ITE K-3000 Instructions Manual Download | Manualshive

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Courtesy of NationalSwitchgear.com

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Summary of Contents for K-3000

Page 1: ... 9 1 7 4 ISSUE 0 LOW VOLTAGE POWER CIRCUIT BREAKERS INSTRUCTIONS TYPE K 3000 K 4000 K 3000S K 4000S CIRCUIT BREAKERS Stationary Switchboard Mounted and Lhawout Mounted i 1 Courtesy of NationalSwitchgear com ...

Page 2: ...urimi ll Qevjces Control Relay Auxiliary Switches Undervoltage Trip Device Installation Initial Testing and Removal Installation Checking Circuit Bieuker Operation Mtlll Kil OptfUlltOM Circuit Breaker Removal Orawout Typei Maintenance and Adjustments Safety Notes Periodic Maintenance Inspection Arc Chutes Insulation Structure Contacts Contact Pitting Contact Pressure Check and Adjustmo Manual Slow...

Page 3: ...e of the breaker Thus any long tin e f i4 setting t xre dim tOD V of the fmine sire is o be user only foi coordination not tor currying increased continuous current RECEIVING AND STORAGE Immediately upon receipt ot the circuit breaker CA amine the cartons to determine if any damage or loss was sustained during transit If injury or rough handling is evident file a damage claim at once with the carr...

Page 4: ...t Switch M Spring Retainer Bracket 12 Manual Charge Handle 13 Racking Crank 14 Closing Spring Charge Indicator 15 Orawout Lever 16 Racking Cam Rollers 17 Racking Crank Opening 18 Wheels 19 Shutter Lock Screw Inserted in Shutter 20 Lifting Yoke 21 Closing Spring Charging Motor 22 tleciiical Close Button 23 Locking Hasp 24 Auxiliary Switch 25 Nameplate 26 Plate Not Visible in This View Fig 1 Typical...

Page 5: ...se the circuit breaker contacts Padlocking Device Figure I It All K line firci it breakers fire equipped with c mi of p H lio k I fig th H Ult free position This is accomplished by the use if n locking plate to maintain the manual tiip button m n tripping direction when the locking plate is field f o r ward by one or more padlocks To obtain the condi tion for padlocking the circuit breaker in the ...

Page 6: ...long time delay and shmt time delay flipping Independent adjustment of both pickup and time delay is provided f o r both types of flipping The nomenlafe of this device shows the sellings which are available For information on the time current characteristics of this device request a copy of TD 6694 C See Table I for complete list of Electro Mechan ical overcurrent trip devices available nrf rjf V ...

Page 7: ...00 NOTE 00 MM1 long MIMR Hemnnt has mm Mm lie t iy iiiUni o n l y A l l HIIMM l o n g 1 HUB Pirn I inti d e l a y e l e m e n t s h a v e t h r e e t i m e lie I ay hands TABLE IA STAN0AR0 SOLID STATE OVERCURRENT TRIP DEVICES T r i p E l emeuI T i m e Cu r r en t rii a r nr t r o 11 Oil J V H O v e i c u r r e n t O E V I C B Type Long f i trie Sho i t T i me Iit I in l nifiini s G i iniifl III ti...

Page 8: ... the close contacts first released 5 la d l U g t dir U H I U l 4 I 11 j u 11 M l Itie lutninotif trip indhnlcu Ifujian I than will pr frude f cjin Itie trout plate when the breaker is tupped by the UIKICI volluytr devH e See Table 4 page 16 for ele tmul c hcncn tenstir s I hr a i 1 jinny Wit lies hi miAilun switches I l i f igure if tunlotn the i 1 b contacts Figure and cue furnished in ot I tact...

Page 9: ...rawout Type See Figure I The circuit breaker must be in the OPEN position the racking crank 1 3 when inserted in opening 1 7 is rotated counterclockwise until the racking cam roller 1 6 is rotated down inlo a 45 angle and the motor disconnect switch 1 0 for electrically operated circuit breakers is in the OFF position NOTE Lever 1 5 must be pushed down to permit the rotation of crank M 3 Open omfK...

Page 10: ...state control assembly so that the control assembly con be mover to peimit removal of the arc chute a Remove two arc chute mounting screws 3 Figure 1 and retainer molding 2 Lift arc chute I up and draw out b Inspect for breakage to side moldings center moldings arc plates and liner plates Check for pres ence of foreign particles such as chips of moldings and metal MAINTENANCE AND ADJUSTMENTS INSUL...

Page 11: ... Ai T c Slow close the breaker see Manual Slow Close to Check Contact Pressure below until the first arcing contact of the three poles just touches and hold in this position Adjust the other two poles screw I unlil the leading arcing contorts of each pole make simul taneously within 1 3 2 inch f ujll 11 Of k IfW i Fig 3A Contact Pressure Check and Adjustment Ml1i JN MANUAL SLOW CLOSE TO CHECK CONT...

Page 12: ...he lever pin drops into the pin hole Long Time Delay Band Adjustment Figure 10 OD Types 400 500 600 To reset tong time delay to a different bond First loosen the hn king screw for long lime delay adjustment ij i ilie adjust i v iii 11 u n t i l oupijj itiiiii i i uii j IUMI HIM point l l linos up with the desired line marked Mini mum Time Instantaneous time or Maximum Time M l I Reiighren the luck...

Page 13: ...requires no lubrication during its normal service life However if the ur ose should become contaminated or if parts are replcred any re lubrication should be done with NO OX ID or ANDEROl grease as applicable NOTES 1 Do not use NO OX ID grease an main and arcing contact uifares 2 It is recommended that the primary disconnects be maintained by imtewmcj the NO OX ID grease during maintenance pmindt ...

Page 14: ...structions regarding replacement of those part assemblies recom mended that are not obvious are also available if ordered u vaunts votrngr nnn I t r t I ranqe teh r la fable bebj v Iiippitt i For undervoltaqe trip devices standard voltages orrH operating data refer to Table 4 below Current values are average steady state values Momentary inrush currents for all charging motors and ac coils are app...

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