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COMBINED UNDERGROUND MEASUREMENT EQUIPMENT

Measurement equipment for medium voltage underground distribution used in systems from 13.8 kV to 34.5 kV, according to CFE G0000-90 specification. EPRECSA-CHUANGYIN trademark. Manufactured in Mexico.

Short Description     ECMS-3E-13.8-8400/120-10/5 ECMS-3E-13.8-8400/120-50/5 ECMS-3E-13.8-8400/120-200/5 ECMS-3E-23-14400/120-10/5 ECMS-3E-23-14400/120-50/5 ECMS-3E-23-14400/120-200/5 ECMS-3E-34.5-20125/115-10/5 ECMS-3E-34.5-20125/115-50/5 ECMS-3E-34.5-20125/115-200/5
Voltage Nominal System Voltage (r.m.s. value) 13.8 13.8 13.8 23 23 23 34.5 34.5 34.5
Nominal Voltage and dielectric test value Maximum Design Voltage of the Equipment in kV (r.m.s. value) 15.5 15.5 15.5 27 27 27 38 38 38
Installation altitude (m.a.s.l) hasta 2500 hasta 2500 hasta 2500 hasta 2500 hasta 2500 hasta 2500 hasta 2500 hasta 2500 hasta 2500
Nominal Withstand voltage at industrial frequency Kv (r.m.s. value) Internal 38 38 38 50 50 50 70 70 70
External 38 38 38 50 50 50 70 70 70
Nominal lightning Impulse withstand voltage kV (peak value) Internal 95 95 95 125 125 125 170 170 170
External 95 95 95 125 125 125 170 170 170
Unit ratio of each secundary 70 70 70 120 120 120 175.1 175.1 175.1
Transformer Ratio (V) (Uprim:Usec) one secundary 8400:120 8400:120 8400:120 14400:120 14400:120 14400:120 20125:115 20125:115 20125:115
Transformer ratio for billing (Single-winding) 10:5 50:5 200:5 10:5 50:5 200:5 10:5 50:5 200:5
Accuray and nominal burden for measurement and protection Accuracy Class Voltage 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2
Accuracy Class Current 0.2S 0.2S 0.2S 0.2S 0.2S 0.2S 0.2S 0.2S 0.2S
Protective burden range (VA) 0-50 0-50 0-50 0-50 0-50 0-50 0-50 0-50 0-50
Protective burden range (VA) 0-5 0-5 0-5 0-10 0-10 0-10 0-15 0-15 0-15
Overcurrent Factor 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2
Power Factor 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8

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