Specifications

e Electro Industries/GaugeTech Doc # E145701 D-9
Q
Phase Angle ( Points 20 - 25 )
These points are formatted as 2's complement integers. They represent angles from -180.0
0
(0x0F8F8) to +180.0
0
(0x00708).
Q
CT & PT Ratios ( Points 26 - 31 )
These points are formatted as 2's complement integers. They can be used to convert from units in
terms of the Secondary of a CT or PT into units in terms of the Primary of a CT or PT. The ratio of
Numerator divided by Denominator is the ratio of Primary to Secondary.
Shark meters typically use Full Scales relating Primary Current to 5 Amps and Primary Voltage to
120 V. However, these Full scales can range from mAs to thousands of kAs, or mVs, to thousands
of kVs. Following are example settings:
CT Example Settings:
200 Amps: Set the Ct-n value for 200 and the Ct-S value for 1.
800 Amps: Set the Ct-n value for 800 and the Ct-S value for 1.
2,000 Amps: Set the Ct-n value for 2000 and the Ct-S value for 1.
10,000 Amps: Set the Ct-n value for 1000 and the Ct-S value for 10.
NOTE: CT Denominator is fixed at 5 for 5 ampere unit.
CT Denominator is fixed at 1 for 1 ampere unit.
PT Example Settings:
277 Volts (Reads 277 Volts): Pt-n value is 277, Pt-d value is 277, Pt-S value is 1.
120 Volts (Reads 14,400 Volts): Pt-n value is 1440, Pt-d value is 120, Pt-S value is 10.
69 Volts (Reads 138,000 Volts): Pt-n value is 1380, Pt-d value is 69, Pt-S value is 100.
115 Volts (Reads 347,000 Volts): Pt-n value is 3470, Pt-d value is 115, Pt-S value is 100.
69 Volts (Reads 347,000 Volts): Pt-n value is 347, Pt-d value is 69, Pt-S value is 1000.
Point Reading
20 Phase A Current Angle
21 Phase B Current Angle
22 Phase C Current Angle
23 Volts A-B Angle
24 Volts B-C Angle
25 Volts C-A Angle
Point Value
26 CT Ratio Numerator
27 CT Ratio Multiplier
28 CT Ratio Denominator
29 PT Ratio Numerator
30 PT Ratio Multiplier
31 PT Ratio Denominator