Interface &
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Specifications |

Electric Submersible Pumping

	Gas Lift
	Plunger Lift

	Progressing Cavity Pumping
	Rod Pumping

Specifications of the ePAC™ II Variable Speed Drive for Progressing Cavity Pumping

Electrical Input Supply
Three-phase voltage	230, 380, 480 Vac (+10% to 15%)
Three-phase frequency	50 to 60 Hz (±5%)
Single-phase voltage	230, 480 Vac (±10% to 15%)
Single-phase frequency	50 to 60 Hz (±5%)

Electrical Power Factor
Overall	1.00 displacement power factor 0.94 overall power factor at all speeds

Electrical Output Rating
Voltage	Zero to input voltage, three-phase
Frequency	Zero to 120 Hz flux vector control Zero to 300 Hz variable frequency control
Switching frequency	Programmable, 2 to 15 kHz varies with Hp
Overload current	110 to 120% of rated for one minute (normal duty)

Electrical Conversion
Rectifier unit	Six-diode, three-phase (six-pulse) full wave bridge below 40 Hp Diode-SCR (12-pulse) full-wave bridge for 40 Hp and above
Inverter unit	Six-IGBT, four-quadrant, trap or sine wave output

Environmental
Operating temperature	-40° to 122°F (-40° to 40°C)
Storage temperature	-4° to 140°F (-20° to 60°C)
Relative humidity	5% to 95%, non condensing

Inputs and Outputs
Analog inputs	Three 12-bit analog inputs: one 4 to 20 mA, two 0 to 10 Vdc
Pulse input	0 to 32 kHz (flow volume configurable)
Analog outputs	Two 12-bit analog outputs (4 to 20 mA)
Pulse outputs	0 to 32 kHz
Digital inputs	Eight digital inputs (requires sink of 1 mA to common)
Outputs	Three programmable relay outputs (1 A @ 250 Vac) One fault contact

Serial Communications
Modbus port	EIA RS-232 and RS-422/485, 1200 to 19200 baud

Enclosure
UL listed package	Type 3R
	Engineered for all weather conditions
	Door interlocked breaker main disconnect
	Front mounted keypad and controls in secondary door
	Control transformer
	Panel mount enclosure (sizes one to three)
	Floor mount enclosure (sizes four and five)

Optional
	24 Vdc power supply for external analog signals
	Communication (Ethernet)
	Inlet line reactor
	IEEE-519 rated inlet harmonic package
	Long lead filter (DV/DT)

Dimensional Data

Encl. Size	HP 460V	HP 380V	Max Amps	Height in.	Width in.	Depth in.	Weight lbs.
1	5-30	5-25	40	36	24	20	100
2	40-50	40	67	48	24	21	180
3	60-100	50-75	125	48	30	23	210
4	125-150	100-125	180	72*	36	24	450
*Enclosure is 60 inches (175.26 cm.) high with 12 inch (30.48 cm.) floor mount stand





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	ePAC II Progressing Cavity Pumping ePAC II Progressing Cavity Pumping - A4 ePAC II Progressing Cavity Pumping - Spanish

© 2010 Weatherford International Ltd.

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