Tabulated Data - TM-5-6625-2691-13-P0014

(4) Control transformer.

1-6. Tabulated Data

a. Identification. The test set has 10 major identifica-

Manufacturer . . . . . . . . . . . Essex Electro Engineers, Inc.

Dual Voltage . . . . . . . . . . . 120/240 primary;

tion plates. The information contained on these plates

26 secondary

is listed below.

Rating . . . . . . . . . . . . . . . 120 VAC input; 26 VAC out-

(1) Identification plate. The identification plate is

put; 240 VAC input; 26

attached to the left of the control panel door. It lists

VAC output

Capacity . . . . . . . . . . . . . 100 volt amps

serial number, contract number, stock number, model

Phase . . . . . . . . . . . . . . . . Single

number, shipping weight and other pertinent unit

(5) Variable transformer.

data.

Manufacturer . . . . . . . . . . . Essex Electro Engineers, Inc.

(2) Ground plate. The plate is located on the load

Type . . . . . . . . . . . . . . . . Stepless output, manually

terminal post directly below the grounding bolt (fig.

adjusted three gang 240/

1-3).

120 V input, 0-240 output

(3) High voltage connector plate. This plate is lo-

Rating . . . . . . . . . . . . . . . 0 to 3 KW, 3-gang, 3-phase;

manually controlled 240/

cated on the load terminal post directly above the

120 V

240/416 volt receptacle (fig. 2-2).

(6) Contactor.

(4) Low voltage connector plate. This plate is lo-

Manufacturer . . . . . . . . . . . Essex Electro Engineers, Inc.

cated on the load terminal post directly below the

Rating . . . . . . . . . . . . . . . 3 pst, 200 amp, 240 V, AC,

120/208 volt receptacle (fig. 2-2).

24 VDC coil

(5) Instruction plate. This plate is attached to the

Type . . . . . . . . . . . . . . . . 3 pst (Pole, single throw) 24

inside of the left side door. It explains the operating

VDC, 200 A

procedure for the load bank.

(7) Fan motor.

(6) Schematic plate and wiring plate. The electri-

Manufacturer . . . . . . . . . . . Essex Electro Engineers, Inc.

cal schematic plate is located on the inside of the left

Type . . . . . . . . . . . . . . . . 24 VDC

Rating . . . . . . . . . . . . . . . 1/16 HP minimum at 2100

side door. It illustrates the complete unit wiring.

RPM

(7) Load switch plate. The plate identifies the load

Type . . . . . . . . . . . . . . . . 24 VDC

switches it is attached on the control panel (fig. 2-l).

Duty . . . . . . . . . . . . . . . . Continuous

Degree enclosure . . . . . . . . Full

(8) Master switch plate. This plate identifies the

Mounting . . . . . . . . . . . . . Within power absorber

master switch located on the control panel (fig. 2-l).

(8) Rectifier.

(9) Variable load control plate. This plate iden-

Rating . . . . . . . . . . . . . . . 6 AMP DC

tifies the variable load control. An arrow indicates a

Phase . . . . . . . . . . . . . . . . 3

clockwise turn of the control to increase the load. It is

(9) Voltage, sensing module.

located on the control panel (fig. 2-l).

Rating . . . . . . . . . . . . . . 3 pole normally closed, E

(10) Voltage selector plate. This plate identifies the

AMP contact will open with

an applied input 31 to 39

voltage selector switch for a high voltage 240/416 V or a

low voltage 120/208 V condition.

(10) Test set capacity.

b. Tabulated Data. The following is a tabulated

Continuous rating . . . . . . . . 120/208 or 240/416 volt, 3

listing of major components of the Model A427

phase, 4 wire, or 120 or

and Model A427B test sets. Although the physical

240 volt, 1 phase, 2 wire

description of all of these components is the same

at 50-1000 cps

Fixed loads . . . . . . . . . . . . 3, 6, 9, 12 or any combina-

for both models, only the variable transformer is

tion up to 30 KW in multi-

physically and electrically identical on both units

pies of 3

that they may be interchanged.

Variable loads . . . . . . . . . . 0 to 3 KW combined fixed

(1) Test set.

and variable control of lost

between 0.5 KW and 33 KV

Manufacturer . . . . . . . . .

Essex Electro Engineers, Inc.

single phase or balanced

A427 & A427B

Model . . . . . . . . . . . . . .

phase operation with fixed

Type . . . . . . . . . . . . . .

Portable skid mounted

and variable load switche

Power . . . . . . . . . . . . . .

From connected power unit

in proper condition.

(2) Power absorbers.

Temperature limits . . . . . . . 25 F. (-4 C.) to +125 F. (52

Manufacturer . . . . . . . . . . .

Essex Electro Engineers, Inc.

C.) at relative humidity up

Type . . . . . . . . . . . . . . . .

Circular, fan cooled

to 100%

Rating per Absorber . . . . . .

11 Kilowatts

( KW)

Altitude range . . . . . . . . . . Sea level to 8,000 feet (240

Resistive Elements . . , , . . .

4 Elements: 9, 1, 4, KW

meters)

(3) Rectifier.

Acceleration limits . . . . . . . 2.5 g momentarily applied to

any 3 major axis; in both

Manufacturer . . . . . . . . . . . Essex Electro Engineers, Inc.

directions

Type . . . . . . . . . . . . . . . . Selenium (Model A427)

Change 1

1-5