Artificialliftforum Ul1741presentation Final 120215145546 Phpapp02

7/28/2019 Artificialliftforum Ul1741presentation Final 120215145546 Phpapp02

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Presentation to Artificial Lift ForumNovember 2011

UL 1741 Distributed Generation Standard

Ronald A. Dombrowski,

Vice President, CCW


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What is UL1741 and why should I care?


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UL 1741 is the standard that inverter-basedgenerators must meet to put electricity on the

grid

and get paid for it.


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You should care about UL1741 because up to40% of the energy you are putting into yourbeam pumps may be recovered with aregenerative drive system.

With a UL 1741 certified system, that can comright off your electric bill.


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You should care about UL1741 because up to40% of the energy you are putting into yourbeam pumps may be recovered with aregenerative drive system.

With a UL 1741 certified system, that can comright off your electric bill.


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Distributed Generation in TEXAS

Distributed Generation:An electrical generating facility located at acustomer's point of delivery (point of commoncoupling) of ten megawatts (MW) or less and

connected at a voltage less than 60 kilovolts (kVwhich may be connected in parallel operation tothe utility system.


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Distributed Generation in TEXAS (cont)

The Public Utility Commission of Texas (PUCTencourages the use of distributed resources.

Texas Public Utility Regulatory Act (PURA) of1999 includes customer rights and safeguards

Section 39.101(b)(3) of PURA states A

customer is entitled to have access . . . to on-sdistributed generation . . .


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The PUCT established Substantive Rules forinterconnecting distributed generation.

Substantive Rules Sections 25.211 and 25.212 addres Technical Aspects

Procedural Aspects

for interconnection of distributed generation.


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The PUCT established Safety Requirements forinterconnecting distributed generation.

Safety Requirements ensure DG is designed and

installed in a way that: is not a safety hazard to utility personnel, equipment or other

customers

Does not disturb other customers or degrade quality ofdistribution system

Provides reliable service to DG owner and utility


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UL 1741 forms a part of the Safety Requirements

Virtually all Texas utilities require compliance with UL

1741 standards


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Distributed Generation in NEW MEXICO

17.9.568.8 APPLICABLE CODES AND STANDARDS:B. In order to qualify for any interconnection procedur

each generating facility generator shall be inconformance with the following codes and standard

as applicable:(3) UL 1741 Inverters, converters and controllers for u

in independent power systems or equivalent.

TITLE 17 PUBLIC UTILITIES AND UTILITY SERVICES

CHAPTER 9 ELECTRIC SERVICESPART 568 INTERCONNECTION OF GENERATING FACILITIES WITH A RATED CAPACITY UP TO AND INCLUDING 10 M

CONNECTING TO A UTILITY SYSTEM


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UL 1741

UL 1741 (Second Edition, January 28, 2010)incorporates:

IEEE 1547 Standard for Interconnecting Distributed Resour

with Electric Power Systems

IEEE 1547.1 Standard for Conformance Testing ProceduresEquipment Interconnecting Distributed Resources.


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UL 1741

UL 1741 (2nd Edition) also includes requirements f

Construction, materials, wiring, component spacing, etc.

Protection against risks of injury against persons

Output characteristics and utility compatibility (includes IEEE1547)

Rating, Marking

Specific Tests for various technologies (PV, Wind, MicroturbinFuel Cell Engine, etc.)


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UL 1741

The CCW regenerative Enersaver Power II habeen tested and certified compliant with therequirements of the stringent UL 1741 standar(2nd Edition).

This testing has certified the Enersaver Powermeets the standards for alternative energy,

distributed and grid parallel generation system


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UL 1741

The Enersaver Power II is the first, and currenthe only drive system which complies with thisimportant standard.


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UL 1741 Key Requirements

Harmonic Distortion of less than 5% I-THD

The measured total harmonic distortion of the currentoutput from inverters must be below 5%.

The power coming on to the grid is expected to be cleaand not interfere with the operation of the electricsystem.


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THD taken with Enersaver -VFD running at 60HZ, snap shot

represents a 20 minute capture.

This is 4.5% THD for Current .. 0.8% THD for Voltage

Oilfield Power2


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Anti-Islanding Verification Test

This standard ensures that the inverter will properly shdown during a power interruption and isolate itself from

the electric grid.

This standard is of utmost importance to electricdistribution companies as it relates to safety for theirworkers.


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Frequency variation test

The inverter must pass a series of simulated tests toadjust to the frequency of the grid AC power within

specified time standards.


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Line/Grid Synchronization Tests

The inverter system must be able to automaticallysynchronize to the grid under many different condition


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Dielectric Voltage Withstand Test

The inverter must be able to withstand 1,000 volts plustwice the rated voltage of the inverter between the inp

stage and ground, the output stage and ground, andbetween the input and output stages.


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Other Tests Performed for UL 1741Compliance: Voltage Variation Output Test

Component Short Circuit Test

Loss of Control Circuit Test

Temperature Withstand Test

Line/Grid Interactive Test


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Other Tests Performed for UL 1741Compliance: Voltage Variation Output Test

Component Short Circuit Test

Loss of Control Circuit Test

Temperature Withstand Test

Line/Grid Interactive Test


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UL 1741

The Enersaver Power II is the first, and currenthe only drive system which complies with thisimportant standard.


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Benefits of UL 1741Compliant Oilfield Drive Systems

Regenerate Electricity

for Sale back onto Electric Grid

Reduce own consumption

Reduction of energy consumed

Reduction of demand charges

Oilfi ld E


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Oilfield Enersaver


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Reactive Power (KVARs) go from consuming tgenerating

Generating KVARs:

Decreases current/amperage required for motor wo

Reduces or eliminates voltage sags

Significantly decreases KVA demand charges


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Clean Utility Grade power generated

Returned to grid for $$ credit

Benefits other electric devices in area

active Power (KVARs) go from consuming togenerating

GREEN Carbon Offsetting Power


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Increased safety of workers and public

Opportunities to participate in demandreduction/demand response programs

Provides greater energy efficiency


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QUESTIONS?

Documents

Artificialliftforum Ul1741presentation Final 120215145546 Phpapp02