Eaton NOVA 15i Installation And Operation Instructions Manual
Also see for COOPER POWER SERIES: Installation and operation instructionsInstallation instructionsInstallation instructionsInstallation and operation instructionsOperation instructions
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Contents
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10Effective January 2017NOVA® 15i, NOVA 27i, and NOVA 38i; Three-phasemicroprocessor-controlled; installation and operationinstructions (S280-43-1)Instructional Literature IL0104001EGrounding with a local supply voltage trans-former: 4-wire multi-grounded, 3-wireungrounded, or impedance-groundedInstallation with a local supply voltage transformer must includethe following (refer to Figure 10):• Protection of the recloser bushings and the supplyingtransformer with lightning arresters.• Grounding of the recloser head and tank.• Grounding of the transformer tank.• Grounding of the control cabinet.• Grounding of the SCADA equipment.1. In pole-mounted applications, a ground connection must be madebetween the recloser, transformer, recloser control, and SCADA equipmentfor proper protection of the equipment. It is recommended to use aminimum of 50 sq mm copper wire for the pole ground connection to therecloser.2. Any ground wire of the equipment is not allowed to be connected to theneutral line.3. Recommended grounding resistance value is 4Ω.Grounding with a remote supply voltage trans-former: 4-wire multi-grounded, 3-wireungrounded, or impedance-groundedInstallation with a remote supply voltage transformer must includethe following (refer to Figure 11):• Protection of the recloser bushings and the supplyingtransformer with lightning arresters.• Grounding of the recloser head and tank.• Grounding of the transformer tank.• Grounding of the control cabinet.• Grounding of the SCADA equipment.Figure 10.Recommended grounding method for NOVA i recloserwith microprocessor-based control and local supplyvoltage transformer.Figure 11.Recommended grounding method for NOVA i recloserswith microprocessor-based control and remote supplyvoltage transformer.CONTROLLERCONTROLLER |
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