Steam turbine and power management control upgrade
PEA (Provincial Electricity Authority) provides Baanrai with a 22 kV Grid connection via PEA Grid #1 and #2. The existing governing system installed was a combination of WW 505’s and UG8 governors. The main issues that Baanrai was experiencing was very poor Grid export power regulation and significant voltage swings, making it difficult to maintain a parallel Grid connection with the 27 MW T/G. In some cases, PEA Grid #2 trip also caused tripping of 27 MW T/G. This led to factory shutdowns & significant “downtime”.
With the assistance of SWTS & MARC, HEINZMANN Australia was able to provide Baanrai Sugar Industry with a comprehensive steam turbine and power management control upgrade for 2 x 27 MW & 1 x 20 MW T/Gs.
This resulted in improved quality of export power (via GSM), satisfying PEA Grid standards and the added feature of Grid voltage control (via GSM) maintained a steady 22.0 kV. This also eliminated trips on “Over & Under Voltage”, with no need for OLTC (On-Line Tap Changer) adjustment. The ROI
for Baanrai was around 3 months
Upgrade of steam turbine and power management control
3x HEINZMANN Si-TEC Xtend CGC-T
8x HEINZMANN Si-TEC Xtend GSM
Bio-Energy & Factory Power Plant (sugar mill)
3 x SNM backpressure steam turbine generators
2x 27 MW
1x 20 MW