Instrument Transformers
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Instrument Transformers Energizing the World since 1979

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CEI - UNEL Phase to Phase VT 16 CEI - UNEL Phase to Ground VT 18 Fuse - Holder Phase to Ground VT 24

Our Philosophy Tesar transforms the Wind, the Sun and the Water in renewable Energy. Tesar, in order to improve its redditivity and competitivity, has in force a Quality Operating System UNI EN ISO 9001. In this way, all the activities related to the proper execution of the jobs, are carried out in the full respect of the wealth safeguard as well as of the ambient. Highest Quality

Product Overview CEI-UNEL CT CEI-UNEL Phase to Phase VT CEI-UNEL Phase to Ground VT DIN Phase to Phase VT / Phase to Ground VT Fuse-Holder Phase to Ground VT

General Characteristics General Characteristics • Dimensions according to CEI-UNEL 21009 std • Manufactured and tested acc. to IEC 61869-1/2 • Rated Insulation level up to 36 kV • Frequency 50 or 60 Hz • Rated primary current (Ipr) Single primary current from 5 to 2500 A Double primary current Up to 2 x 300 A change on prim. winding Up to 2 x 1250 A change on sec. winding • Rated secondary current (Isr) 5 A • Short-time current (Ith) up to 40 kA x 1s • Rated dynamic current (Idyn) 2.5 x Ith • Number of secondary 1 or 2 • Security factor ≤ 5 or ≤ 10 • Indoor installation • Accuracy class for...

General Characteristics General Characteristics • Compact type suitable for METAL - CLAD switchboards • Manufactured and tested acc. to IEC 61869-1/2 • Rated Insulation level up to 24 kV • Frequency 50 or 60 Hz • Rated primary current (Ipr) Single primary current from 5 to 1250 A Double primary current Up to 2 x 300 A change on prim. winding Up to 2 x 600 A change on sec. winding • Rated secondary current (Isr) 5 A • Short-time current (Ith) up to 40 kA x 1s • Rated dynamic current (Idyn) 2.5 x Ith • Number of secondary 1 or 2 • Security factor ≤ 5 or ≤ 10 • Indoor installation • Accuracy...

General Characteristics General Characteristics • Dimensions according to DIN 42600-8 std. • Manufactured and tested acc. to IEC 61869-1/2 • Rated Insulation level up to 24 kV • Frequency 50 or 60 Hz • Rated primary current (Ipr) Single primary current from 5 to 2500 A Double primary current Up to 2 x 300 A change on prim. winding Up to 2 x 1250 A change on sec. winding • Rated secondary current (Isr) 5 A • Short-time current (Ith) up to 40 kA x 1s • Rated dynamic current (Idyn) 2.5 x Ith • Number of secondary 1 or 2 • Security factor ≤ 5 or ≤ 10 • Indoor installation • Sec. terminal board...

Sec. Terminal board acc. to DIN Standard Sec. Terminal Board Standard execution Execution with wings

Overall Dimensions Sec. Terminal board acc. to DIN Standard Sec. Terminal Board Standard execution Execution with wings

General Characteristics • Manufactured and tested acc. to IEC 61869-1/2 • Rated Insulation level 0,72 kV • Frequency 50 or 60 Hz • Rated primary current (Ipr) Single primary current from 50 to 20.000 A • Rated secondary current (Isr) 5 A • Short-time current (Ith) up to 40 kA x 1s • Rated dynamic current (Idyn) 2.5 x Ith • Number of secondary 1 • Security factor < 5 or < 10 • Indoor installation • Accuracy class for measure: 0,5 - 0,5s - 0,2 - 0,2s • Accuracy class for protection: 5P10 - 5P20 - 5P30 On Request • Second secondary • Rated secondary current 1A • Terminal cover • outdoor...

On Request • Second secondary • Double primary ratio • Sealable terminal cover • Rated secondary voltage 110 V General Characteristics • Dimensions according to CEI-UNEL 21008 std. • Manufactured and tested acc. to IEC 61869-1/3 • Rated Insulation level up to 36 kV • Frequency 50 or 60 Hz • Rated voltage factor 1,2 continuous • Number of secondary 1 • Rated secondary voltage 100 V • Indoor installation • Accuracy class for measure: 0,5 - 0,2 • Accuracy class for protection: 3P-6P Primary Terminals Double Primary Voltage Low Ratio

General Characteristics • Dimensions according to CEI-UNEL 21007 std. • Manufactured and tested acc. to IEC 61869-1/3 • Rated Insulation level up to 36 kV • Frequency 50 or 60 Hz • Rated voltage factor 1,2 continuous and 1,9/8h • Number of secondaries 2 • Rated secondary voltage: Measuring or protective winding: 100:V3 V Residual voltage winding: 100:3 V • Indoor installation • Accuracy class for measure: 0,5 - 0,2 • Accuracy class for protection: 3P-6P On Request • Third secondary • Double primary ratio • Sealable terminal cover • Rated secondary voltage: 110:V3 V - 110:3 V Double Primary...

General Characteristics On Request • Dimensions according to DIN 42600-9 std. • Second secondary • Manufactured and tested acc. to IEC 61869-1/3 • Double primary ratio • Rated Insulation level up to 24 kV • Standard sec. terminal board • Frequency 50 or 60 Hz • Rated secondary voltage 110 V • Rated voltage factor 1,2 continuous • Number of secondary 1 • Rated secondary voltage 100 V • Indoor installation • Sec. terminal board acc. to DIN • Accuracy class for measure: 0,5 - 0,2 • Accuracy class for protection: 3P-6P High Ratio

General Characteristics • Dimensions according to DIN 42600-9 std. • Manufactured and tested acc. to IEC 61869-1/3 • Rated Insulation level up to 24 kV • Frequency 50 or 60 Hz • Rated voltage factor 1,2 continuous and 1,9/8h • Number of secondary 2 • Rated secondary voltage: Measuring or protective winding: 100:V3 V Residual voltage winding: 100:3 V • Indoor installation • Sec. terminal board acc. to DIN • Accuracy class for measure: 0,5 - 0,2 • Accuracy class for protection: 3P-6P Primary Terminals > C On Request • Second secondary • Double primary ratio • Standard sec. terminal board •...