Deni 5300 Specifications download pdf (Page 12)

Magtrol Model 5300 Three Phase Power AnalyzerChapter 3 - Connecting the 5300

SINGLE PHASE AC OR DC

CONNECTIONS

See figure 2.

NOTE: Connections are shown grouped

in cables.

This diagram shows the phase 1 (Ø

) voltage and current

inputs connected for measurement. However, any of

the 3-phase inputs can be used. The unused two inputs

are jumpered to insure zero inputs.

Power in watts is calculated as follows:

P = E × I × cos q

( where q is the phase angle between E and I)

On the 5300, select DISPLAY - Ø

and

MODE -PH. V.

The 5300 displays VOLTS, AMPS and WATTS.

This circuit uses the 5300 PA remote voltage sense

feature by measuring the voltage at the load. This

increases measurement accuracy by eliminating line

voltage drop from the power measurement. For safety,

an overload circuit breaker (CB) removes all load

voltage during an over-current condition. The voltage

sense lines are connected at the line side of CB to help

prevent inductive transients from entering the PA as

the CB opens. Make sure that connections from CB to

the load are heavy conductors and short as possible.

If a circuit breaker is used in the input line

to the 5300 PA, a circuit should be used

that prevents the breaker from opening until

after the load side breaker has opened.

Otherwise, potentially damaging inductive

transients can be applied to the 5300 PA.

Damage caused by these transients are

outside the scope of the MAGTROL

WARRANTY.

For voltage sense lines less than 25 feet in

length, a twisted pair of #20 gauge (or

larger) wire can be used. For lines longer

than 25 feet or lines grouped with other AC

conductors, shielded cable should be used.

Connect the shield at the 5300 PA GND

terminal. If the wires connecting the load to

the 5300 PA OUTPUT are short and the

resulting voltage drop is insignificant, the

voltage sense connections can be made at

the rear panel of the 5300 PA.

Connect the chassis ground terminal to

a good earth ground. Use at least #12

gauge insulated copper wire.

Figure 2. Single Phase AC or DC Connections

INPUT AMPS OUTPUT VOLTS

Ø1

Ø2

Ø3

HIGHLOW

LOW

(WHITE)

EARTH

(BLACK)

HIGH

VOLTAGE SENSE

LOAD

LINE =

LOAD

SURGE PROTECTION NOT SHOWN

5300 PA

INDICATES CABLING WITH 2 CONDUCTORS.

CABLE MUST BE FULL LOAD

LINE =

LOAD

W B

Ø1

Ø2

Ø3

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 39 40

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Deni 5300 Specifications Page 12

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