Free DBB-019a, Power Consumption Coefficient Rating for Electric Pumps - Colorado

DBB-019 (A) (03/03)

POWER CONSUMPTION COEFFICIENT RATING FOR ELECTRIC PUMPS
(FOR ALL OTHER PUMPS USE FORM DBB-019(B))

COLORADO GROUND WATER COMMISSION Room 818 Centennial Building, 1313 Sherman Street Denver, CO 80203 NOTE: This form can only be used for wells located within a Designated Ground Water Basin. This test is to determine the overall efficiency of the well (power consumption coefficient). All values, including pressure and input horsepower, must be measured on site. Note that well tests are performed several ways to obtain a variety of information. Providing a copy of this form to whomever does the test may help insure that the correct procedure is followed. The test should be conducted late in the irrigation season, during August thru October, when the ground water table is typically lower. Additional tests may be submitted at the applicant's option. This test must be conducted with the system under full operating conditions. If the well drives a sprinkler, the sprinkler must be connected and operating. Such a test must be conducted by a certified well tester as determined by the State of Colorado. WELL LOCATION AND INFORMATION: Well Permit No.:

¼,

¼,

Section

, Township

,

, Range

, West,

PM

ELECTRICAL SUPPLIER: Power Company Name: Power Company Meter No.: Account No.: Manufacturer's Serial No.: Yes Yes No No

Is the electric meter owned and read by the electric company? Are other devices served by the electric meter (compound system)? If yes, describe If yes, were all devices operating during test?

Yes

No (kWh)

Electric meter reading at time of test (include all rotating digits including leading zeros): Multiplier: Potential Transformer Factor (PT): Current Transformer Factor (CT): Kh factor: None None 2.5:1(2.5) 200:5(40) Number of Rotating Digits: 2.4:1(2.4) 400:5(80) Other (specify) 800:5(160) Other (specify)

Pkh = Kh x PT x CT =

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POWER CONSUMPTION COEFFICIENT RATING (CONTINUED) PUMP INFORMATION: Pump type (turbine, centrifugal, submersible, etc.): Discharge pipe diameter (outside diameter): Describe all possible discharges from the well: inches Motor Horsepower:

TEST DATA: Date of Test: Time of Test: hours feet

How long has the pump been running prior to test? tic water level below centerline of discharge (required only if pump is not running upon arrival):

Pumping level below centerline of discharge (must show that drawdown has not changed more than 10% in last hour*) Time Pumping level in ft. Time Pumping level in ft.

Discharge pressure at well head (must show pressure has not changed more than 10% in last hour*, not required on low pressure system, i.e., open discharge, gated pipe, etc.) Time Pressure in P.S.I. Time Pressure in P.S.I.

Time

Total Dynamic Head in ft.

Time

Total Dynamic Head in ft.

COMMENTS on above pumping/pressure tests:

·

The PCC test must be conducted only after the system has stabilized; both drawdown (pumping level minus static water level) and operating pressure have not changed more than 10% in the last hour. For alluvial and other shallow wells which are running for at least 2 hours prior to arrival, stabilization may be demonstrated by a determination that the change in pumping level does not exceed 1 foot per hour. This must be measured over at least one 15 minute interval.

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POWER CONSUMPTION COEFFICIENT RATING (CONTINUED) DETERMINATION OF STABILIZED PUMPING RATE: Test Meter Manufacturer: Serial No.: Date of Last Calibration:

Calculations, notes, times, etc., used to determine Q (in G.P.M.):

Q= DETERMINATION OF POWER DEMAND: (MINIMUM OF THREE TESTS) Disk Revolutions: Seconds Rate (Rev/Sec)

G.P.M.

Average Rate: Power demand, P = Average Rate x 3.6 x Pkh = CALCULATION OF POWER CONSUMPTION COEFFICIENT: PCC =

K.W.

5433xP = Q

K.W.H./A.F.

Methods of calculating power consumption coefficient are specified in U.S.G.S. Water Resources Investigation Report (89-4107) TESTER VERIFICATION: I, , state that I am currently a person approved by the State Engineer to conduct well tests. I have conducted a power consumption coefficient rating of the above described well. Based on the information contained on this form, I represent this test as being an accurate method of determining water use from the well. I understand that falsifying a power consumption coefficient rating can subject me to a fine of up to $500.00. SIGNATURE OF TESTER: COMPANY: ADDRESS: PHONE: DATE:

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POWER CONSUMPTION COEFFICIENT RATING (CONTINUED)

Provide a simple diagram of the irrigation system. Show total system from pump to discharge, other pumps in the same well, and electrical system including other devices on the same meter. Show where test meter and pressure gauge were placed and how system was modified to perform test. Show measurements. In addition to sketch, an attached Polaroid picture is recommended. Include a brief explanation of your operating procedure. Example of an irrigation system diagram:

Valve Well

To ditch

To sprinkler Meter Pressure Gage

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