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ANNEXURE 1 Technical Specifications for SMPS Modules 1. Scope of Supply SMPS Modules Quantity: 300 Nos. 2. Qualification of Bidders The bidder should have past experiences in supplying similar items to reputed firms including public sectors and R&D institutes, the details of which shall be submitted along with the quotation. Offer will be rejected, if proof of past experience (copies of purchase orders) of supplying similar items is not provided along with quotation. 3. Technical Specifications Table 1: Technical specifications Sr. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Technical Parameters AC input voltage range Power factor Inrush surge current Hold up time Output voltage Output current Residual ripple Efficiency Line regulation Load regulation Connection type Maximum power dissipation Dimensions Monitoring Signals Values 3 phase AC 380-480V, (48-62 Hz) ≥ 0.85 (at 480 V AC) at 48V DC, 20A ≤ 6 A (peak) (480 V AC) ≥ 20 ms (400 V AC) DC 48-54 V (48 V nominal value), user adjustable 20 A (continuous) at 48 V output ≤ 200 mVPP (20 Hz to 20 MHz, 50 Ω) at 48V, 20A ≥ 95 % at full rated output ≤ 20 mV, for 350 V to 500 V ≤ 50 mV screw / spring cage (terminal block) conforming IP 20 ≤ 20 W (No load) / ≤ 50 W (nominal load ) ≤ Width 120 mm, Height 130 mm, Depth 130 mm DC- OK relay – contact rating 30V, 1 A (indicating output voltage drop by more than 10%), Overload indicator 0 °C to 60 °C and 5-95% r. H. (non condensing) Horizontal DIN rail NS 35 Conforming to EN 60950-1 Conforming to EN 61000-4-3 in 100 MHz to 1 GHz Conforming to EN 61000-6-3 and EN61000-6-4 15 16 17 18 19 Operational ambience Mounting position Electrical safety EMC Immunity to RF Electromagnetic emission 20 Protection Input fuse (internal) protected. Should meet IP20 standard 21 Repetitive pulse loading Capable of pulse loading up to 150% of nominal current for minimum 40% duty cycle and 4 s pulse duration 22 Warranty Minimum 2 years from the date of supply * All specifications shall apply to the operation on 48 V DC output. Page 1 of 3 4. Application These DC power supplies will be employed to power RF amplifier. As the supplies will be used in RF environment their EMI/EMC specifications are important. These supplies will be used in an enclosure and is intended for industrial control and instrumentation equipment. 5. Acceptance criteria a) Advance sample will be required for technical approval at our site. This sample will be used to bias one UHF solid-state RF amplifier (with RF output power of around 500 W). Technical evaluation and approval will be done for the supplied sample with the help of standard measuring equipment like oscilloscope, spectrum analyser and power sensors. Supplier should deliver balance quantity only after this approval. The balance DC power supplies will be accepted at our site after making physical inspection and electrical test/ measurement. It will be tested for confirming values of the parameters as per the tender specifications. b) Supplier shall replace defective items (if found after testing) at site, without any additional cost. Payment will be made within 30 days after verifying technical compliance of the item as per tender specifications. 6. Technical Particulars for inclusion in the offer The bidder shall compulsorily mention make, model and values for each and every parameter, mentioned under the following table, in the quotation. It should be duly certified by them, along with supporting documents, if any. Evaluation of the bids will be based on this table. Table 2: Technical Particulars for inclusion in quoted offer/ Compliance Sheet Sr. Technical Parameters 1 2 3 Make of quoted item Model of quoted item 4 5 6 7 8 9 AC input voltage range Power factor Inrush surge current Hold up time Output voltage Output current Residual ripple 13 Efficiency Line regulation Load regulation Connection type 14 Maximum power 10 11 12 Values Bidders Quoted Parameters with Compliance/ Deviations 3 phase AC 380-480V, (48-62 Hz) ≥ 0.85 (at 480 V AC) at 48V DC, 20A ≤ 6 A (peak) (480 V AC) ≥ 20 ms (400 V AC) DC 48-54 V (48 V nominal value), user adjustable 20 A (continuous) at 48 V output ≤ 200 mVPP (20 Hz to 20 MHz, 50 Ω) at 48V, 20A ≥ 95 % at full rated output ≤ 20 mV, for 350 V to 500 V ≤ 50 mV screw / spring cage (terminal block) conforming IP 20 ≤ 20 W (No load) / ≤ 50 W Page 2 of 3 15 dissipation Dimensions 16 Monitoring Signals 17 Operational ambience 18 Mounting position 19 Electrical safety EMC Immunity to RF 20 22 Electromagnetic emission Protection 23 Repetitive pulse loading 24 Warranty 25 Whether Test result will be included with final delivery? Whether Item will be shipped in OEM pack? 21 26 (nominal load ) ≤ Width 120 mm, Height 130 mm, Depth 130 mm DC- OK relay – contact rating 30V, 1 A (indicating output voltage drop by more than 10%), Overload indicator 0 °C to 60 °C and 5-95% r. H. (non condensing) Horizontal DIN rail NS 35 Conforming to EN 60950-1 Conforming to EN 61000-4-3 in 100 MHz to 1 GHz Conforming to EN 61000-6-3 and EN61000-6-4 Input fuse (internal) protected. Should meet IP20 standard Capable of pulse loading up to 150% of nominal current for minimum 40% duty cycle and 4 s pulse duration Minimum 2 years from the date of supply 7. General conditions a) Supplier should deliver items in properly sealed OEM packing. b) Data sheet of quoted item from original manufacturer shall be attached in the offer. c) The supplier has to submit documents (in English) related to DC power supply operating instructions, control and protection features and interfacing details. Page 3 of 3