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| Tender ID | 4550358 |
|---|---|
| Organisation Name | Military Engineer Services |
| Tender Brief | Corrigendum : Provision Voltage Stabilizer At Mmpu Area At Af Stn Gwalior |
| Last Date For Submission | 7th Jul, 2026 |
| Opening Date | 14 Jul, 2026 |
| Document Cost | 500.00 |
|---|---|
| EMD | 88000.00 |
| Estimated Cost | 4400000.00 |
| City | Gwalior |
|---|---|
| State | Madhya Pradesh |
| # | Item | Qty | Units |
|---|---|---|---|
| 1 | Supply, installation, testing, and commissioning of Servo controlled voltage stabilizer (conforming to BIS 9815 (Part-I) :1994, reaffirmation 2019 latest version). Three phase, four wire (RYBN), 50 Hz, Naturally Oil cooled, indoor, unbalanced type, cooper wound, metallic body duly power coated with lifting Hooks two nos, digital display type, relay free, smooth and silent operation with 1st filling of Transformer oil up to level, Over load and short circuit protection, high/low voltage cut off, bypass arrangement, having the following, (a) Capacity 500 KVA (b) Type - Suitable for unbalanced load and unbalanced input (c) Input voltage - 300V-480V, Input frequency 50 Hz (d) Output voltage - stabilized at any deigned/ desired voltage 415/ +- 1 % (e) Rated frequency - 50 Hz (f) Wave form distortion - Nil (g) Response time - not to exceed 20 milliseconds (h) Sensitivity - (+/-) 1% U) Rate of correction- Not less than 6 Volts per second between phase and neutral (k) Efficiency - more than 95% (I) Type of load - three-phase, unbalanced type (m) Metering - Digital display Voltmeter/ Ammeter with multi-functional meter (n) Operating temperature - For indoor use up to max ambient temp + 55 C (o) Dimmer rating Amp (p) Dimension of tanks - As per the standard (q) Oil capacity-As per the standard (r) Class of insulation - Class F (s) Mode of operation: Automatic/ manual (t) Winding Temperature rise - Max 55 C (10 C above operating temp) (u) Transformer oil -IS 335 marked (v) Core - CRGO M4 Grade/CRNO (Cold Roll Grain Oriented)/ (Cold Rolled Non-Oriented) (w) Auto transformer (Variac) -100 percent Copper wound Electrolytic Grade (x) Losses - As per IS Norms (y) Power Factor- Not less than 0.95 (z) Protection - (i) Overload protections (ii) Short Circuit protections (iii) High/Low voltage cut off (iv) By-pass arrangement in case of Emergency (v) Single-phase sequence change /phase fail protection (vi) Earth fault protection (aa) Standard Fitting & Accessories, e.g., marking plate, lifting lugs, Cl Roll, earthing terminals, etc., cable box. Note:- The cost of the necessary PCC base as per the manufacturer's recommendation is deemed to be included in the quoted rate. | 1.00 | Each |
| 2 | All as per the above Item but 200 KVA Capacity. | 2.00 | Each |
| 3 | All as per the above Item but 400 KVA Capacity. | 2.00 | Each |
| 4 | Supply Installation Testing and commisioning of indoor type Isolation transformer of capacity 25 KVA,, Three phase ,50 Hz , Copper wound , oil cooled , class of insulation A ,metallic body duly powder coated designed for input Voltage range 415+-5% and output voltage range 415+-5% ,Ratio 1:1 , Vector Group :Dyn 11, Delta- star , Indoor type with suitable IP protection (CPRI Approval Required) with first filling of transformer oil of requisite dielectric strength up to level , efficiency more than 95 % , separate neutral bushing shall be brought out for earthing Potential difference between neutral to earth less than one volt with all standard fittings like digital temperature meter , adequate number of cooling radiators , lifting hooks one set , Earthing terminal two nos complete with Over load /short circuit protection complete all as specified and directed. | 1.00 | Each |
| 5 | Supply, laying and testing cable XLPE Insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables heavy duty) 1100 Volts grade with stranded aluminium conductor of size 185 sq mm 3.5 core complete all as specified and directed. | 30.00 | RM |
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