IISER-K/IWD/Elect/22-23/11

Amount

Supply ,installation , testing & commissioning of Siemens make below mentioned 33 KV 1250 Amp HT VCB in existing 33 kv HT Switchboard at ESS-I by replacing the old existing VCB from the feeder cubicle without disturbing any present multifunctional activities of this feeder i,e, there will be no mismatch of sequential operation of dedicated SR relay for this particular feeder no operational malfunctioning of associate Relays & metering parameters already exist in this cubicle & also new VCB will conduct same as the previous one after successful commissioning of new one. Model No:-8BK80-3AH3 Rated Voltage (Ur) -36KV, One Minute Power frequency withstanding voltage(rms)-70 kv, 1.2/50 microsecond lightening impulse withstand voltage-170 kvp, Rated Current(Ir)-1250A, Rated frequency(fr)-50Hz, Short time withstand current(3 sec) 26.3 KA Short circuit Breaking current-26.3 Ka, Rated making current-65.75 KA, Rated operating sequence-O-0.3 sec-CO-3 min-CO, single capacitor bank breaking current-400A, Guaranteed number of operation for vacuum interrupter at rated current-30,000, Guarantees number of operation for drive mechanism-10,000, Type of operating mechanism-Motor Spring Reserve Drive(M.S.R.D.) Rating of associate current Transformer, core-1-- CTR-200-100/5A,cl-5P10,100 VA,Core-2- CTR-100/5A,cl-1.0,15VA, Coil voltage for Shunt trip-24v DC as per enclosed Nameplate attached

Supply ,installation, testing & commissioning of Siemens make below mentioned 11 KV 800 Amp HT VCB in existing 11 kv HT Switchboard at ESS-I by replacing the old existing VCB from the feeder cubicle without disturbing any present multifunctional activities of this feeder, i,e, there will be no mismatch of sequential operation of dedicated SR relay for this particular feeder, no operational malfunction of associate Relays & metering parameters already exist in this cubicle & also new VCB will conduct same as the previous one after successful commissioning of new one Model No:-8BK88-3AHO 104 IZ Rated Voltage (Ur) -12KV, One Minute Power frequency withstanding voltage(rms)-70 kv, 1.2/50 microsecond lightening impulse withstand voltage-170 kvp, Rated Current(Ir)-1250A, Rated frequency(fr)-50Hz, Short time withstand current(3 sec) 26.3 KA Short circuit Breaking current-26.3 Ka,Rated making current-65.75 KA, Rated operating sequence-O-0.3 sec-CO-3 min-CO, single capacitor bank breaking current-400A, Guaranteed number of operation for vvaccum interrupter at rated current-30,000, Guarantees number of operation for drive mechanism-10,000, Type of operating mechanism-Motor Spring Reserve Drive(M.S.R.D.) Rating of associate current Transformer, core-1-- CTR-800-400/5A,cl-5P10,15 VA, Core-2- CTR-800-400/5A,cl-1.0,15VA, Coil voltage for Shunt trip-24v DC as per enclosed Nameplate attached

Thermostat rod type 50-800c with Pair of Heater 80 Watt Strip Type

Double Bit Key Lock Bar Assembly(as per attached Photo)

Door Interlock "L" Assembly for 11 kv(as per attached Photo)

SITC of Breaker Control Switch (TNC Switch) Kaycee / Switron Make 25Amp same as Model No- SBC 25P-244R as per following TDS:- Thermal Current : 32 Amps Continuous Current : 25 Amps Operating Voltage AC/DC : 660 Volts High Voltage Test : 2.5 KV (RMS) Ambient Temperature : 55 Deg C. Frequency Of Operation : 300 Cycles / Hour Electrical Life : 100,000 Operations Mechanical Life : 200, 000 Operations Rated Short time with Stand Current : 300 Amps/Sec Rated Short Circuit Making Capacity : 419 Amps.

Castle Lock "A" Mark(as per attached Photo)

Rack In/Out Drive Spindle/Shaft Type 3AH0104IZ 800 Amps 26.3 KA

Trip Coil and Closing Coil 24V DC. INSPROS,2.65Ω

Aux. Switch for VCB 12 NO+12 NC

11KV , 3.15Amp, HRC PT Fuse , Bussman-Eaton Power / Phonex Make, 12ABCNA3-15/B1

Indication Lamp ON/OFF/PT/Auto Trip ( R , Y, B, A and G )

Nut & Bolt 8/15 Full Thread

Bolt 8/55 Half Thread with washer

SITC of Protection Relay with O/C & E/F Relay, Differential protection ,o/v & E/V protection, restricted Earth fault protection, type 7SR2422-2AA11-0BA0/BB,DUOBOAS-M,In=1/5A.fn- 50/60 Hz,Vx-30/220V,BI-19 V,Confg-2662H80001, for 33 kv All the parameters and protection activities of Siemens make Multifunctional controller ( SR type relay for 33 kv voltage grade) is required to be energized and activated according to the site requirement.

SITC of Protection Relay with O/C & E/F Relay, Differential protection ,o/v & E/V protection, restricted Earth fault protection, type 7SR1206-2JA, ARGUS, 1/5AMP for 11 kv All the parameters and protection activities of Siemens make Multifunctional controller ( SR type relay for 11 kv voltage grade) is required to be energized and activated according to the site requirement.

Hari Om Udyog