Quotation Are Invited For Supply Of Panel Enclosure

Quotation Are Invited For Supply Of Panel Enclosure. Pr-1032302136 ( Plz Refer Attach. In Stock And Price ) Installation Of Redundant 110V Dc Power Supply System At Palm Jumeirah Ro P Lant. 1.#Brief Scope Of Work: This Enquiry Covers Supply Of Following Including Their Installation, Testing And Commissioning Of R Ectifier Unit For Parallel Operation With The Existing Rectifier Via Coupling Diode Arrangement As Shown In Annexure- 1. A.#Enclosur E Panel (Size: 80Cms X 60.5Cms X 180Cms) B.#Batteries, C.#Mcbs As Mentioned In Annexure- 2 D.#Auxiliary Relays E.#Coupling Diode Uni Ts, Two Sets 2.#The Rectifier Unit As Shown Below, Type- B4787-79, 18 Amps, Input Voltage: 230 Vac +15%/-20%, 50Hz, 1-Phase, Output Voltage: 100 V # 145 V Dc, Make- Schaefer, Along With Earth Fault Monitoring Module And Other Accessories Will Be Supplied By Dewa. The Output Of The Rectifier Unit Shall Be Connected To The Existing Rectifier Unit Output Such That Existing Rectifier U Nit And New Rectifier Unit Shall Operate In Continuous Parallel Condition (Redundant) Through Separate Coupling Diode In +Ve And -Ve Terminals Each For Both Rectifiers In Their Output Circuit. Please Refer Annexure- 1 For The Arrangement. 3.#Enclosure Panel (Size : 80Cms X 60.5Cms X 180Cms) For Housing Rectifier Unit As Shown Above, Its Accessories, And Batteries Shall Be Supplied By The Contr Actor. The Size Of The Panel Shall Be Verified Through Site Visit. Enclosure Panel Shall Have Two Compartments. Upper Compartment Shall Be For Rectifier Unit And All Other Accessories Such As Mcbs, Auxiliary Relays, Terminal Blocks Etc. And Lower Compartment Shall Be Suitable For Housing 9Nos. Batteries. 4.#Batteries, 12V Dc, 65 Ah, Qty.- 9Nos. Valve Regulated Battery Cells, Type- Swl 1850, Make- Yuasa Along With Accessories Such As Connecting Links, Caps Etc. 5.#New Rectifier Panel Shall Have Following Arrangement On Th E Front Door, A.#Voltmeter For Incoming Ac Voltage (0-300 V Ac) B.#Voltmeter Outgoing Dc Voltage (0-200 V Dc) C.#Ammeter For Dc Load Current (0-25 Amps) D.#Indication Lamprectifier Fault E.#Indication Lamp- Dc Voltage Low F.#Indication Lamp- Mcb Trip G.#Indicati On Lamp- Earth Fault H.#Indication Lampinput Supply Voltage Ok 6.#Mcbs For Incoming Ac Power Supply, For Outgoing Rectifier Output Dc Supply, For Outgoing Dc Supply Feeders Shall Be Rated As Mentioned In The Annexure- 2. Existing Mcbs Shall Be Replaced By New Mcbs And Shall Be Installed At Existing Rectifier Panel. All The Mcbs Shall Have One Auxiliary Contacts For Use To Initiate An Alarm. All The Auxiliary Contacts Shall Be Wired In Parallel For Initiating #Mcb Trip# Alarm With An Indication On The Front Door Of The Rectifier Panel. 7.#Auxiliary Relays As Per Existing Arrangements. 8.#Supply And Installation Of Coupling Diode Units, For +Ve And - Ve Terminals Of Both The Rectifier Output Circuits, Shall Be In Contractor#S Scope Of Work. The Coupling Diode Shall Be Rated For S Afely Handling Rectifier Output Of 110V Dc, 18Amps. 9.#Laying And Termination Of The Power Cables And Control Cables At Both Ends In Cluding Gland Works Shall Be In Contractor#S Scope Of Work. Qty: 1 Standard Terms & Conditions 1) Prices Should Be Ddp Delivery Duty Paid At Dewa Stores. 2) Quotation To Be Submitted Only In Local Currency U.A.E Dirhams 3) Dewa Standard Payment Terms Is 30 Days Credit From The Date Of Acceptance Of Material 4) No Dewa Staff Or His Or Her Relatives Up To Third Degree Should Have Ownership Or Partnership In Your Company, And Your Participation In Dewa Tenders / Rfqs Should Not Constitute A Conflict Or Perceived Conflict Of Interest. Supplier Registration: Https://Srm.Dewa.Gov.Ae/Irj/Portal/Anonymous/Regis Tender Link : Https://Www.Dewa.Gov.Ae/Api/Rfxdownload/Get/2332301417