Barmesa Pumps KTM Series, Инструкция по установке, эксплуатации и обслуживанию

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23
Impeller
rotation
(1) (2)
Direct-on-line starting
(Example)
Interchanging phases V and W.
How to verify the correct pump rotation
Ÿ
By looking at the impeller. The rotation of the impeller should be counter-clockwise as shown in the figure (1).
Ÿ By looking from the top of the pump. Since the impeller cannot be seen, the best way to chek the rotation is to check
the kick-back motion of the pump when the pump just starts. The kick-back motion of the pump should be counter-
clockwise as shown in figure (2).
Countermeasure: how to invert the rotation on three phase
Ÿ Interchange two of the three wires designated U, V and W respectively.
2. Operate the pump for one minute or less and perform the following checks:
Ÿ Operating current
Use an AC ammeter (clamp) to measure the current at the phase U, V & W that are connected to the terminal
board.
Ÿ Operating voltage
Use an AC voltmeter (tester) to measure the voltage at the terminal board. Power supply voltage tolerance is ±
10% of the rated voltage.
Ÿ Vibration
CAUTION
If the pump generates a considerable amount of vibration, noise or smell, disconnect the power supply
immediately and contact the dealer where you purchased the equipment or a BARMESA sales office in your
area.
3. Continue operations if no abnormal conditions are found during the trial operation.
5.3 Operation
WARNING
Ÿ The pump may be extremely hot during operation. To prevent bums, do not touch the pump with bare
hands.
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