Bharat Sanchar Nigam Limited-BSNL has published Augumentation Of Satellite Bw In Lakshadeep Islands. Sh - Sitc Of 10 Nos.1.5 Kva Inverters ( Recall ) . Submission Date for this Tender is 23-09-2022. Inverters Tenders in Ernakulam Kerala. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Supply,Installation, Testing and commissioningof1.5KVA floor mounting typesine 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 57Vand single phase AC out put voltage 230v+/-1%.,50Hz +/-1% withwith adequate protectionfor 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 attachedas required . The invertershall have atleast 12 months manufacturer"s / Supplier"swarranty from the date of commissioining. |
| 2 | The inverter shall have the following features |
| 3 | i)Visual indications (LCD )forLoad on Inverter,output Voltageand load in watts |
| 4 | ii) Audio Alarm Indications for : 1. Inverter output fault 2.Overload 3. Temperature fault 4. Low battery fault |
| 5 | 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 |
| 6 | 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 |
| 7 | 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. |
| 8 | vi)The total current harmonic distortion, contributed by the unit at the output, shall not exceed 5% for all working conditions |
| 9 | vii)Inverter shallbe capable of withstanding an overload of 120% for one minute and therafter immediate tripping above 120% of load. |
| 10 | Complete of all the above |
| 11 | Locations where invertes are to be installed |
| 12 | Agatti SES -1 No. |
| 13 | Amini-1 No. |
| 14 | Androth SES -1 No. |
| 15 | Kalpeni -1 No. |
| 16 | Kavaratti SES -1 No. |
| 17 | Kiltan SES -1 No. |
| 18 | Bitra -1 No. |
| 19 | Chetlet -1 No. |
| 20 | Kadamath -1 No. |
| 21 | Minicoy SES -1 No. |
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