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| # | Company | Status |
|---|---|---|
| 1 | Admitted-Finance ERNAKULAM | ERNAKULAM | ERNAKULAM | KERALA | Admitted-Finance |
Tender Value
₹5.4 L
EMD Value
₹10,800
Closing Date
23 Sept 2022, 1:00 pmClosed
EXECUTIVE ENINEER
BSNL ELECTRICAL DIVISION ERNAKULAM
10 NOS INVERTER FOR 10 ISLANDS LAKHADWEEP
2022_BSNL_128904_1
2/EE/BSNL/ED/EKM/2022-23
Open Tender
Electrical Works
Item Rate
60 days
LAKHADWEEP
Please refer Tender documents.
2 documents required · 2 mandatory
₹590
Yes
BSNL
₹10,800
Yes
26 Sept 2022
14 Sept 2022
24 Sept 2022
14 Sept 2022
23 Sept 2022
14 Sept 2022
14 Sept 2022 - 23 Sept 2022
Amount
Supply, Installation, Testing and commissioning of 1.5KVA floor mounting type sine wave Inverter with SPWM /similar technology , capable of transfering a min. load 1050W irrespective of any load power factor, including transporting charges in the main land, main land to various lakshadweep islands, suitable to work Exchange DC supply working range 42V and 57V and single phase AC out put voltage 230v+/-1%.,50Hz +/-1% with with adequate protection for reverse Polarity at the battery Input, Input under /over Voltage, output over /under voltage ,output frequency range, over load protection,protection against surges and transients,with necessary alarms,indications ,tripping facilites and also as per specifications attached as required . The inverter shall have atleast 12 months manufacturer's / Supplier's warranty from the date of commissioining.
The inverter shall have the following features
i)Visual indications (LCD )for Load on Inverter,output Voltage and load in watts
ii) Audio Alarm Indications for : 1. Inverter output fault 2. Overload 3. Temperature fault 4. Low battery fault
iii)The full load efficiency of the inverter shall not be than 75% for input voltage 52.8V to 55.2V DC and an output voltage of 230V AC
iv) Input: The inverter shall be capable of working in DC Input Voltage between 42V and 57V.The DC supply to the inverter is from a battery floated power plant. The positive terminal of the input shall be taken as earthed
v) The Total line harmonic voltage distortion shall not be more than 3% in conformity with CIGRE's (International Conference on Large High Voltage Electric Systems) limits.
vi)The total current harmonic distortion, contributed by the unit at the output, shall not exceed 5% for all working conditions
vii)Inverter shall be capable of withstanding an overload of 120% for one minute and therafter immediate tripping above 120% of load.
Complete of all the above
Locations where invertes are to be installed
Agatti SES -1 No.
Amini-1 No.
Androth SES -1 No.
Kalpeni -1 No.
Kavaratti SES -1 No.
Kiltan SES -1 No.
Bitra -1 No.
Chetlet -1 No.
Kadamath -1 No.
Minicoy SES -1 No.
stage.html
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tech_eval.pdf
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