e-NIT No.23 / EnM (WEST)/ 2020-21, Item No.19

Dismantling & changing of following parts in LT panel installed at Subhash Nagar BPS by removing of defective parts & other parts i.e. indicating lights, amp. Meter etc. dismantling of all incoming & outgoing connection.

MCB Single pole 6 Amp. Make L&T/Siemens/Schineder

MCB Triple pole 63Amp. Make L&T/Siemens/Schineder

Switch disconnector fuse unit open execution with fuse links, of rating 125 Ampere, triple pole, & HRC Fuse. Make: C&S / L&T.

DIN HRC fuse links of 250 amp current rating. Make: C&S / L&T.

MCCB 415 V TP 36 KA 63Amp. Make: L&T/Schineder/L&T/GE/Siemens/ALL DJB Approved.

Protection relays having sensitive earth fault , over current, S/C protection with following features-High set elements, highly immune to harmonics, both 1A & 5A CT input in one relay, 6 output contacts, Non-volatile memory for trip indication, self monitoring facility, status indication LED display & sealable front cover to prevent unauthorized access Make: L&T

Digital Amp. Meter. –Make AE/UE/L&T

Digital Volt Meter 0-500V –Make AE/UE/L&T

Auxiliary Terminal block

U/V release 220V

Arcing contact

Indicating lights LED type RYB & On/off Make : L&T /Havells/SG

Current Transformer 800/5. Make AE /Advance

Current Transformer 1200/5. Make AE /Advance

Making of outgoing/incoming bus bar links for main & cable connection duly sleeve with heat shrinkable PVC sleeve

Bus bar Aluminum of electrolytic grade conductivity covered with heat shrinkable PVC sleeve throughout in red, yellow & blue color to identify three phases & black for neutral current carrying capacity 1000Amp. For incoming from transformer. The bus-bar support insulator made of non-deteriorating, vermin proof, non hygroscopic materials such as SMC/DMC.

Fixing of the IDMT O/C E/F relay complete with wiring and setting of protections parameters as per site requirements.

Servicing, over hauling of complete ACB of various rating installed as incomer & bus coupler (1250Amp.)& out going/spare 800Amp.(3Nos.) in panel, removal of old grease and re-greasing of all movable parts with recommended grease, setting of tripping mechanism ,re-wiring of under voltage coil ,changing of plunger of UV assembly complete servicing of ACB Fixing of above components in place of defective components as required complete with control wiring, fixing of amp. Meter, indicating lights etc. & re-installation of A.C.B. in existing LT panel complete with all incoming & out going cable connection with thimbling, setting of relay parameters for proper tripping in case of any fault..

Changing of cable terminal block, current transformer after dismantling of bus bar, fitting of CT as suitability in panel for proper functioning of amp. Meter

Insulation on bus bar of complete panel PVC Sleeve /tape as required replacement of nut bolt, support insulator as required after cleaning & de-carbonizing of bus bar.

Testing & commissioning of panel & allied accessories as per required parameters with relevant IS .testing of the panel prior to switching on as follow i) Continuity and earth testing ii) Meggaring of all equipments for phase to phase, neutral to body, neutral to earth and phase to earth. iii) checking for all tightness of nut and bolts iv) Alignments of doors etc. v) Interlocking tests. All function tests

RRPN GROUP OF SOLUTIONS

Premier Engineering Company

SANJAY SALES CORPORATION