BM201

Transformer Bushing Monitor 

Advanced Bushing Monitoring Module for Industry Applications

Rugged Monitoring’s BM201 bushing monitor detects insulation deterioration and other faults early on, ensuring accuracy and dependability in high-voltage substation environments. It measures power factor/tan delta and capacitance for precise early-fault analysis, reducing transformer outages caused by bushing failures.

Features
  • More than 45+ customizable bushing tap adaptors 
  • Highly accurate measurement for Tan δ and Capacitance 
  • Double protection for earthing link breakage 
  • Easy to install and commission
Benefits
  • Minimize asset outages due to bushing failure 
  • Efficient failure prevention
  • Optimized bushing replacement planning
  • Cost-optimized solution 
  • Faster integration with SCADA or Cloud
Applications
  • Monitoring of condensing/ capacitive type bushings 
  • Monitoring of Transformer Bushings
Technical specifications

Electrical Specifications

Measurement Range Leakage Current

1 to 280 mA, with a minimum resolution of 0.1 mA

Sampling Rate

3 kS/s

Bandwidth

2-90Hz

Resolution

16 bits

System Accuracy
  • Leakage Current: ± 0.5%
  • Tan Delta (PF): ± 0.1%
  • Capacitance: ± 0.5%
  • Voltage: ± 0.5%
Amplitude measurement error

±0.5%

Phase angle measurement error

0.05°

Scan Rate / Time Resolution

1 sec/channel

Input Voltage

24 V/48 V =(Vdc)

# of Relays Outputs

01 x Fail Safe Relay for System Failure

Maximum Power Input

10 W

Communication
Serial Port

RS-485 with Modbus RTU

Configuration Port

USB (to use with RM Connect windows software)

Environmental Specifications
Operating Temperature

-25 °C to +75 °C

Storage Temperature

-40 °C to +85 °C

Humidity

95% Non-Condensing

Mechanical Specifications
Dimensions

4.92″ x 4.92″ x 1.89″ (125mm x 125mm x 48mm)

Number of Input Channels

3 or 6 channels

Ordering Code

Our Presence Across the Globe

Head Office

CANADA
1415 Frank-Carrel, Suite
230, Quebec, QC – G1N
4N7, CANADA