MCset 4 - 24 kV - engineering site - Schneider Electric

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Close the earthing switch 78 - 07897542EN indice: D0 Tests on site Push the pushbutton of the earthing switch electromechanical lock. If the cubicle is not equipped with this option, go directly to the following sequence. Insert the crank into hole 5 and turn it clockwise until the earthing switch position indicator reads “on”. The earthing switch is in closed position. The MV cables are short-circuited and earthed. The selector in this position prevents the insertion of the circuit-breaker. Set selector 4 to . This operation requires first to pull outward the selector and then to turn it. Turn selector 4 clockwise to position I. The symbols marked on the yellow front cover summarise the above-mentioned procedure. For more protection, it is possible to prevent the insertion of the circuit-breaker by setting the selector P as shown in the following drawing. Schneider Electric
Prevent the insertion of the circuit-breaker Open the VT compartment door Schneider Electric Tests on site Set selector P to . Remove the 2 screws indicated in the figure and open the lower door. Make ineffective the interlock preventing the opening of the earthing switch with open door by entering the slot indicated with a screwdriver and pushing it downwards. This operation allows the access to the earthing switch operating shaft. Warning The operation described is allowed only for testing configuration; this operation, performed when the switchboard is in service, is extremely dangerous because it makes the operator reach the live parts. 07897542EN indice: D0 - 79
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Installation instruction Medium Vol
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2 - 07897542EN indice: D0 Contents
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Nota: this document is available fo
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Standard tightening torques (non gr
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Gas exhaust version with IPX1 prote
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Internal arc version with protectio
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Cubicle AD4 (for unit entry from ab
Page 16 and 17:
Handling Handling using a sling Use
Page 18 and 19:
The switchgear’s resistance to ag
Page 20 and 21:
Surface condition Floor quality Des
Page 22 and 23:
Placing and adjusting on earthquake
Page 24 and 25:
Safety rules for use Extraction and
Page 26 and 27:
Closing the MV door 24 - 07897542EN
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Procedure to draw-in the mobile par
Page 30 and 31: 28 - 07897542EN indice: D0 Mobile p
Page 32 and 33: Units equipped with fixed VTs To ha
Page 34 and 35: For unit equipped with fixed VTs To
Page 36 and 37: CL4 cubicle (bus-section) No access
Page 38 and 39: GL4 cubicle (bus-riser) No access f
Page 40 and 41: DI4 cubicle No access from the rear
Page 42 and 43: Preparation of the cubicle to the p
Page 44 and 45: Fastening to the floor on earthquak
Page 46 and 47: Assembly tunnel Cubicle configurati
Page 48 and 49: Assembly tunnel Cubicle configurati
Page 50 and 51: Cubicle coupling Cubicle configurat
Page 56 and 57: Connection of earthing busbar Take
Page 58 and 59: End panels assembling Cubicle confi
Page 60 and 61: End panels assembling Cubicle confi
Page 62 and 63: Fitting the main busbars For more d
Page 64 and 65: 2000 / 2500A main busbars 630 / 125
Page 66 and 67: 4 th cut 3 rd cut 2 nd cut 5 th cut
Page 68 and 69: LV cable connections Entry from the
Page 70 and 71: Starting conditions Equipotential c
Page 72 and 73: 1 to 4 single core cables per phase
Page 74 and 75: The earth braids or wires shall be
Page 76 and 77: Install FUSARC type fuses with medi
Page 78 and 79: Voltage test on the main circuits H
Page 82 and 83: Open the earthing switch 80 - 07897
Page 84 and 85: 82 - 07897542EN indice: D0 Schneide
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MCset 4 - 24 kV - engineering site - Schneider Electric

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