1.2 Data Schedule LTB245E1

ABBData schedule: SF 6 Circuit Breaker

Tender: 13Q1925303−1 , Item: 70

General dataType LTB 245E1Type of operation 1 Pole OperationNumber of poles 3Min temperature °C −25Max temperature °C 40Max altitude m 1000

Ratings and guaranteed performance in accordance with IEC 62271−100

Rated voltage kV 245

Rated insulation levelsRated lightning impulse withstand voltage to earth kVpeak 1050 across the open circuit breaker kVpeak 1050Rated switching impulse withstand voltage to earth kVpeak − across the open circuit breaker kVpeak −Rated power frequency withstand voltage to earth kV 460 across the open circuit breaker kV 460

Rated frequency Hz 60Rated normal current A 2000Rated short−circuit breaking current kA 40DC component % 60First pole−to−clear factor 1.5Rated transient recovery voltage for terminal faults kVpeak 420

Rated characteristics for short line faultPeak factor 1.6RRRV factor kV/µs/kA 0.24Surge impedance Ohm 450

Rated peak making current kApeak 104Rated duration of short−circuit current s 3

Rated out of phase characteristicsOut of phase making and breaking current kA 10.0Voltage factor 2

Rated line charging breaking current A 125Rated cable charging breaking current A 250

Rated operating sequence O−0.3s−CO−3min−COMechanical endurance class M2

Operating timesOpening time ms 17 ±2Break time ms 40Closing time ms <28

Constructional featuresNumber of breaks per pole 1Gas mixture 0.8 MPa SF6Total mass of gas kg 26Volume of gas liter 3 x 158Max. working pressure MPa (gauge) 0.80Filling pressure at +20°C MPa (abs) 0.80Alarm pressure MPa (abs) 0.72Blocking pressure MPa (abs) 0.70

Bursting disc No

HV terminal IEC(40) 9−hole +NEMA(44.5) 4−hole

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Heater in packing boxes Yes

Breaker position indication (O−I) ABIERTO−CERRADOYellow−Yellow

Dimension print 1HSB435452M202Seismic/Reinforced 0.5g IEC 62271−300

InsulatorsType of insulators and colour Brown porcelainMin nominal creepage distance phase−to−earth mm 6523Min nominal creepage distance across open breaker mm 6370

Operating mechanismNumber of drives 3Motor charged spring operating mechanism BLK 222Whether fixed trip or trip−free (IEC Publ.60050(441)) Trip−freeOperating voltage VDC 220Heater voltage VAC 220Motor voltage VDC 220

Power required at rated supply voltage byClosing coil W 200Opening coil W 200Motor kW 0.9Heating element, continuously W 70Heating elements, connected by thermostat W 140

Number of auxiliary contacts making and breaking 12NO+12NCManual trip Yes, internal

Type of terminals supply Entrelec M6/8 STA(disconnectable)

Type of terminals signals Entrelec M4/6TCS resistor YES without resistorCircuit diagram 1HSB543212−GKFTCS resistor 'ICC' YES without resistorCircuit diagram 'ICC' 1HSB543212−GKE

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