SPECIFICATIONS FOR TWO NOS OF 2X120 KVA PARALLEL

REDUNDANT UNINTERRUPTED POWER SUPPLY SYSTEM

(UPS).

SUPPLY, INSTALLATION, TESTING AND COMMISSIONING OF TWO NOS OF

2X120 KVA PARALLEL REDUNDANT, MICROPROCESSOR CONTROLLED

ON-LINE UNINTERRUPTED POWER SUPPLY SYSTEM (UPS) ALONGWITH

SEALED MAINTENANCE FREE GEL TYPE BATTERY BANKS FOR PROVIDING

20 MINUTES BATTERY BACK-UP (BACKUP WITH INDIVIDUAL 120 KVA UPS

FULLY LOADED) COMPLETE AS PER THE TECHNICAL SPECIFICATIONS AND

FEATURES GIVEN BELOW.

SPECIFIC BRANDS: UPS SYSTEM: APC, MG, EMERSON, PILLER, RIELLO / AROS, GE BATTERY: SONNENSHINE, SONNEN, ADVA All external power cables: Finolex, Havells, Nicco, LAP

I. FEATURES OF THE UPS SYSTEM:

Technology:

The system should use High frequency IGBT Based rectifier utilising PWM

technique.

The system should use High frequency IGBT inverter with PWM, VFI technology.

All system control parameters and monitoring of rectifier, battery charging and

inverter functions should be carried out digitally. (i.e. by using microprocessor).

Bypass:

The system should provide in-built static bypass as well as manual by-pass. Redundancy:

The system should be able to work as parallel redundant module or standalone

modules as per requirement and it should be possible to program the same from the

front panel.

In case of normal operations, both the paralleled UPS should share the load

equally. In case of failure of any one of the module, the other module should take

complete load without any break of power to the connected loads. Both the systems

must also be able to be configured to take full capacity load independently whenever

needed.

System noise:

The acoustic noise of the system should be in tolerable limits as per the

standards and not exceed 75 dB at one meter distance.

Battery monitoring and capacity testing:

The system should provide battery monitoring facility. It should check battery

capacity in regular intervals during normal operation of the UPS. The front LCD panel

should show the capacity of the battery and automatically calculate how long the

load can be supplied and display the same.

Programmable battery testing facility should be provided in the system to know

the status of the battery at any time. By using this battery test mode the system

should disconnect input power supply at set time period and the battery should

discharge through the load. Programmed battery testing should be user selectable

through the front panel of the system.

Event recording facility:

The system should provide “Event Recording” facility. The system should store

atleast last 100 events i.e. input voltage variation or out of tolerance, operating

conditions of the system at any time, should include cause of the fault and should be

able to display the name of the faulty components in terms of rectifier controlled card,

inverter controlled card, snubber circuit fault etc., All events should be readable from

front panel LCD/LED of the system and it should be possible to take print out of the

same through the RS 232 communication interface port.

Front panel display:

Front panel of the system should have LCD/LED display for

- Displaying of input voltage, input frequency

- Input voltage and frequency of the supply connected in by-pass line

- Battery remaining time.

- Output voltage, output frequency and load connected to the system.

- It should also display events occurred by using event recorder.

- Should also provide facility to switch UPS ON/OFF, emergency switching OFF

and manual by-pass ON/OFF.

Mimic display:

Mimic diagram should be provided to know the status of the rectifier, inverter,

battery and output bus.

Emergency shutdown:

Emergency switching OFF of the UPS system to be provided. (Facility to be

made through remote operation also).

Input phase reversal:

In the event of any phase reversal in the input power source, the system should

neither trip nor go to battery discharge mode. It should work on mains but with fault

alarm indicating input phase reversal. This should be an inbuilt feature of the system

design.

Remote monitoring and control:

Standard RS 232 interface facility should be provided. SNMP Adaptor should be

provided with each UPS for remote access through LAN. RJ45 Ethernet port to be

provided. Necessary hardware / software to be provided for monitoring and control

from remote PC over internet.

Battery design calculation:

Battery Ampere Hour (AH) calculation sheet should be enclosed along with the

bid. While calculating battery backup, the aging factor must be taken as 25% and

design factor of 10%. The offered quotes without these details will not be considered.

II. Technical Data: Input: 1. Three Phase Voltage range of operation : 400 VAC + 20% - 15%

(Operating Range: 340 – 480 VAC.)

2. Supply Frequency : 45 to 65 Hz (Range of operation)

3. Input Power Factor : >0.99

4. Input current distortion/Harmonics : < 3%

5. Rectifier Technology : IGBT with PWM technology.

6. Input Phase Reversal : To work on input phase reversal

without going on battery mode.

Automatic phase sequence

correction is essential.

BY-PASS LINE:

1. Three Phase Voltage : 400 VAC + 15%.

2. Overload capacity for 1 min. : 150%

3. Overload capacity for 10 min. : 125%

OUTPUT:

1. Inverter Technology : IGBT with PWM Technology

2. Voltage Three Phase : 415 VAC, should be selectable to

380 or 400 Volts.

3. Voltage Stability : + 1% Static, + 3% dynamic

4. Wave Form : Sinusoidal (total harmonic distortion

within 2%)

5. Frequency : 50 Hz.

6. Frequency Stability : + 0.05 HZ

7. Crest factor : 3:1

8. Accepted over load : 125% for 10 min., 150% for 1 min.

9. Galvanic Isolation Transformer : Must be Inbuilt

10. Rating of UPS @ 0.9 pf : 120 KVA

11. Rating of UPS in KW : 108 KW

SYSTEM EFFICIENCY: 1. Total Efficiency of the UPS : more than 94%

(From 50% loading to 100% loading.)

III. SCOPE OF SUPPLY FOR TWO SETS OF 2 X 120 KVA UPS SYSTEM:

S.No. DESCRIPTION Qty.

1. 2x120 KVA UPS with inbuilt isolation transformer (4 Nos of 120 KVA)

2 Sets

2. SMF GEL Type Batteries for providing 20 min. battery backup with each 120 KVA UPS (Each battery bank must support for 20 min with 120 KVA load)( 4 Battery banks for 4 systems)

2 Sets

3. a. Battery Racks(4 Nos), interconnecting links – As per requirement b. Cable between UPS to Battery Bank (2 runs of 50 mtrs length for each battery bank to be laid in flexible corrugated wire re-inforced PVC flexible pipes.). (Cross-section area of the cable to be designed as per the full capacity rating). c. Battery breakers for isolation. One for each battery bank) d. Multi-strand copper conductor cables for three phase input, laid in flexible corrugated wire reinforced PVC flexible pipes (120 sqmm cross-sectional area -25 mtrs each) from the main input panel to the UPS. (4 runs of single core cables with suitable crimping terminal ends and glands – Three runs for three phases and one run for neutral)(100m for each system.) e. Multi-strand copper conductor cables for output laid in flexible corrugated wire reinforced PVC pipes from UPS system to the output panel. (120 sqmm cross-sectional area-25 mtrs each length) (5 runs of single core cables with suitable crimping terminal ends and glands – Three runs for three phases and two runs for neutral)

4 Sets

400mts

4 Nos

400 metres

500 metres

4. Temperature compensated Battery Charging Facility 4 Nos

5. SNMP Protocol. Necessary hardware and software and integration with the local LAN for monitoring and control through Internet.

4 Nos

6. Supply of material for earth pits and installation for UPS body and neutral earthing, copper plates, charcoal, salt etc. (Copper earth strip for body earthing and flexible insulated copper cable for neutral earthing to be provided), Construction of earth pits should be as per the standard design drawing given in the enclosed annexure.

1 Lot as per the actuals

IV. INSPECTION & TESTING:

A) Necessary routine tests shall be conducted in presence of NRSC representatives

after integration of the whole system (ie. UPS System and battery bank)

B) All the factory test data reports shall be submitted for scrutiny well in advance to

obtain the dispatch clearance.

C) NRSC as its desecration may depute engineers for witnessing the test at factory

which will be without any extra cost from that quoted.

D) Commissioning tests to demonstrate the features and control functions of the

UPS along with battery bank at site have to be carried out by the vendor, the

same will be witnessed by NRSC engineers.

V. INSTALLATION, COMMISSIONING & DOCUMENTATION (2 Sets of copies

each): UPS systems and associated auxiliary systems shall be installed as per manufacturer’s

guidance and as per the requirements at site at NRSC Balanagar. The following has to

be provided.

i) Instruction Manuals for Operations & Maintenance

ii) Service Manual

iii) List of Power and control devices used in the system with complete specifications

and characteristics

iv) Control and wiring diagram as actual.

v) Routine type and commissioning test reports

vi) Software if any with license for interfacing to a remote PC. PC will be arranged

by NRSC.

vii) Any other relevant documents as essential.

VI. TRAINING:

The bidder shall arrange free of cost training to NRSC staff at site.

VII. CHECK LIST FOR COMPLIANCE

ESSENTIAL TECHNICAL PARTICULARS FOR UPS & BATTERIES (To be filled in by the Vendor with documentary evidence, catalogue etc)

S.No. DESCRIPTION Required Offer by the vendor

Compliance Yes/No

1. 2*120 KVA UPS – 2 Nos APC, MG, EMERSON, PILLER, RIELLO/AROS, GE

2. Model

3. Rated output Power in KVA @0.9 pf. 120 KVA

4. Rated output Power in KW 108 KW

5. Input Voltage 400 VAC + 20% -15% (340V-480V)

6. Input Frequency 45-55 Hz

7. Rectifier Type IGBT Based with PWM controlled

8. Inverter Type IGBT Based with PWM Controlled

9.. Input Power Factor >0.99

10. Total Harmonic Distortion

Input Current Harmonic Distortion (%)

Full Load

75% load

25-50% load

<4 % <4% <6%

Output Voltage Distortion (%) with linear Load

<1%

Output Voltage Distortion(%) with nonlinear Load

<3%

11. Power Walk-in 0-120 Sec (settable)

12. Output Voltage 380/400/415 VAC (Selectable in steps

as given above)

13. Output Voltage Stability (Linear Load) + 1%

14. Output Voltage Stability (Dynamic Load)

+ 3%

15. Output Frequency 50 Hz

16. Output Frequency Stability + 0.05HZ

17. Frequency Slew Rate 1 Hz/sec

18. Voltage Recovery time with in + 1% 20 msec

19. Overload capability

110% To withstand for atleast 60 minutes before going to Bypass.

125% To withstand for atleast 10 min before

going to Bypass.

150% To withstand for atleast 1 minute before going to Bypass.

20. Short circuit Current withstanding capability

Phase to Phase 180% for 1 Sec

Phase to neutral 300% for 1 Sec

21. Overall efficiency 50% to 100% Loading

94% or higher

22. Static Bypass Should be Inbuilt

Manual Bypass Should be Inbuilt

Galvanic Isolation Transformer Should be Inbuilt

Event Recording Facility Should be Inbuilt

23. Battery Type SMF GEL Type

24. Designed Life of Battery Atleast 10 years

25. Battery Back up 20 minutes on full load

26. Battery AH calculation sheet Must be Provided with the offer

27. Input Phase Reversal Correction Inbuilt / external

28. UPS Dimensions Supplier must Specify

29. Battery Bank Dimensions Supplier must Specify

30. Protections

Overload Should be available

Short Circuit Should be available

Input Low Voltage Should be available

Input High Voltage Should be available

Output Over Voltage Should be available

Output Low Voltage Should be available

Battery Over Charging Should be available

Battery over discharging Should be available

31 Control & Indications

Alarms for the following

Mains Failure Should be available

UPS Fault Should be available

Battery Discharged Should be available

Inverter OFF/Failed Should be available

Rectifier OFF/Failed Should be available

Over Temperature Should be available

Overload Should be available

Emergency Stop Should be available

32

INDICATION/DISPLAY

Input Voltage Should be available

Input Current per Phase Should be available

Input Frequency Should be available

Bypass input Voltage Should be available

Bypass Input Frequency Should be available

Inverter Output Voltage Should be available

Inverter output Current per phase Should be available

Inverter output in KVA and KW Should be available

Battery Voltage Should be available

Battery Charging Voltage Should be available

Battery Discharging Voltage Should be available

Battery back up remaining time Should be available

Overall System temperature Should be available

Inverter temperature Should be available

Rectifier Temperature Should be available

VIII. Other terms and conditions:

a. Delivery and installation: The system has to be delivered and installed at site (i.e NRSC Balanagar) as per our

requirements. Necessary moving equipments, crane, tools, manpower etc needed for

carrying out the job must be arranged by the supplier.

The supplier’s representative may inspect the site before delivery of the system and

suggest for special requirements, if any, regarding readiness, before the start of actual

installation.

b. Earth pits for UPS earthing:

Four nos of standard copper plate earth pits and Four nos of pipe earth pits are required

for neutral and system body grounding respectively (Details as per enclosed annexure).

The making of earth pits as per IS is also included in the scope of supply along with the

UPS system. The supplier should supply all the material like standard Electrolytic grade

copper plate (600 mm X 600 mm X 3mm), copper strip (25mm X 3 mm), GI pipe,

charcoal, salt, etc needed for making the required no of earth pits.

Labour required must be engaged by the supplier for digging of the pits and carrying out

all the works and final preparation of inspection chambers totally as per IS standards.

Two sets of pits as mentioned above must be made in to two separate grids, one for

neutral and the other grid for body. Inspection test link for each pit must also be provided

for measurement of individual earth pit resistances.

Copper strips from the pits to the system are to be laid and terminated on both the ends

after testing the pits for desired results (Approx length of each copper strip: 25 mtrs from

the pit to the system.)

The cost for making of earth pits and end terminations complete as per the above is

under the scope of UPS supplier.

c. Positioning and installation of the UPS system: The systems being supplied have to be installed after removing the old systems from the

installation site. The old 110 KVA UPS systems which are being replaced have to be

disconnected, removed and shifted from the service area and kept in the nearby room

which is about 50 mtrs, for clearing the site for installation of new systems. The new

systems have to be installed on this location. Necessary labour / tools / machinery

required must be arranged by the vendor for completing the shifting job.

d. Input and output cable terminations:

The input and output cables for UPS are to be supplied, laid and terminated by the

supplier. The Output Neutral from the UPS to the output panel has to be 2 runs of cable.

All the cables must necessarily be terminated with suitable crimping terminal ends and

glanded at both the ends.

Approx. length of input cable: 25 mtrs

Approx. length of output cable: 25 mtrs.

The cost of cables, glands, crimping terminal ends, supply and laying of cable, crimping,

hardware for terminations is in the scope of UPS supplier.

IX. Price breakup for all the items 1. 2 X 120 KVA parallel redundant UPS systems alongwith all the essential modules like

Battery breakers, battery cables and battery links etc 2 sets

2. Battery banks with stands 4 sets

(For 2 sets of 2 X 120 KVA UPS)

3. Input and output power cables with

associated items, hardware etc and laying charges 1 lot for 2 sets of UPS systems

4. Cost of making earth pits inclusive of all the material 1 lot for 2 sets of UPS systems

5. Installation and commissioning 1 lot for 2 sets of UPS systems

6.Taxes, duties etc (Split up of sales and service taxes for each item wherever

applicable to be clearly given)

Annexure-1. Typical Design of Pipe Earthing

Annexure-2. Typical Design of Plate Earthing