MAINT/REPAIR OF INCOMER 33 KV EXTRA HIGH TENSION BREAKER ALONGWITH 11 KV INCOMER BREAKER SYSTEM INCLUDING PROGRAMMABLE WITH NECESSARY PROTECTION NECESSARY FOR IMPROVEMENT INCLUDING ALLIED SYSTEM UNDER GE (AF) ADM AREA, AGRA

Servicing and checking of EXISITING 11 KV Breakers 02 Numbers INCOMERs any make and type make VCB with blower, cleaning of existing HT panel inside, outside with tighting of all bus bar, nut & bolt, alignment, adjustment of gaps between phase to phase as per manufacturer recommend action Checking and tightening of control wiring circuit as charging motor closing coil and tripping coil circuit, Manually tripping testing of VCB, Cleaning, removal of dust and dirt to male/Female contacts, greasing & lubrication all moving fixed part including replacement of minor parts such as spring, washers etc. for smooth mechanical operation etc. complete with testing commissioning as required. Servicing, Calibration, testing of ( one earth fault one over current) with secondary injection testing of 11 KV /VCB, Operational testing through relay front pad as well as push button, Testing/ Calibration of safety relays, Tripping testing of VCB through over current and earth fault relay,testing and servicing of the existing 11 kV VCB panel, including high pot tests and submission of test certificates with proper sealing. Primary injection testing to verify tripping functionality. Opening of HT panel, removal of moisture from busbars, insulators, HT cable box, and heating of P.T. and C.T. chambers. Relay settings to be checked and configured as per the protection scheme. During breaker racking, inspection of jaw-type male/female contacts connected to the busbar is included—cleaning or replacement shall be done if found carbonized or damaged. Final insulation resistance (megger) testing of all components to be completed as per standard procedures and safety norms. Note : Minor spare part are deemed to be included in quoted rates for making functional & major spare may be pay separety as mentioned below.

Servicing and checking of EXISITING 33 KV Breakers along with 33kV CR Panel indoor type at MALPURA MRS any make and type make VCB with blower, cleaning of existing HT panel inside, outside with tighting of all bus bar, nut & bolt, alignment, adjustment of gaps between phase to phase as per manufacturer recommended, Checking and tightening of control wiring circuit as charging motor closing coil and tripping coil circuit, Manually tripping testing of VCB, Cleaning, removal of dust and dirt to male/Female contacts, greasing & lubrication all moving fixed part including replacement of minor parts such as spring, washers etc. for smooth mechanical operation etc. complete with testing commissioning as required. Servicing, Calibration, testing of ( one earth fault one over current) with secondary injection testing of 33 KV /VCB, Operational testing through relay front pad as well as push button, Testing/ Calibration of safety relays, Tripping testing of VCB through over current and earth fault relay,testing and servicing of the existing 33 kV VCB panel, including high pot tests and submission of test certificates with proper sealing. Primary injection testing to verify tripping functionality. Opening of HT panel, removal of moisture from busbars, insulators, HT cable box, and heating of P.T. and C.T. chambers. Relay settings to be checked and configured as per the protection scheme. During breaker racking, inspection of jaw-type male/female contacts connected to the busbar is included—cleaning or replacement shall be done if found carbonized or damaged. Final insulation resistance (megger) testing of all components to be completed as per standard procedures and safety norms. Note : Minor spare part are deemed to be included in quoted rates for making functional & major spare may be pay separety as mentioned below.

M&L for calibration of HT VCB indoor type 11 KV & 33kV CR Panel VCB with calibration of all protective devices or relay according to load, minor repair to wiring connector block etc all as specified and directed by E-in-Charge.Note:- (i) Calibration is to be done by auth service person.

Dismantling of Old unserviceable power back up system & Supply, testing, commissioning ripple free power supply unit with First Stage conversion: Power factor correction along with H.F. filter and input AC voltage rectification and conversion in high voltage DC. ii) Second Stage Conversion: Rectified high voltage DC is stored in capacitors. High voltage DC is then converted in to a very high frequency AC (20 KHz and higher). Conversion of high voltage DC to high frequency AC is achieved by means of very powerful and ultra-fast semiconductor switching devices. High frequency AC is stepped down to the required level by means of a small high frequency transformer with following specifications OUTPUT POWER FACTOR –O.8 LAG. OUTPUT FREQUENCY – 50 HZ+/-0.5% . WAVE FORM – 20 MILLI SEC PURE SINE WAVE . RESPONSE TRANSIENT - <8% ON 90% LOAD CREST FACTOR – 3:1 . DISPLAY – SUPPLY ON, BATTARY HIGH/LOW, OVERLOAD, OUTPUT HIGH/LOW, CHARGING ON, MAINS LOW/HIGH, BYEPASS, FAULT, OVERHEAT PROTECTION-OUTPUT OVERVOLTAGE,OUTPUT UNDER VOLTAGE, OVERLOAD, SHORT CIRCUIT OVERLOAD CAPACITY- 110%- 08 MIN, 125%- 90 SEC,150%- 45 SEC LIQUID CRYSTAL DISPLAY- INPUT VOLTAGE/FREQUENCY. OUTPUT VOLTAGE/FREQUENCY,LOAD%,CHARGING CURRENT, TRANSFER TIME/ SWITCHING TIME -0 MILLI SEC SWITCHING MODE – WITHOUT ANY SWITCHGEAR HUMIDITY – 5% T0 95% NON CONDENCED. Stepped down AC is rectified by ultra-high-speed diodes to DC of desired voltage and filtered by means of high frequency filters and pure DC voltage is stored in capacitors Make ABB/Schneider/Siemens approved by GE minimum ISO 9001:2015 Certified . Note :- Necessary test certificates to be approved by Engg-in-Charge first before execution at site

Dismantling of old AC to DC converter any type existing at site and replacement with multiple output ports on line and replacing with new digital converter power supply unit switch mode power supply unit Voltage influence ≤0.5% / V Temperature influence: ≤0.01% / °C Ambient conditions Ambient temperature: -25 to +55°C Storage temperature: -25 to +70°C Transport temperature: -25 to +70°C Relative humidity: 15% to 85% Double Conversion On Line. • Continuous Voltage & Frequency Regulation • High Power Density • Wide Input Voltage Range • Input Supply voltage 360- 450 volts three phase input Frequency regulation range, AC input 47-55 Hz Supply voltage fail. bridging time at 100 % load 10 ms min. Max. deviation of output with static load change ± 2.5 % Max. deviation of output with dyn. load change 5 % (load change 10-90 %) Short-circuit protection overcurrent switch-off with automatic restart Overload protection over temperature and overcurrent switch-off Reset after thermal overload switch-off disconnection of AC input voltage 30 s min. Standards Isolation testing 2.5 kV AC routine test, overvoltage category , degree of pollution Electromagnetic compatibility Input current harmonics no limitation Efficiency at nom. load approx. 79-84 % Indication of operational states green LED, output voltage OK Operating temperature 0 °C ... +55 °C Storage temperature -25 °C ... +75 °C. Necessary test certificates to be approved by Engg-in-Charge first before execution at site .

Disconnecting of existing old battery bank set up User Replaceable, Batteries type SMF back up not less than 08 Hr at full load considering KW Output power a) Open circuit voltage b) Full load voltage c) Full load current d) Current Resolution e) Mode of operation 360V DC 40 A (Current should be adjustable from 0.1A to 40 A with resolution of 1A) 1 A Constant current (Independent of the load voltage) mode Cooling water temperature, water flow (if water cooling is used) b) Stack temperature c) Over voltage d) Over current e) Single phasing f) Emergency Off g) Panel door All Sensors’ NO/NC input will be provided by IPR for interlock purpose except overvoltage, over current, single phasing, emergency off and panel door interlocks. All functioning of these interlocks using dummy inputs of 0 to 5 V /NO /NC as applicable. The interlocks operation should be implemented using PLC (Programmable Logic Control) and HMI (Human Machine Interface). Calibration certificate of all sensors and meters in the power supply unit will have to be submitted along with the delivery of the power supply. Necessary test certificates to be approved by Engg-in-Charge first before execution at site

Dismantling of old battery bank and S & F of in replacement of Battery Backup 360 Volts 42 AH system with relays AC & DC operatable with extra relaying schemes attached to the equipment including part of the network with their own relaying system. Equipped with backup relay’s to operate in any failure of tripping of circuit breaker due to main relays capable to sustain Mechanical defect of moving parts of the main relay, Failure of DC power supply to the relay, Failure of tripping pulse to the contactor/ MCCB from relay, Failure of current or voltage to the relay from existing circuits etc.Equipeed with another line of protection as back up relaying. essentially have everything separate from main relaying scheme. just because backup relay must not fail to operate in the event of failure of main relays. in spite disconnect main relays from the system for preventive maintenance or trouble shootings. Because of presence of backup relays, no interruption has to take place for any equipment or circuit. During this time back up protection scheme takes care of the protection of the system. As the back relaying is second line of protection it must be slow in action than main relay so that it can only be operated when the main relaying scheme of the system/equipment fails. Make SIEMENS/ABB/ Exide . Necessary test certificates to be approved by Engg-in-Charge first before execution at site .

Dismentaling of old unservicable fuse kit, kat , existing IDMT O/C & E/F relays, burnt contactores replacement with new microprocessor type solid state electronic ON LOAD protection system with Plug Setting Multiplier of Relay, Time Setting Multiplier of Relay, Time vs. PSM Curve settings,Calculation of Relay Operation Time,1. Current setting. 2. Fault current level. 3. Ratio of current transformer. 4. Time / PSM curve. 5. Time setting. Output impedance shall be 3.0 to 5.0 percent,The card shall be manufactured such that it will maintain electrical properties, even under severe overload, under/over voltage and under/over frequency conditions. Input correction range shall be -30% to +20% of nominal input voltage. The system design shall be capable of operating at an input frequency range of -15% to +10% of nominal, without clearing protective devices or causing component failure within the Microprocessor Card. Upon turn on or restart, the output of the Microprocessor Card shall not exceed the specified output regulation limits. if the input voltage or frequency exceeds programmable minimum or maximum set points for a programmable time period (factory set for 10 seconds), the Microprocessor Card shall electronically shut off. When electrical parameters are back within acceptable limits for a programmable time period (factory set for 60 seconds), the Microprocessor Card shall automatically restart to provide conditioned power to the load. If the input parameters are within acceptable limits, but the output voltage is outside of acceptable programmed limits, the Microprocessor Card shall electronically shut off and require a manual restart. The Microprocessor Card shall be capable of operating at 100% rated load capacity continuously, 200% rated load for 10 seconds, 500% rated load for 1 second and 1000% rated load for 1 cycle. Operating efficiency shall be a minimum of 96%, typical at full load. Transverse-mode noise attenuation shall be 3dB down at 1000Hz and 40dB down per decade to below 50dB with a resistive load. Common-mode noise attenuation shall be 140dB or greater.

Contd....from item No 10 The Microprocessor Card shall respond to any line voltage variation in 1/2 cycle while operating linear or non-linear loads, with a load power factor of 0.60 of unity. Peak detection of the voltage sine wave shall not be permitted to avoid inaccurate tap switching due to input voltage distortion. Line Voltage Regulation and Correction Time: Output regulation shall be +5%, -6%, given an input voltage variation of -30% to +30% for nominal, when within +/-5% of the nominal frequency. The Microprocessor Card output voltage shall be corrected to within +5%, -6% or less within 1 cycle per tap for an under voltage condition. For an over voltage condition, the output shall correct within 1 cycle directly to the appropriate tap without stair-casing intermediate taps. Typical correction time shall be 1 to 2 cycles. Load Regulation: No load to full load regulation shall be 3% typical under linear loading. Note: The Microprocessor Card shall be adjusted so that the combination of line voltage regulation and linear load regulation results in a maximum output voltage variation of +7% to -8% from nominal, when within +/-5% of the nominal frequency. Operating Frequency: The Microprocessor Card shall be capable of operating at +10% to -15% of the nominal frequency, 50Hz or 60Hz, with programmable high and low limits to alarm and electronically shut down the Microprocessor Card. Limits shall be set to +/-2Hz from nominal and electronic shutdown shall occur if limits are exceeded for 10 seconds. Once back within limits for a programmable time period of 60 seconds, the Microprocessor Card shall automatically restart. 2.5 Site Specific Data: Input Over Current Protection: The Microprocessor Card shall be provided with an integral, three pole, molded case, manually operated, thermal magnetic input circuit breaker rated at 125% of the full load input current. In addition, the system input current, Phase R, Y and B, shall be monitored and digitally displayed. A

Contd....from item No 10.01 programmable over current alarm shall be provided. Bypass Switch: The Microprocessor Card shall be provided with an integral break before make rotary bypass switch. The Microprocessor Card shall be either on line or bypassed with one turn of the switch. On models where the input and output nominal voltages are different, a regulator bypass shall be provided in which the shielded isolation transformer will remain on line to provide voltage transformation and isolation. On models where the input and output nominal voltages are the same, an integral break before make rotary maintenance bypass switch shall be provided to wrap around and isolate the Microprocessor Card. In this case, an input neutral conductor(s) shall be provided and the bypass switch shall bypass the output neutral, as well as, the phase conductors. The bypass switch circuitry shall be wired such that it cannot switch the unregulated power directly to the active load. Bypass switch actuation shall trip the Microprocessor Card input breaker, so that the facility load must then be reconnected using the input breaker.Alarms: The Microprocessor Card shall be provided with an input over/under voltage, input over current, over/under frequency, voltage phase reversal, voltage phase imbalance, output over/under voltage, and output over current alarms. The alarms shall automatically reset upon return to nominal operating conditions. Remote communication of alarms via a contact closure shall be provided. Optional digital communication via RS232 and RS485 shall be made available. The Microprocessor Card shall be provided with individual “Fuse Failure” indicator lights, phase R, Y and B, on the front panel for diagnostic purpose. The Microprocessor Card shall be equipped with True RMS Measurement, Stores last 15 faults, Detection of fault with display of parameter value, USB configuration with PRKAB, CBCT open detection circuit Earth Leakage Re to Detect and protect instruments from leakage

Contd....from item No 10.02 current, Dual Color LED for fault indication, : A digital input meter shall be provided to display line voltages, line currents, frequency, kVA, kW, and power factor. A separate digital output meter shall be provided to display line to line voltages, line to neutral voltages, phase currents and neutral current. Both meters shall have programmable minimum and maximum value set points, recorded in EEPROM. Both meters shall be capable of optional remote communications via RS232 and RS485. Input/Output Cable Connections: The Microprocessor Card shall have provisions for the installation of cable lugs directly to the input/output bus bars or conductors to the input/output terminals provided. Grounding Cable Lugs: The Microprocessor Card shall have provisions for the installation of cable lugs directly to the ground bus bar or conductor to the terminal provided. MAKE : Partner/ ABB/ CG/C&S/ASHIDA MIN ISO 9001:2015 CERTFIED APPROVED BY GE. Necessary test certificates & Purchase Vouchers to be scrutnised / approved by Engg-in-Charge & GE first before execution at site . Any Defect occuring during this period due to bad workmanship of material, manufacturing defect shall be rectified or replaced free of cost. The contractor shall furnish written gaurantee on letter head for above mentioned to the GE immidiately after completion of work.

Dismantling of old U/S protection , alarm & replacement with new , installation , testing , commissining of DC Failure protection system unit suitable for 33kV Control Panel and exisiting Breaker with Indication by High bright LED Built in test & accept push buttons Built in audible alarm Suitable for wide range of DC supply Three No’s. normally open contacts also given for externel application like remote window or alarm High barrier with Shrouded connectors for easy & safety terminations suitable for 11 KV/ 33 KV switchgear with built in TECHNICAL SPECIFICATION: Input DC Supply : 20 to 250V DC. Input AC Supply : 230V AC ± 20%. Audible alarm output : 90dB at 1 Meter – Intermittent sound. Response time : Less than 100 msec. (Indication & alarm When DC fails). Output relay contacts : 1 NO Contacts Contact rating : 5A at 230VAC/30VDC Mounting Type : Flush mounting. Make ISO 9001:2015 Certified or approved by GE or accepting Officer. Necessary test certificates & Latest Purchase Vouchers to be scrutnised / approved by Engg-in-Charge & GE first before execution at site . Any Defect occuring during this period due to bad workmanship of material, manufacturing defect shall be rectified or replaced free of cost. The contractor shall furnish written gaurantee on letter head for above mentioned to the GE immidiately after completion of work. Make - Partener/ Seco / ISO 9001 : 2015 Certified.

Contd....from item No 12.01 Electrical SLD with all IEC symbols is must Chart - graphs based on data from multiple sources such as inverter and local weather databases. Histograms/Pie charts/Bar graphs/line graphs/ donut graph, area graph, heatmap graph shall be available. System should support Time vs Time comparison of captured parameters by showing data of interested days/months adjacent to each other (example: 9th day of this month, and last month displayed adjacent to each other) System should support Spend Analysis (money equivalent of energy, and not just units of energy) System should support creating user-defined KPIs (max, min, aggregated Sum, averaged values over day, week, month) system should support creating user-defined benchmarks, and displaying data in charts / dashboard comparing against these benchmarks System should support saving frequently used analytics charts for later users. All saved charts should be available to choose with a single-click. System should support showing analytics data in graphical and tabular form. Facility to export data over a custom time interval to Excel shall be available. Reports should be user-defined and not fixed (hardcoded into the system). System should support sending daily, weekly and monthly reports. Daily reports should be sent next day morning over email incorporating all data from previous day. There should be a mechanism to turn reporting sending of scheduled reports ON/OFF There should be a mechanism to send a pre-created report on-demand (and not just as scheduled daily / weekly / monthly report) Settings - To view the metadata related to the system, such as the site name and installation date, details of equipment at site etc. Alarms and event logs – Alarm should Issue a system update that the system has detected. Passwords should be stored in encrypted format. Website should be accessible on all platforms and be compatible with popular browsers such as IE, Chrome, Firefox, Safari etc. Online Administration: All administration is handled online via a current web browser Audit Trail: Administrators can access logs in the backend on need-basis where they can view changes that have been made to the database for critical information.

Contd....from item No 12.02 Data Backup should support PITR (Point-in-time-recovery). Scheduler for auto archival and backup of application and database to a different machine which should be capable of coming online by simply firing a script button in event of downtime of primary server. The database should use encryption at rest to persist the data in database. Secure password protected login for administrative actions in the system. All updates to data gathering hardware should be through OTA (over the air). No static IPs shall be made available at sites. The complete equipment must be programmed with protection CT inside the existing Low Tension switchgear /breaker / Switching Contactors along with multifunction microprocessor digital programmer having Main measurements and functions include: Voltage: phase, line and system values Current: phase values (neutral current calculated) Power: apparent, active and reactive phase and total values Power Factor per phase and total Frequency of measured voltage value HIGH LOW AVERAGE - - value functions for all measurements Maximum demand of power and current values Voltage and current asymmetry Total harmonic distortion ( ): voltage and current THD Energy meters for active, reactive, apparent partial and total values, per phase and system values Hour counter for programmable total and partial hours Phase active power unbalance must saturate sufficiently high to allow a relatively accurate measurement of the fault current by the protection whose operating threshold can be very high. with built in high Accuracy Limit Factor (ALF) ratio between the nominal overcurrent and the rated current. so that existing switchgear relay must be able to withstand high overcurrent’s also featured with Real accuracy factor ratio between the overcurrent , nominal error and the rated current .with following specifications insulation level voltage .433 KV ratio 100/5A - to 500/5A Core 3 class PS, KPV >= 150 Volts Imag at vk/2<= 30 ma , RCT at 75C<= 2 Ohms short time rating 15 KA for 1 second , SIEMENS/SCHNIDER/ ABB. approved by GE minimum ISO 9001:2015 Certified . Note :- Necessary test certificates to be approved by Engg-in-Charge first before execution at site.

Dismantling of old damaged u/s lights & replacement with new S/I/T/C of Degree of protection IP65 LED Integral LEDs 12 V, 24 V, 30 V, 48 V, 60...63.5 V, 110 V, 220...230 V AC/DC Colour White, Green, Red, Amber, Blue, Yellow of Ø 22/0.866 in. plastic control and signalling units Make as directed by Engg-in -charge

S/I/T/C of 11kV Current Transformer (CT) with three-core CT cores required for metering, protection, and REF protection in an existing 11kV system Typical CT Core Requirements for 11kV System Function CT Core Required CT Core Class Burden (VA) Metering 1 core Class 0.2 / 0.5 5–15 VA Protection 1 core Class 5P10 or 10P10 15–30 VA (typically) REF Protection 1 core Class 5P20 or PS (special) Depends on scheme (15–45 VA or more) Metering: Needs high accuracy (Class 0.2 or 0.5). Low burden. Protection: Requires higher accuracy at higher currents (Class 5P10 or 10P10). Should operate correctly under fault conditions. ŌC/EF used for overcurrent and earth fault protection REF protection Very sensitive to current mismatch. Requires matched CTs with wide dynamic range (Class PS or 5P20). Used on both sides of a transformer. For an 11kV feeder, typically 3 CT cores per phase are required: • Core 1 – Metering • Core 2 – Protection (OC/EF) • Core 3 – REF The OEM of CT must take the data like lead resistance, relay burden, and system fault level from the MES before designing PS class CT. Core 1 & 2: Protection Cores These cores are designed to operate accurately during fault conditions and saturate quickly above the fault level to protect connected relays. Accuracy Class: Typically 5P or 10P (e.g., 5P10, meaning 5% error at the accuracy limit factor of 10).Burden: Typically 10 VA, 15 VA, or higher, depending on the connected relay's requirements and cable length.Accuracy Limit Factor (ALF): e.g., 10 or 15. Special Purpose (PS) Class: For high-impedance or differential protection, a PS class is used, specified by: Knee Point Voltage Not less than 700 V (depends on ratio and burden).Excitation Current Specified at a certain percentage of the knee point voltage. Secondary Winding Resistance Measured and considered for relay settings. Saturation Factor: Minimum of 10 for standard protection cores. Core 3: Metering Core This core is designed for high accuracy under normal operating conditions. It has a low Instrument Security Factor (ISF) to protect the connected meters from damage during high fault currents. Accuracy Class: Typically 0.2S, 0.5, or 0.5S.Burden: Typically 5 VA or 10 VA.Instrument Security Factor (ISF): Less than 5 at the lowest ratio to protect meters.

S/I/T/C flush mounted installation of REF IR-protection relay comply with the IEC/DIN regulations required for the specific protection application. Plug-in technology & easy operation, quick fault-analysis and optimal communication capabilities are based on the microprocessor technology with following characteristics:Integration of multiple protective functions into one compact housing,User-friendly setting procedure by means of DIP-switches,Compact construction type by SMD~technology & also Complete suitable for earth fault directional detection with Rated data: Nominal current IN : 1A/5A Nominal frequency fN : 50/60 Hz Power consumption : 97% Returning time : 30 ms Minimum operating time : 30 ms Output relay characteristics: Maximum breaking capacity : 250 V AC / 1500 VA / continuous current 6 A Design standard : VDE 0435, part 303, IEC 255.4, BS 142 Specified ambient service Temperature range: for storage : - 40°C to + 85°C for operating : - 20°C to + 70°C Environmental protection class F as per DIN 40040 and per DIN IEC 68 2-3 : relative humidity 95 % at 40°C for 56 days Insulation test voltage, inputs and outputs between themselves and to the relay frame as per VDE 0435, part 303 IEC 255-5 : 5 kV; 1.2/50 Hz; 1 min. (except supply voltage inputs) Impulse test voltage, inputs and outputs between themselves and to the relay frame as per VDE 0435, part 303 IEC 255-5 : 5 kV; 1.2 / 50 μs; 0.5 J High frequency interference test voltage, inputs and outputs between themselves and to the relay frame as per DIN IEC 255-6 : 2.5 kV / 1MHz Electrostatic discharge (ESD) test as per DIN VDE 0843, part 2 IEC 801-2 : 8 kV Electrostatic discharge (ESD) test as per DIN VDE 0843, part 4 IEC 801-4 : 4 kV / 2.5 kHz, 15 ms Radio interference suppression test as per EN 55011 : limit value class B Radio interference field test as per DIN DVE 0843, part 3 IEC 801-4 : electrical field strength 10 V/m Mechanical tests: Shock : class 1 acc. to DIN IEC 255-21-2 Vibration : class 1 acc. to DIN IEC 255-21-1 Degree of protection - front of relay : IP 54 by enclosure of the relay case and front panel (relay version D) Weight : approx. 1.5 kg Degree of pollution : 2 by using housing type A 3 by using housing type D Overvoltage class : III Influence variable values: Frequency influence : 40 Hz < f < 70 Hz:

Dismantling of old damaged 4 CORE 2.5 sq mm wire and replacement with new necessary for metering & motor operation

Dismantling of old damaged 4 CORE 1.5 sq mm wire and replacement with new metering

Supplying and fixing in replacement of disc type porcelain insulators, vitreous glazed, suitable for 33,000 volts grade, colour white / brown / green, complete with one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut, including all fittings and accessories, proper erection on structures/gantry, alignment, tightening, testing, and making good, complete in all respects as per relevant IS standards, approved drawings, technical specifications, and as directed by the Engineer-in-Charge .

Material & labour of 33 kv pin type insulator made of high- strength glazed porcelain suitable for outdoor use in 33 kv overhead distribution lines.The insulator shall conform to IS:731 OR IES: 60383,and be designed for mounting on a glavanized steel pin.The insulator shall have minimum creepage distance of 900 mm with power frequency with stand voltage of not less than 70 kv(dry) and 60kv(wet),and an impulsewithstand voltage of 170kvp. it shall be on solid core, single -piece constructionwith top groove suotable for conductorbinding using aluminiumor GI wire complete including taking down old unserviceable insulator all as specified and directed. Make: Aprroved standard make

Supply and fixing in replacement of aluminium alloy Parallel Groove (PG) clamp suitable for approved size of ACSR conductor, for 33 kV HT overhead busbar and jumper connections within 33/11 kV substation yard. The PG clamp shall be made of high-strength aluminium alloy, provided with galvanized steel bolts, nuts and washers. The work shall include cleaning of conductor surfaces, proper alignment, tightening to required torque, ensuring good electrical and mechanical contact, and completion of all connections on gantries, structures and equipment terminals as per approved drawings, relevant IS standards and directions of Engineer-in-Charge.

Supply, fixing in replacement of gang operated air break switch 33 KV, 200 Amp outdoor type triple pole suitable for horizontal mounting type suitable for manual operation from ground level, triple pole, double break suitable for horizontal mounting consisting of hot dipped galvanized steel channel base having 3 nos 33 KV post top insulator per phase complete with copper contact element, MS flat, copper blade, bearing assembly etc and suitable GI pipe of 40mm dia galvanised medium grade pipe as down rod lever between coupling bar and operation handle with locking arrangement at both ON and OFF position suitable for 33kv system having earth link system comprising earth switch indicator and auxiliary switch complete all as as specified and as directed

Material & labour of 33 kv Lightneng arrester, station -class, gapless tyoe , metal oxide (znO) surge atrrester suitable for outdoor installation on 33 kv side of substation or on pole structure. The lightening arrester shall conform to IS;3070 or IEC 60099-4 and be rated for continuous operation at system voltage.The arrester shall have Nominal voltage 33 kv , maximum continuous operating voltage 27-28kv rms, rated discharge current :10KA, Pressure relief device and insulation coordination suitable for use in high fault current enviornment , creepage distance minimum 850 mm complete with galvanised mounting brackets, terminal connectors, baseplate, and earthing clamp and necessary GI strip complete including taking down old unserviceable lightening arrester comp[lete all as specified and directed.

Supply, transportation, erection, stringing, sagging and fixing in replacement of Aluminium Conductor Steel Reinforced (ACSR) conductor of type Panther, conforming to IS:398 (Part-II), suitable for 33 kV system, for overhead HT connections within 33/11 kV substation yard. The work shall include cutting to required lengths, stringing, tensioning, sag control, binding/clamping on post or suspension insulators, providing jumper connections, dead-end and suspension arrangements on steel gantries/structures, and maintaining required phase clearances. The item includes all labour, tools, tackles and incidentals complete as per approved drawings, technical specifications and directions of Engineer-in-Charge.

Supply, laying and fixing of hot dip galvanized iron (GI) strip of size 32 mm × 6 mm thick in 33 kV substation yard for earthing system including excavation of trench, laying the GI strip in trenches or on surface as required, forming earthing grid, welding/bolting joints with proper overlap, applying anti-corrosive paint at joints, connection to equipment structures, transformer body, support structures, lightning arresters and earthing pits, refilling of excavated soil, watering, ramming and making good the surface,complete all as specified and directed.

M&L Earthing complete copper plate 60×60cm ×3.15mm thick electrode buried in ground vertically not less than 2.25mtrs deep below ground level with top edge of the plate not less than 1.5mtrs below ground level with 20×3mm copper strip as earthing lead including necessary excavation and earth work (in any of strata) providing charcoal dust, salt mixed with fine sand in continuous layers, PCC (1:3:6 ) type C1 in chember ,Precast 50 mm thick in cement ( 1: 2:4) type B.1 with CI frame with cover, 20mm dia bore light grade GI watering pipe furnel etc fixing of GI Pipe 40 mm bore protection for earthing strip from earth pit to test point complete & making connection all as specified in Electrical plate No 3 and as directed by Engineer-in-Charge.

M&L Earthing complete with 60cm x 60cm x 6 mm thick GI plate electrode buried in ground vertically not less than 2.25mtrs deep below ground level with top edge of the plate not less than 1.5mtrs below ground level with GI strip of size 32 x 6mm as earthing lead including necessary excavation and earth work (in any of strata) providing charcoal dust, salt mixed with fine sand in continuous layers, PCC (1:3:6 ) type C1 in chember ,Precast 50 mm thick in cement ( 1: 2:4) type B.1 with CI frame with cover, 20mm dia bore light grade GI watering pipe furnel etc fixing of GI Pipe 40 mm bore protection for earthing strip from earth pit to test point complete & making connection all as specified in Electrical plate No 3 and as directed by Engineer-in-Charge.