SilverFern Power

Suzhou Suzhou,  Jiangsu Province 
China
http://en.silverfernpower.com/
  • Booth: 12154


Build Eyes/Ears for Smart Grid w/ Synchronized Measurements.

SilverFern Power provides Wide Area Timing Synchronized Measurement Syetem Solution to utilites.  It consists of smart grid sensors (SGSs) and a cloud-based big data analytical platform. The micro sensor can be used to measure line current, temperature and voltage. It collects data at 256 samples/cycle. All data is fully synchronized with 1us, which is particularly applicable for building a WAMS. 

Brands: Fault Detection, Pre-failure notification, Online monitoring, Smart Grid Sensor, Cloud-based Big Data Analysis, Smart Distribution Network Monitoring System, SilverFern Power


 Products

  • LinePatrol® Smart Grid Sensor (SGS )
    SGS is an inductively self-powered intelligent device, easy to install and maintenance free. They are used to measure the line current, temperature and voltage (on demand) with high precision and accurate timing synchronization....

  • 1us Wide-Area Timing Synchronization

    SGS can be used to measure power line current, temperature and voltage. All the sampling data from each device have a time stamp and the timing error is within 1 microsecond. It is particularly designed to build a Wide Area Measurement System (WAMS) for power distribution network.

    High Waveform Fidelity

    The waveform data is captured at 256 samples per cycle (15,360 samples per second @60Hz, 12,800 samples per second @50Hz) with 16 bits, exceeding the sampling rate of most substation equipment. Therefore, the traditional assembly waveform recorder used in substation can be replaced. It's especially suitable for disturbance event analysis and post fault analysis.

    In ungrounded neutral grounding system (UNGS), high precision of timing synchronization, sampling and measurement are critical for Single-Phase Earth Fault analysis, detection and location, which shares 80% of total faults.

    Powered by hi-definition waveform data and multiple intelligent algorisms, SGSs working together with SFPlatform can quickly sense and properly identify any abnormality in distribution grid. Any single-phase earth fault generating more than 1A zero-sequence current can be detected and located at nearly 100% rate.

    Applications

    • Load Monitoring: Current, temperature, voltage, harmonics and three phase imbalance;
    • Distributed Event Recorder: Capturing and analyzing the unique waveform signature generated by events;

    • Wide Area Timing Synchronized Instantaneous Measurement: Real-time power flow state and line loss can be calculated;

    • Power Theft Detection: Power consumption of end users can be monitored;

    • Fault and Pre-fault Identification and Location: Shift utilities from reacting to outages to preemptively tackling issues that may cause real faults in the future.

    Off Peak Line Current

    6A at full operation

    Conducotr Diameter

    8mm-40mm

    Timing Synchronization

    1us

    Current Range & Precision

    0-100A: ±0.5A,

    100-600A: ±0.5%

    Sampling Rate

    256 samples/cycle

    Waveform Record Length

    400ms default (configurable)

    Number of Records

    1000

    Long Distance Communication

    2G/3G/4G

    Dimensions (H*W*L)

    220×130x110 mm

    Weight

    3.0 kg

    Ingress Protection /

    Flame Retardant Rating

    IP66/V0

    Installation

    Hot stick with no pole-mounted equipment

    Features

    • Data Synchronization

              Data from all locations across the distribution network are timing synchronized

              and aligned with  1us accuracy.

    • Inductively Power Supply & Noninvasive Installation

             SGS is self-powered and supports noninvasive installation using a hot-stick or

             hot-glove in a minute. There is no need of extra cable wiring or routing.

    • High Precision & High Sampling Rate

             Data are sampled at 256 samples per cycle (15,360 samples per second @60Hz,

             12,800 samples per second @50Hz) with 16 bits. It is critical for Single-Phase 

             Earth Fault analysis, detection and location.

    • Equipotential Design

             SGS is equipotential to the power line. There is no insulation risk.

    • Remotely Configurable & Upgradeable

             SGS is software-defined, over-the-air upgradeable and maintenance free. 

    For more information, please contact us : 86 512 86868640

  • Smart Distribution Network Monitoring System
    The monitoring system consists of LinePatrol® and SFPlatform, a Cloud-based Big Data Analysis platform. It provides utilities with high quality, time coherent data, allowing them to improve reliability and efficiency while reduce the operational cost....

  • System Description

    Nowadays utilities are facing the requirements to improve the reliability for distribution grid, while operating and maintaining aging infrastructure with limited budgets. Silverfern Power (SFP) equips utilities withSmart Distribution Network Monitoring System to meet these challenges.

    SFP's Smart Distribution Network Monitoring System consists of LinePatrol®, a high precision wide-area timing synchronized smart grid sensor (SGS) and SFPlatform, a Cloud-based Big Data Analysis platform.

    SGSs can be easily installed on both overhead power lines and underground cables. They are used to measure the line current, temperature and voltage (on demand) with high precision and accurate timing synchronization. Any faults and disturbances in the distribution network can be captured and the waveform data are first stored locally and then transmitted to Cloud-based SFPlatform via Internet of Things.

    SFPlatform collects, records and analyzes the timing synchronized data over time and provides utility operators with insights into the feeders and system-wide network.

    This monitoring system is a wide area timing synchronized system. Measuring data from the SGSs on different locations among the distribution network are time stamped and aligned in micro-second. It provides utilities with high quality, time coherent data throughout their distribution networks, allowing them to improve reliability and efficiency while reduce the operational cost.

    Taking advantage of big data analysis, the system identifies not only faults but also abnormal disturbances, and then alerts operators visually and notifies repair crews via SMS and APP in time, which helps to reduce outage duration and enables faster response to lower SAIDI and CAIDI.

    LinePatrol®Smart Grid Sensor (SGS) +SFPlatform Cloud-based Big Data Analysis

    • SGS can be used to measure power line current, temperature and voltage. All the sampling data from each device have a time stamp with unit of micro-second, which means all these data sampling is fully synchronized within 1 us. It is particularly applicable for building a Wide Area Measurement System (WAMS) for power distribution network.
    • Each SGS integrates wireless data modules to communicate with SFPlatform or Main Station via 2G/3G/4G.

    • SGS is inductively self-powered with no pole-mounted power supply equipment required.

    • SFPlatform is modular, highly flexible and scalable. Management module provides SGS's management for efficient rollout deployment and maintenance. While analysis modules turn the collected raw data into the critical information as well as the visibility of distribution network.

    Applitions

    1. Load Monitoring
    2. Distributed Event Recorder
    3. Wide Area Timing Synchronized Instantaneous Measurement
    4. Power Theft Detection and Status Monitor for Equipment used in Distribution Network
    5. Fault Location and Pre-fault Identification

    Key Features

    1. Data Synchronization
    2. Inductively Power Supply & Noninvasive Installation
    3. High Precision & High Sampling Rate
    4. Single-Phase Earth Fault Detection & Location
    5. Equipotential Design
    6. Remotely Configurable & Upgradeable

    Specifications

    Design Electrical Frequency

    50Hz/60Hz

    Line Voltage Rating

    6~110kV

    Off Peak Line Current

    6A at full operation

    Operating Temperature

    -40˚C~ 85˚C

    Conductor Diameter

    8mm~40mm

    Timing Synchronization

    1us

    Voltage Measurement Precision

    1%

    Current Range & Precision

    0~100A: ±0.5A,

    100~600A: ±0.5%,

    >600A: ±10%

    Sampling Rate

    256 samples/cycle

    Power Quality

    Computes amplitude of voltage/current up to the 13th harmonic

    Fault Current Range

    0~10kA RMS fault current

    Waveform Record Length

    400ms default (configurable)

    Number of Records

    1000

    Temperature Range & Precision

    -40˚C~125˚C/±1˚C

    Local Communication

    2.4GHz

    Long Distance Communication

    2G/3G/4G

    Communication Protocol

    IEC 60870-5-101/104

    Dimensions (H*W*L)

    220 mm×130 mm×110mm

    Weight

    2.95kg

    Installation

    Hot-stick with no pole-mounted equipment

    Ingress Protection

    IP66

    Flame Retardant Rating

    V0

    Life Cycle

    >8 years

    /

    /

    Application

    Since April 2015, dozens of Smart Distribution Network Monitoring Systems with thousands of sensors have been put into field operation.

    The unknown operational status of distribution network for utilities in the past has become completely visible since the systems are in service. The system monitors the distribution network 24/7 for events and faults. With the help of the system, inspection crews improve their efficiency greatly and the outage time is significantly shortened.

    Configurations

    • Basic Monitoring System

    One SGS is installed in the substation to measure the zero-sequence voltage of a bus,and two groups of SGSs are installed on both ends of every feeder to measure the three-phase current. 

    • Advanced Monitoring System

    Based on the above scheme, two more groups of SGSs can be installed on both ends of each feeder to measure the line voltage. With the simultaneously sampled current and voltage, the power flow and line loss can be calculated. 

    • Combined with Smart Switch for Fast Fault Isolation

    More groups of SGSs can be installed at the position of smart switches so that the faulted section can be precisely determined and quickly isolated via the switches.

    For more information, please contact us : 86 512 86868640


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