GENERAL :
"INDOTECHâ Watt, VA, VAR & Power Factor Meters are available in following type :
1. DYNAMO METER TYPE :
Current Coil & Volt Coil interact to give direct reading on dial.
TRANSDUCER TYPE :
Electronic Transducer gives signal in terms of DC microamps to moving coil DC meter which gives reading proportional to the signal.
"INDOTECH" WATT / KW / MW METERS :
Wattmeters are meant for measuring effective power and are designed for single phase as well as three phase balanced & unbalanced loads.
"INDOTECH" VA/KVA/MVA METERS :
VA meters are meant for measuring Apparent Power in 3 phase systems.
"INDOTECH" VAR/KVAR/MVAR METERS :
These are used for measuring wattless component of VA in 3 phase systems.
"INDOTECH" PF METERS :
P.F. of a circuit is the ratio between the effective power & the apparent power and is measured with the help of a power factor meter.
TECHNICAL SPECIFICATIONS
MODELS AVAILABLE :72x72, 96x96 & 144x144 mm Square.
ACCURACY
Class 1.0 as per ISS 1248/03.
SCALE :
Almost linear from 1/10 to full scale in case of WATT/KW/MW, VA/KVA/MVA & VAR/KVAR/MVAR Meters & 0.5 (Lag)-1-0.5(Lead) in case of power factor meters.
TYPE :
(a). Single element type for single phase A.C. measurements.
(b) Single element type for 3 phase balanced load.
(c) 2 elements type for 3 phase 3 wire balanced & unbalanced loads.
(d) 3 elements type for 3 phase, 4 wire balanced & unbalanced loads.
RANGE :
Current 1A or 5A & voltage upto 600V with internal resistance. Higher ranges with CT's & PT's
Note :
1. 72 x 72 kW meter is available with extra transducer box.
2. kVA & kVAR meter are not available in 72 x 72 size.3. Refer Pricelist for more details regarding models/ranges available