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Connecting
The Sun To Your Utility Meter
Trace Engineering’s new Sun Tie (ST) solar electric
inverters are designed, built and priced to make the benefits
of site-generated PV power easy for anyone to attain. The
Sun Tie operates interactively with the utility, without the
use of batteries. Made specifically for new, small-scale,
independent power producers, the ST is a perfect choice for
anyone interested in participating in the emerging Green Power
market. The ST is available in four models with output capacity
of 1.0, 1.5, 2.0 and 2.5 kVA.
Distributed generation, using the power of the sun, is a win
- win choice for the environment, utility companies and consumers
alike. With this form of electrical distribution, solar PV
power is generated and inverted at the location where it’s
used. Solar electricity helps reduce the need for new large-scale—and
often environmentally harmful—generating stations and distribution
lines.
Consumers can have lower electricity bills because any PV
power they generate is either used in their home or business
or, when there is excess, sold to the utility company. “Net
Metering” is one way electricity is exchanged between the
power grid and solar generators. Net Metering programs are
available from many utility companies, contact your local
electricity provider for details.
All-in-One
Design
All NEC (U.S. National Electrical
Code) required DC input and AC output connections, disconnects
and circuit breakers are housed within the Sun Tie’s compact
case. A built in LCD panel provides easy-to-read system status
and daily cumulative power production information.
Works
With Any Type of PV Technology
The ST is designed to optimize
the output from all types of solar electric technologies.
The open circuit voltage window of the Sun Tie ranges up to
125 VDC so both conventional Crystalline and newer Thin Film
PV modules can be used.
Maximum
Power Point Tracking
The Sun Tie uses sophisticated
software to track and adjust the output of the PV array. Our
Maximum Power Point Tracking (MPPT) software, which samples
once a minute, ensures complete harvest of the sun’s energy
all day long.
Expandable
Multiple ST inverters
can be connected to a utility grid so that additional generating
capacity may be added in a fully modular manner.
High Efficiency,
Long Life Design
The high frequency,
solid state design of the ST inverter is extremely efficient.
The inverter efficiency is over 90%, with peak efficiencies
of 94%. Built and designed in the U.S.A. by Trace Engineering,
makers of the worlds most reliable inverters, the Sun Tie
is sure to provide many years of trouble free service and
carries a two year warranty.
Standard Features
Sun Tie—Utility
interactive inverter, 240 VAC 60 Hz output. Includes factory
installed DC and AC input/output breakers, combination DC
and AC lightning arrestor.
Options
STRS—Protective
rain shield, required for out door installation of ST Series
inverters
Certifications
UL Listed—The
Sun Tie is UL Listed to UL 1741 and cUL Listed to CSA 22.2.
The ST is designed to comply with IEEE 929.
Note: ST1000
and ST2000 models do not include PV ground fault interrupters
and PV combiner boards. Trace offers a PV ground fault interrupter
(PVGFP) which requires an enclosure (not included) and a UL
Listed 10 circuit combiner box (TCB10). Both of these items
can be ordered separately.
Specifications
| Model |
ST1000 |
ST1500 |
ST2000 |
ST2500 |
| AC Voltage - Nominal |
240 VAC |
| Maximum Power point
tracking voltage range |
42
- 85 VDC |
| Minimum Input DC voltage (for full
rated AC output) |
52 VDC (typically,
four nominal 12 VDC PV modules, in series) |
| Minimum Wake-up DC Input Voltage |
50 VDC |
| Absolute Maximum PV Open Circuit Voltage |
125 VDC |
| AC Voltage - Min/Max |
211 - 254 VAC
|
| AC output characteristics |
Current source |
| Nominal Frequency - |
60 Hz |
| Frequency Window - Min/Max |
59.5 - 60.5 Hz.
Default |
| Continuous AC Output @ 25° |
1.0 kVA |
1.5 kVA |
2.0 kVa |
2.5 kVa |
| Efficiency Peak |
92% |
94% |
| AC Output Waveform |
Sine wave, high
frequency PWM controlled |
| Total Harmonic Distortion |
Less than 5% at
rated power per IEEE 929 and UL 1741 |
| AC Disconnect |
Double pole 15
Amp 240 VAC branch circuited rated breaker. |
| DC Disconnect |
Single Pole 100
amp DC rated circuit breaker. |
| Islanding Protection |
Over/under AC
Voltage and frequency detection plus active islanding
detection - Meets IEEE 929 and UL 1741 requirements. |
| User Display |
Backlit alphanumeric
LCD displays - AC amps, AC voltsrms, DC volts,
AC frequency, output power (W) and (Wh) produced. |
| Specified Temperature Range |
32F° - 113 F°
(0 C° - 45 C°) |
| Enclosure Type |
Outdoor,
rainproof, powder coated aluminum enclosure, fully screened. |
| Dimensions - Inverter only |
13.25" W x 33.25"
H x 5.3" D (33.8cm W x 83.1cm H x 13.2 cm D) |
| Dimensions - Shipping |
15.75"
W x 37.75" H x 9.5" D (39.4cm W x 94.4cm H x 23.8cm D) |
| Weight - Inverter only |
35 lbs. (16kg) |
| Weight - Shipping |
40 lbs. (18kg) |
| Mounting |
Vertical wall
mount only. |
| Listings |
UL listed to UL
1741, 1st edition and cUL listed to CSA 22.2 #107.1-95 |
Specifications subject to change
without notice.
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| Standard
Features and Options |
| Model |
ST1000 |
ST1500 |
ST2000 |
ST2500 |
| PV Ground Fault Protection System
|
-- |
Standard |
-- |
Standard |
| PV combiner board with 6 fused inputs
20 Amp maximum per input. |
-- |
Standard |
-- |
Standard |
| Surge arrestor - Combined AC/DC protection |
Standard |
Standard |
Standard |
Standard |
| Rain Shield (STRS) - Protective rain
shield. Required for outdoor installation. |
Optional |
Optional |
Optional |
Optional |
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