Dynamic Ratings Sensors
Sensors and Accessories
Dynamic Ratings offers a wide variety of sensors to monitor the condition of electrical apparatus. We have patented designs, and manufacture our line of sensors to ensure that the highest quality and accuracy requirements are consistently achieved. These sensors and accessories convert the measured properties into a signal readily used by a transducer or an intelligent device such as a Dynamic Ratings Monitoring System.
Our sensors are designed to be highly sensitive and accurate to meet the needs of our customer’s applications. Dynamic Ratings sensors and accessories exceed industry standards for quality and performance coupled with ease of installation.
Bushing Sensors
For monitoring bushings on a transformer.
Partial Discharge Sensors
For monitoring PD in transformers and machines.
Power Factor Sensor for HVCTs
For monitoring Power Factor and Capacitance of High Voltage Current Transformers.
GIC Sensors
For monitoring geomagnetic induced current.
Tap Position Sensor & Display
For monitoring on load tap changers (OLTC) on a transformer.
H2 Sensors
For monitoring hydrogen in a transformer.
Temperature
For monitoring temperature in a transformer.
BAU+ Sensors
Bushing Sensors are typically applied to bushings on power transformers and high voltage current transformers. The sensors provide both high frequency signal detection for partial discharge detection and low frequency detection for bushing monitoring.
Rogowski Coils
Rogowski Coils complement the bushing sensors to provide a directionally sensitive indication of PD activity, allowing the monitoring equipment to recognize the difference between internal PD sources and externally generated signals.
Geomagnetic Induced Current Sensor (GIC)
The substation hardened GIC-4 sensor is offered in fixed, split, and dual sensing cabinet packaging specifically designed for the measurement of geomagnetic induced currents in the transformer neutral ground connection. Split core models allow for rapid installation in energized applications.
Hydrogen Sensor
When paired with a transformer monitor, Dynamic Ratings Hydrogen Sensor r is a cost effective way to implement online condition based monitoring. The Hydrogen Sensor can measure hydrogen in the oil or gas headspace of power transformers.
Hydrogen & Moisture Sensor
Dynamic Ratings multi-parameter sensor combines four critical measurements for monitoring of critical power transformers: Hydrogen, moisture, pressure and temperature. By combining these parameters into a single low cost and maintenance free sensor, asset managers have the ability to correlate data to get better trending of hydrogen and moisture values.
Hydrogen Analog Module
The Hydrogen Analog Output Module (AOM1) pairs with Dynamic Ratings Hydrogen sensor to provide a simple interface to any transformer monitor, relay or controller that accepts a 4-20mA signal. The AOM1 allows users to change oil types and select the optimal analog output range without the need for a PC or software, via DIP switches.
Rotating Wetwell Valve
Introducing a new valve solution which allows for easy placement of sensors through tank walls without encumbering existing drain/fill valves. These heavy gauge stainless steel ‘sensor wells’ allow for easy sensor access to the inside of the tank for the measurement of internal operating conditions. Once installed, they allow sensors to be installed or replaced without draining the tank and without taking the equipment out of service.
BAU+ Sensors
Bushing Sensors are typically applied to bushings on power transformers and high voltage current transformers. The sensors provide both high frequency signal detection for partial discharge detection and low frequency detection for bushing monitoring.
Rogowski Coils
Rogowski Coils complement the bushing sensors to provide a directionally sensitive indication of PD activity, allowing the monitoring equipment to recognize the difference between internal PD sources and externally generated signals.
RTD-PD Modules
The RTD Partial Discharge sensor Modules utilize existing RTDs embedded within the windings of rotating equipment to provide additional winding coverage.
Radio Frequency Current Transformers (RFCT)
RFCTs measure PD in the ground circuits of a variety of electrical equipment. RFCTs are typically applied to grounded cable shields and the neutral connection on a large power transformer.
Ground Path Current Sensor (GPCS)
The Ground Path Current Sensor (GPCS) provides non-invasive, directionally sensitive Partial Discharge (PD) detection in electrical equipment. It is designed to detect high frequency currents induced on the grounded surfaces of HV components like isolated phase bus duct enclosures, feeder cable shields of switchgear, HV cable terminations, etc.
Coupling Capacitors
Coupling Capacitors are a versatile partial discharge sensor commonly used to detect PD in many applications including generators, switchgear, motors, isolated phase bus (IPB) and power transformers. We offer four voltage levels: 8, 16, 28 and 38 kV.
Tap Position Sensor and Display
The Dynamic Ratings Tap Position Sensor is a robust single solution that meets stringent electrical standards to ensure reliable operation and long life. The Tap Position sensor connects directly to the tap changer on your asset, using an industry-standard optical encoder to detect the position of the tap changer and relay that information to your Dynamic Ratings E3 or C50 transformer monitor.
Magnetic Mount Temperature Sensors (MMTS)
Magnetic Mount Temperature Sensors are designed to provide an easy method for measuring transformer top oil, bottom oil, or load tap changer tank temperatures. They are designed to be highly accurate and reliable while providing a variety of sensor outputs and terminal options to accommodate the user requirements.
Fiber Optic Temperature Module
Fiber optic temperature modules provide direct winding temperature measurement on critical transformer applications, including large auto, generator set-up, mobile or critical installation transformers. Modules are available for use with either ceramic phosphorescent tipped probes (Luxtron) or GaAs probes (FISO or other GaAs probes). Modules are typically bundled with the E3 or C50 Transformer Monitors, allowing an automatic comparison of the real-time measured temperatures to the advanced analytics calculations, providing the ultimate in accuracy
RTD Temperature Sensor
Dynamic Ratings offers several temperature sensors to meet the needs of various typical measurements – from liquid measurements such as transformer oil temperature, through to solar shielded sensors for ambient temperature.
BAU-HVCT Sensor
The BAU-HVCT is a Bushing Adapter Unit (BAU) sensor designed for use on High Voltage Current Transformers (HVCT). It is a compact sensor commonly installed in series with the grounding wire in the CT junction box. The BAU-HVCT Sensor serves multiple purposes which eliminates the needs to purchase a unique sensor for each application. It monitors and measures the power factor, capacitance values, and the leakage current to calculate the imbalance of the system. With connection to the C50 Bushing Monitor, data trending can track faults and indicate a potential problem. Download the Brochure.