EXPERIENCES:
Although most pumps installed with Pumptron as means of protection and control have been running faultlessly for over seven years since our first installation in 1995, there have been those cases where the benefit of Pumptron has became evident.
Here are some of those experiences. |
The
Cattai case:
A 3KV - 3 phase pump was somewhat malfunctioning. It would start for a few seconds and then go to overload condition. We attended the site and after checking that Pumptron was in good order it was determined that there was something wrong with the pump.
The pump was retrieved from a 180m deep bore.
After inspection it was found the shaft of the motor had become lose and the rotor was out of centre. The motor did not burn.
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The Windsor Downs case:
A 0.75KV - 3 phase pump would not work and Pumptron reported overload.
It was found the pump was in good order but Pumptron was reporting a malfunction within itself.
Pumptron's self test found a problem and stop itself from activating the pump.
The apparatus was repaired under guarantee although installation was over three years. |
The Ebenezer case:
A 7KV - 3 phase pump would not work even during the ten seconds priming time.
This pump has an integrated thermostat switch; the switch was connected to Pumptron's "float switch" facility. This would make the pump to stop if an indication of overheating would occur.
It was found that the thermostat switch of the pump had failed as it would not connect even when the pump had been OFF overnight.
The pump was then connected bypassing the thermostat. Heat is the result of overload. Pumptron's sensitive overload detector provides the necessary protection. The pump has been running faultlessly since August 2002.
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The Kenthurst case:
After four weeks from installation of this 3KV - 3 phase pump, Pumptron reported overload.
The pump was retrieved from a 200m deep bore to discover it was blocked by a massive iron oxide build up.
It was decided better not to use the bore.
The pump was undamaged and saved for further use. |
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