Signals & Systems India Private Limited
SANDS is primarily a technology company manufacturing niche products using embedded technology for the Generation, Transmission & Distribution segments of the Power Industry. On the Services front, we specialize in Meter Data Analytics for Power Distribution companies, to curb Energy thefts and fraud management. We also undertake testing of Energy meters at the site on behalf of the utilities as part of the regulatory guidelines.
- 18005729705
+91 8056020558 - sales@sandsindia.com
- 15/D-19, Third Main Road
SIPCOT IT Park, Siruseri, OMR
Chennai, Tamilnadu 603103
India
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Frequency Large Display Indicator
Signals & Systems India Private Limited
Large Display indicator measures and displays frequency from the input like supply voltage, 4-20mA and data received from other equipment. It meets high accuracy of 0.1% to measure Frequency. The large display is for clear visibility of the frequency reading from long distance. It is equipped with high bright red color 7segment displays. These are commonly used in Power plants, Substations, Manufacturing units and Field environments to provide direct frequency measurements of various devices.
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Kilovolt Large Display Indicator
Signals & Systems India Private Limited
Large display indicators measures and displays the Kilovolt from inputs like 63.5VAC, 4-20mA and data received from other equipment. It meets high accuracy of 0.1% to measure Kilovolt. The large display is for clear visibility of the kilovolt reading from a long distance. It is equipped with high bright red color 7 segment displays. These are commonly used in Power plants, Substations, Manufacturing units and Field environments to provide direct Kilovolt measurements.
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20Hz Injection Kit Monitoring System
Signals & Systems India Private Limited
The Display used to monitor the 20Hz and 50Hz current passing through NGT transformer. This could help to monitor the stator earth fault and could record the current every minute. The current shall be displayed in milliamps for both 20Hz and 50Hz. If an earth fault occurs in the generator star point, the 20 Hz voltage drives a current through the fault resistance. The current can be measured using clamp-on CT which would be clamped between load resistor and NGT. It gives an indication of the current values are lower or higher than the set threshold.
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Three Phase Reference Standard Meter
Signals & Systems India Private Limited
The Three Phase Reference Standard Meter (TPRS-1107) is portable equipment from SANDS. The main objective of this device is to calibrate the errors in three-phase and single-phase energy meters i.e. the meter under test (MUT). The TPRS supports both static and electro-mechanical types of meters. It can also be used to compute the voltage, current, energy, power factor etc of the meter under test. It has an LCD display, an alphanumeric keypad that makes it easy for the user to operate the TPRS. It can be interfaced with the PC for data analysis. It has the capability of storing up to 8000 test results.
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DLMS Meter Reading App
Signals & Systems India Private Limited
The DLMS meter reading application runs on Android mobile devices. It is an effective and efficient meter reading solution for DLMS meters (IEC-62056) & Smart meters (IS-16444). This application supports reading and Real-time viewing of field meter profiles, data view, programming the meter, smart meters connect/disconnect. This is also a solution to address the last mile connectivity issues- where the AMR and AMI networks failed due to network problems.
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GPS Wireless Clock
Signals & Systems India Private Limited
GPS Clock offers an easy, cost-effective solution for accurate, synchronized time displays without expensive, disruptive installation procedures. Because there are no wiring requirements, installation times are drastically reduced. It is ideal for renovation projects, as there is no need to worry about installation work, as well as new construction. The GPS clock can be synchronized through GPS Antenna or Wireless Antenna. The display can be wall/panel / tabletop mountable. It can be used as a wireless clock to synchronize many wireless slave clocks in and around the buildings.
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Automatic Meter Reading Unit
Signals & Systems India Private Limited
SANDS make of AMR Modem SAM-1101 is a smart electricity meter reading device that can be connected to any make of electronic energy meter by means of optical/ RS232 port, which is compliant to DLMS – IEC 62056-21 standard. The electricity meters measuring energy consumption can be located in either consumer premises or in distribution transformers. The modem draws its power from the meter terminal block and connects to the communication port of the meter. Thus this add-on energy meter reading system is non-intrusive and can be retrofitted easily to any meter. The Electricity Meter Reading device uses GSM/GPRS communication technology and has built-in intelligence to talk to the DLMS meter. AMR system is compatible with 4G network to push the power consumption-billing data, load survey data, and event data to a cloud-based server, with fallback options to 3G & 2G.
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GPS Master Clock
Signals & Systems India Private Limited
GPS Master Clock System – MCS-GPSMC-1010 is a 3U Card rack type, 19” Rack-mountable Redundant GPS Time Server which synchronizes and maintains the timing and frequency requirement of power and process industry equipment using a signal obtained from any one of the sources like GPS or GLONASS or Time protocols such as NTP and IRIG. It distributing the same time signal through several types of interfaces. It provides redundancy for Power and GPS receiver to increase reliability and offers protection against time synchronization failure. The system is field-upgradeable and an extremely flexible system, designed to handle time synchronization requirements today and in the future. It provides nanosecond accuracy when external time references are not available. It has a storage facility to store the system log file. It delivers NTP, SNTP, IRIG-B, PFC-Pulse, DCF77, BCD parallel data, Ethernet Fiber Optic & RS485/RS232 outputs. System enables configuration and monitoring through Web-based application. It supports a wide range of power supply either 90V-260V AC/DC or 18-36VDC or 36V-72VDC. Power supply model can be mixed and matched as required by the user, depending upon power supply options available at the installation site.
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GPS Synchronized Clock Systems
Signals & Systems India Private Limited
GPS synchronized clock system offers accurate time to all clocks in the system. The GPS clock synchronization system consists of a master clock and multiple slave clocks. The master clock communicates with all the salve clocks via wired/wireless medium in the system to provide them with an accurate time source. The objective of the GPS synchronized clock system is to make sure that all clocks in the system display the same time. Regardless of which part of the building you are in, the time shown by the clocks will be uniform and accurate.
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Megawatt Large Display Indicator
Signals & Systems India Private Limited
Large display indicator measures and displays the Megawatt from inputs like 63.5VAC, 4-20mA and data received from other equipment. It meets high accuracy of 0.1% to measure Megawatt. The large display is for clear visibility of the MegaWatt reading from a long distance. It is equipped with high bright red color 7segment displays. These are commonly used in Power plants, Substations, Manufacturing units and Field environments to provide direct Megawatt measurements.
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Dual-channel AMR Modem
Signals & Systems India Private Limited
DUAL-CHANNEL AMR is a combined Modem for remote reading & local reading via Bluetooth through the mobile app without opening the enclosure/seals. Dual Channel AMR Modem is an innovative device that can be connected to any make of electronic energy meter by means of optical/ RS232 port, which is compliant to DLMS – IEC 62056-21 standard. AMR system is compatible with 4G network to push the power consumption-billing data, load survey data, and event data to a cloud-based server, with fallback to 3G & 2G. The modem can be programmed to send any abnormal events to any number instantly. The modems have a ‘store and forward’ facility.
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Meter Test Equipment
Signals & Systems India Private Limited
Our meter test equipment is a user-friendly and innovative device for energy meter calibration, built on the current technologies – Bluetooth & Android. The metrology sub-unit measures and communicates the parameters to an Android Tab via Bluetooth. All user interfaces – textual, graphical, and data entry are made available on the Android application, with innovative features. Being a portable device measuring the voltages and currents from the metering panel, the product ensures the safety of the test personnel by making use of wireless communication between the equipment – which is connected to the High Voltage- and the user interface – Tab.
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IRIG-B TTL TO RS485 Converter
SPC - INS - 1010
Signals & Systems India Private Limited
The IRIG-B TTL signal is a time synchronization protocol that can be transmitted up to 50m maximum using coaxial cable. So the relay which is to be received the IRIG-B TTL signal may be far away from the IRIG-B source. The relay may be not able to synchronize with the GPS. To avoid such an incident in the field, some of the relays have provision to receive IRIG-B RS485 signal. The IRIG-B RS485 signal can able travel up to 1200m without any booster. All Time source equipment may not be supplied with IRIG-B RS485 signal output. The converter will act as a bridge between GPS Time source and Relays for time synchronization.
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Smart Polyglot - Wireless Probe
Signals & Systems India Private Limited
Smart Polyglot is designed to talk to meters of all protocols – PACT, ANSI, IEC. Not only does it talk over optical media, it interfaces with IR, IrDA meters as well, making it the only device that talks to any type of meter in any language.The Smart Polyglot has a wireless Bluetooth interface and enables seamless use with any DOS, Android, or Windows based devices with Bluetooth support. This Smart Polyglot Bluetooth probe can detect the commands from Bluetooth connected devices and establish a connection automatically for meter reading applications.
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20Hz Generator
Signals & Systems India Private Limited
In order to implement a 100 % stator earth fault protection based on subharmonic injection, a 20Hz voltage is injected into the generator star point. The 20-Hz generator SGEN-1001 is used in combination with the Band Pass Filter SBPF-1001 in the Stator Earth fault protection. The injection can be performed by connecting the SGEN-1001 and the SBPF-1001 to the load resistor of an earthing or neutral transformer. If an earth fault occurs in the generator star point, the 20 Hz voltage drives a current through the fault resistance. From the driving voltage and the fault current, the protective relay determines the fault resistance.
