WBPWD/SEKHEC/KSHED/eNIT16 /24-25/ 2nd Call

Amount

SITC OF True Modular UPS with Hot Swapable Units of different ratings having following specifications as mentioned below,

60 KVA (3 Ph input& 3 Ph output)

20 KVA (3 Ph input& 1 Ph output)

INPUT:-

Input voltage 415V, 3 phases, 3 or 4 wires

Input voltage tolerance 305 to 480Vac at 100% load

Input frequency 50 Hz

Input frequency tolerance 50HZ +/-10Hz(40hz to 60Hz)

Current THD <3%

Control Fully Digital, DSP PWM technology

Event Log The Event Log shall store up to 2000 in the front display panel

Topology Level 3 or better

Self-Capacity test Full load Capacity test of the UPS at site without connecting any external load.

Inbuilt or external Isolation Transformer and supply through UPS OEM only

OUTPUT:

Nominal Module full load rating KVA/KW A) 20KVA=18KW or better B) 10KVA= 9KW or better

Rated voltage 400V 3Ph /230v 1Ph

Output power factor range 0.9 lagging to unity without any KVA derating

Output voltage harmonics THDV 1.5% for liner load and 4.5% for non-liner load

Crest Factor 03:01:00

Overload rating 105% for 60 minutes 125% for 10 minutes 150% for 60 seconds

Successive Overloads sustainability: UPS System can withstand any number of repetitive/ multiple overloads occurring in quick succession of few seconds.

Inbuilt Manual by pass switch Required

Inbuilt Static by pass switch Required

Emergency Stop Emergency Stop Button on its Front panel.

Acoustic Noise (At 1 meter from UPS) Max 60 dbA(from 1 M)

DC CHARACTERISTICS

Nominal DC bus voltage Min 360V

Charge Current (Min.) Built-in min 12A (for 30/40KVA) 25A (60/80KVA) or better. External charger is not acceptable.

Battery Make EXIDE/AMARARAJA make

Type 12V SMF

Compatibility Compatible with SMF, Tubular, Ni-Cd, Li-Ion Battery

Battery block per string Maximum 50nos. Variable DC bus it can support at least variation of 10 nos of battery

Battery backup time 30min

Battery capacity

For 60 KVA, Min VAH capacity 57600, [required no of 12 V 120AH (mimimum) batteries]

For 20 KVA, Min VAH capacity 20160, [required no of 12 V 42AH (minimum) batteris]

Battery isolation Battery circuit breaker

Automatic Battery testing Automatic battery testing from front display

Battery cables and rack UPS to Battery bank, should be connected with suitably rated copper cables and suitable size of metal rack should be provided

SNMP/MODBUS communication facility Required

CONTROLS

Charger input Isolator

Battery circuit breaker (mounted separately in its own enclosure)

Inverter output Isolator

Bypass line Isolator

Maintenance Bypass Isolator

Alarm acknowledge / Reset button

Inverter On-Off Push button for Manual switching On/Off of the Inverter

Emergency off push button

MEASURING INSTRUMENTS

LCD panel for Measuring Output voltages, Output currents and Frequency, Battery Voltage and Charging / Discharging current.

LCD panel displays status of the Battery charge status (in %).

Display- Digital LCD HMI type touch screen

PROTECTIONS

RC surge suppressor

Sustained under voltage on input side

Phase loss on input side.

Negative sequence on input side & bypass

Semiconductor fuses in the lines for rectifier thyristors

Snubber circuit for device dv/dt protection

Charger input current limit

Battery current limit

DC over voltage

Low battery

Overload

Over temperature for the inverter

HRC fuses in the control circuit

INDICATIONS (ALARMS & Warnings)

Inverter Failure

Overload (if load exceeds 100%)

Overload shutdown

Emergency shutdown

Equipment over temperature

Maintenance Bypass ON

DC over voltage

Low battery

Battery circuit breaker open

Battery on load

Mains failure

Rectifier Failed or Off

Inverter Unsynchronized

Load on bypass

Output voltage error

Environmental Conditions:

Panel type Floor mounted front access only

Operating temperature 0 – 45 deg.C continuous

Relative humidity < 90 % ( 20 deg. C.) non-condensing type

Altitude 1500 m from MSL without derating

Storage temp. From 0 to + 70 deg. C.

Product Brochures Original product brochure of the UPS battery should be submitted along with offer. Proto type system is not acceptable.

Certification ISO 9001,ISO 14001,ISO 45001 certified

UPS make:- Numeric/ Vertiv/ Switching AVO/ Delta/ Fuji Electric/Power One

TERMS & CONDITIONS

The Agency must procure the materials from the Manufacturer / OEM or from their authorised sales channel so that the standard warranty / support of the Manufacturer / OEM becomes applicable to the products to be delivered and installed by them.

Documents that authenticates such procurement from the Manufacturer / OEM or from their authorized sales channel and standard warranty / support should be sent from the e-mail of the Manufacturer / OEM / authorized sales channel to the e-mail of Engineer-in-Charge and hard copy of it to be submitted during execution, of work/submission of bill.

If any refurbished material is supplied and installed, penal action will be taken as per existing rules

Defect Liability period 1 (One) Year

(Rates should be Quoted inclusive of all taxes & duities and L.W.C. @ 1% as applicable)

C. CHOWHDURY & CO. (BID ID -5966691)

MEGHJIT POWER SOLUTIONS LLP (BID ID -5948797)

switching avo Electro Power Ltd (BID ID -5935043)