Distribution Requirements

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BASIC REQUIREMENTS FOR DISTRIBUTION METERS
1 VOLTAGE RATING 240V/415V
2 OPERATING VOLTAGE -40% to + 10% Vref
3 CURRENT RATING 5(60)A
4 FREQUENCY 50Hz ± 2%
5 SYSTEM Single or Three Phase
6 SECONDARY VOLTAGE VARIATIONS (85 – 120)/(50 – 70) V
7 INTERNAL BATTERY OR AN EQUIVALENT GIVING TOTAL STAND-BY LIFE OF 10 YEARS (MINIMUM) Lithium CR2025 – 1HF
8 AUXILIARY BATTERY FOR DOWNLOADING STORED DATA. 12 D.C. Supply
9 ACCURACY CLASS 0.5s for 33KV, 0.2s for 132 and 330KV
10 STORAGE TEMPERATURE Up to 700C
11 LIFE SPAN 10 Years
12 RELATIVE HUMIDITY. NON-CONDENSING Up to 96% at 45o C
13 BURDEN 2VA/phase in voltage circuit and1VA/phase in current circuit.
METER TYPES:

  • 3PH 4W CT OPERATED STATIC ENERGY METER
  • 3PHASE 4WIRE 10(100) AMPS (WHOLE CURRENT) ELECTRONIC CREDIT METER
  • 3PHASE 4WIRE 5(60) AMPS ELECTRONIC CREDIT METER
  • SINGLE PHASE (2Wire) 5(60) AMPS CREDIT STATIC METER
  • KEYPAD SINGLE &THREE PHASE ELECTRICITY DISPENSER
  • SPLIT TYPE PREPAYMENT SINGLE & THREE PHASE DISPENSER
  • AUTOMATIC METER READING SYSTEM (AMR)
  • SINGLE PHASE (DUAL PREPAYMENT AND CREDIT TYPE)