L&T ER300P Energy meter

METERING

TRIVECTOR METER – ER300P

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Class of Accuracy: 1.0 / 0.5S / 0.2S High Surge Voltage withstand capability up to 8 kV. Four Quadrant Energy Measurement.

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Up to three Maximum Demand registers. Tamper/ Fraud Detection Multiple Tariff Capability Self-Diagnostics

U K AS

LARSEN & TOUBRO LIMITED

TRIVECTOR METER – ER300P TECHNICAL SPECIFICATIONS Accuracy

Tamper Recording

Class 1.0......... IS 13779 / IEC 61036 Class 0.5S / 0.2S... IEC 60687 0.2S...IEC IS 14697/CBIP-88

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with Date & Time of Occurrence & Restoration

Electrical Voltage (-30 % to + 20 %)

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3 Phase 4 Wire…….…63.5 V (L-N) 3 Phase 4 Wire……….240 V (L-N) 3 Phase 3 Wire……….110 V (L-L)

Current CT operated I b ……… 1A, 5A I max…..200% of I b ■ Whole Current I b....5A, 10A, 20A, 50A I max…Up to 600% of Ib % Frequency Range 50Hz + 55%

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Measured Energy Values ◆

4 Quadrant Measurement of kWh, kV ARh,kV Ah kVARh,kV ARh,kVAh

Other Measured & Displayed Values ◆ ◆ ◆ ◆

Power……kW AR,kV A Power……kW,, kV kVAR,kV AR,kVA Voltages & Cur Currr ents Power Factor Frequency

Time of Use (TOD) ◆ ◆

Up to 8 T arif Tarif arifff Registers Up to 10 defined slots can be programmed

ampers Logs the following TTampers

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Missing Potential Missing Current Cur oltage Unbalance Currr ent & V Voltage Current Reversal

Display ◆ ◆ ◆ ◆ ◆ ◆

Communication

Snapshots of VV,, I, Power Factor Factor,, Ener gy at the time of tamper Energy tamper.. (Optional)

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Flags for Phase Sequence,

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Cur oltage Currr ent Reversal, V Voltage Missing, Current Missing and other T ampers. Tampers.

Load Survey ◆ 183

parameter days at 30 min integration period ◆ Programmable Features :■ Up to 4 energies can be selected ■ Integration period programmable from1-60 mins (optional)

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Up to 3 MD registers can be programmed Integration periods programmable from 1 to 60 minutes. Reset: auto/manual/through MRI Rising Demand on display

Optical port as per IEC 1107 RS 232 port (optional) RS 485 using MODBUS protocol (optional)

Data Security ◆ ◆

Data storage in Non V olatile Memor y Volatile Memory 2 levels of Password :■ For Data Reading ■ For Programming

Self Diagnostics ◆

Maximum Demand (MD) Register ◆

Custom built LCD with Backlight. 8 digit 7 segment display for parameters Identifier for parameters 3 Display modes Auto Scroll Display UP-DN Keys for scrolling

Anomaly string indicating :■ Program Memory error ■ EEPROM error ■ RTC error

Output Device ◆

LEDs with output proportional to kWh,kV ARh kWh,kVARh

LARSEN & TOUBRO LIMITED METERING AND PROTECTION SYSTEMS Works…..KIADB Indl. Estate, Hebbal, Hootagalli, Mysore-570018. Ph: (0821) 402561. Fax: (0821) 402172. ◆ New Delhi: Ph: (011) 25177883. Fax: (011) 25438624 ◆ Bangalore: Ph: (080) 5587825. Fax: (080) 5596397 ◆ Kolkata: Ph:(033) 22823302. Fax: (033) 22821025 ◆Chandigarh: Ph:(0172) 370131. Fax:(0172) 792764 ◆Mumbai: Ph:(022) 28581634. Fax:(022) 28582020 ◆ Chennai: Ph:(044) 28462055 Fax: (044) 28462102.

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