7.0 Technical Guarantee Specification of 60MVA, 132/33kV Mobile Substation. TECHNICAL DATA SCHEDULE 60MVA, 132/33 kv MOBILE SUBSTATION

Transcription

1 92 Section VI. Schedule of Requirements 7.0 Technical Guarantee Specification of 60MV, 132/33 Mobile Substation TECHNICL DT SCHEDULE 60MV, 132/33 MOBILE SUBSTTION ITEM DESCRIPTION UNITS REQUIRED GURNTEED POWER TRNSFORMER 1 Manufacturer 1.1 Country of Origin 1.2 Type Oil iersed 1.3 No. of phase / winding Threephase with 2 windings 2.0 Rated data and characteristics 2.1 Rated power: primary/secondary MV Cooling ONN/ONF 2.3 Rated voltage HV winding LV winding 2.4 Tap changer: manufacturer Country of Origin model type onload tap changer location regulating range rating 2.5 Frequency Hz Connection of the threephase windings (group of vectors IEC 76) 2.7 Rated current at ONF rated power and rated voltage tap: HV winding LV winding 2.8 Noload current through: HV winding LV winding OLTC YNd11 CFVV HV neutral x x 1.25 Rated power on all taps specify 2.9 Short circuit capacity HV system 7000 MV Short circuit capacity LV system 1000MV Direct impedance at nominal voltage tap: HV/LV Direct impedance at minimum voltage tap: 10.6

2 Section VI. Schedule of Requirements 93 TECHNICL DT SCHEDULE 60MV, 132/33 MOBILE SUBSTTION ITEM DESCRIPTION UNITS REQUIRED GURNTEED HV/LV Direct impedance at maximum voltage tap Zero sequence impedance at nominal voltage tap HV / LV 2.10 Tolerance to be applied to the short circuit impedance, in terms of of the guaranteed value on: nominal voltage tap other taps 2.11 Short circuit data Short circuit syetrical current duration Sec Syetrical short circuit current withstand during the indicated period and asyetrical short circuit withstand: HV winding k k (peak) LV winding k k (peak) ±7.5 ±10 ltitude M 1000 prefault voltage p.u Guaranteed losses Noload losses at rated voltage and frequency at 75 degree centigrade kw Noload current at rated voltage, frequency and power Noload losses capitalized value US $/kw Tolerance to be applied to noload and on load losses (in of the guaranteed value) Onload losses at rated voltage and frequency, with rated voltage tap and ONN rating: HV winding LV winding tertiary winding kw kw kw Onload losses capitalized value US $/kw Load loss at 75 degrees centigrade, 60MV, 132/ uxiliaries consumption at second stage of cooling (ONF) kw kw

3 94 Section VI. Schedule of Requirements TECHNICL DT SCHEDULE 60MV, 132/33 MOBILE SUBSTTION ITEM DESCRIPTION UNITS REQUIRED GURNTEED 2.13 Highest voltage for equipment: HV winding LV winding Rated insulation level: Short time low frequency applied voltage withstand: HV winding line terminal LV winding line terminal H.V neutralgraded insulation control wiring Full Wave Impulse Basic impulse level: HV winding line terminal LV winding line terminal HV neutral graded insulation 2.15 Temperature rise limits at maximum power output at ONN and ONF ratings and at lowest voltage tap and corresponding voltage: mbient temperature Top oil temperature rise verage winding temperature rise Temperature class 2.16 Permissible overload in emergency cases: permanent permissible overload based on highest winding temperature which exceeds by 5 o C the guaranteed limit permanent permissible overvoltage based on the maximum top oil temperature which exceeds by 5 o C the guaranteed limit at rated power (in of the rated voltage) 2.17 Oil: (peak) (peak) (peak) o C o C o C MV PCB prohibited manufacturer type data sheet attached 2.18 Bushings HV bushings: class manufacturer type designation rated current short circuit withstand basic insulation level power frequency withstand for 1 minute creepage distance LV bushings: class manufacturer type designation rated current k (peak) NYNS Yes / 36

4 Section VI. Schedule of Requirements 95 TECHNICL DT SCHEDULE 60MV, 132/33 MOBILE SUBSTTION ITEM DESCRIPTION UNITS REQUIRED GURNTEED short circuit withstand basic insulation level power frequency withstand for 1 minute creepage distance Neutral bushings: class manufacturer type designation rated current short circuit withstand basic insulation level power frequency withstand for 1 minute Creepage distance Design data: Maximum flux density in the columns at: rated voltage 105 of the rated voltage Maximum flux density in the yokes at: rated voltage 105 of the rated voltage Maximum current density at ONN rated power and rated voltage tap: HV winding LV winding Winding resistance: HV winding LV winding Voltage regulation at ONN rating and rated voltage tap (in of the rated voltage): with unity power factor:. HV side. LV side with 0.9 power factor (lagging):. HV side. LV side with 0.8 power factor (lagging):. HV side. LV side Primary exciting current, LV side: at 0.01 second at 0.1 second Core type (core or shell) k k tesla tesla tesla tesla / 2 / 2 ohms ohms k k (peak) (peak) / / Winding conductor Copper 2.20 udible noise level Voltage in percent of rated value ONN rating db() max

5 96 Section VI. Schedule of Requirements TECHNICL DT SCHEDULE 60MV, 132/33 MOBILE SUBSTTION ITEM DESCRIPTION UNITS REQUIRED GURNTEED ONF maximum rating db() 78 max 2.21 Radio Interference Voltage at 0.5 MHz as per IEC Weights and dimensions 3.1 Total weight of transformer, equipped for service 3.2 Weight: oil core and coil assembling tank and accessories net copper net core steel µv 2500 max Kg kg kg kg kg kg 3.3 Maximum shipping weight (heaviest item) Kg 3.4 Height from foundation to: highest point of HV bushing highest point of tank highest point of conservator tank highest point of lifting hook to remove core and coil assembly 3.5 Outline dimensions: length width specify 3.6 Layout drawing To be enclosed with bid 3.7 Maximum shipping dimensions of tank: outside height outside width outside length 3.8 Transportation drawing To be enclosed with bid 4.0 Onload tap changer 4.1 Manufacturer 4.2 Type 4.3 Rated current 4.4 Number of steps Short circuit withstand k 4.6 BIL to ground through the regulating coil (peak) 4.7 Power frequency withstand voltage for 1 minute through the regulating coil 4.8 Tap transition device Resistance type 4.9 Parallel automatic controller Masterfollower

6 Section VI. Schedule of Requirements 97 TECHNICL DT SCHEDULE 60MV, 132/33 MOBILE SUBSTTION ITEM DESCRIPTION UNITS REQUIRED GURNTEED 5.0 Current transformer incorporated into the power transformer 5.1 CT in HV phase bushings: Number of cores per bushing Primary rated current Secondary rated current ccuracy class and Burden: protection metering 1 (3) 5P20, 20V (1) CL0.2, 20V Ratio 300:1:1:1: Short circuit withstand Continuous secondary current thermal limit 5.2 CT in LV phase bushings: Number of cores per bushing Primary rated current Secondary rated current ccuracy class and Burden: protection metering (3) 5P20, 20V (1) CL0.2, 20V Ratio :1:1:1: Shortcircuit withstand Continuous secondary current (thermal limit) 5.3 CT in HV neutral bushing: Number of cores per bushing Primary rated current Secondary rated current ccuracy class protection 5P20, 20 V Ratio 300: Short circuit withstand Continuous secondary current (thermal limit) 6.0 Layout 6.1 Primary winding bushings (3) Long. xis 6.2 Secondary winding bushings (3) Long. xis (opposite to HV) 6.3 Conservator tank Transv. xis

7 98 Section VI. Schedule of Requirements TECHNICL DT SCHEDULE 60MV, 132/33 MOBILE SUBSTTION ITEM DESCRIPTION UNITS REQUIRED GURNTEED 6.4 Tap changer Transv. xis 6.5 Control cabinet 6.6 Radiators 6.7 Terminal block connection drawing drawings to be enclosed 7.0 Standards 7.1 Manufacturing IEC IEC IEC IEC IEC IEC IEC NEM TR1 7.2 Quality assurance ISO uxiliary supply voltages 8.1 OLTC motor and fans, at 50Hz Vac OLTC & cooling control circuits Vac Heaters and lights Vac Relays & instruments Vdc High voltage switchgear Insulation Type ir or Gas 9.2 Rated voltage / maximum voltage 132 / Power frequency withstand voltage(1/ min (rms) Lightening impulse withstand voltage (peak) Rated current Rated short time withstand current (1sec) k Current transformer ratio /1 Metering class ( core 1) burden Security factor Protection class ( core 2) burden ccuracy limit factor 9.9 Design pressure of circuit breaker enclosure Rated circuit breaker operating sequence Stored switching sequence Rated current of circuit breaker Rated short time withstand current Rated DC voltage Rated making current 9.10 Routine test pressure kpa 1200 kpa k V k <10 5p O0.3sCO1min CO O CO

8 Section VI. Schedule of Requirements 99 TECHNICL DT SCHEDULE 60MV, 132/33 MOBILE SUBSTTION ITEM DESCRIPTION UNITS REQUIRED GURNTEED 9.11 Bursting disc release pressure kpa Combined disconnector & earthing switch 132 Manufacturer Country of origin Type Rated voltage Rated current Rated short time withstand current Rated peak current Disconnector motor operating time uxiliary contacts Disconnector dc voltage Power frequency Impulse Operated mechanism Surge rrester (with counter) Manufacturer Country of origin Type Rated voltage Nominal discharge current TOV capability 1.0s Shortcircuit capability high current 0.2s Line discharge class, IEC Energy capability Insulator colour / material Creepage distance (nominal) Maximum usable bending moment k, 1sec k sec V kcrest rms k Class Ur Nm 3 pole double break for outdoor <4 4NO + 4NC Motor operated with manually operated earthing blade Metal oxide, Gapless Gray / Silicon Medium Voltage Switchgear Manufacturer Country of origin Type Type of insulation SF6 for outdoor ir Rated / maximum voltage 36 Power frequency withstand voltage(1/min) rms 70 Rated normal current 1250 Rated short time withstand current of circuit breaker (3sec) Rated breaking current Rated making current k k k

9 100 Section VI. Schedule of Requirements TECHNICL DT SCHEDULE 60MV, 132/33 MOBILE SUBSTTION ITEM DESCRIPTION UNITS REQUIRED GURNTEED 11.2 Rated operating sequence acc to IEC Rated DC voltage uxiliary contacts Power frequency Impulse 36 Disconnector Manufacturer Country of origin Type Rated current Power frequency withstand across isolating distance Lightning impulse withstand voltage (1sec) Rated peak current Short circuit withstand at 1sec voltage transformer Manufacturer Country of origin Type Thermal capacity Rated output accuracy class V k k O0.3sCO15sCO 110 4NO + 6 NC Outdoor/Indoor Voltage factor/time 1.5 / 30s Voltage ratio 33000/ 3:110/ 3: 110/ 3 One minute power frequency withstand voltage on: Primary winding Secondary winding Ratted voltage insulation material / color Grounding Transformer Rated power Primary Rated voltage Primary connection Vector group Rated insulation level HV side Rated insulation level LV side Secondary connection Secondary rated voltage, no load Insulation class V V Class V Outdoor/Indoor p Porcelain / brown , 2x2.5 Zigzag Znyn 36/70/170 3 Star + neutral 415/240

10 Section VI. Schedule of Requirements 101 TECHNICL DT SCHEDULE 60MV, 132/33 MOBILE SUBSTTION ITEM DESCRIPTION UNITS REQUIRED GURNTEED Noload losses Short circuit losses short circuit impedance Surge rresters W W Type Metaloxide, gapless Rated voltage (Ur) rms 33.8 Maximum continuous operating voltage (Uc) KVrms 27 Short circuit capability, high current, 0.2s k 20 Discharge current withstand strength: High current, 4/10microsecond Low current, 2000micro second k (crest) (crest) Line discharge class, IEC Class 2 Energy capability (Ur) 5.5 TOV Capability (after rated energy): 1sec 10sec rms rms cantilever strength Nm 350 Torsion strength Nm 68 Vertical load N 1200 Insulation colour / material Gray / Silicon Energy at one high current impulse 100k 4/10microsecond 11.6 Expulsion fuse cutout kj/uc 3.6 Rated voltage 36 Rated frequency withstand voltage: To ground cross insulated distance Rated current 100 Rated short time withstand current k 11.2 Rated current of fuse Trailer Qty Type Lowbed

11 102 Section VI. Schedule of Requirements TECHNICL DT SCHEDULE 60MV, 132/33 MOBILE SUBSTTION ITEM DESCRIPTION UNITS REQUIRED GURNTEED 12.2 Load on King Pin (approx) Ton 18 xels Qty 6 (3 steerable) Dimensions (approx) m (LxWxH) 17x3.5x uxiliary 24VDC connection to 24VDC system of prime mover spirit level on trailer 12.4 Brakes Qty 2 pneumatic brake systems 13.0 Control Cubicle: No General Consists of two compartments, one contains relays, control equipment, C/DC panel and the other one contains the batteries. The floor of the building shall be covered with rubber sheet. Walls and roof: This shall be of sandwitch construction using plastic coated aluzink sheet on both sides of an polyurethane insulation layer. Total thickness not less than 60. The roof shall be covered with rubber sheet. Lighting: Both compartments shall be illuminated with compact fluorescent lamps (CFL). Heating: The rooms shall be installed with panel type, adjustable temperature regulator. Ventilation: The cubicle shall be equipped with an airconditioning unit with adequate cooling capacity for ambient temperature of 45 o C. The cubicle shall be installed with ventilators capable of keeping dust outside the room.

12 Section VI. Schedule of Requirements 103 TECHNICL DT SCHEDULE MOBILE SUBSTTION 60MV, 132/33 ITEM DESCRIPTION UNITS REQUIRED GURNTEED 14 Control, protection and metering panel. Make County of origin Type of cubicle Surface treatment with acrylic paint Dimension Type of Energy meter Type of Battery charging system: Type of battery Number of cells Nominal capacity Numerical transformer protection with over current & distance protection functions but prograable for temperature and buchholz etc) Make Feeder terminal relay for protection, measurement, control, counication and monitoring functions. Earth fault and under voltage Make Voltage regulator, with three phase over current & under voltage blocking Make NiCad No h RL x2200x /5h Yes Yes Yes 14.0 Installation Outdoor 15.0 Mandatory Spares SF6 gas Gas refilling unit kg No. 40 1