Providing Automatic controlled Servo Stabilizer at Keelavathiyam Head works at CWSS to 674 habs

Design Manufacture, delivery, installation, testing & commissioning of automatic servo stabilizer Make: Wavestek/Faith Power/Equivalent including oil cooled floor mounted type weather terminated dust proof powder coated Oil tank with M.V automatic control panel board of 14 SWG M.S. Sheet and MS Angle with enclosure, required no's of copper multi strand wire winding with required current ratings including user inter face LED display, low voltage and high voltage cut off, Auto restart with time delay, over load relay, single phase preventer, and required no's of 8 pin bottle type persistance relays for controlling of safety measures with required number of on/off switches, indication lamps for indicating present position and 96mmx96mm volt meter digital type and 96mmx96mm Ammeter digital type and internal panel wiring suitable for low voltage operation at the wide range of 360V to 500V of connected induction motor etc,complete and as directed by the departmental officers .

Type: Automatic Servo-Controlled Voltage Stabilizer (Microprocessor-based); Phase: Three Phase, Four Wire; Input Voltage Range: 245 V to 500 V (Line-to-Line); Output Voltage: 415 V ±1%; Frequency: 50 Hz ±3%; Correction Type: Independent phase correction (three single-phase buck-boost transformers); Cooling: Oil-cooled (ONAN); Duty: Continuous duty, 24×7 operation; Efficiency: Minimum 98% at full load; Response Time: Better than 20 V/second; Output Voltage Accuracy: ±1%; Waveform Distortion: Nil (no harmonic distortion); Insulation Class: Class F or better; Protection Class: IP-54 for outdoor installation confirming to IS/IEC/60529; Ambient Temperature: 0°C to 50°C; Relative Humidity: Up to 95% non-condensing;Protection Features: Input over-voltage protection; Input under-voltage protection; Output over-voltage cut-off; Output under-voltage cut-off; Single phasing protection; Phase reversal protection; Phase imbalance protection;

Suitable rated MCCB at input with overload and Short-circuit protection; Surge protection; Motor overload alarm; Emergency bypass arrangement; Manual/Auto selector switch; Suitable rated contactor at output; Metering and Indications: Digital multifunction meter displaying input/output voltage, current, frequency, kW, kVA and power factor; LED indication for Healthy, High Voltage, Low Voltage, Trip and Bypass; Run hour meter; Construction: Copper-wound buck-boost transformer, Copper-wound dimmer (variable) transformer; Carbon brush assembly with servo motor; Microprocessor-based controller; Powder-coated CRCA sheet enclosure- 2.0mm thick for body and door; The Base frame shall be fabricated from 3.0mm thick CRCA sheet or suitable structural steel sections.; Suitable earthing terminals; Copper winding for all transformers. Type-tested design: Compliance with IS 9815 (Servo Voltage Stabilizers) and relevant IS/IEC standards for transformers control gear, and protection; Warranty: Minimum 24 months from commissioning or 30 months from supply, whichever is earlier.

Supply and delivery of LT cables 3,3.5,4 core 1.1 kv grade armoured aluminium conductor cross linked poly ethylene insulated pvc sheathed cables conforming to is 7098 (part i)/1988 and as amended thereafter with ISI marking

95 Sq.mm/ 3 core Cable for Infiltration Well

Labour charges for laying of the above cable

For laying below GL including earth work

Labour charges for Jointing of above L.T. cables - 3, 3.5, 4 core 1.1 kv grade armoured aluminium conductor cable conforming to is 1554 part i and as amended thereafter with ISI marking.

95 Sq.mm/ 3 core Cable for Infiltration Well

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