WBPWD/EE-II/KNHED/NIQ-46/22-23

Amount

S & Delivery of Numeric over current DRAWOUT, NON DIRECTIONAL Relay (Make Siemens) having following specifications/features INPUT 1/5A, Auxiliary voltage 100 to 230V AC & 24-250V DC Protection:- Compact O/C protection Time delay O/C protection Compact E/F protection Restricted E/F protection Thermal O/L Over voltage & under voltage protection under & over frequency protection supervision of CB failure etc. Communication Protocol:- Front USB, Rear RS 485, Rear option for two electrical or two optical ethernet a. cat no7SR 1103 (at MC Hub sub-station incomer HT breaker)

b. cat no7SR 100 (at MC Hub sub-station2 no outgoing HT breaker)

Dismentling the existing defective numerical relay Make CG, & submit it to the dpt store.incl. Installation, Testing, Commssioning of the new relay along with desired parameter set & all complete as per direction of EIC and upto the stability of the entire system upto the satisfactory of EIC

SSB Sub-Station Sub Head A:- HT panel (5 Panel Breaker) Overall Servicing, cleaning and testing of 5 nos. HT Breaker. Recommissioning of HT panel to make both 1600 KVA transformer running (As out of two one no is ideal at present) IR value measurement of 5 KV megger. Checking of Indication circuit and spring charging mechanism. Operation of Breaker both electrical and mechanical. Tripping test confirmation by Relay. Cleaning, servicing and tightness checking of HT BUS-BAR.Cleaning, servicing and testing of PT. 5 panel HT breaker (at SSB sub-station)(Two nos incomer(out of which one spare) +two nos outgoing for transformers+one no bus coupler)

Sub Head B:- Special testing to prevent I2R loss of HT Ckt. Breaker. i) Contact resistance measurement by milli volt drop method by injecting 100A DC. ii)Primary injection had to be done to confirm the CT Ckt., Relay Ckt. Indication Ckt., Alarm Ckt., Tripping Ckt., Switchgear Ckt., after major modification and replacement of damaged control wiring. iii) Repairing of Ckt. Breaker to minimize value of milli volt drop to prevent heating problem

Sub Head: Major modification of control Ckt. to make CT and Relay connection as per drawing. Enable all binary input and output primary then artificial fault simulation done to prevent maloperation of Ckt. Breaker.

WTI connection done and both Alarm and tripping testing successfully.

All setting given as per CT ratio.

Sub Head C:- Servicing of 2nos 1600kVA Transformers Transformer:- Opening the Dry Type Transformer And reassemble the same after maintenance work including Cleaning heating as per direction of EIC. Cleaning dust & sludge from Transformer body including tits bits work and necy.testing work by special H.T. technician and labour including following tests with co's own testing set up

Sub Head D:- Testing of Transformers Following tests are to be performed 1. IR value measurement of HT and LT side by 5 KV and 1 KV motorized megger. 2. Polarization Index value measurement. 3. Magnetizing current checking. 4. Magnetic balance and core balance checking. 5. Ratio checking of Transformer.

Sub Head E:- Servicing of LT panels Overall servicing & cleaning, removal of moisture dust dirt etc of LT panel part by part with following necy steps 1. IR value measurement of LT breaker by 1KV megger 2. Servicing, cleaning and testing, tightness checking of entire LT bus bar. 3. Checking of indication circuit and spring charging mechanism. 4. Operation of breaker both electrical and mechanical. AC plant Panel e. 1250A ACB EDO type (2nos incomer +1no buscoupler) Temporary LT redundant panel f. 1000A ACB (I/C 2nos & 1no buscoupler)----3nos

Sub Head F:- Panel related items for replacement with defective one S & F digital multifunction meter (L&T, MFM5010 LED meter CI 1.0 with RS485, cat no-- WL501011OOOO)

S&F LED indicator lamps (Red,yellow,blue,green) (Make L&T)

MCH Sub-Station i) HT 3 PANEL breaker ii) Servicing, cleaning and testing of 3 nos. HT Breaker. iii) Re-commissioning of HT panel. iv) 3 panel HT Breaker. v) IR value measurement of 5 KV megger. vi) Checking of Indication circuit and spring charging mechanism. vii) Operation of Breaker both electrical and mechanical. viii) Tripping test confirmation by Relay. ix) Cleaning, servicing and tightness checking of HT BUS-BAR. x) Cleaning, servicing and testing of PT.

Special testing to prevent I2R loss of HT Ckt. Breaker. i) Contact resistance measurement by milli volt drop method by injecting 100A DC. ii) Primary injection had to be done to confirm the CT Ckt., Relay Ckt. Indication Ckt., Alarm Ckt., Tripping Ckt., Switchgear Ckt., after major modification and replacement of damaged control wiring. iii) Repairing of Ckt. Breaker to minimize value of milli volt drop to prevent heating problem

Major modification of control Ckt. to make CT and Relay connection as per drawing. i) Enable all binary input and output primary then artificial fault simulation done to prevent maloperation of Ckt. Breaker. ii) WTI connection done and both Alarm and tripping testing successfully. iii) All setting given as per CT ratio.

Transformer 500KVA i) dry type Transformer and close after maintenance work including cleaning heating as per direction of EIC. Cleaning dust and Sludge from Transformer body including tits bits work and necy. Testing work by special HT technician and labour including flowing test with co’own testing set up. ii) IR value measurement of HT and LT side by 5KV and 1 KV motorized megger. iii) Tripping test confirmation of WTI. iv) All tightness checking of Transformer.

Special testing of Transformer. i) Polarization Index value measurement. ii)Magnetizing current checking. iii)Magnetizing balance and core balance checking. iv)Ratio checking of Transformer. v)6 KV Dry type Dyn 11

Main LT PANEL i)Servicing, cleaning and testing of LT Breaker.- 2nos. ii)Overall servicing & cleaning, removal of moisture dust dirt etc. of LT panel part with following necy. Steps . iii)IR value measurement of LT Breaker by 1 KV megger. iv)Servicing, cleaning and testing, tightness checking of entire LT bus-bar. v)Checking of Indication circuit and spring charging mechanism. vi)Operation of Breaker both electrical and mechanical. vii)Setting of all multifunction meters ( make schnieder) for all incoming and outgoing switches as per direction of EIC. viii) Servicing, cleaning and testing of AMF panel.

Supply of Schneider make multifunction meter EM6400NG, Class accuracy Cl1.0, RS485 port (METSEEM6400NGRSCL1).

Supply of 3M make HT tape.

Less Cost of dismantled materials of Rs.25,000/-

Terms&conditions: All tests mentioned above done by agency as per proper guidline given by EIC with co's own instruments,tools and tackles.Copy of calibration certificate of different instruments must be provided prior to any measurement to the EIC. Test results must be registered and provided by the agency as per proper proforma and guidline given by the EIC and same report should be provided in quadraplicate to the dpt.

Defect Labilities period for 01 year from the date of completion of work. (Rate are included all taxes and duties)

THREE-D ELECTRIC PROJECT SERVICES PRIVATE LIMITED

MAS CONSULTANCY