S280-90-5 - Cooper Industries
Contents
1. In addition to this manual also refer to the appropriate service manual for the model being equipped with the kit Product Service Type Model Information Single Phase E 4E L S280 10 8 Reclosers D DV S280 20 1 VXE S280 16 1 V4L V4E S280 10 8 Three Phase 3H S280 10 4 Reclosers 6H V6H 8280 10 14 R S280 30 2 RE S280 40 3 RX S280 30 8 RXE S280 40 7 RV S280 30 4 RV Serial No 4111 and after S280 30 9 RVE S280 40 5 W WV27 WV38X VW VWV27 VWV38X 280 30 1 WE WVE27 WVE38X VWE VWVE27 VWVE38X 280 40 2 Sectionalizers GN3 270 10 8 GNSE GN3VE S270 15 1 GV Serial No 1302 and above S270 20 2 GV Serial No 2265 and above S270 20 3 GW 270 20 3 GWC 270 21 1 Switches F S260 50 1 TSC 260 20 10 VRV S260 20 6 Acceptance and Initial Inspection Each Slip On Bushing CT kit is in good condition at the factory and when accepted by the carrier for shipment Upon receipt inspect the carton for signs of damage Unpack the kit s and inspect it thoroughly for damage incurred during shipment If damage is discovered file a claim with the carrier immediately Handling and Storage Be careful during handling and storage of the kit to mini mize the possibility of damage If the kit is to be stored for any length of time prior to installation provide a clean dry storage area ANSI Standards Kyle reclosers are designed and tested in accordance with ANSI standards C37 60 and C37 852. 1 2 V From the curve this voltage pro duces an exciting current of 0 41 A and the total secondary current will be 3 0 41 3 41 A Multiply this by the turns 3 41 x 18 61 38 the actual primary current COOPER Power Systems 1045 Hickory Street Pewaukee WI 53072 USA www cooperpower com KA2048 187 Rev 03 KDL 6 04
3. 20 10 8 6 5 4 W O 3 lt a 2 4 100 5 C D gt 3 1 DC RESISTANCE 8 0470 0700 0210 O 6 40T 60T 18T H n 4 3 A c m 2 B D _ WINDING NO 16 AWG al 01 02 03 04 06 08 1 2 34 681 2 34 6 810 SECONDARY EXCITING CURRENT AMPS Figure 7 Typical secondary excitation curves for 600 5 Multi ratio Slip on Bushing Current Transformer Catalog Numbers KA712L2S KA712L3S and KA712L5S SAFETY FOR LIFE 2004 Cooper Industries Inc Kyle is a registered trademark of Cooper Industries Inc CT Excitation Curves For specific applications at burdens different from those plotted on the correction curves the secondary excitation curves Figures 6 and 7 can be used These curves plot the CT secondary voltage versus the exciting current of the CTs for all ratios For a given sec ondary load the secondary voltage is the product of the secondary impedance and the actual secondary current Using this voltage the secondary exciting current can be deter mined from the appropriate curve The total secondary current is the sum of the meter reading and the exciting current Multiplying this total secondary current by the actual turns ratio of the CT winding will give the actual primary current How to Use the Excitation Curves Using the same assumptions as in the exam ple for the correction curves namely CT KA712L1S 100 5 A tap 0 4 Q burden and 3A meter reading the secondary voltage is 3 x 0 4
4. Curves Assume a total burden of 0 4 Q Curve 1 with the meter connected to KA712L1S for a 100 5 A ratio and reading 3 A From the appropriate curve the correction factor is 1 024 the corrected secondary current is 3 0 x 1 024 3 072 A and the actual primary current is 3 072 x 100 5 61 4A wo A oa 1 06 O 1 04 1 02 Correction 5 Factor 1 00 98 96 94 1 2 150 5 1 04 Correction 1 02 Factor 1 01 1 2 3 4 5 1 200 5 1 04 D Correction 1 03 D Factor 1 02 1 01 1 00 1 2 3 4 5 250 5 1 00 99 Correction 98 Factor 97 2 96 3 95 1 2 3 4 5 1 00 300 5 99 SE Se Correction 98 W _ Factor 97 a 96 1 2 3 4 5 450 5 1 00 C ti 5 q orrection Factor 29 z 97 2 96 1 2 3 4 5 SECONDARY CURRENT A Figure 4 Legend Burden 0 4 Q Burden 0 21 Q Burden 0 1 Q Correction curves for 450 5 multi ratio bushing current transformer Catalog No KA712L1S 6 1 e SAFETY FOR LIFE 9280 90 5 Figure 5 Correction Factor Correction Factor Correction Factor Correction Factor Correction Factor Correction Factor 1 06 1 04 1 02 1 00 98 96 94 1 05 1 04 1 03 1 02 1 01 1 00 1 04 1 03 1 02 1 01 1 00 1 000 995 990 985 980 1 020 1 0
5. and ANSI guideline C37 61 Quality Standards The Quality System at the Cooper Power Systems Kyle Distribution Switchgear plant is certified to the ISO 9001 standard Description The slip on multi ratio bushing current transformers are especially designed for use with numerous Kyle single and three phase distribution switchgear for load metering at the equipment location The CT is available only as a kit for field installation The kit consists of the epoxy encapsulated current transformer assembly cover assembly nameplate three clamps and washers for attaching the CT to the bushing clamping bolts of the switchgear unit and an eyebolt lifting lug with a palnut if applicable Figure 1 and Table 1 An eyebolt and palnut are supplied with kits KA712L1S KA712L3S and KA712L5S for replacement of the standard fabricated lifting lug to allow additional clearance for the CT on the head Refer to Table 2 for the appropriate application of each kit Slip On Bushing CT Kits KA712L1S KA712L2S KA712L3S and KA712L5S Install Instr and Technical Data INSTALLATION PROCEDURE Refer to the appropriate service information instruction manual for the step by step procedures to remove the recloser from service Refer to the Product Information section of this manual for specific service manual information IMPORTANT Remove the recloser from service and transport it to a clean suitably equipped service center prior to
6. hazardous situation which if not avoided could result in death or serious injury CAUTION Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury CAUTION Indicates a potentially hazardous situ ation which if not avoided may result in equip ment damage only Safety Instructions Following are general caution and warning statements that apply to this equipment Additional statements relat ed to specific tasks and procedures are located through out the manual DANGER Hazardous voltage Contact with hazardous voltage will cause death or severe personal injury Follow all locally approved safety pro cedures when working around high and low voltage lines and equipment 6103 3 WARNING Before installing operating main taining or testing this equipment carefully read and understand the contents of this manual Improper operation handling or maintenance can result in death severe personal injury and equipment damage c101 0 WARNING This equipment is not intended to protect human life Follow all locally approved pro cedures and safety practices when installing or operat ing this equipment Failure to comply can result in death severe personal injury and equipment damage G102 1 WARNING Power distribution equipment must be properly selected for the intended application It must be installed and serviced by competent person n
7. installing the kit WARNING Hazardous voltage De energize the switchgear before installing this kit Follow all locally approved safety practices and procedures when working around high voltage lines and equipment Failure to comply can result in contact with high voltage which will cause death or severe personal injury 12323 CAUTION Follow all locally approved safety practices when lifting and mounting the equip ment Use the tapped lifting provisions provided Lift the load smoothly and do not allow the load to shift Improper lifting can result in equipment damage aizs0 To begin the installation process 1 Bypass trip and de energize the recloser 2 Disconnect the lead wires from the bushings 3 Carefully transport the unit to a suitable service facility Note If the recloser is equipped with extra creepage bushings it may be necessary to remove the bush ings when installing the slip on bushing CT This may require the tank to be dropped CAUTION Equipment damage Refer to the specific switchgear unit maintenance manual for tanking untanking procedures and related instructions Failure to follow these instructions could result in equipment damage or personal injury 7238 0 4 For kit KA712L2 skip Step 4 Continue with Step 5 This step is only applicable to kits KA712L1 KA712L3 and KA712L5 Remove the fabricated lifting lug from the head and substitute the eyebolt lug locking
8. it in position with the palnut 5 Slip the CT over the top of the bushing and position it at the base of the bushing with the terminal box posi tioned outboard and the black epoxy side down 6 Loosen the three bushing clamping bolts and attach the CT by slipping the slotted end of the clamp under the lockwasher while clipping the other end to the CT Figure 3 Position the clamp so the top surface of the CT is at the level of the bushing clamps in order to maintain the BIL rating of the switch gear unit Figure 3 Mounting clamp is clipped to CT assembly and attached under bushing clamping bolt 020071KM For kit KA712L5 position the shorter clamp closest to the eyebolt lifting lug and position the two longer clamps towards the outside of the head casting Note Make sure the insulation coating on the CT end of the clamp is intact and undamaged If bare metal on this end of the bracket touches the head a shorted turn effect is produced which affects the CT output and accuracy CAUTION Equipment Damage Do not attempt to mount the bushing CT by drilling or tapping into the CT ring assembly Perforation of the CT ring can damage the internal windings and cause ingress of moisture Failure to comply can result in equipment damage and misoperation 7298 0 7 Retighten all three bushing clamping bolts evenly a little at a time Refer to Table 3 for the appropriate bushing bolt torque specifications 8 Snap
9. the cover assembly over the terminal connec tors of the CT housing A properly installed CT kit is shown in Figure 2 Connections Connections to the CT are made in the junction box Terminal connections for the various ratios are shown on the inside of the junction box cover The junction box has 7 8 in diameter holes at either end which will accommo date standard 1 2 in conduit fittings or Pyle National DS series cable sealing grips if rubber covered cable is used for the meter leads IMPORTANT Do not remove the shorting lead across CT terminals until external connections are made 1 e SAFETY FOR LIFE 9280 90 5 DIMENSIONS 7 8 Diameter 2 holes either end of terminal box Multi Ratio Multi Ratio Dimension 450 5 600 5 A 6 15 16 7 3 4 B 4 3 4 5 1 2 C 47 8 5 9 32 D 5 5 8 6 1 16 E 9 1 8 9 15 16 TABLE 3 Bushing Bolt Torque Specifications Bushing Bolts Applied Torque RE RX RXE WV27 WV38X GWC GW RV RVE W WE WVE27 WVE38X VRV VW VWV27 VWV38X Model Ft Lbs 3H 6 10 GNSE GN3 GN8VE 6H V6H 6 10 GV 6 10 L E 4E V4L 6 10 V4E VXE 15 VXE 27 VWE VWVE27 VWVE38xX R 10 15 ELECTRICAL DATA AND CHARACTERISTICS The current transformers have four taps to provide the following ratios within a 5 accuracy for conventional metering Multi Ratio 450 5 Catalog Number KA712L1S DC Resistance Current C
10. 15 1 010 1 005 1 000 1 000 995 990 985 980 100 5 200 5 N wo D oa 300 5 m i M wo A oa SECONDARY CURRENT A Legend Burden 0 4 Q Burden 0 21 Q Burden 0 1 Q Correction curves for 600 5 multi ratio bushing current transformer Catalog Numbers KA712L2S KA712L3S and KA712L5S Slip On Bushing CT Kits KA712L1S KA712L2S KA712L3S and KA712L5S Install Instr and Technical Data 20 y Ton 450 5 A D 10 AORTA DS EN E pA HHH 8 H 300 5 A c 6 250 5 B D H a i508 cD 11 w 4 5 C D 8o SC 5 A 4 100 5 B 00 a Z IT S 2 I gt t L 9 1 A DC RESISTANCE fa J m OBAN 0140 0240 6 4 D 3 40T 18T 29T 4 A 3 AF z LI L 4 2 Q H A 4 WINDING NO 14 AWG i AL L e a 01 02 03 04 06 08 1 2 34 681 2 34 6810 SECONDARY EXCITING CURRENT AMPS Figure 6 Typical secondary excitation curves for 450 5 Multi ratio Slip on Bushing Current Transformer Catalog No KA712L1S
11. Reclosers Slip On Bushing CT Kits KA712L1S KA712L2S KA712L3S and KA712L5S Installation Instructions and Technical Data Pi COOPER Power Systems Service Information 9280 90 5 Ct ax Figure 1 020069KM Figure 2 020070KM Multi Ratio Slip On CT kit CT properly installed on bushing TABLE 1 Kit Parts Part Description KA712L1S KA712L2S KA712L3S KA712L5S Note If ei oe Current transformer assembly CT 1 1 1 1 Sele S Or KI Cover assembly nameplate 1 1 1 1 KA712L2S with Clamp 3 3 3 1 short 2 long wiring kit KA895RS Washer 3 3 3 3 Contact your Cooper Eyebolt 1 1 1 Power Systems rep Palnut 1 1 1 resentative for addi tional information TABLE 2 Kit Description and Application Catalog Single Phase Number Kit Description Reclosers Three Phase Reclosers Sectionalizers Switches KA712L1S Multi ratio 450 5 ratio E 4E L 3H 6H V6H GN3 GV TSC VRV Slip on Bushing CT VAL V4E VXE GNSE GN38VE KA712L2S Multi ratio 600 5 ratio DV R RE RX RXE RV RVE see note Slip on Bushing CT W WE WV27 WV38X WVE27 GW GWC F WVE38X VW VWE VWV27 VWV38X VWVE27 VWVE38X KA712L3S Multi ratio 600 5 ratio D Slip on Bushing CT KA712L5S Multi ratio 600 5 ratio VXE Slip on Bushing CT Not applicable above Serial No 1000 Not applicable below Serial No 3733 Installi
12. el who have been trained and understand proper safe ty procedures These instructions are written for such personnel and are not a substitute for adequate training and experience in safety procedures Failure to proper ly select install or maintain power distribution equip ment can result in death severe personal injury and equipment damage G122 2 1 e SAFETY FOR LIFE 5280 90 5 PRODUCT INFORMATION Introduction Service Information S280 90 5 provides installation instructions and technical data for the Kyle KA712L1S KA712L2S KA712L3S and KA712L5S Slip On Bushing CT kits Note Users intending to install the Slip On Bushing CT kit on all three phases of a three phase recloser must order three kits one kit per phase Note If desired connect set of 3 BCTs for kit KA712L2S with wiring kit KA895RS Contact your Cooper Power Systems representative for additional information Read This Manual First Read and understand the contents of this manual and follow all locally approved procedures and safety prac tices before installing or operating this equipment Additional Information These instructions cannot cover all details or variations in the equipment procedures or process described nor provide directions for meeting every possible contin gency during installation operation or maintenance For additional information contact your Cooper Power Systems representative
13. forts of all Cooper Power Systems employees involved in product design manufacture marketing and service We strongly urge that you always follow all locally approved safety procedures and safety instructions when working around high voltage lines and equipment and support our Safety For Life mission SAFETY INFORMATION The instructions in this manual are not intended as a sub stitute for proper training or adequate experience in the safe operation of the equipment described Only compe tent technicians who are familiar with this equipment should install operate and service it A competent technician has these qualifications e Is thoroughly familiar with these instructions e Is trained in industry accepted high and low voltage safe operating practices and procedures e s trained and authorized to energize de energize clear and ground power distribution equipment e Is trained in the care and use of protective equipment such as flash clothing safety glasses face shield hard hat rubber gloves hotstick etc Following is important safety information For safe instal lation and operation of this equipment be sure to read and understand all cautions and warnings Hazard Statement Definitions This manual may contain four types of hazard statements DANGER Indicates an imminently haz ardous situation which if not avoided will result in death or serious injury WARNING Indicates a potentially
14. ng this kit on all three phases of a three phase recloser requires three kits one kit for each phase Contents Safety Information cccccceeeeeeteeeeeteeeeeeeees 2 Quality Standards 0 ccccceeeeeeeeeeeeeeeeeeeeeeeneeeee 3 Hazard Statement Definitions cece 2 DOSEN PUOM sreo E A E 3 Safety Instructions cccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 2 Installation Procedure eee 4 Product Information 0 ccccccceeeesteteeeeeeeeeees 3 ConnectionS c ce eeeceeseceseeeeeeeeeseenaeeeeessseeeeeeeeaees 4 IAMMKOGUCUON siciesccecaseescteeed tvesaraversureiseetbadeascesteeeectezeds 3 DIMENSIONS i iiiar ieena aeaa DEEA 5 Acceptance and Initial Inspection s 3 Electrical Data and Characteristics 5 Handling and Storage eseese 3 Correction Curves ssseeeeeeereriieerrrerirerrrrereeees 6 ANSI Standards sssciesccsssticcviacversetiasiiecisinetiiaaaens 3 CT Excitation Curve cccccccceessseeeeessneeeeeeeennees 8 June 2004 Supersedes 2 03 1 Printed in USA Slip On Bushing CT Kits KA712L1S KA712L2S KA712L3S and KA712L5S Install Instr and Technical Data SAFETY FOR LIFE hich Cooper Power Systems products meet or exceed all applicable industry standards relating to product safety We actively promote safe practices in the use and maintenance of our products through our service literature instructional training programs and the continuous ef
15. onnection 034 014Q 024Q Ratio Terminals Yorl at zor 1005 BC 150 5 C D 200 5 A B A c 250 5 B D B D 300 5 AC Winding NO 14 AWG 450 5 A D Multi Ratio 600 5 Catalog Numbers KA712L2S KA712L3S and KA712L5S DC Resistance Current Connection 0472 0709 021Q Ratio Terminals 40oT 60T 18T 100 5 C D 200 5 A B 300 5 B C A c 400 5 B D B D 5005 AC Winding NO 16 AWG 600 5 A D All CTs can carry 150 of rated secondary current continuously Note Physical construction requires an irregular turns ratio for some windings to provide 5 accuracy at all ratios Slip On Bushing CT Kits KA712L1S KA712L2S KA712L3S and KA712L5S Install Instr and Technical Data Correction Curves If accuracies greater than the nominal 5 are desired typical correction curves for the CTs at all ratios are shown in Figures 4 and 5 The correction curves are drawn for three different transformer burdens Curve 1 0 4 Q impedance Curve 2 0 21 Q impedance Curve 3 0 1 Q impedance The 0 21 Q burden represents the impedance of a Sangamo Type ADS meter with a 5 A scale and instanta neous elements The 0 4 Q burden represents the impedance of this same meter with a total of 40 feet of No 16 AWG conductor leads meter 20 feet from CT The 0 1 Q burden curves are included to allow for inter polation for other meter loads How to Use the Correction
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