PD-MIMS (Motor Insulation Monitoring System) detects partial discharge (PD) coming from the inside of high voltage motors and generators, the PD signal coupling in each phase (A, B, C Phase) using capacitor coupler. This system executes the surveillance and canalization of insulation condition of the high voltage motors and generators through QM/NQN analysis.
PD-MIMS provides user friendly software which allows access to the measured data from a remote office using RS-422/485 and LAN.
PD-MIMS also provides software which is designed to analyze, manage and interpret measured data and can be set to report daily, weekly or monthly.
- PD-MIMS continually monitors and stores test results.
- Detects abnormal conditions in motors and generators giving early warning when action is needed to prevent failure.
- Reduces maintenance costs and operational expenses.
- This test device continuously scans between 200kHZ – 300MHz.
Figure 1 The motor and generator
Figure 2 EMCs sensor on generator
Figure 3 Display of Partial Discharge Measured Data
|System type||: PD-MIMS_SCM-01|
|: Mounted type|
|Number of channel||: 3|
|Input impedance||: 50 Ω|
|Sensor||: Epoxy Mica Coupler (80 pF/6.6 kV)|
|Noise rejection||: BPF (Band pass filter), PD shape recognition (Pattern recognition), PD counts in burst are captured (Envelop)|
|Frequency bandwidth||: 200 kHz – 300 MHz, ±3dB Max|
|System configuration||: Programmable parameters option allows the user to set each phase of generator and motor|
|: Provides early warning signal for potential failures|
|: Auto mode operation|
|System operation||: Win 98/NT/2000/XP Environment|
|Display unit||: Operation status|
|Data management||: Partial Discharge counts in bursts are captured|
|: Analysis of pulse count distribution per phase|
|: 2D, 3D and QM&NQN graphic display for ease of diagnosis|
|Data analysis||: Ability to trend and forecast a known fault|
|: User setting are possible for data collection|
|Communication||: RS-232, 15m (19200 bps)|
|: RS-422, 500m (19200 bps)|
|: LAN (TCP/IP)|
|Power requirement||: 110/240VAC, 50/60HZ, 1A/0.5A|
|Size||: 13”(W) x 13”(H) x 6”(D), 12 lbs|
|Application targets||: Motor and Generator|