a new slotted tube (2).
Magnefix MF 15 kV 3.6.2 To a transformer panel on the left-hand side A transformer panel comprises a branch-circuit panel and a fuse panel. In case of an extension, both panels are mounted to the existing switchgear, at the same time. A work drawing provides an overview.
Page 43
Magnefix MF 15 kV Preparations Remove the plastic end caps (2) Support the installation with the wooden prop, which is placed as close as possible to the side to be extended. 1, 2 Disassembly (upright frame) ARNING The slotted tubes, sleeves and sealing plugs must not be reused.
Page 44
Magnefix MF 15 kV Disassembly (wall frame) Loosen the earth bar (1) from the right vertical post (2). Loosen the C sections (3) from the right vertical post (2). Hold the earth bar and the C sections in position using a temporary suspension device (e.g.
Page 45
Magnefix MF 15 kV Preparations for assembly AUTION Proceed in a tidy and accurate way. Dirty or incorrectly placed parts may provoke a disruptive breakdown. Place a high nut on each of the screw rods of the first, third and fifth orifice, viewed from the top down.
Page 46
Magnefix MF 15 kV Carefully slip the 3 busbars (245 mm) on the screw rods. Be sure to slip the busbars on the screw rods with their screwed-out part turned inside. Installation of transformer panel Unpack the completely assembled transformer panel and remove any switch caps fitted.
Page 47
Magnefix MF 15 kV Place the nut in the special wrench (ø 22). In order to facilitate the installation job, you may stick the locking ring to the nut using silicone grease. The bevelled end must face the nut. Run the nuts up the screw rods.
Page 48
Magnefix MF 15 kV Mounting the side plate (upright) Clean the side plate along with the frame leg and check for any corrosion. Temporarily place the side plate and frame leg in position and mark off the fixation holes in the floor.
Page 49
Magnefix MF 15 kV Mounting the side plate (hanging) Clean the side plate along with the vertical post and check for any corrosion. Re-place the side plate along with the vertical post. Feed the two hexagon head bolts (M8x160) with flat rings through the side plate.
Page 50
Magnefix MF 15 kV Finishing the frame installation (upright) Remake the cross bracing (4) at the right frame leg or vertical post Insert the extension strips for the earth bar (1) in the frame leg. Secure the extension strips for the earth bar (1) using a new slotted tube (2).
Magnefix MF 15 kV 3.6.3 To a cable panel on the right-hand side A transformer panel comprises a branch-circuit panel and a fuse panel. In case of an extension, both panels are mounted to the existing switchgear, at the same time. A work drawing provides an overview.
Page 52
Magnefix MF 15 kV Preparations Remove the plastic end caps (2). Support the installation with the wooden prop, which is placed as close as possible to the side to be extended. 1, 2 Disassembly (upright frame) ARNING The slotted tubes, sleeves and sealing plugs must not be reused.
Page 53
Magnefix MF 15 kV Disassembly (wall frame) Loosen the earth bar (1) from the right vertical post (2). Loosen the C sections (3) from the right vertical post (2). Hold the earth bar and the C sections in position using a temporary suspension device (e.g.
Page 54
Magnefix MF 15 kV Preparations for assembly AUTION Proceed in a tidy and accurate way. Dirty or incorrectly placed parts may provoke a disruptive breakdown. Place high nuts on the screw rods. Use the special wrench (ø 22) to run up the high nuts, but not too tight.
Page 55
Magnefix MF 15 kV Be sure to slip the busbars on the screw rods with their screwed-out part turned inside. Installation of transformer panel Unpack the completely assembled transformer panel and remove any switch caps fitted. Check the new transformer panel for any damage and/or defects.
Page 56
Magnefix MF 15 kV Position the transformer panel; carefully slip it on the busbars, against the switchgear. Keep the transformer panel in place to prevent it from coming down. Place the nut in the special wrench (ø 22) In order to facilitate the installation job, you may stick the locking ring to the nut using silicone grease.
Page 57
Magnefix MF 15 kV EMARK Use a nylon thread for venting. 13 Push the end caps into the busbar orifices. Keep a nylon venting thread folded double between sleeve and cast resin. 14 Pull out the thread once the cap has been placed.
Page 58
Magnefix MF 15 kV Mounting the side plate (hanging) Clean the side plate along with the vertical post and check for any corrosion. Re-place the side plate along with the vertical post. Feed the two hexagon head bolts (M8x160) with flat rings through the side plate.
Page 59
Magnefix MF 15 kV Finishing the frame installation (upright) Remake the cross bracing (4) at the right frame leg or vertical post Insert the extension strips for the earth bar (1) in the frame leg. Secure the extension strips for the earth bar (1) using a new slotted tube (2).
Magnefix MF 15 kV 3.6.4 To a cable panel on the left-hand side A transformer panel comprises a branch-circuit panel and a fuse panel. In case of an extension, both panels are mounted to the existing switchgear, at the same time. A work drawing provides an overview.
Page 61
Magnefix MF 15 kV Preparations Remove the plastic end caps (2). Support the installation with the wooden prop, which is placed as close as possible to the side to be extended. 1, 2 Disassembly (upright frame) ARNING The slotted tube, sleeves and sealing plugs must not be reused.
Page 62
Magnefix MF 15 kV Disassembly (wall frame) ARNING The slotted tube, sleeves and sealing plugs must not be reused. In case of reuse, voltage sealing cannot be guaranteed and short-circuiting may be the result. Loosen the earth bar (1) from the right vertical post (2).
Page 63
Magnefix MF 15 kV Preparations for assembly AUTION Proceed in a tidy and accurate way. Dirty or incorrectly placed parts may provoke a disruptive breakdown. Place high nuts on the 3 screw rods. Use the special wrench (ø 22) to run up the high nuts, but not too tight.
Page 64
Magnefix MF 15 kV Carefully slip the 3 busbars (245 mm) on the screw rods. Be sure to slip the busbars on the screw rods with their screwed-out part turned inside. Rub down the 3 rubber sleeves with silicone grease all over.
Page 65
Magnefix MF 15 kV 11 Push the sealing plugs into the second, fourth and sixth orifice of the fuse panel, viewed from the top down. Keep a nylon venting thread folded double between sleeve and cast resin, when inserting the plugs.
Page 66
Magnefix MF 15 kV Place the nuts on the screw rods. Starting with the central nut, tighten the nuts using the torque wrench set to a torque of 10 Nm. 6, 7 Rub down the 6 rubber sleeves with silicone grease all over.
Page 67
Magnefix MF 15 kV Mounting the side plate (upright) Clean the side plate along with the frame leg and check for any corrosion. Temporarily place the side plate and frame leg in position and mark off the fixation holes in the floor.
Page 68
Magnefix MF 15 kV Mounting the side plate (hanging) Clean the side plate along with the vertical post and check for any corrosion. Re-place the side plate along with the vertical post. Feed the two hexagon head bolts (M8x160) with flat rings through the side plate.
Page 69
Magnefix MF 15 kV Finishing the frame installation (upright) Remake the cross bracing (4) at the right frame leg or vertical post Insert the extension strips for the earth bar (1) in the frame leg. Secure the extension strips for the earth bar (1) using a new slotted tube (2).
Magnefix MF 15 kV 3.7 Extension with a cable panel 3.7.1 To a transformer panel on the right-hand side General drawing for adding a cable panel to a transformer panel on the right-hand side Safety measures Make the entire switchgear dead.
Page 71
Magnefix MF 15 kV Preparations Remove the plastic end caps (2). Support the installation with the wooden prop, which is placed as close as possible to the side to be extended. 1, 2 Disassembly (upright frame) ARNING The slotted tubes, sleeves and sealing plugs must not be reused.
Page 72
Magnefix MF 15 kV Disassembly (wall frame) 11 Loosen the earth bar (1) from the right vertical post (2). Loosen the C sections (3) from the right vertical post (2). Hold the earth bar and the C sections in position using a temporary suspension device (e.g.
Page 73
Magnefix MF 15 kV Preparations for assembly AUTION Proceed in a tidy and accurate way. Dirty or incorrectly placed parts may provoke a disruptive breakdown. Place high nuts on the first, third and fifth orifice, viewed from the top down.
Page 74
Magnefix MF 15 kV EMARK Use a nylon thread for venting. Push the sealing plugs into the second, fourth and sixth orifice (viewed from the top down). Keep a nylon venting thread folded double between sleeve and cast resin. Pull out the thread once the plug has been inserted.
Page 75
Magnefix MF 15 kV Be sure to slip the busbars on the screw rods with their screwed-out part turned inside. Installation of cable panel Unpack the cable panel and remove any switch caps fitted. Check the cable panel for any damage and/or defects.
Page 76
Magnefix MF 15 kV Place the nuts on the screw rods. Starting with the central nut, tighten the nuts using the torque wrench set to a torque of 10 Nm. Rub down the 6 rubber sleeves all over. 10 Slip the greased sleeves on the plastic end caps.
Page 77
Magnefix MF 15 kV Mounting the side plate (upright) Clean the side plate along with the frame leg and check for any corrosion. Temporarily place the side plate and frame leg in position and mark off the fixation holes in the floor.
Page 78
Magnefix MF 15 kV Mounting the side plate (hanging) Clean the side plate along with the vertical post and check for any corrosion. Re-place the side plate along with the vertical post. Feed the two hexagon head bolts (M8x160) with flat rings through the side plate.
Page 79
Magnefix MF 15 kV Finishing the frame installation (upright) Remake the cross bracing (4) at the right frame leg or vertical post Insert the extension strips for the earth bar (1) in the frame leg. Secure the extension strips for the earth bar (1) using a new slotted tube (2).
Magnefix MF 15 kV 3.7.2 To a transformer panel on the left-hand side General drawing for adding a cable panel to a transformer panel on the left-hand side Safety measures Make the entire switchgear dead. Remove the switch and fuse caps from all the panels.
Page 81
Magnefix MF 15 kV Preparations Remove the plastic end caps (2). Support the installation with the wooden prop, which is placed as close as possible to the side to be extended. 1, 2 Disassembly (upright frame) ARNING The slotted tubes, sleeves and sealing plugs must not be reused.
Page 82
Magnefix MF 15 kV Disassembly (wall frame) Loosen the earth bar (1) from the right vertical post (2). Loosen the C sections (3) from the right vertical post (2). Hold the earth bar and the C sections in position using a temporary suspension device (e.g.
Page 83
Magnefix MF 15 kV Preparations for assembly AUTION Proceed in a tidy and accurate way. Dirty or incorrectly placed parts may provoke a disruptive breakdown. Place a high nut on each of the screw rods of the first, third and fifth orifice, viewed from the top down.
Page 84
Magnefix MF 15 kV Push the insulators into the busbar orifices of the branch-circuit panel (the first, third and fifth orifice, viewed from the top down). Carefully slip the 3 busbars (101 mm) on the screw rods. Be sure to slip the busbars on the screw rods with their screwed-out part turned inside.
Page 85
Magnefix MF 15 kV Installation of cable panel Unpack the cable panel and remove any switch caps fitted. Check the cable panel for damage and/or defects. Pay special attention to the contact faces. Place 2 nuts in the corresponding orifices on the side where the cable panel is arranged against the branch- circuit panel.
Page 86
Magnefix MF 15 kV Rub down the 3 rubber sleeves with silicone grease all over. 10 Slip the greased sleeves on the plastic end caps. 9, 10 Remark Use a nylon thread for venting. 11 Push the end caps into the busbar orifices.
Page 87
Magnefix MF 15 kV Mounting the side plate (upright) Clean the side plate along with the frame leg and check for any corrosion. Temporarily place the side plate and frame leg in position and mark off the fixation holes in the floor.
Page 88
Magnefix MF 15 kV Mounting the side plate (hanging) Clean the side plate along with the vertical post and check for any corrosion. Re-place the side plate along with the vertical post. Feed the two hexagon head bolts (M8x160) with flat rings through the side plate.
Page 89
Magnefix MF 15 kV Finishing the frame installation (upright) Remake the cross bracing (4) at the right frame leg or vertical post Insert the extension strips for the earth bar (1) in the frame leg. Secure the extension strips for the earth bar (1) using a new slotted tube (2).
Magnefix MF 15 kV 3.7.3 To a cable panel on the right-hand side General drawing for adding a cable panel to a cable panel on the right-hand side Safety measures Make the entire switchgear dead. Remove the switch and fuse caps from all the panels.
Page 91
Magnefix MF 15 kV Preparations Remove the plastic end caps (2). Support the installation with the wooden prop, which is placed as close as possible to the side to be extended. 1, 2 Disassembly (upright frame) ARNING The slotted tubes, sleeves and sealing plugs must not be reused.
Page 92
Magnefix MF 15 kV Disassembly (wall frame) Loosen the earth bar (1) from the right vertical post (2). Loosen the C sections (3) from the right vertical post (2). Hold the earth bar and the C sections in position using a temporary suspension device (e.g.
Page 93
Magnefix MF 15 kV Preparations for assembly AUTION Proceed in a tidy and accurate way. Dirty or incorrectly placed parts may provoke a disruptive breakdown. Place high nuts on the screw rods of the panels to be extended. Use the special wrench (ø 22) to run up the high nuts, but not too tight.
Page 94
Magnefix MF 15 kV Carefully slip the 3 busbars (101 mm) on the screw rods. Be sure to slip the busbars on the screw rods with their screwed-out part turned inside. Installation of cable panel Unpack the cable panel and remove any switch caps fitted.
Page 95
Magnefix MF 15 kV Position the cable panel; carefully slip it on the busbars, against the switchgear. Place the nut in the special wrench ( 22 including adjustmentring 36). In order to facilitate the installation job, you may stick the locking ring to the nut using silicone grease.
Page 96
Magnefix MF 15 kV EMARK Use a nylon thread for venting. 11 Push the end caps into the busbar orifices. Keep a nylon thread folded double between sleeve and cast resin. 12 Pull out the thread once the cap has been placed.
Page 97
Magnefix MF 15 kV Mounting the side plate (hanging) Clean the side plate along with the vertical post and check for any corrosion. Re-place the side plate along with the vertical post. Feed the two hexagon head bolts (M8x160) with flat rings through the side plate.
Page 98
Magnefix MF 15 kV Finishing the frame installation (upright) Remake the cross bracing (4) at the right frame leg or vertical post Insert the extension strips for the earth bar (1) in the frame leg. Secure the extension strips for the earth bar (1) using a new slotted tube (2).
Magnefix MF 15 kV 3.7.4 To a cable panel on the left-hand side General drawing for adding a cable panel to a cable panel on the left-hand Safety measures Make the entire switchgear dead. Remove the switch and fuse caps from all the panels.
Page 100
Magnefix MF 15 kV Preparations Remove the plastic end caps (2). Support the installation with the wooden prop, which is placed as close as possible to the side to be extended. 1, 2 Disassembly (upright frame) ARNING The slotted tubes, sleeves and sealing plugs must not be reused.
Page 101
Magnefix MF 15 kV Disassembly (wall frame) Loosen the earth bar (1) from the right vertical post (2). Loosen the C sections (3) from the right vertical post (2). Hold the earth bar and the C sections in position using a temporary suspension device (e.g.
Page 102
Magnefix MF 15 kV Preparations for assembly AUTION Proceed in a tidy and accurate way. Dirty or incorrectly placed parts may provoke a disruptive breakdown. Place high nuts on the screw rods of the panels to be extended. Use the special wrench (ø 22) to run up the high nuts,...
Page 103
Magnefix MF 15 kV Push the insulators into the busbar orifices of the cable panel to be installed. Carefully slip the 3 busbars (101 mm) on the screw rods. Be sure to slip the busbars on the screw rods with their screwed-out part turned inside.
Page 104
Magnefix MF 15 kV Position the cable panel; carefully slip it on the busbars, against the switchgear. Place the nut in the special wrench. In order to facilitate the installation job, you may stick the locking ring to the nut using silicone grease. The bevelled end must face the nut.
Page 105
Magnefix MF 15 kV Remark Use a nylon thread for venting. 11 Push the end caps into the busbar orifices. Keep a nylon venting thread folded double between sleeve and cast resin. 12 Pull out the thread once the cap has been placed.
Page 106
Magnefix MF 15 kV Mounting the side plate (hanging) Clean the side plate along with the vertical post and check for any corrosion. Re-place the side plate along with the vertical post. Feed the two hexagon head bolts (M8x160) with flat rings through the side plate.
Page 107
Magnefix MF 15 kV Finishing the frame installation (upright) Remake the cross bracing (4) at the right frame leg or vertical post Insert the extension strips for the earth bar (1) in the frame leg. Secure the extension strips for the earth bar (1) using a new slotted tube (2).
Magnefix MF 15 kV 3.8 Connecting the cables, general EMARK The cables should be connected only: by authorised and expert personnel; in accordance with the instructions in this manual; in accordance with the instructions of the cable manufacturer.
Magnefix MF 15 kV 3.8.3 Fixing the cable cores Universal cable core clamps Universal cable core clamps can be used for connecting: paper-insulated lead-covered cables with copper cores up to 3 x 95 mm plastic-insulated cables with copper cores up to 3 x 70...
Page 110
Magnefix MF 15 kV Universal cable box with metallic soldering gland for paper-insulated lead-covered cables with copper and aluminium cores up to 3 x 240 mm (C). Two protective sheath halves. One hose clip. C. Cable box with soldering gland ...
Cable boxes to deviating specification It is possible to use a different make of cable box or a combination of an Eaton cable box with deviating cable termination material. In this case terminate the cable and/or cable box in accordance with the instructions of the relevant manufacturer.
Magnefix MF 15 kV 3.9 Connecting the paper-insulated lead-covered cables 3.9.1 Connection of paper-insulated, lead-covered Cu cables up to 3 x 95 mm , universal clamps ARNING Always earth the installation. Never work on an installation that is fully or partially live.
Page 113
Magnefix MF 15 kV Saw off the cable box in accordance with the diameter (d) measured across the lead sheath. Take into account that several layers of polyethylene tape are to be applied on top of the lead sheath. Deburr any sharp edges.
Page 114
Magnefix MF 15 kV 12. Fix the cable in the cable clamp at the marked position (a). Move the distance plate (b) until the centre of the cable is exactly in line with the centre of the cable box. Firmly tighten the cable clamp.
Page 115
Magnefix MF 15 kV 21. Hang a nylon thread (a) folded double over the edge of each opening in the cable box (b) with the ends hanging inside. 22. Now slide the cable box completely onto the cast resin insulation.
For cables with an aluminium core The cable core clamps from Eaton are only suitable for connecting cables with a copper core. There is a maximum free space measuring Ø 40 x 85 mm to connect the cables with an aluminium core by means of crimp cable sockets, for instance.
Page 117
Magnefix MF 15 kV Procedure Incise the cable at the correct length, as shown in figure 2. L1 = 700 mm To simplify insertion of the cable cores in the right tubes of the cable box, it is recommended to cut the cable cores to different lengths.
Page 118
Magnefix MF 15 kV The filling opening is located at the front. Make sure the paper insulation of the cores does not get damaged. Slide the cable box onto the cable terminal block of the panel. Pull the cable next to the cable box until the polyethylene tape protrudes about 10 mm from the bottom side of the cable box.
Page 119
Magnefix MF 15 kV 18. Fit the connecting pieces to the connection pins using one of the washers. 19. Torque the hexagonal socket screws to 15 Nm (11 lbf). Make sure that in all three phases the screws are positioned straight ahead.
Page 120
Magnefix MF 15 kV 25. Hang a nylon thread (a) folded double over the edge of each opening of the cable box (b) with the ends hanging inside. 26. Now slide the cable box completely onto the cast resin insulation.
one hose clip. Nylon threads For cables with an aluminium core The cable clamps from Eaton are only suitable for connecting cables with a copper core. There is a maximum free space measuring Ø 40 mm x 110 mm to connect cables with an aluminium core by means of crimp cable sockets, for instance.
Page 122
Magnefix MF 15 kV Procedure Incise the cable at the correct length as shown. L1 = 650 mm Terminate the cable as shown in figure 2. L2 = 175 mm d = diameter across the lead sheath.
Page 123
Magnefix MF 15 kV Slide the cable box (a) onto the cable terminal block of the panel and pull the cable next to the cable box so that the bottom of the O-ring (b) is about 25 mm higher than the bottom of the cable box.
nylon thread For cables with an aluminium core The cable core clamps from Eaton are only suitable for connecting cables with a copper core. There is a maximum free space measuring Ø 40 mm x 110 mm to connect cables with an aluminium core by means of crimp cable sockets, for instance.
Page 125
Magnefix MF 15 kV Procedure Incise the cable at the correct length as shown. L1 = 650 mm Terminate the cable as shown in figure 2. L2 = 175 d = diameter across the lead sheath. Remove the lead sheath over a distance (d). Remove the sharp edges of the lead sheath.
Page 126
Magnefix MF 15 kV Grease the O-ring using silicone grease or acid-free Vaseline. Fit the O-ring in the upper recess (a) of the entry bushing. Press the plastic entry bushing in the cable box and fit the two fixing shells in the lower recess (b) of the entry bushing.
Page 127
Magnefix MF 15 kV 17. Fix the cable in the cable clamp (c) at the marked position (a). Move the distance plate (b) so that the centre of the cable is exactly in line with the centre of the cable box.
Magnefix MF 15 kV 3.10 Filling the cable boxes 3.10.1 Required materials A can of cable grease with a closed transport and storage lid Hand pump. Filling device with filling tube and valve. Filling hose with hose clip, shut-off ring and connector nipple.
Page 129
Magnefix MF 15 kV Secure the filling device by firmly tightening the screw in the top plate. Using the hose clip, firmly attach the hose to the filling tube of the filling device. Remove the nylon locking pin and the rubber sealing from the cable box.
Page 130
Magnefix MF 15 kV 15. Close the filling hose using the shut-off ring. 16. Reduce the pressure on the can by completely opening the valve. 17. Undo the hose clip and remove the can from the filling hose. 18. Hold the can in such a way that the grease in the filling hose cannot get into contact with the valve, in order to avoid any obstruction.
Page 131
Magnefix MF 15 kV 23. The lead sheath can now be earthed. Earthing is to be done right above the outer cable sheath so that the cable box can be lowered, should this be necessary. This earth connector has to be attached to the horizontal earth bar.
Magnefix MF 15 kV 3.11 Connection of plastic-insulated cables 3.11.1 Connection of plastic insulated Cu cables up to 3 X 70 mm , universal clamps ARNING Always earth the installation. Never work on an installation that is fully or partially live.
Page 133
Magnefix MF 15 kV Procedure: Terminate the cable in accordance with the cable manufacturer’s instructions. Pull up the cable and fix it in the cable clamps. Firmly secure the clamps. Cut off the cable cores, 2 or 3 mm below the cast resin insulated members (a).
Page 134
Magnefix MF 15 kV Turn the sealing plugs inside out. Using a pair of sharp scissors, carefully cut a hole in the conical part of the sealing plugs without making any notches. The diameter of this hole should be half the diameter of the core insulation.
Magnefix MF 15 kV 3.11.2 Plastic-insulated cables with copper cores ranging from 3 x 95 mm to 3 x 240 mm concentric clamps ARNING Always earth the installation. Never work on an installation that is fully or partially live.
Page 136
Magnefix MF 15 kV Procedure: Terminate the cable in accordance with the cable manufacturer’s instructions. Pull up the cable and fix it in the cable clamps. Firmly tighten the clamps. Cut off the cable cores 2 or 3 cm below the cast resin insulated members (a).
Page 137
Magnefix MF 15 kV Turn the sealing plugs inside out. Using a pair of sharp scissors, carefully cut a hole in the conical part of the sealing plugs without making any notches. The diameter of this hole should be half the diameter of the core insulation.
Page 138
Magnefix MF 15 kV 17. Slide the insulating conduits and the rubber sleeves onto the cast resin insulation. Check that the flattened edges of the washers around the insulating conduits abut. 18. Fit the two protective sheath halves (d) and secure them.
Magnefix MF 15 kV 3.11.3 Plastic-insulated cable in a top connection E A top connection has a construction similar to that of a bottom connection. But with a top connection the insulating conduits around the connection pins are filled with a moisture-repellent filling compound.
Magnefix MF 15 kV 3.11.4 Connecting a cable using alternative materials In deviation from the above procedure, cables can be connected in an alternative way. If in doubt, ask advice from Eaton. ARNING Connect aluminium cables to the copper connections pins of the Magnefix using copper/aluminium cable sockets.
Magnefix MF 15 kV 3.11.5 Connection of Eaton 16 mm transformer cable to the protected branch Required components Three sleeves (a). Three tapered sealing plugs (b). Three rubber sleeves (c). Two protective sheath halves (d). One plastic cap (f) (optional).
Page 142
Magnefix MF 15 kV Apply silicon grease to the front sides of the cables. Carefully push each cable up into the opening. Torque the three hexagon socket head screws in the protected branch to 15 Nm (11 lbf). Apply silicon grease to the sleeves and slide them up the three sealing caps.
Page 143
Magnefix MF 15 kV Position the rubber rings under the cable clamps, then tighten the cable clamps to secure the cables. Earth the cable shielding on the earth bar, for example using the supplied flexible connection. The bending radius of the cable should be a minimum of 15 x D (where D = cable diameter).
Never work on an installation that is fully or partially live. The rubber sleeves are not resistant to cable grease. Eaton cable core clamps are suitable only for connecting plastic-insulated cables with copper cores. Required components Three rubber sleeves (a).
Page 145
Magnefix MF 15 kV Carefully push the connection pin into the opening of the protected branch. Torque the hexagon socket head screws to 15 Nm (11 lbf). Apply acid-free Vaseline to the sleeves and slip them over the three sealing plugs.
Magnefix MF 15 kV 4. SYSTEM OPERATION 4.1.2 Safe switching-off This chapter contains the operating procedures for Eaton ARNING Magnefix switchgear. Never pull out a switch cap if an overcurrent or short-circuiting condition exists. AUTION Do not hold the switch cap at its half-removed...
Magnefix MF 15 kV 4.2.1 Switching-on ARNING Refer to the safety instructions in para. 4.1.1. Procedure ARNING Never fit a switch cap which has an overcurrent indicator red flag showing. Check that the overcurrent indicator (a) has been reset (no red flag is shown).
Page 148
Magnefix MF 15 kV Squeeze the locking pins on the switching handle to disengage them, then push the handle hard towards the installation. Thus releasing the closing springs. Then switching on occurs The main switch contacts close first, followed by the arcing contacts.
Magnefix MF 15 kV 4.2.2 Switching-off ARNING Refer to the safety instructions in para. 4.1.2. Procedure Lift the switch cap locking handle to disengage its locking tab from the fixed part, then turn the handle to it open position. Pull the switch cap sharply and firmly in one action out of the fixed part.
Magnefix MF 15 kV 4.3 Changing a fuse AUTION The fuses are very fragile, so handle them with care: Avoid impact forces and shocks. Never rest the fuse or filled fuse holder cap against the wall in an upright position.
Page 151
Magnefix MF 15 kV Remove the existing fuse. Check the cap for corrosion. Insert a new fuse in the cap. Slide the cap holding the new fuse in the fuse holder. 4, 6 Turn the interlock cam clockwise to align the arrows.
Magnefix MF 15 kV 4.4 Resetting an overcurrent indicator A switch cap can be provided with an indicator (a) for passing short-circuit currents. The switch cap has a small round window showing the rated value of the breaking current. The moment the current passing through the switch cap exceeds the value to which the indicator has been set, a red flag appears in the window of the switch cap.
Magnefix MF 15 kV 4.5 Voltage indication A single-pole voltage tester (type UNL) is available. The single-pole voltage tester is made up of two parts: The probe (antenna) with exchangeable test point (1); The grip (4). The probe is screwed onto the grip before use. During transport of the tester the probe can also be inverted and fixed onto the grip.
Magnefix MF 15 kV 4.5.1 Voltage indication Screw the probe onto the grip; if necessary, screw an adapter onto the probe. Make contact between the probe and the part of the installation being tested. Look at the indicator lamp. If the indicator illuminates the system is live.
Magnefix MF 15 kV 4.5.3 Phase coincidence indication A phase indicator is available to show phase differences. A single-pole voltage tester is available, see par. 4.5. The phase indicator includes two measuring rods, a voltmeter and a set of connecting wires. One of the measuring rods is fitted with a connector in which the voltmeter fits.
Magnefix MF 15 kV 4.5.4 Proving phase coincidence For measuring and testing, the cast resin insulated members are marked with the letters A to K. Measuring points for phase Check that all phases are live Test the phase indicator. Connect one test probe to earth.
Magnefix MF 15 kV 4.6 Earthing 4.6.1 Equipment Two methods can be used for earthing the cables: single- pole earthing, and three-pole quick earthing. For single-pole earthing, a bag containing single-pole earthing equipment is available. The equipment comprises: 3 earthing pins ...
Magnefix MF 15 kV 4.6.2 Single-pole earthing ARNING Do not fit an earthing pin unless the switchgear is dead. If an earthing pin is fitted to a live cast resin insulated member, a short-circuit current may cause the earthing pin to jump away, followed by an electric arc extending in the direction of the operator.
Page 159
Magnefix MF 15 kV Push in the operating rod in a sharp, firm movement to switch on the earthing pin on the cable to be earthed. When an earthing pin is correctly switched on, turn the operating rod to engage the locking pin in the fixed part, then remove the rod.
Magnefix MF 15 kV 4.6.3 Fitting three-pole quick earthing ARNING Do not fit an earth unless the switchgear is dead. First read the safety instructions in par. 4.1.1 on switching on and off the switch caps. Procedure Make sure the cable to be earthed is dead.
Page 161
Magnefix MF 15 kV Push the quick earthing device into the switch cap holder so it locks into the spring clamp. Engage the earthing cap as far as possible in the middle opening of the fixed part of the switchgear, ensuring that the earthing cap guide rail is on the left side.
Magnefix MF 15 kV 4.6.4 Removing three-pole quick earthing Proceed as follows: Unlock and remove the locking plate. Lift the switch cap locking handle to disengage its interlock cam from the fixed part, then turn the handle to it open position.
Magnefix MF 15 kV 4.6.5 Earthing a transformer ARNING Never put your hand between the red ring on the mounting rod and the earthing pins when fitting the earthing pins. Switch off the transformer panel. Remove the fuses. Make sure the switchgear is dead, and be careful of feedback from the low-voltage side.
Magnefix MF 15 kV 4.7 Measuring and testing 4.7.1 Measuring and testing without measuring rods Make the cables to be measured dead. Provide earthing (see 4.6.2.). Connect the measuring or testing equipment to the phase to be measured. Remove the short-circuit strip and earthing from the phase to be measured.
Page 165
Magnefix MF 15 kV Connect the measuring cables to the measuring rods. Insert the measuring rods in the phases to be measured. Perform the measurements. After measurement, remove first the measuring rods from the phases, then disconnect the measuring cables from the measuring rods.
5. SYSTEM COMMISIONING AND DECOMMISIONING The commissioning procedure for switchgear is included in The following is not inspected: the general conditions of sale of Eaton, or in the sales Civil engineering work. agreement. The connections of main and auxiliary cables (unless carried out by, or under the responsibility of, Eaton).
Magnefix switchgear should be disposed of in an environmentally-friendly manner. Destruction, re-use and disposal of removed substances and materials should be in accordance with the latest applicable standards. A list of materials used is available from Eaton upon request. 994.543 G01 05...
Magnefix MF 15 kV 5.3 Testing the extension The extension is to be tested before it is taken into 5.3.2 ]Mechanical testing operation. Testing the switch caps Mechanical testing Ensure that the red flag of the overcurrent indicator is Mechanical testing is done by closing and opening the not visible.
Magnefix MF 15 kV 5.3.3 Voltage drop measurements Having added a transformer panel to a transformer panel. Check that the switch and fuse caps have been removed from the added section. Arrange for a power supply source producing a 100A direct current.
Page 170
Magnefix MF 15 kV Having added a cable panel to a transformer panel. Check that the switch and fuse caps have been removed from the added section. Arrange for a power supply source producing a 100A direct current. Use a measuring pin insulated from the socket contact.
Page 171
Magnefix MF 15 kV Having added a transformer panel to a cable panel. Check that the switch and fuse caps have been removed from the added section. Arrange for a power supply source producing a 100A direct current. Use a measuring pin insulated from the socket contact.
Page 172
Magnefix MF 15 kV Having added a cable panel to a cable panel. Check that the switch and fuse caps have been removed from the added section. Arrange for a power supply source producing a 100A direct current. Use a measuring pin insulated from the socket contact.
Magnefix MF 15 kV 5.3.4 High voltage test This test is performed with a test voltage of 38 kV during 1 minute. Procedure The steps to be gone through depend on the type of the extension. Only perform the operations that apply to the extension in question.
This manual only deals with the type of maintenance the user can do. 6.1 Logbook You can make an appointment with Eaton to carry out an The user should keep a logbook with data about the overhaul or repair. You will find the address and telephone installation and any maintenance and repair carried out.
Magnefix MF 15 kV 6.2.3 Tools Procedure: Training Remove all switch and fuse caps. Eaton is also able to provide training for the technical personnel of Magnefix users. AUTION Be aware of feedback from the low-voltage side of MAC-05 conditioning fluid transformers.
Make it dead if necessary. for exceptional wear. If the installation has been made dead and is safely Eaton is available for advice and repair work 24 hours per earthed: day, 7 days per week. The address and telephone number Remove dust and dirt (if possible, use a hand brush).
Magnefix MF 15 kV 7. ACCESSORIES 7.1 Spare parts Descriptions and article numbers of spare parts Locking pin Art. No. 3681.369 Protective cover half (2 for cable box) Art. No. 3683.344 Cable box body up to 70 mm Art. No. 3681.313 Polyethylene tape Art.
Page 178
Magnefix MF 15 kV 12 Cap for busbar screw rod MD4/MF 24 Hose clip 32-50 for plastic gland Art. No. 3683.298 Art. No. 3683.579 13 B6K 8x12 pointed screw for cable core clamp 25 Fixing shell (2 for gland) Art. No. 3757.602 Art.
Page 181
Magnefix MF 15 kV Descriptions and article numbers of parts not shown in illustrations Distance plate for wall-mounted frame Art. No. 2882.204 Concentric cable core clamp for paper-insulated lead-covered cable and plastic-insulated cable having copper cores (3 off) for connection pin of 12...
Magnefix MF 15 kV 7.2 Accessories Descriptions and article numbers of accessories not shown in illustrations Earthing equipment (high speed) Pump Art. No. 2683.435 Art. No. 3681.934 Earthing equipment (low speed) Filling device with pump, filling tube with shut-off ring and filling lid Art.
Magnefix MF 15 kV 8. GLOSSARY 8.3 Equipment and its environment 8.1 Personnel and authorities Electrical installation Supplier A composition of electrical cables and equipment to Eaton or its representative. which the cables are connected. User Switch and distribution unit, switchgear...
Need help?
Do you have a question about the Magnefix MF 15 kV and is the answer not in the manual?
Questions and answers