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GETCO/E/TS/OTICM-56/R0/Oct-15 Page 1 of 14 Technical specification On-Line Transformer Intelligent Condition Monitoring System (OTICM) System 1) Scope: On-line Transformer Intelligent Condition Monitoring (OTICM) Systems supply includes design, manufacture, testing, supply, erection and satisfactory commissioning on any given transformers of from 66KV to 400KV at any substation. The OTICM system shall be suitable for monitoring at least four numbers of transformers at a time. The supply shall include provision of all required sensors, acquisition units, cables, processors, software, computers, cabinets and other accessories required for successful operation & performance shall be in the scope of supply, by bidder. The bidder shall be OEM or his authorized representative only. The sensors and equipment for transformers to be connected shall be based on the requirements of a particular Substation as indicated in Schedule A of respective tender. Any of the sensors not available on transformer shall be provided by bidder. Those sensors, which are not feasible to be provided for existing transformer, shall be identified and excluded from scope of supply, will be decided during detailed engineering. List of sensors required by bidder shall be invariably mentioned in technical bid. All control & instrumentation cables shall be screened and armored. While power cables shall be steel armored. The Supervision of installation & commissioning of the (OTICM) system shall be carried out by bidder’s expert only. 2) Features of OTICM System: The system should identify an anomaly and its possible causes. It shall provide reliable and continuous information on individual transformers and/or the entire transformer population / fleet. It shall produce recommendations for basic actions and other outputs which can be easily interpreted by the user (both in bottom-up and top-down approaches). 3) Technical Requirements: 3.1 On-line Transformer Intelligent Condition Monitoring System (OTICM) shall be suitable for any of the 66 & above voltage class transformers, identified by purchaser. 3.2 The OTICMS system is intended to provide supervision of the operating condition, condition monitoring and aging rate of transformer in line with IEC-60076-7. 3.3 The OTICMS system to be supplied under this specification shall provide on line measurement of various parameters, acquisition of data, the periodic storage of information, analysis of data & shall extend control commands/alarms. The relevant data / information captured by this system shall be retained at least for the period of minimum 30 years. 3.4 System data / information should be of high quality w.r.t accuracy, correctness, accessibility & completeness. 3.5 Data / information from the other data sources which OTICM system relies shall be of high quality. 3.6 Data / information transformed by the OTICM system shall be useful and user friendly. 3.7 The monitoring system shall be complete with all required sensors, data acquisition unit, processing unit, routers/switches (as required) and associated communication network comprising of optical signaling system, electrical signaling system and/or a combination of both.

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Technical specification

On-Line Transformer Intelligent Condition Monitoring System

(OTICM) System

1) Scope:

On-line Transformer Intelligent Condition Monitoring (OTICM) Systems supply includes design,

manufacture, testing, supply, erection and satisfactory commissioning on any given

transformers of from 66KV to 400KV at any substation.

The OTICM system shall be suitable for monitoring at least four numbers of transformers at a

time. The supply shall include provision of all required sensors, acquisition units, cables,

processors, software, computers, cabinets and other accessories required for successful

operation & performance shall be in the scope of supply, by bidder. The bidder shall be OEM

or his authorized representative only. The sensors and equipment for transformers to be

connected shall be based on the requirements of a particular Substation as indicated in

Schedule – A of respective tender. Any of the sensors not available on transformer shall be

provided by bidder. Those sensors, which are not feasible to be provided for existing

transformer, shall be identified and excluded from scope of supply, will be decided during

detailed engineering. List of sensors required by bidder shall be invariably mentioned in

technical bid. All control & instrumentation cables shall be screened and armored. While

power cables shall be steel armored.

The Supervision of installation & commissioning of the (OTICM) system shall be carried out by

bidder’s expert only.

2) Features of OTICM System:

The system should identify an anomaly and its possible causes. It shall provide reliable and

continuous information on individual transformers and/or the entire transformer population /

fleet. It shall produce recommendations for basic actions and other outputs which can be

easily interpreted by the user (both in bottom-up and top-down approaches).

3) Technical Requirements:

3.1 On-line Transformer Intelligent Condition Monitoring System (OTICM) shall be suitable for any of the 66 & above voltage class transformers, identified by purchaser.

3.2 The OTICMS system is intended to provide supervision of the operating condition, condition monitoring and aging rate of transformer in line with IEC-60076-7.

3.3 The OTICMS system to be supplied under this specification shall provide on line measurement of various parameters, acquisition of data, the periodic storage of information, analysis of data & shall extend control commands/alarms. The relevant data / information captured by this system shall be retained at least for the period of minimum 30 years.

3.4 System data / information should be of high quality w.r.t accuracy, correctness, accessibility & completeness.

3.5 Data / information from the other data sources which OTICM system relies shall be of high quality.

3.6 Data / information transformed by the OTICM system shall be useful and user friendly. 3.7 The monitoring system shall be complete with all required sensors, data acquisition unit,

processing unit, routers/switches (as required) and associated communication network comprising of optical signaling system, electrical signaling system and/or a combination of both.

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3.8 The monitoring system shall be designed to operate correctly and satisfactorily with the excursion of auxiliary AC & DC voltages and frequency as specified.

3.9 The system shall be EMI compatible to work as per IEC 61000 in an environment of energized substation up to 400 kV.

3.10 The current inputs shall be obtained from respective bushing Turret CTs or bay CTs. The voltage shall be obtained from the bus/ bay CVT/PT. In case of outage of either Bus/bay the voltage & current inputs to the system should not be affected and necessary hardware & cabling shall be provided to take care of the same.

3.11 The OTICM system shall monitor shall carry-out on line measurements, computation and analysis for monitoring and shall include but not limiting to the following parameters of Power transformer: a) Apparent Power (MVA) b) Operating voltage on HV side by means of measurement from Bus/ bay CVT/PT. c) Load current & short circuit currents on HV or LV side, Overload capacity &

emergency over loading time. d) Health monitoring of all the bushings (except neutral) professed

i. Measurement leakage current

ii. Tan delta & capacitance

Note:

i) Capacitance values shall be determined & the same shall be validated with the

offline values of capacitance measured jointly by GETCO & successful bidder during

the commissioning of monitoring system using the GETCO measuring equipment.

The capacitance values shall be within the limits of 1% compared to the offline

values.

ii) The tan delta shall also be calculated/estimated/measured & any abnormal

change shall be reported as alarm. The alarm limits shall be jointly decided by

GETCO & successful bidder.

f) Temperature of transformer oil, Winding Hot spot temperature, dynamic overload limit

& ambient temperature.

g) Conservator Oil level (Main Tank & OLTC) .

h) Ageing rate as per IEC-60076-6. The model should provide an ageing acceleration

factor, a daily aging, for trend graph display.

i) Dissolved gases and rate of gas generations in transformer oil for at least H2, CO,

C2H2 & CH4 (individual gases in ppm).

j) Moisture in Oil in ppm.

k) Cooling system

Operational states of the pumps & fans.

Oil temperature In/Out of the coolers.

OLTC Motor signature.

l) OLTC: Status of the end of course (operation completion signal)

- Actuation of command keys / button holes (event signal) - Motor driving current - Current accumulated in individual taps (load current)

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- Shaft torque curve of the engine switch (drive speed) - Tap position indicator - AC supply voltage - Number of accumulated changes on each tap - Total number of operations of the OLTC

3.12 Necessary sensors for the above shall be provided by the bidders. The existing sensors,

if available, can be used and integrated with the monitoring system without affecting the

existing system.

3.13 In case of any deviation in the monitored parameters from preset values shall initiate

visual & audible alarms. The alarm shall be configurable from the operator console by

administrator/configurator of the system in two stages viz. minor & major. All major

alarms shall initiate SMS message to user defined mobile numbers (provision shall be

made at least 5 mobile nos.)

3.14 System Requirements:

OTICM will not be isolated system but a part of complete transformer.

It shall be compatible, interoperable & interchangeable with hardware/firmware &

software. It can be integrated or interfaced with other company/systems.

It can be expanded updated with minimal rework.

It shall integrate all periodic off-line & on-line continuous data/information in a

common & standardized computational architecture.

It should have some reliability as alternative station systems.

Modular in structure to allow full or partial implementation as needed by user.

OTICM should be able to perform self-diagnosis & require minimum maintenance.

System data/information should be of high quality w.r.t accuracy, correctness

accessibility & completeness.

Required sensors for temperature measurement shall be provided if not

installed/available.

Oil temperature measurement shall be available from -40ºC to 120ºC, (top oil,

bottom oil, cooler inlet, and cooler outlet.)

4) Software Facilities:

The software should be able to perform sophisticated engineering model computations to

provide intelligent information about the transformer, operating conditions. The software shall

include & not limiting to the following features:

4.1 Monitoring features:

Display of s/s name and transformer identification.

Synchronization of monitoring system with GPS.

Tagging of monitored transformer.

On line monitoring of parameters of transformer as specified and automatic retrieval

and analysis of data in real time trending data.

Display of monitored data in real time (Data update in every 5 sec, which shall be

configurable by the operator in the range of 1sec to 300 sec)

Display & storage of calculated values-average, maximum, minimum values of the data

over a user defined period (Initially it shall be configured for 15 min).

Time tagging of events.

Highlighting the overload periods.

Report generation & printing the reports

Transformer ageing rate.

Rate of change of monitored parameters.

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Comparison with user defined preset values (pre-commissioning/ offline values)

Suitable security control is to be provided for access to the system by an authorized

user.

Facilities for entry of basic data through a simple graphical user interphase (GUI).

Downloading of stored data in Excel, Access/open office spreadsheet.

4.2 User Access Control Features:

4.2.1 The system should have provision for three (3) levels of user groups namely

Administrator, Configurator and users.

4.2.2 USERS: shall have viewing, report generation and downloading rights

CONFIGURATOR: In addition to the rights of user shall be able to configure monitoring

system viz. inputting & modifying and deleting basic configuration data like nomenclatures,

location details, preset values, offline value/pre-commissioning values, other setup values,

one time data inputs etc. for particular piece of equipment/accessories.

ADMINISTRATORS: In addition to the rights of Configurator shall have the rights for

necessary changes in software, operating system, software upgrades, security patches

etc. Administrator will also be able to create/delete users/configurator/administrator and

modify their rights.

4.2.3 User group shall be able to access the system by login & password as per the above

policy through GETCO intranet using GETCO internal authentication system to confirm.

4.3 Support:

The successful bidder shall provide software support for complete operating system and

application software including supply of updates, security patches if any for a period of 3

years from the date of commissioning. The complete documentation of the system shall be

provided so as to enable GETCO for trouble free upkeep & maintenance of the system

after end of support period.

4.4 Training:

Training to Five (5) persons of GETCO shall be imparted by bidder free of cost. Duration of the complete training shall be 2 working days. The training shall cover familiarization with procedures of installation, configuration, testing, commissioning, operation, maintenance and trouble shooting on the OTICM system covering all the aspects to the person/s identified by GETCO, in the event of an order. The cost of logistics will be borne by

GETCO. Bidder shall at his cost arrange for the above training facilities and in addition shall bear all living expenses plus inland travel expenses of all the trainees. The Purchaser shall only pay to and fro passage of the trainees. The programme of the training shall be mutually discussed and finalized during detailed engineering.

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5) Architecture:

5.1 The parameters measured by various sensors shall be brought to a common local cabinet

(outdoor), which shall be provided with lighting & thermostat-controlled heater. The

processor can be either located in the yard near the transformer or in the control room. The

processor mounted near the transformer in the yard shall be housed in environmentally

controlled and pedestal mounted kiosk. This equipment shall also be protected against any

external stresses.

5.2 Indicative architecture of the monitoring system is shown in the fig-1. The contractor shall

supply all computers and networking hardware and software for complete solution. The

contractor shall supply server (s), one console and firewall, each with 24”TFT monitors.

The server & console shall be provided with DVD-R/W. Specification for configuration of

the same is given here under.

Power supply 230 V + / - 10 V , 50 Hz AC

Processor Type Intel® Core™ i5 (4440) @3.1 GHz or Higher, L3, 4 MB

Chipset Intel ® Q87 or better and compatible with processor

Memory Type DDRIII (SDRAM) 1333/1600 MHz

Standard memory 8 GB

Memory slots 4 DIMM

Memory upgrade Expandable up to 32 GB

Internal hard disk drive

Minimum 1 TB SATA 3 with removable Bay. (Calculation for storage capacity considering requirement stipulated in specification shall be submitted by bidder with tender bid.)

Hard disk drive speed

7200 rpm

Optical drives 16X DVD-ROM (Combo)

Chassis type Industrial grade Micro tower / Rack mounted as per requirement

Video adapter, bus PCI Express ™X16

Expansion slots 4 x PCI 32 bit / 33 MHz slots 2 x PCI 2.3 slots, 1 x PCIe 1 Slot - 250 MB/s per dir. 1 x PCIe 16 Slot - 8GB/s per dir. 1 x PCIe x 4 - 1 GB/s per dir.

Audio Integrated Audio with External speakers & Microphone

Graphics controller Intel ® GMCH integrated Graphics controller

Network Interface Integrated 10/100/1000 Gigabit Fast Ethernet-WOL

External I/O ports 1 x Parallel port, 1 x Serial port, 1 x PS/2 mouse, 6 x USB 2.0 ports (2 front, 4 rear), 1 x VGA, 2 x RJ-45, 3 Audio ports (rear: audio-in, audio-out/headphone, mic-in)

Monitor 24” or higher LED

Keyboard Standard PS/2 Soft touch Keyboard.

Pointing Device 2-Button Optical Scroll Mouse (USB)

Operating system installed.

Windows OS software compatible to offered system of OTICM

Other Preloaded latest version of MS office compatible with the offered solution.

Warranty 3 year of on-site comprehensive.

Make Advantech, Dell, hp, IBM or equivalent international standard.

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Due to various alternative design approaches, it is neither intended nor possible to specify all software and firmware characteristics. It is the intent herein to provide hardware requirement of server/workstation with minimum configuration design. However, to work effectively, efficiently and reliably, the system offered should have the hardware configuration of properly sized to support all functionality in Toto.

5.3 The solution should be built in the server side technology such that user interaction with

the server is carried on industry standard web browsing without installation of client side

software. Server shall have the necessary application software/hardware installed for

sending the SMS as specified in clause 3.13 above.

5.4 The application software shall also include module installed on the server which can

generate HTML-based web pages which can show the online and historical data to the

users. Suitable fire wall shall be provided for protection from internet attacks. The data

shall be available across the GETCO intranet as per policy listed in Clause no. 4.2. (User

Access Control Features). All necessary software’s required for this, shall be supplied by

the bidder.

5.5 An operator console with a window based work station shall be provided at the control

desk in the control room to display, access and process the monitored data through

industry standards web browsers I.E 6.0 & Firefox 2.X or above. The necessary operating

systems & software for the above shall be provided by the bidder. The offered system shall

support additional console for future requirement. Provision shall also be made to extend

the alarm/trip command to control/relay panel.

5.6 The window based workstation console shall be supplied with latest version of MS office

compatible with the offered solution.

5.7 The server & firewall/routers/networking hardware shall be rack mounted or table mounted.

The operator console shall be table mounted. Necessary rack/furniture for all hardware

shall be provided by the contractor.

5.8 The connection to the server from the modules located in the switchyard shall be through

armored ITU-T-G652 fiber optic cable conforming to TEC specification G/OFC/-01/4 with

rodent protection and shall be installed in HDPE pipes conforming to IS: 4984. The

communication to control/monitoring module from various sensors can be either through

hard wire or optical cable. Necessary digital- opto conversion shall be provided.

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5.9 Physical components of on-line continuous monitoring systems such as sensors, IEDs,

servers for data processing and storage, etc. should be able to communicate effectively

and share measured and analyzed data by means of standardized interfaces, common

input and output data and communication protocols as much as possible to achieve the

compatibility and interoperability between devices and systems from different vendors.

6) Functions:

6.1 Data Acquisition:

The acquisition of real time data (external process variables) shall meet the requirements

specified in clause 4.1 above.

6.2 Data Storage:

Selectable from 1 min to 60 min hourly day maximum, minimum & average data (Both

measured & calculated) shall be stored for a minimum period of 6 months. However daily

Max, Min, & average (Both measured & calculated) shall be stored for a minimum period of

25 years (Expected life expectancy of transformers). Alarm shall be provided one week

ahead regarding saturation of storage memory to enable downloading the stored data on

other storage media, such as CD/DVD/pen drive/portable HD. Downloaded data should be

easily editable through MS Excel/Access/Open Office spread sheet.

6.3 Alarms:

The limiting values may be allocated to each process variable in alarm system. There

should be low threshold alarm and high threshold alarm. If they are exceeded, the system

should be able to generate an alarm message as well as audible alarm. The alarm

messages awaiting attention may be displayed in color in an alarm list, according to their

status (awaiting attention, acknowledged or eliminated).

GETCO Intranet

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6.4 Interfaces:

All required interfaces for proper functions of the offered system shall be in the scope of

the contractor. Necessary interfaces shall be provided in the offered system to exchange

data/information with SCADA system using IEC-60870-5-101 & 104 protocols in future.

The offered system shall be equipped with dial up modem & necessary interface for remote

log in using PSTN network. Accessories required for meeting the above shall be supplied

by the bidder.

6.5 Formats of output

Format of output reports shall be prepared for each monitoring parameters as per the

requirement of respective parameters. Reports shall be configured to be generated in

predefined format automatically as and when required. It shall be possible to convert

generated reports in easily editable MS office file format like .xl, .xls, .doc etc.

7) General Requirements:

The equipment covered under this specification shall be suitable for the following general

conditions:

7.1 Following auxiliary voltages & frequency variation shall be considered.

Nominal Voltage

Variation frequency

Frequency(Hz) Phase Neutral connection

415V +/-10% 50+/-5% 3 Solidly earthed

240V +/-10% 50+/-5% 1 Solidly earthed

110/220V 98V to 120V/187V to242V

DC - Isolated two wire

48V 45V to 55V DC - + earthed

7.2 Ambient temperature ranges shall be -20ºC to +50ºC.

7.3 The equipment must be new, of highest grade & best quality of their kind, to best

engineering practice & of state of art, and in accordance with purpose for which they are

intended and to ensure satisfactory performance throughout the service life.

7.4 The supplier shall arrange training at their manufacturer’s works as well as onsite training

to the staff of GETCO. A detailed training program shall be discussed and agreed at the

time of finalization of contract.

7.5 All sensors shall have degree of protection class of IP-65. Enclosure for outdoor monitoring

module box shall be IP-55 or better as per IS 529.

7.6 The equipment offered shall be of industry standard and designed to operate in the

66kv/132kv/220kV/400kV (as applicable) switchyard environment and shall comply with

the EMI/EMC requirement accordingly. The equipment to be installed in control room such

as computer hardware shall be designed to operate in the substation control room

environment. Contractor shall submit the necessary certificates/documents along with

their bid for compliance of the above.

7.7 All communication interfaces shall be IPv-6 compliant.

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APPENDIX-I

Bill of quantity for OTICM system

S no.

Description Unit

1 Hardware for OTICM (including server/main processor, two operator consoles, firewall, router, LAN equipment & cables etc.) suitable for monitoring of at least 4 transformer banks@Note-2

Set*

2 Software for OTICM system Set*

3 Control/monitoring modules along with all required sensors, cables etc. for transformer(one set for each transformer)

Set*

Note-1 : * Set includes all items required for successful completion of the system

Note-2: @ transformer bank shall consist of either three phase transformer/3 single phase

transformer in the instant case it will be 3 single phase transformers in a transformer bank.

8.1 Type tests:

All type tests as per applicable IS/IEC/EN or any other equivalent standard shall be submitted. The type test reports shall be from NABL accredited laboratory and shall not be older than seven years from the expiry of the validity of the offer.

a. Performance tests: i. Accuracy requirements ii. Functional test

b. Thermal requirements: i. Maximum allowable temperature ii. Limits of short time thermal withstand value of input energizing Quantities.

c. Insulation Tests: i. Dielectric Tests ii. Impulse Voltage withstand Test iii. Insulation resistance measurement

d. Influencing Quantities i Permissible ripples ii. Interruption of input voltage

e. Electromagnetic Compatibility Test: i. 1 MHZ burst disturbance test ii. Electrostatic Discharge Test iii. Radiated Electromagnetic Field Disturbance Test iv. Electrical Fast transient Disturbance Test v. Conducted Disturbances Tests induced by Radio Frequency Field vi. Magnetic Field Test vii. Emission (Conducted and Radiated) Test. viii. Surge Immunity Test

f. Environmental tests: i. Dry Cold Test ii. Dry Heat test

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iii Storage temperature test iv Damp heat Cyclic test

g. Mechanical Tests: i. Vibration response & Vibration endurance test ii. Bump test iii. Shock response test iv. Seismic test

h. Enclosure Test: i. Degree of Protection test – IP65

i. Safety Test: List of Standards: Sr. No.

Standard no. Title

1 Functional test and Accuracy test

As per relevant applicable standard

Thermal Requirements

1. IEC-60255-6 Thermal requirements

2. IEC-60255-11 Interruption to and alternating component in DC aux. Energizing quantity

Electromagnetic Compatibility type test:

1. IEC-60255-22-1, 1MHz burst immunity test

2. IEC-60255-22-2, IEC-61000-4-2

Electrostatic discharge test Direct application Indirect application

3. IEC-60255-22-4, Fast transient / burst immunity test

4. IEC-, 60255-22-5 Surge immunity test

5. IEC-60255-22-7 Power frequency immunity test

6. IEC-61000-4-8, Power frequency magnetic field test

7. IEC- 60255-22-3 Radiated electromagnetic field immunity

9. IEEE/ANSI/C37.90.2 Radiated electromagnetic field disturbance

10. IEC- 60255-22-3 Immunity to conducted disturbances induced by radio frequency fields test

11. IEC- 60255-25 Electromagnetic emission tests - Conducted emission test - Radiated emission test

Insulation tests:

1. IEC- 60255-5 Dielectric test Impulse voltage test Insulation resistance

Environmental tests:

1. IEC-60068-2-1 Cold test Storage test

2. IEC-60068-2-2 Dry heat test

3. IEC-60068-2-3 Damp heat test, steady state

4. IEC-60068-2-30 Damp heat test, cyclic

5. IEC-60068-2-48 Storage temperature test

CE compliance

1. IEC- 60255-26 Electromagnetic compatibility requirements

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Sr. No.

Standard no. Title

Mechanical tests

1. IEC- 60255-21-1 Vibration

2. IEC- 60255-21-2 Shock and bump

3. IEC- 60255-21-3 Seismic

Degree of protection test

1. IEC 60529 Degree of Protection Provided by enclosure test

Safety test

1. IEC 61010-1 Equipment safety

Communication

1. IEC 61850-8-1 Station Bus

CIGRE Recommendation and Guide

1. CIGRE TB 343 Recommendation for condition monitoring and condition assessment facility for transformers

2. CIGRE 630 Guide on transformer intelligent condition monitoring (TICM) system

Others

1. IEC 60076-7 Loading Guide for Transformers

Important Note:

In case of non-submission of some the type test reports, the bidder shall confirm the

submission of same before commencement of supply, without affecting delivery schedule,

from NABL accredited laboratory, free of cost. In absence of this confirmation, the offer will

be evaluated as non-submission of type test report.

8.2 Acceptance Test:

Following acceptance tests shall be performed on offered OTICM, while offering material for

inspection. No material shall be dispatched without prior consent of the purchaser.

a) Measurement of Apparent Power (MVA) b) Measurement of Operating voltage c) Measurement of Load current short circuit currents d) Measurement of Overload capacity & emergency over loading time. e) Measurement of Leakage current & Tan delta cap f) Measurement of Temperature of transformer oil, Winding Hot spot temperature,

dynamic overload limit & ambient temperature. g) Measurement of Conservator Oil level. h) Measurement of Ageing rate as per IEC-60076-6- The model should provide an

ageing acceleration factor, a daily aging, for trend graph display. i) Measurement of Dissolved gases with rate of gas generations in transformer oil for

H2, CO, C2H2 & CH4 (individual gases in ppm). j) Measurement of Moisture in Oil in ppm. k) Operation of cooling system

Operational states of the pumps & fans.

Oil temperature In/Out of the coolers.

OLTC Motor signature.

Where ever the actual tests are not feasible to perform at works, the same shall be

demonstrated through simulation/modeling.

8.3 Site Acceptance tests:

Following Site Acceptance tests shall be performed on OTICM provided on given transformer.

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a) Measurement of Apparent Power (MVA) b) Measurement of Operating voltage c) Measurement of Load current short circuit currents d) Measurement of Overload capacity & emergency over loading time. e) Measurement of Leakage current & Tan delta cap f) Measurement of Temperature of transformer oil, Winding Hot spot temperature,

dynamic overload limit & ambient temperature. g) Measurement of Conservator Oil level. h) Measurement of Ageing rate as per IEC-60076-6- The model should provide an

ageing acceleration factor, a daily aging, for trend graph display. i) Measurement of Dissolved gases with rate of gas generations in transformer oil for

H2, CO, C2H2 & CH4 (individual gases in ppm). j) Measurement of Moisture in Oil in ppm. k) Operation of cooling system

Operational states of the pumps & fans.

Oil temperature In/Out of the coolers.

OLTC Motor signature.

9 Packing and Transport instruction:

a) Bidder shall ensure that all equipment covered by this specification shall be prepared for rail/road transport and be packed in such a manner as to protect it from damage in transit. The bidder shall be responsible for and make good at his own expense any or all damage due to improper preparation and packing. The Purchaser shall not be responsible for any damage to the equipment during commissioning if such damage results from faulty or inadequate action.

Purchaser shall not be liable for any loss, damage or injury to property or

persons at the installation site unless such damages or injuries are caused by

any and or negligence of the supervising erector.

b) Loose materials, bolts, nuts, etc. shall be packed in gunny bags and sealed in

Polythene bags with proper tagging.

c) Components containing glass shall be carefully covered with shock absorbing

protective material such as 'Thermo Cole'.

d) All opening in the equipment shall be tightly covered plugged or capped to prevent

dust and foreign material from entering in.

e) Wherever necessary, proper arrangements for attaching slings for lifting shall be

provided.

e) Any material found short inside the intact packing cases shall be supplied by the

Vendor/contractor at no extra cost to the Purchaser.

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Page 13 of 14

BIDDING SCHEDULE

(To be filled in and signed by the Bidder)

SCHEDULE ‘A’

SCHEDULE OF GUARANTEED TECHNICAL PARTICULARS FOR

ON-LINE TRANSFORMER INTELLIGENT CONDITION MONITORING SYSTEM (OTICM)

Sr No Particulars To be Filled by BIDDER

1 Name of bidder / supplier of OTICM

2 OEM/ Authorized representative (letter of OEM Authorization shall be submitted)

3 OTICM- Technical Parameters:

Make

a) Type/ Model

b) No. of transformers OTICM will monitor at a time

c) Suitable for transformer up to voltage class

d) Supervision requirement in line with IEC-60076-7 for

i) Operating condition

ii) Condition Monitoring

iii) Aging rate

e) System online measurement supports

i) Parameters List the Parameters

ii) Data acquisition of all parameters

iii) Periodic storage of information

iv) Data Analysis

v) Control Commands/Alarming

f) Capacity to retain data / information captured

g) Architecture of monitoring system as per Cl. 3.7 of technical specifications shall be attached with technical bid.

Drawing No. ___________

h) Compliance to EMI compatibility as per IEC Indicate type test report no. and laboratory

i) Compliance to EMC compatibility as per IEC/IEEE/ANSI.C37.90.2

Indicate type test report no. and laboratory

j) List of sensors (Cl. 3.11)

k) Oil temperature measurement range (top oil, bottom oil, cooler inlet and outlet)

4 Software support

a) Minimum Monitoring system features required

i) Synchronization with GPS

ii) Transformer tagging

iii) Automatic retrieval and analysis of data

iv) Configuration of data update time for display

(Sec) Indicate range

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Page 14 of 14

BIDDING SCHEDULE

(To be filled in and signed by the Bidder)

SCHEDULE ‘A’

SCHEDULE OF GUARANTEED TECHNICAL PARTICULARS FOR

ON-LINE TRANSFORMER INTELLIGENT CONDITION MONITORING SYSTEM (OTICM)

Sr No Particulars To be Filled by BIDDER

v) Display, storage of calculated value

configurable time in minute Indicate range

vi) Events time tagging

vii) Basic data entry through GUI

viii) Data downloading in Excel, Access/ Open

office & spreadsheet

b) Support for User Access Control

Three levels of user group i) Administrator, ii) Configurator & iii) User

5 Degree of protection class for monitoring/control box

6 Degree of protection class for sensors

7 Frequency variation (50 Hz)

8 Ambient temperature range supported (C0)

9 Communication interfaces compliant to IPV-6

10 Communication of Switchyard Modules with server List the protocols

11 Communication of sensors with control/monitoring modules

List the protocols

12 Communication between interfaces of system to exchange data/information with SCADA system

List the protocols

________________ ___________________________ Date: Sealed & Signed by bidder

.