Panel Meter,Transformer,Voltage Regulator/ stabilizer,Rectifier,Transducer,Break down tester,Test Bench,Relay test kit,Energy saver,Test measuring instruments Panel Meter,Transformer,Voltage Regulator/ stabilizer,Rectifier,Transducer,Break down tester,Test Bench,Relay test kit,Energy saver,Test measuring instruments

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PORTABLE INSTRUMENT
1PH / 3PH - POWER FACTOR METER (LARGE SIZE DYNAMOMETRIC IN WODDEN HOUSING)
Panel Meter,Transformer,Voltage Regulator/ stabilizer,Rectifier,Transducer,Break down tester,Test Bench,Relay test kit,Energy saver,Test measuring instruments
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DESCRIPTION

Protable dynamometric types instruments, incorporating single element / two elements or three elements power measurement methods and specially designed to be operated in horizontal position.


FEATURES / ADVANTAGES
Instruments with accuracy class 0.5 for 1 Ph Watt, 1.5 for 3Ph, 2 for PF.
Instruments with multiple scale available (refer table).
Robust housing suitable for schools, workshops and field operations for continuous use.

ELECTRICAL SPECIFICATIONS
TYPE MODEL POTENTIAL COIL (A) CURRENT COIL (A) ACCURACY
Watt Meter With
Low Power Factor
Panel Meter,Transformer,Voltage Regulator/ stabilizer,Rectifier,Transducer,Break down tester,Test Bench,Relay test kit,Energy saver,Test measuring instruments
PORT
LSDW-1
TPDC 75/150/300,150/300/600 0.5/1,1/2,2.5/5,5/10,10/20 1.5%
Panel Meter,Transformer,Voltage Regulator/ stabilizer,Rectifier,Transducer,Break down tester,Test Bench,Relay test kit,Energy saver,Test measuring instruments

WATT METER
Panel Meter,Transformer,Voltage Regulator/ stabilizer,Rectifier,Transducer,Break down tester,Test Bench,Relay test kit,Energy saver,Test measuring instruments
PORT
LSDW-2
SPSC 75,150,300,600 0.5,1,2,2.5,5,10,20 0.5%
DPSC 75/150,150/300,300/600
TPSC 75/150/300,150/300/600
SPDC 75,150,300,600 0.5/1,1/2,2.5/5,5/10,10/20
DPDC 75/150,150/300,300/600
TPDC 75/150/300,150/300/600
Panel Meter,Transformer,Voltage Regulator/ stabilizer,Rectifier,Transducer,Break down tester,Test Bench,Relay test kit,Energy saver,Test measuring instruments
PORT
LSDW-3
SPSC 75,150,300,600 0.5,1,2,2.5,5,10,20 1.5%
Panel Meter,Transformer,Voltage Regulator/ stabilizer,Rectifier,Transducer,Break down tester,Test Bench,Relay test kit,Energy saver,Test measuring instruments
PORT
LSDW-4
SPSC 75,150,300,600 0.5,1,2,2.5,5,10,20
DPDC 75/150,150/300,300/600 0.5/1,1/2,2.5/5,5/10,10/20
Panel Meter,Transformer,Voltage Regulator/ stabilizer,Rectifier,Transducer,Break down tester,Test Bench,Relay test kit,Energy saver,Test measuring instruments
PORT
LSDW-5
SPSC 75,150,300,600 0.5, 1, 2, 2.5, 5, 10, 20
SPDC 0.5/1,1/2,2.5/5,5/10,10/20
Panel Meter,Transformer,Voltage Regulator/ stabilizer,Rectifier,Transducer,Break down tester,Test Bench,Relay test kit,Energy saver,Test measuring instruments

VAR METER
Panel Meter,Transformer,Voltage Regulator/ stabilizer,Rectifier,Transducer,Break down tester,Test Bench,Relay test kit,Energy saver,Test measuring instruments
PORT
LSDW-6
SPSC 75,150,300,600 0.5,1,2,2.5,5,10,20 1.5%
DPDC 75/150,150/300,300/600 0.5/1,1/2,2.5/5,5/10,10/20
Panel Meter,Transformer,Voltage Regulator/ stabilizer,Rectifier,Transducer,Break down tester,Test Bench,Relay test kit,Energy saver,Test measuring instruments
PORT
LSDW-7
SPSC 75,150,300,600 0.5, 1, 2, 2.5, 5, 10, 20
SPDC 0.5/1,1/2,2.5/5,5/10,10/20
Panel Meter,Transformer,Voltage Regulator/ stabilizer,Rectifier,Transducer,Break down tester,Test Bench,Relay test kit,Energy saver,Test measuring instruments

POWER
FACTOR
METER
Panel Meter,Transformer,Voltage Regulator/ stabilizer,Rectifier,Transducer,Break down tester,Test Bench,Relay test kit,Energy saver,Test measuring instruments
PORT
LSDW-8
SPSC 75,150,300,600 0.5,1,2,2.5,5,10,20
DPSC 75/150,150/300,300/600
TPSC 75/150/300,150/300/600
SPDC 75,150,300,600 0.5/1,1/2,2.5/5,5/10,10/20
DPDC 75/150,150/300,300/600
TPDC 75/150/300,150/300/600
Panel Meter,Transformer,Voltage Regulator/ stabilizer,Rectifier,Transducer,Break down tester,Test Bench,Relay test kit,Energy saver,Test measuring instruments
PORT
LSDW-9
SPSC 75,150,300,600 0.5,1,2,2.5,5,10,20

SELECTION OF RANGES
Upper limit of measuring range for meters shall be one of the following values -
1, 1.2, 1.5, 2, 2.5, 3, 4, 5, 6, 7.5, 8 or their decimal multiples.
Example for selection of proper range
1 ) Formula for 1 Phase active power
     P(max) = VI COS¢ Where COS¢ = 1.
     If Voltage = 500V & Current = 2.5A calculated power = 500 x 2.5 x 1 = 1.25kW.
     If the calculated value is 1.25kW 0 - 1.2kW or 0 - 1.25kW shall be selected as a range for power.
2) Formula for 3 Phase active power with PT & CT.
    P(max) = √ 3VI COS¢ x PTR x CTR Where COS ¢ = 1.
    If Voltage = 110V & Current = 5A PTR = 400kV/110V CTR = 1000A/5A
    calculated power = √ 3 x 110x5 x (400x1000/110) x (1000/5)= 692MW.
    If the calculated value is 692MW  0 - 600MW or  0 - 750MW shall be selected as a range for power.

Note :
All Wattmeters are calibrated at cos¢ = 1 and Varmeter at sin¢ = 1
All Low Power Factor Wattmeters are calibrated at cos¢ = 0.2 lag.
Voltage & Current range other than specified can be supplied on request, if feasible.

Mechanical Specifications
Panel Meter,Transformer,Voltage Regulator/ stabilizer,Rectifier,Transducer,Break down tester,Test Bench,Relay test kit,Energy saver,Test measuring instruments Panel Meter,Transformer,Voltage Regulator/ stabilizer,Rectifier,Transducer,Break down tester,Test Bench,Relay test kit,Energy saver,Test measuring instruments
Fig. 1 Fig. 2

SIZE LENGTH
mm
WIDTH
mm
HEIGHT
mm
HOUSING
MATERIAL
MODEL
IDENTIFICATION
SCALE WEIGHT
kg.
(Approx.)
LENGHT
mm
(Approx.)
DIVISIONS
1 300 200 155/190 Wooden Box LSDW- 150 100 ~ 150 4 ~ 5
2 225 355 190/225 Wooden Box LSDW- 150 100 ~ 150 5.5 ~ 7.5

Ordering information
1) Type 2) Model 3) Parameter, Phase, Range 3) Operating Voltage & PTR
4) Operating Current & CTR.
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