This document and its content, is for authorized company use onlySR-41459 - This document gives the supplementary requirements to IOGP S-701, S-702 and S-740 specification and datasheet ST520 , ST519 and ST517. The IOGP QRSs are replaced by Ch.4 in this document.The references listed in each clause are guides to standards with the requirements for the actual subject.Requirements in other standards are not limited to these references. The content in this document mainly specifies:Specific IEC requirements in more detail Which one out of several optional IEC alternatives to be used Requirements not covered in IEC Alternative requirements to the requirements described in IECA single AC UPS system includes the following:Rectifier and bypass input isolating switch Isolating transformers for main incomer and bypass Rectifier Battery with battery racks Battery circuit breaker with trip facilities Inverter Static bypass switch Manual bypass switch Main distribution board Incomer circuit breaker for main distribution board Capacity discharge test facilities for batteries Black start facility from battery (when the main supply is not available) Insulation monitoring system Provisions for remote monitoring Mimic diagram on frontSR-41477 - Parallel AC UPS system A parallel AC UPS system shall be two single AC systems, each connected to separate AC main distribution boards. If specified the two single systems shall be connected to a common AC main distribution board. The two AC main distribution boards shall have interconnection and synchronising facilities included to allow the two systems to operate in parallel. Each system shall be rated for 100% of the specified load.SR-41485 - For parallel UPS systems, it shall be possible to remove one UPS unit for replacement without downtime on the distribution board.SR-41486 - For single AC UPS system, a switch facility between rectifier supply and bypass supply shall be provided. An interlock should be implemented to ensure that one incomer open before permission is given to close this switch. The switches shall be manually operated only, lockable and clearly marked.SR-41502 - Bus bars shall be made of electrolytic copper.Requirements for thermographic inspection on live equipment are provided in TR3120 chapter 3.9.SR-41505 - Output terminals in the UPS unit and input terminals in the main distribution board shall be equipped with duplicated terminals for future modification purposes.SR-41508 - All installation of primary wiring to equipment such as fuses, circuit breakers and measuring devices in connection with main circuits shall be made short circuit proof.SR-41509 - All internal cables between shipment sections shall be premade, marked, terminated and coiled in one of the sections.SR-41525 - The harmonic current feedback into the supply network shall, in normal operation, be limited to a crest factor (Ipeak/Irms) of 2 unless otherwise stated in data sheet.SR-41526 - The UPS system shall withstand a minimum load crest factor of 3:1 (Ipeak/Irms).SR-41544 - Functionality shall be provided to keep the load voltage within +/- 10% of the nominal voltage during all charging conditions on DC systems. Different load voltage limits may be necessary for particular applications.SR-41546 - The following local alarms shall be provided as a minimum, and be displayed on the front of the panels:Rectifier failure Rectifier fuse failure DC-over voltage (Pre-warning (H), Rectifier shutdown (HH)) DC-under voltage Over temperature, (Pre-warning (H), Rectifier shutdown (HH)) Main supply failure Battery breaker/fuse failure Earth faultSR-41547 - The following local status signals shall be provided as a minimum, and be displayed on the front of the panels:Main supply "ON" Battery switch "ON" Battery on normal charge Battery on boost/quick chargeSR-41548 - For DC UPS systems in parallel mode the following apply:If the UPS system has two parallel rectifiers, the normal operation shall be that both rectifiers are working in parallel supplying the DC load and in addition float charging the battery. If one rectifier fails then the remaining rectifier shall be rated to supply the total DC load and its own battery float charge requirements. Parallel rectifier units shall be designed so that during parallel operation, load sharing shall occur. The difference between the rectifiers DC current shall not exceed 10 % of the rated current for one rectifier.SR-41563 - Emergency batteries shall have a capacity to supply emergency power for a period of minimum 30 minutes, ref. ISO 13702, table C1. UPS for emergency lighting shall have a capacity of 60 minutes, ref. EN1838 section 4.2.5. These batteries shall be dimensioned tosupply rated load for 30 or 60 minutes (according to requirement above) when charged to 90% of rated capacity at an ambient temperature of 5°C throughout the specified lifetime.An alarm indicating rectifier fault may be implemented instead of discharged battery alarm. References are made to 3.11 in this document.SR-41567 - Transparent containers are not applicable for other batteries than those requiring refilling of electrolyte. Lead-Acid battery shall be provided with Ex-plugs to secure easy and safe check of electrolyte weight.Individual cell voltages in a battery should not deviate by more than 15 mV when delivered from manufacturer (new).SR-41570 - The torque values on battery poles shall be specified and clearly marked on each battery cell or battery bank rating plate.SR-41580 - The tripping of the battery breaker shall be controlled by an adjustable time relay located in the UPS or in an external battery breaker.The time relay shall have the following three inputs:The time relay shall have a lockable manual override switch. A local alarm shall be provided to show status of this manual override switch.SR-97865 - If the battery circuit breaker is part of a safety instrumented function the delivery shall be:compliant with IEC 61508 or proven in use/prior use in accordance with IEC 61508/IEC 61511and in accordance with the SIL requirement of the Safety instrumented function as specified in the data sheet and the Safety Requirement SpeciificationNote: the Safety Requirement Specification (SRS) is a document provided by the purcharser (ref. IEC 61511-1 10.3)SR-41593 - The inverter shall meet the dynamic voltage/ frequency requirements in table 1 regarding connection/disconnection of load.SR-41606 - If the UPS switches over to the bypass supply due to inverter failure, the logic shall lock out the inverter and shall not automatically transfer back to the inverter supply. No-break return to the inverter supply shall be manually initiated.SR-41607 - In case of a short circuit on the outgoing feeders, the UPS shall automatically switch to bypass mode if bypass is available. When the short circuit is cleared, the UPS shall automatically switch back to inverter mode.SR-41611 - Selection of miniature circuit breaker (MCB) / fuses shall be based on a protection and discrimination study.SR-41612 - All live parts shall be protected against accidental touch.SR-41613 - Each main distribution board with IT system earthing shall be equipped with an insulation monitoring system and a common alarm:The insulation monitoring system shall automatically identify earth fault individually on all feeders to sub-distribution boards. Each outgoing feeder from the main distribution board shall be protected by a MCB/MCCB (or fuse) with an additional alarm contact.SR-41614 - The following local alarms shall be provided as a minimum:SR-41620 - Each UPS unit shall have a separate control unit operating 100% independently of other UPS units, i.e. a parallel UPS system shall have two control units. Each control unit shall have separate settings for all relevant parameters.SR-41621 - The UPS unit shall be equipped with insulation monitoring device. Battery earth leakage monitoring shall be included.Protection should be in accordance with TR3120 chapter 4.4.7.SR-41626 - Discrimination between UPS / bypass / battery breakers and fuses in the main UPS distribution board shall be documented. Selection and coordination of protection devices shall ensure selectivity in all modes of operations.SR-41627 - Maximum rating of fuses from main distribution board to achieve protection discrimination without shutdown of the UPS shall be stated.SR-41635 - The results of all tests shall be recorded on test sheets together with all rated values and equipment data.SR-41636 - Applicable shop tests shall be carried out on the completed equipment in accordance with the relevant standards and recommendations. Shop tests shall be fulfilled before factory acceptance tests.Checking of data Mechanical inspection Insulation test High voltage test Complete operation and functional test Primary injection tests on protective relays Check of relay settings Frequency shift test Check of all alarm functions Perform manual return to inverter output from bypass supply, and record results on oscillograms Simulating of inverter failure which would cause transfer of load from inverted output to bypass supply, and recording of results on oscillograms. Short Circuit Test. Simulated test for the correct functioning of the distribution protective device should be made through an impedance which represents the load loop, in additionto a direct short circuit. The output shall be recorded on an oscillogramSR-41640 - These tests shall be considered to be the minimum test requirements for an UPS system. If additional tests are required, then they shall be specified in the UPS data sheet.Table 2 – Uninterruptible power supply (UPS) system test requirementsChanges in version 4: Prepared for use of IOGP specification S-701, S-702 and S-740, with supplementary requirements.Section 3.12,1: Preparation to allow Li-ion battery technology.Update of references in the whole document. Changes in version 3.02: Document updated from Statoil template to template. Wording "Statoil" changed to "". Insignificant changes, performed by system administrator, on behalf of author/owner.Changes in version 3.01: Published in new minor version as part of the GEM-project (Governing Element Management). TR-document is digitalized, and each requirement element is now identified with a unique IDChanges in version 3: There are editorial updates and clarifications in all sections.Generally, TR3120 is referred to for general requirement for electrical equipment. Section3.1: Requirement regarding air-cooling is modified. Section3.1: Requirement regarding switch facilities for AC UPS is modified. Section3.8: : Requirement regarding noise limit is modified Section 3.12.1: Requirement regarding calculating battery capacity is modified Section 3.13: Requirement regarding UPS withstand of overload is modified Section 3.13: Requirement regarding short circuit capability will be stated via datasheet. Section 4.2: Added reference to type test Section 4.4: Table 2, item 5. Short circuit test shall be in inverter mode Section 4.4: Table 2. Requirement for audible noise test is deleted.ISO 13702, 2015 Petroleum and natural gas industries —Control and mitigation of fires and explosions on offshore production installations — Requirements and guidelinesLoads Within ¼ period Within 10 ms Within 100 ms 0-50 % load on/off Max ± 30 % Max ± 10 % Project specific 0-100 % load on/off Max ± 50 % Max ± 30 % Project specificAC Alternating Current DC Direct Current EMC Electromagnetic Compatibility IP International Protection IT Insulated Terra LCI Life Cycle Information MCB Miniature Circuit Breaker MCCB Moulded Case Circuit Breaker RMS Root Mean Square UPS Uninterruptible Power SupplyShall (requirement) Requirement strictly to be followed in order to confirm to the document and from which no deviation is permitted, unless a deviation permit is approved. Should (recommendation) Indicates that among several possibilities one is recommended as particularly suitable, without mentioning or excluding others, or that a certain course of action is preferred but not necessarily required, or that (in the negative form) possibility or course of action is deprecated but not prohibited. May Indicates a course of action permissible within the limits of the document. Can Statements of possibility and capability, whether material, physical or causal.