PROCUREMENT OF 04 NOS 220 KV OUTDOOR TYPE CURRENT TRANSFORMER AS MAINTENANCE SPARE FOR DPPS, DPL

Procurement of 04 nos. 220 KV Outdoor Type Current Transformer as maintenance spare for DPPS, DPL.

220 KV, Outdoor Type Current Transformer: 5 Core, Ratio: 1600 – 1000 / 1-1-1-1-1 A, Technical Particulars: 1st Core: 1600 – 1000 / 1 A, 20 VA, Class 0.2S, ISF < 5 Balance Cores: 1600 – 1000 / 1 A, PS Class KPV: 1000 V, Excitation Current at VK < 50 mA, Secondary Resistance at 75 °C < 8 Ω (at 1000 / 1 Tap) Standard: IS: 2705 / IEC: 60044–1 / IEC: 61869, Highest System Voltage: 245 KV, Insulation Level: 460 kV / 1050 KVP, Frequency: 50 Hz, Short Time Current Rating: 40 KA for 3 Seconds Extended Current: 120 %, Insulator: Porcelain with Creepage 25 mm / KV Terminal Connectors: Both side terminal connectors suitable for CT stud to Twin Moose ACSR conductor. (Universal Take-Off)

220 KV, Outdoor Type Current Transformer: 5 Core, Ratio: 800 – 400 – 200 / 1-1-1-1-1 A, Technical Particulars: 1st Core: 800-400- 200 / 1 A, 20 VA, Class 0.2S, ISF < 5 Balance Cores: 800-400- 200 / 1 A, PS Class KPV: 1200 V (at highest tap), Excitation Current at VK < 60 mA (at lowest tap) Secondary Resistance at 75°C < 5Ω (at highest tap) Standard: IS: 2705 / IEC: 60044-1 / IEC: 61869, Highest System Voltage: 245 KV, Insulation Level: 460 KV / 1050 KVP Frequency: 50 Hz, Short Time Current Rating: 40 KA for 3 Seconds Extended Current: 120 %, Insulator: Porcelain with Creepage 25 mm / KV Terminal Connectors: Both side terminal connectors suitable for CT stud to Twin Moose ACSR conductor. (Universal Take-Off)