Bringing Quality to Power
The Vecto II is a third generation power quality recorder with permanent GPS and PTP time synchronisation:
• Power Quality Measurement - IEC 61000-4-30 Ed 3.0 (Class-A)
• Harmonic & Inter-harmonics - IEC 61000-4-7 (Class-I)
• Flicker Meter - IEC 61000-4-15 (Class-F1)
• SCADA Protocol - Modbus over IP (and IEC 61850 as extra)
• Synchrophasor Recorder
The Vecto II has 4 x voltage, 4 x current sensor and 4 x powered current transducer inputs. It features an on-board GPS,
2 x Gigabit Ethernet ports and a USB2.0 (HS) expansion port. Communication is secured with encryption.
Xross-Trigger® and Snapshot® Mechanisms
The Xross-Trigger® event synchronisation mechanism enables the recording of a Snapshot® of perfectly time
synchronised data from a group of remotely installed instruments. Each instrument maintains a large buffer of raw GPS
time synchronised voltage and current data. When triggered one instrument will dispatch a Xross-Trigger® command to
the others via the IP network. Upon receipt of a Xross-Trigger® command, each instrument will retrieve and store the
requested raw historic data on its on-board buffer. Once retrieved the user can analyse and display the Snapshot® of
data.
Features and Highlights
• Permanent GPS, PTP Time
synchronisation
• USB2.0 expansion port
• Dual Gigabit Ethernet ports
• Power over Ethernet
• Universal PFC AC/DC supply
• 5 Year maintenance free battery
• Rugged DIN rail mount enclosure
• 500kHz Sampling rate with oversampling
• Waveform capturing
• 1/6th-Sense® RMS & phasor capturing
• Xross Trigger® Event Synchronisation
• Snapshot® Recording
• 0.1% Accuracy
• Flash based data storage
Osprey Lite Support Software:
• Secure IP connectivity
• Remote configuration
• Automated data retrieval
• EN50160 & NRS-048 reports
• Trend visualisation
• Event analysis
• Data import/export
• PQDIF data export
10/12-Cycle Harmonics
10/12-Cycle Inter-Harmonics
Aggregated Harmonics
Aggregated Inter-Harm
x
x
x
x
x
x
x
X
x
x
x
x
x
x
X
x
x
x
x
Aggregated Trends
1/6th Cycle
x
x
MEASURED PARAMETERS
10/12-Cycle block
Waveforms
Measurement Interfaces
VOLTAGE
Frequency (Hz)
Voltage (Volt)
Voltage (% of Nominal)
Voltage (% of Fundamental)
x
x
x
Voltage Unbalance (%)
x
x
x
V-Positive Amplitude (Volt)
x
V-Positive Angle (Degrees)
x
V-Negative Amplitude (Volt)
x
V-Negative Angle (Degrees)
x
V-Zero Amplitude (Volt)
x
V-Zero Angle (Degrees)
x
x
x
x
The instrument is powered from either a Power Factor
Corrected AC supply input or via IEEE 802.3-2008
compliant Power over Ethernet (PoE) Plus (<25W) sources.
An internal LiFePO4 battery powers the instrument in the
absence of external power. This battery guarantees 2,000
charge/discharge cycles. It translates to a 5 year design life
if cycled once per day.
x
x
x
Voltage Over-Deviation
x
x
Voltage THD
x
x
Flicker (Pst)
x
x
Flicker (Plt)
x
Digital inputs and outputs
CURRENT
Current (Ampere)
x
x
x
x
x
x
x
Current (% of Fundamental)
x
Current Phase Angle (Degrees)
x
x
x
Current Unbalance (%)
x
x
x
I-Positive Amplitude (Ampere)
x
I-Positive Angle (Degrees)
x
I-Negative Amplitude (Ampere)
x
I-Negative Angle (Degrees)
x
I-Zero Amplitude (Ampere)
x
I-Zero Angle (Degrees)
x
Current THD
Crest Factor
x
K-Factor
The 1A/5A permanent or clamp-on CT-circuits interface
directly to the galvanically isolated current inputs.
Voltage output current transducers and Rigowsky coils
could also be used and directly interface to the powered
1VRMS current transducer inputs. The instrument
calculates ‘missing current’ by assuming the sum of all
currents = zero.
Power sources
x
Voltage Under-Deviation
Differential voltage inputs directly interfaces to VT circuits
or Mains circuits. The first 3x voltage inputs shares a
common reference and can accommodate either 3-or
4-wire systems. The 4th voltage input is fully differential.
Current
x
Voltage Phase Angle (Degrees)
Voltage
x
The digital inputs can be used to monitor the status of
substation equipment. For example, the breaker trip status
can be compared with power quality events to better
understand network performance.
The digital outputs allow innovative application in
switching and control of equipment.
x
Communication
x
x
x
x
x
x
x
2 x Gigabit Ethernet ports facilitate local and networked
external communication. One port is used to interface with
corporate networks (DHCP or fixed IP support). The second
port is used to create a local network (local DHCP server).
x
x
x
x
x
x
x
The remote support software, OspreyLite, supports
automatic service discovery protocols. Laptops, when
plugged in, will receive an IP address from the instrument
and the remote support software will automatically
discover which instruments are connected to the network.
The USB port can be used as an external peripheral
interface to devices such as mass storage, WiFi modules,
GPRS modems, actuators, digital input/output sensors, etc.
POWER
Active Power (Watt)
x
x
x
x
x
Reactive power (VAR)
x
x
x
x
x
Apparent Power (VA)
x
x
x
x
x
Power Angle (Degrees)
x
x
x
x
x
Power Factor
x
x
x
x
x
POWER – IMPORT
Imported Active Power (Watt)
x
x
Imported Reactive Power (VAR)
x
x
Imported Apparent Power (VA)
x
x
Imported Power Angle (Degrees)
x
x
Imported Power Factor
x
x
Also available as
Portable Investigation Unit
POWER – EXPORT
Exported Active Power (Watt)
x
x
Exported Reactive Power (VAR)
x
x
Exported Apparent Power (VA)
x
x
Exported Power Angle (Degrees)
x
x
Exported Power Factor
x
x
IEC-61000-4-30
IEC Conformance Flag
x
x
x
x
x
x
Enterprise Support
When connected, each instrument automatically establishes a
permanent secure communications link to a corporate server (local
or Internet based). An Instrument Management System (IMS)
keeps track of each instrument’s location, configuration, health
(telemetry) and data.
Data downloading is automated and recorded. It can be accessed
via the Internet in a report format as and when it becomes
available. Raw data can be exported for further analysis.
Specialist analysis tools are available to group events and to classify
and report on data according to industry standards like NRS048,
EN50160 and IEE1158. All communications are encrypted and each
instrument is password protected.
Sampling Rate
The Vecto II samples analog input signals at a rate of
500 kHz with 10-times oversampling. Waveform data
can therefore be captured at a sampling rate of 50kHz.
The user can further configure the subsampling rate to reduce the
stored data size. Subsampled data can be configured from 50kHz
down to 1kHz.
1/6th Sense
The Vecto II calculates 1-cycle sliding window RMS
and fundamental phasor parameters on every zerocross of each of the 3 phase voltages to result in a 1/6th
cycle resolution of parameters (6 samples per cycle).
This higher resolution 1-cycle profile data improves the accuracy of
depth/duration calculations and smoother event profiles.
Event Recording
Upper and/or lower thresholds can be defined for waveform,
1/6th sense, 10/12-Cycle block and aggregated parameters. Both
single-phase and multiple-phase trigger criteria can be customised.
The Vecto II retain pre- and post-information of the event with the
extent of this information configurable by the user.
10/12-Cycle Block Recording
The Vecto II calculates voltage and current phasors from the
10/12-cycle block of data (≈200ms block @ 50 Hz) up to the 64th
harmonic. Both amplitude and angle information of each harmonic
is retained and time-stamped with a 1μs time resolution.
The user can average N x blocks to reduce the number of samples.
Averaged block harmonic and unbalance phasors does not contain
angle information.
Clock Synchronised
Recording
10/12-Cycle block RMS and
Harmonic parameters are
aggregated according to
IEC61000-4-30 requirements
over a user-defined time
interval such as 3 seconds
and 10 minutes.
Clock
synchronised
parameters
are
timestamped with a 1s time
resolution.
VOLTAGE INPUTS
Number of channels
4 x differential inputs (3/4 Wire + 4th Diff)
Measurement input range
0 – 600 VRMS
Voltage measurement
Single Phase, 3-Phase (Star, Delta), DC
Input impedance/channel
> 1 MΩ
CURRENT INPUTS
Number of channels
4 x galvanically isolated inputs
Measurement input range
0 – 5.0 ARMS
Maximum continuous current
6.0 ARMS
3 sec over-current withstand
50 A
VA Burden @ 5A
< 1 VA
Galvanic isolation
1,000 V
CURRENT TRANSDUCER INPUTS
Number of channels
4 x differential inputs
Measurement input range
0 – 600 VRMS (VLN), 0-1000VRMS (VLL)
Input impedance/channel
> 1 MΩ
DIGITAL INPUTS
Number of Channels
4 galvanically isolated digital inputs
Voltage Rating
300 VRMS
DIGITAL OUTPUTS
Number of Channels
4 galvanically isolated digital outputs
Switch Rating
0,1 ARMS, 300VRMS (max)
ACCURACY & BANDWIDTH
Power frequency range
DC, 50Hz (40-60Hz), 60Hz (50-70 Hz)
Harmonic bandwidth
1-64th (harmonic and inter-harmonic)
Measurement sampling rate
500 kHz (simultaneously sampled)
Waveform storage rate
1kHz – 50kHz (user configurable)
ADC Resolution
16-Bit
Overall accuracy class
0.1%
Fast Transient Capturing
> 20 μs
COMMUNICATION
Ethernet
2 x Gigabit Ethernet – IEEE 802.3.2008 compliant
USB
2 x USB 2.0 – 480 Mbit (powered)
CLOCKS
On-Board GPS
On-board 3V3 power for active external antenna
Overall Accuracy Class
± 20 μs from absolute time
On-Board RTC drift
1 ppm (32-seconds per annum)
STORAGE
Capacity
4GB flash storage
POWER
Maximum Power Consumption
< 25 W
AC / DC supply voltage input range
90-300 VRMS 42-69 Hz (power factor corrected)
Power over Ethernet
IEEE 802.3 compliant (35-60 VDC)
On-board battery
LifePO4 (2,000 charge/discharge cycles)
PHYSICAL
Construction
Aluminum, 250 x 135 x 65 (L x W x H)
Mounting options
3U-19” Rack, DIN rail Mount, Wall Mount, Portable Case
Electrical connections
Pluggable screw type (screw lock-down)
Electrical isolation class
600V Class II
COMPLIANCE
PQ Measurement
IEC 61000-4-30 (Ed. 3), Class A
Harmonics
IEC 61000-4-7, Class I
Flicker
IEC 61000-4-15, Class F1
SCADA
Modbus over IP, IEC 61850 (Optional)
Bringing Quality to Power
CT LAB (Pty) Ltd.
15 Thermo Lane
Techno Park
7599 Stellenbosch
South Africa
www.ctlab.com
[email protected]
Phone: +27 21 8809915
Fax: +27 21 8801088