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— D I S T R I B U T I O N S O LU T I O N S OVR-15, 27 and 38 outdoor vacuum recloser low voltage unit with SEL-751 Instruction, operation and maintenance manual...
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O V R - 1 5 , 2 7 A N D 3 8 O U T D O O R VA C U U M R E C L O S E R L O W VO LTA G E U N I T W I T H S E L -7 5 1 —...
3 Receipt and storage prior to installation 3.1 Receipt of recloser 3.2 Storage of recloser LV unit 3.3 Handling 4 General description of LV cabinet of OVR-15, 27 and 38 recloser 4.1 LV cabinet assembly 4.2 Control 4.2.1 Low voltage control cabinet (LV cabinet) 4.2.2 Programmable battery charger:...
This manual contains the information needed 1.1. Environmental protection program to install the low voltage (LV) cabinet of the OVR-15, 27 and 38 reclosers LV cabinet is medium voltage OVR-15, 27 and 38 vacuum manufactured in accordance with ISO 14001 reclosers and put them into service.
High-grade energy additive in refuse incineration 1.3. Product-related safety notices Detailed descriptions of standard repair The OVR-15, 27 and 38 reclosers LV cabinet should procedures, safety principles and service be installed within the design limitations as operations are not included. It is important to note described on its nameplate and in this manual.
— 2.2 Documents Documents provided with the LV unit during dispatch include: • Instruction manual • Operator’s quick reference guide — • Routine test certificate • Drawings • Packing list • Other documents as mutually agreed in contract with ABB...
R E C E I P T A N D S TO R A G E P R I O R TO I N S TA L L AT I O N — 3.3 Handling 03 LV Cabinet lifting detail The LV cabinet comes with welded lifting brackets on the sides of the cabinet for lifting.
A programmable battery charger is included to 04 LV control cabinet overview Each OVR-15, 27 and 38 recloser LV cabinet has an convert the auxiliary power supply connected from intelligent battery charger, capacitors, control an external PT or equivalent to a suitable form...
G E N E R A L D E S C R I P T I O N O F LV C A B I N E T O F O V R -1 5 , 2 7 A N D 3 8 R E C LO S E R 4.2.5 Rechargeable batteries For the auxiliary supply voltage/frequency —...
• During consistent long duration outages, 4.2.7 SEL-751 control the battery bank voltage may drop below 18 V The OVR-15, 27 and 38 recloser LV cabinet is (9 V per battery), indicating battery may have supplied with the microprocessor-based SEL-751 deep discharged and cannot be charged intelligent electronic device (IED).
G E N E R A L D E S C R I P T I O N , S TA N D A R D P R O D U C T I O N T E S T S — 5 Standard production tests The OVR-15, 27 and 38 recloser LV cabinets are tested thoroughly at the factory before shipping. The standard factory production tests include: 1.
O V R - 1 5 , 2 7 A N D 3 8 O U T D O O R VA C U U M R E C L O S E R L O W VO LTA G E U N I T W I T H S E L -7 5 1 — 6 Installation — The OVR-15, 27 and 38 recloser LV unit can be 6.1 Grounding 08 Provisions for grounding connections...
HV and LV cabinets. from a pole-mounted VT (PT), the power rating of the VT (PT) should be a minimum of 250 VA. Unless specified, ABB will not supply the VT (PT) with the recloser. • Before connecting the external auxiliary...
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O V R - 1 5 , 2 7 A N D 3 8 O U T D O O R VA C U U M R E C L O S E R L O W VO LTA G E U N I T W I T H S E L -7 5 1 6.5 Table 2: Operating procedure Initial conditions at the time OVR-15, 27 and 38 reclosers are shipped from the factory with the following status: of shipping • Recloser interrupter contacts in OPEN (OFF) condition.
I N S TA L L AT I O N , I N S P E C T I O N A N D M A I N T E N A N C E — 7 Inspection and maintenance The OVR-15, 27 and 38 LV unit will require minimal 7.2 Additional activities before performing any maintenance on the recloser LV unit maintenance if handled properly.
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-OR- switch The 52a/b auxiliary limit • Replacement of the 52a/b switch is faulty/ damaged switch may be needed if (52a/b auxiliary limit switch found to be faulty/ is mounted in HV unit) damaged • Contact ABB Customer Service Group...
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Condition monitoring Condition monitoring Out of the rated life of Contact the nearest ABB alarm activated alarm on relay HMI 10,000 CO operations, Customer Service Group (This is a proactive alarm turning RED...
C O M M O N I S S U E S A N D T R O U B L E S H O OT I N G , G E N E R A L O V R -1 5 , 2 7 A N D 3 8 B LO C K D I A G R A M — 9 General OVR-15, 27 and 38 block diagram 9.1 Typical block diagram — OVR gang-operated system...
O V R - 1 5 , 2 7 A N D 3 8 O U T D O O R VA C U U M R E C L O S E R L O W VO LTA G E U N I T W I T H S E L -7 5 1 — 10 Typical rating plate details 10.1 Rating plate on LV cabinet Description Product Product name OVR-15 LV cabinet OVR-27 LV cabinet OVR-38 LV cabinet Rated voltage 15.5 kV 27 kV 38 kV...
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A N N E X Temperature (thermal) characteristics Service life (effect of temperature) Every battery will see reduction in Ah capacity Operating temperature also has effect on battery with increasing service life. General characteristics capacity because rate of discharge is a function of the battery show that with usage at 20 °C, of ambient temperature for supplied batteries.
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We reserve the right to make technical changes or modify the contents of this document without prior notice. With regard to purchase orders, the agreed particulars shall prevail. ABB Inc. does not accept any responsibility whatsoever for potential errors or possible lack of information in this document.