Xantrex PV-30208 Operation And Maintenance Manual
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Xantrex PV-30208 Operation And Maintenance Manual

Xantrex PV-30208 Operation And Maintenance Manual

30 kw grid-tied photovoltaic inverter
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OPERATION and MAINTENANCE

MANUAL
for
MODEL PV-30208
30 kW Grid-Tied Photovoltaic Inverter
Document #151315
Revision E November 17, 2003
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS - THIS MANUAL CONTAINS IMPORTANT INSTRUCTIONS
FOR XANTREX TECHNOLOGY MODEL PV-30208 GRID TIED PHOTOVOLTAIC INVERTER
THAT SHALL BE FOLLOWED DURING INSTALLATION AND MAINTENANCE OF THE PV-
30208.
Xantrex Technology Inc.
161-G SOUTH VASCO ROAD
Livermore, CA 94551
(925) 245-5400
Copyright 2003, Xantrex Technology Inc.

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Summary of Contents for Xantrex PV-30208

  • Page 1: Operation And Maintenance

    Revision E November 17, 2003 IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS - THIS MANUAL CONTAINS IMPORTANT INSTRUCTIONS FOR XANTREX TECHNOLOGY MODEL PV-30208 GRID TIED PHOTOVOLTAIC INVERTER THAT SHALL BE FOLLOWED DURING INSTALLATION AND MAINTENANCE OF THE PV- 30208. Xantrex Technology Inc.

  • Page 2: Table Of Contents

    Table of Contents Product Description Introduction ... 1-1 Major Components ... 1-1 Interconnection Standards Compliance ... 1-2 Specifications ... 1-3 Equipment Symbol ... 1-3 Safety Safety Features ... 2-1 Isolation Procedure ... 2-2 Installation And Initial Turn-On Isolation Transformer Requirements ... 3-1 Torque and Wire Gauge Specifications ...

  • Page 3: Product Description

    PRODUCT DESCRIPTION INTRODUCTION The Xantrex Technology Model PV-30208 is a 30 kW Grid Tied Photovoltaic Inverter. It utilizes advanced power electronics to allow the interface of a photovoltaic array with an utility grid. The PV- 30208 is a highly integrated assembly, consisting of an inverter bridge and associated control electron- ics.

  • Page 4: Interconnection Standards Compliance

    Matrix Bus Board The PV-30208 design makes use of a fully integrated matrix bus board as shown in Figure 1-2. The bus board assembly is mounted to an aluminum extrusion heatsink, which is mounted between the upper and lower enclosures. The power electronics is comprised of a three, dual pack IGBT devices, mounted to the heatsink.

  • Page 5: Specifications

    The PV-30208 has been designed for photovoltaic power systems, which operate within the following specifications. Application of the PV-30208 in a manner inconsistent with these specifications may cause damage to the PV-30208 and other system components, and is a violation of the terms of the warranty.

  • Page 6: Safety

    Turning the switch to the off position will initiate a controlled shutdown of the PV-30208 and open the A/C contactor within the unit. The A/C contactor cannot be closed unless the switch is in the on position. The PV-30208 is prevented from being restarted until the on/off switch is turned back to the on position.

  • Page 7: Isolation Procedure

    In the event of a utility outage, these adjustments destabilize the feedback between the inverter and the remaining load, resulting in an over/under frequency or voltage condition. The PV-30208 then performs an orderly shutdown. The fault condition will remain until the utility voltage and frequency have returned to normal for 5 minutes.

  • Page 8: Installation And Initial Turn-On

    30 kVA inverter, but can be ordered as a separate item. If maintaining the listing to UL1741 is not a requirement for your application, contact Xantrex Technology for a fact sheet de- scribing the installation options and precautions for installing this inverter in a photovoltaic system that does not require UL1741 compliance.

  • Page 9: Installation Instructions

    Floor Mounted 1. Move the PV-30208 into place. Lift the PV-30208 from beneath the lower enclosure with a forklift as shown in Figure 3-2. (See following page.) 2. Anchor the lower enclosure feet to the floor with 1/2” anchor bolts.
  • Page 10 SECTION 3 INSTALLATION AND INITIAL TURN-ON Figure 3-2 PV-30208 Photovoltaic Inverter DOCUMENT: 151315 Operation and Maintenance Manual Copyright 2003, Xantrex Technology Inc. Figure 3-1 Lift Here Cable Entry Access Panel (Both Sides) Figure 3-3...

  • Page 11: Interconnection Wiring

    INSTALLATION AND INITIAL TURN-ON Array Grounding NEC 690-41/42 requires the PV array to be earth grounded. The PV-30208 is shipped with a ground bond for installation between the pv negative terminal block to the pv safety ground terminal block. The PV-30208 chassis is also bonded to the PV safety ground terminal block. This ground bond is clearly marked with a warning label which must be read before installation.
  • Page 12 The neutral must be left floating. Ground loops will exist when the inverter starts switching, which will cause the inverter to shut down due to phase over-currents and will result in damage to the PV-30208. Also, insure that this neutral is not bonded to the isola- tion transformer frame.
  • Page 13 SECTION 3 INSTALLATION AND INITIAL TURN-ON PV-30208 Photovoltaic Inverter DOCUMENT: 151315 Operation and Maintenance Manual Copyright 2003, Xantrex Technology Inc.

  • Page 14: Initial Turn On Procedure

    • Close the AC disconnect (if present). • With the DC disconnect switch open (if present), close one of the PV array string disconnect devices. PV-30208 Photovoltaic Inverter DOCUMENT: 151315 Operation and Maintenance Manual Copyright 2003, Xantrex Technology Inc. DC TERMINAL...
  • Page 15 30208 should transition to “Power Tracking” (see Section 4, Operation). • Depending upon solar conditions, the PV-30208 may not operate at full power. If the PV array is not experiencing full sun, the PV maximum power tracker will regulate the PV voltage to maintain maximum PV power output.

  • Page 16: Operation

    • Stable utility voltage and frequency must be present for all states of operation. • Fault states are automatic from any state of operation. A fault will cause the PV-30208 to immedi- ately stop processing all power. The fault condition will be reported to the operator interface.

  • Page 17: Operation Features

    Variable Minimum DC Input Voltage Level The minimum DC input voltage limit for the PV-30208 is a function of the utility AC line voltage. The PV-30208 control software periodically changes the minimum allowable DC input voltage based upon the actual line voltage during operation.

  • Page 18: Section 4 Operation

    OPERATION Ground Fault Detection The PV-30208 is capable of detecting PV array ground fault current. To enable this feature, a wire must be installed between ground and the desired ground reference point on the PV array. For bipolar PV array configurations, the ground wire must be connected between the PV array neutral point and TB- NEUT terminal block.
  • Page 19 This assumes that once the voltage on the array has risen, there will be greater PV power as the PV array is exposed to higher irradiance. Conversely, if the PV-30208 wakes up and determines that there is more power than is necessary to support inverter operation, the PV start voltage setpoint is lowered.

  • Page 20: Operator Interface Panel (Lcd)

    30208 is faulted, this line will report a description of the fault condition. • Line 3: Bus Voltage or Fault Code - This line reports the Bus Voltage, in volts. If the PV-30208 is faulted, this line will report a code for the fault condition.

  • Page 21: Example Of Normal System Operation

    PV voltage is available. 5 minutes after the PV start voltage has been reached, the PV-30208 will synchronize to the utility grid and begin peak power tracking the PV array. The time delay protects the inverter from excessive on/off cycling.

  • Page 22: System Operating Parameters

    PV arrays, or to be in compliance with UL1741. In general, the factory default settings allow for stable, efficient operation of the PV-30208 connected with any PV array configured for a 300-600 VDC peak power voltage point.
  • Page 23 PV-30208 Photovoltaic Inverter DOCUMENT: 151315 Operation and Maintenance Manual Copyright 2003, Xantrex Technology o l l a t l a t l...
  • Page 24 I - i a l s e t r i t c a i r r e t PV-30208 Photovoltaic Inverter DOCUMENT: 151315 Operation and Maintenance Manual Copyright 2003, Xantrex Technology , f f a t l , f f...

  • Page 25: Troubleshooting

    SECTION 5 TROUBLESHOOTING GENERAL In the event of a fault, the PV-30208 will annunciate the condition at the operator interface. The PV- 30208 will execute an orderly shutdown and remain faulted until the fault is cleared (manually or auto- matically).

  • Page 26: Fault Descriptions And Troubleshooting

    • Auxiliary contact block on contactor K1 inoperable. This is only possible if the fan does not operate PV-30208 Photovoltaic Inverter DOCUMENT: 151315 Operation and Maintenance Manual Copyright 2003, Xantrex Technology Inc. FAULT DESCRIPTIONS t l u t l u...

  • Page 27: Section 5 Troubleshooting

    The AC utility frequency fell below the minimum programmed limit. This limit is set to 59.5 Hz and the system response time limit is set to less than 0.1 seconds to insure the PV-30208 disconnects from the utility within the time allowed by UL1741. Frequency setpoints may be modified via the operator inter- face program.
  • Page 28 The AC frequency exceeded the maximum-programmed limit. This limit is set to 60.5 Hz and the system response time limit is set to less than 0.1 seconds to insure the PV-30208 disconnects from the utility within the time allowed by UL1741.
  • Page 29 • Replace CT showing high output voltage offset. (9) Current Imbalance Fault (0x10000) The PV-30208 has determined that there is an excessive phase-to-phase current imbalance, while the system is operating. • Observe individual phase currents during operation with the operator interface program and with a true RMS oscilloscope.

  • Page 30: Preventative Maintenance

    Accumulation of dirt and debris on the aluminum extrusion heatsink and fan shroud will de- crease the ability to transfer heat, which can cause the PV-30208 to shutdown on over-tempera- ture alarms. Inspect the aluminum extrusion heatsink and fan shroud for accumulation of dirt and debris.

  • Page 31: Turn-On Procedure

    5. Turn the on/off switch to the on position. After a 15 second initialization period and a 5 minute wake up period, the PV-30208 will automatically begin power tracking, given the PV voltage is greater than the PV start voltage setpoint.

  • Page 32: Drawings List

    Underwriters Laboratories Compliance Of Standard UL1741 OPTIONAL ACCESSORIES For details and specifications on Xantrex Technology 10 and 12 Pole, 600 VDC Combiner Boxes, contact your Xantrex Technology distributor. For details and specifications on 30 kVA 3-Pole, 208 Delta/208-120 WYE and 480-277 WYE Trans- formers, contact your Xantrex Technology distributor.
  • Page 38 Assembly Description: Main Enclosure, Control Components, PV-30208 Xantrex Technology Inc. Assembly # 151317 Item # Reference Designator TB1-2 B1,B2 C1-3 L2-4 F1-F3 CT1,CT5 F4-F7 151317 Xantrex Technology Inc. PV-30208 Photovoltaic Inverter Major Parts List Xantrex Technology Part # 1-160070-01 Enclosure, Upper...
  • Page 40 XANTREX PV SERIES LIMITED WARRANTY AND REGISTRATION Xantrex Technology warrants all equipment supplied to Customer under this purchase order against defects in workmanship and material for a period of (12) twelve months from delivery, provided that the equipment has been operated and maintained in accordance with the service manual provided with the equipment.

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