DAYLIFF D3SP Посібник з монтажу та експлуатації - Сторінка 7

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DAYLIFF D3SP Посібник з монтажу та експлуатації

1. Pump Specifications

Conventionally this is provided by a relay connected by cable to sensors in the

borehole water, though wireless electronic protection is also available.

DS/DSP/D3SP motors can be used with inverters for power by DC sources,

particularly solar modules and also variable speed operation. Further

information can be obtained from the pump supplier if there is a particular

installation requirement.

ii)

Single Phase Motors

WARNING

All single phase motors are supplied with control units including capacitors and a

switch. PSC motors are fitted with one combined start/run capacitor while CS/CR

motors are fitted with separate start and run capacitors with a change-over relay.

Specifications are as follows:-

Motor Size

0.37kW

0.75kW

1.1kW

1.5kW

2.2kW

Small single phase motors (up to 1.1kW) are fitted with inbuilt thermal overload

protection though for added motor security it is advisable to fit a voltage protection

unit such as a Dayliff AVS. For motors larger than 1.1kW a DOL starter is required

and this can be provided by a separate DOL contactor and overload unit or

alternatively by a DAYLIFF Drytek controller which includes over/under current

protection plus multi-function power input protection and wireless low level

protection by cosØ monitoring. Digital indications of operating parameters are

also provided including current, voltage and cosØ. For full motor protection a

Drytek controller is recommended.

iii) Three Phase Motors

All three phase motors require DOL starting and overload protection. Drytek

controllers as detailed for single phase motors are recommended for enhanced

protection and prolonged life.

Correct connection of terminals and identification of the start,

run and common windings is essential or else the motor will

burn out. Extra care must therefore be taken when connecting

and if in doubt the pump supplier should be consulted.

Type

PSC

CS/CR

Start Capacitor

200-250

Run Capacitor