Uncategorized

Generator Monitoring System

Features
1. Insulation condition of Stator winding
■ Measures and analyzes the partial discharge
generated from the defects in the stator winding insulation
2. Insulation condition of Rotor winding
■ Analyzes the change in the rotor flux
3. Looseness of End winding mechanical parts
■ Measures End winding vibration
4. Additionally
■ Monitors the phase current, voltage and neutral current
■ Monitors the air-gap by the air-gap capacitance

Integrated Generator Condition Monitoring System
: Stator/Rotor winding insulation, End vibration and Air-gap diagnostics

It is an on-line integrated diagnostic monitoring system for large hydro and turbine generators. It consists of Stator partial discharge monitoring system, Rotor shorted-turn monitoring system and End winding vibration monitoring system. For PD, Slot Sensors, Coupling Capacitors (80pF or more), RTD Modules can be applied to cover wide range of stator.

NO. 

Item  

Description

1

PD channels (1-9)

15 (6 channels for RTD)

2

Frequency band Dynamic

0.5 ~ 10 MHz

3

Amplitude range

70 dB

4

Power frequency phase resolution

7.5°

5

Noise channel

1

6

Magnetic Flux

1

7

Temperature channels, RTD

3

8

Humidity channel, Hm

1

9

Current channels, I A/B/C

3

10

Voltage channels, U A/B/C

3

11

Data memory

32 MB

12

Communication interface

USB / RS-232 / RS-485

13

Communication protocol

Modbus RTU

14

Output relay

2 (Status / Alarm)

15

Power supply

100~240 VAC, 50/60 Hz

16

Operating temperature

-40℃ ~ 50℃

17

Dimensions

270×170×35 mm