The UltraTEV Alarm™ provides simple, low cost, continuous monitoring of substation switchgear. EA Technology’s UltraTEV Alarm™ can identify faults and safety issues BEFORE they lead to failures making it the Partial Discharge (PD) activity early warning system that businesses cannot be without.
Benefits:
Early warning of faults prevents failures
Enables timely interventions when maintenance is required
Warns personnel if switchgear is in a dangerous condition
Excellent cost/benefit justification
Features:
Effective continuous monitoring with both ultrasonic and Transient Earth Voltage (TEV) sensors
Multi-node sensor units can monitor 100+ assets simultaneously
Receive alerts anywhere, via email or text message
Simultaneously measures local humidity and temperature conditions
Central Hub unit LED indicators provide immediate indication of PD problems
Operation:
Measure the surface activity using the ultrasonic mode, and compare the result with those taken from other similar assets
Listen to the surface PD activity from the audio output (the system heterodynes the ultrasonic signal for this purpose)
Nodes are linked to the Alarm Hub which indicates when PD activity in one or more assets is at critical level
LEDs on the individual sensor nodes indicate which assets are affected
Audible/visible alarms can be mounted outside the substation for added safety
Ultrasonic Contact Probe detects PD activity in sealed cable boxes
Can be used as a portable system or installed permanently
Alarm Node:
Signal Input: Built in TEV sensor plus input for external ultrasonic sensor
TEV Pass band: 3 – 80 MHz
Ultrasonic Centre Frequency: 40 kHz
Indicators:
Power/Running LED Bi-colour Red/Green LED
Current TEV Alarm Bi-colour Red/Green LED
Historic TEV Alarm Bi-colour Red/Green LED
Current Ultrasonic Alarm Bi-colour Red/Green LED
Historic Ultrasonic Alarm Bi-colour Red/Green LED
Connectors:
Power and Alarm Signals 2 off four-way terminal block
Ultrasonic Sensor Lemo socket
Controls:
Reset Input: Recessed Push-button
Test Signal: Recessed Push-button
Outputs:
Alarm Signals: Pulse Code Modulation
Dimensions:
Size: 105 x 105 x 50 mm
Weight: 0.26 Kg
Power Supply:
Low Voltage DC: 24V 36 mA
IP Rating: 53
Please feel free to contact for detailed specifications, accessories, software and options.