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Sap
1
Phase, 2 wire & 3 phase, 4 wire kWh Energy Meters respectively
type RC-122, RC-124, RC-34 and RC-342 are induction type integrated
energy meters. These have been successfully developed to meet
Electricity Supply Undertaking’s requirements in terms of accuracy
& reliability based on fundamental requirements. Also these kWh
energy meters conform to Indian Standard Specifications “IS:
13010/1990” as amended upto date.
Sap
kWh energy meters combine experience gained through development and
rigorous field testing.
Sap
kWh energy meters are the choice of discriminating Electrical
Engineers throughout the country due to its robust construction,
accuracy and reliability, low maintenance cost and long working
life.
FEATURES
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Manufactured in most modern plant, using best available
raw-material and equipments.
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The final testing is carried out in air-conditioned and
dust proof lab.
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Strict
quality control at every stage, right form the purchase of raw
material to the packing of the meters.
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In-house
manufacturing of components including deep drawn and steel
sheet, Bakelite and plastic components have strict quality
control.
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Fully
equipped Research & Development department with highly
qualified and experienced personnel for up-grading the meter as
per the requirements of different customers.
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High
torque/weight ratio for error free operation over a long period
life, also to have minimum effect on accuracy, should
there be any change in friction in bearings or counter.
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Specially
designed to have oil or negligible effect of
- (a)
Variation of Voltage
- (b)
Variation of Frequency
- (c)
External Magnetic Field
- (d)
Change in Temperature
- (e)
Short Circuit
- (f)
Wave Form
- (g)
Shock and vibration during Transportation etc.
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Dust
and moisture proof and pilfer proof design.
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All
the adjustments are micrometric from front-side, easily operable
with large range having locking or self locking arrangements, also
having almost linear response over the entire range of operation.
THE
COMPONENTS
Every
component is manufactured under strict quality control inspection at
various stages of manufacturing. The ASSEMBLY is carried out on Automatic/Semi-Automatic machines. The TESTING
and CALIBRATION of the Meter is done on latest equipments.
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MAIN
FRAME-
The main frame, which is the back-bone of the Meter, is
made from pressed steel sheet or aluminium alloy die casting with
sufficient thickness and special ribs to hold the component
strongly and firmly in position. The main frame is stress
-relieved to avoid any possibility of distortion in the future.
Special care has been taken in designing to have minimum
cantilever effect.
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ROTATING
PARTS - Rotating
parts consists of
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a)
ROTATOR DISC of high purity aluminum sheet flattened and
stress-relieved. Fixed on a Brass/Steel shaft.
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b)
UPPER BEARING with highly polished stainless steel pin
with enough spring action to absorb shocks and vibrations.
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c)
LOWER BEARING with highly polished synthetic sapphire
jewel pushed up bya spring within the bearing housing
itself
to protect the double jewels and the tungsten carbide ball from
shocks & vibrations.
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ELECTRO
- MAGNET - Electro-magnets are
made of transformer grade silicon steel with very low watt losses.
The coils are wound on automatic machines with Inter-Layer
insulation and re-enforced end-connections to withstand heavy
surge currents. Impregnated in superior varnish having low current
density in the conductor to protect it from over-heating and
burning.
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BRAKE
MAGNET-ALNICO V or VI Magnets
having large coercive force, aged by high frequency alternating
Magnetic waves, heat and mechanical vibrations to have extremely
stable flux, least affected by temperature, magnetic fields and
time.
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TERMINAL
BLOCK-Terminal block is made of
electrical grade non-hygroscopic Bakelite material, having high
die electric strength. The terminals are made out of brass duly
nickel plated with two pinching screws for each connection.
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REGISTER
COUNTER -The drums are
made of die-casted aluminium or Delrin, which can withstand
boiling water test without softening,
with large figures for easy and accurate reading, Stainless steel
centreless ground shafts used with suitable lubricant for very low
Co-efficient of friction.
OPTIONAL FEATURES ON DEMAND
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Long range upto 600% Meter
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Low Watt losses Meter
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High Torque Meter
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Panel Meter
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C.T.
and P.T. Operated Meters
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Pilfer-Proof Meter
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Accuracy class upto 1.0 Meters
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Meter having unbreakable transparent
polycarbonate body
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Solid State Electronic Meters.
CHARACTERISTICS CURVES

TECHNICAL
SPECIFICATIONS
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SINGLE
PHASE
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3
PHASE
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200%
METERS
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400%
METERS
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120%
METERS
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200%
METERS
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Standard
to which the meter Conforms
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IS:13010/1990
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IS:13010/1990
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IS:13010/1990
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IS:13010/1990
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Type
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RC-122
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RC-124
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RC-34
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RC-342
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Voltage
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240
Volts
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240
Volts
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3x240
Volts
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3x240
Volts
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Frequency
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50
Hz
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50
Hz
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50
Hz
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50
Hz
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Current
Ratings
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2.5-5
Amp, 5-10 Amp,
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2.5-10
Amp, 5-20 Amp,
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5
Amp, 10 Amp,
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10-20
Amp, 20-40 Amp,
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10-20
Amp, 20-40 Amp
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10-40
Amp
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20
Amp, 30 Amp, 50 Amp
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30-60
Amp, 50-100 Amp
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Class
of Accuracy
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2.0
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2.0
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2.0
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2.0
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Meter
Constant
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2400,
1200, 600, 300
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1500,
750, 375
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600,
240, 120, 90, 60
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180,
90, 60,30
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Rotor
Speed in RPM
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Not
exceed 72
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Not
exceed 72
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Not
exceed 50
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Not
exceed 50
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Starting
Current
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Less
than 0.75% of lb
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Less
than 0.75% of lb
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Less
than 1.5% of lb
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Less
than 1.5% of lb
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Torque
at U.P.F. Max. Load
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4
gm cm
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Upto
6 gm cm
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8
gm cm
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Upto
12 gm cm
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Weight
of the Rotor
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20
gm (approx.)
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20
gm (approx.)
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42
gm (approx.)
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42
gm (approx.)
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Dia
of Terminal Hole
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More
than 5.5 mm.
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More
than 5.5 mm.
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5.5
mm & 8.5 mm.
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5.5mm,
8.5 & 9.5mm.
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Watt
losses in potential coil
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Less
than 1.0 Watt
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Less
than 1.2
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Less
than 1.0 Watt
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Less
than 1.0 Watt
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Efficiency
Factor
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Minimum
1.2
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Minimum
1.2
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Minimum
1.2
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Minimum
1.2
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Insulation
Resistance at 500V
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As
per IS: 13010
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As
per IS:13010
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As
per IS: 13010
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As
per IS: 13010
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Di-Electric
Strength
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2KV
RMS for one minute
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2KV
RMS for one minute
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2KV
RMS for one minute
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2KV
RMS for one minute
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DIMENSIONS
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Height
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200
mm +/- 5%
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200
mm +/- 5%
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300
mm +/- 5%
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300
mm +/- 5%
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Width
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140
mm +/- 5%
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140
mm +/- 5%
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170
mm +/- 5%
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170
mm +/- 5%
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Depth
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120
mm +/- 5%
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120
mm +/- 5%
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120
mm +/- 5%
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120
mm +/- 5%
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Weight
of Meter
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1.5
kg (approx.)
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3
kg (approx.)
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3
kg (approx.)
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3
kg (approx.)
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Note:
Due to continuous research by our R & D Section we reserve the
right to amend above specifications without notice.
Pre
dispatch inspection : We are regularly
inspected by SGS and offer the same at client’s expense.
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