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D341, D341/1

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Wattmeter D341, D341/1 (D 341, D-341, D 341/1, D-341/1)

Designed: type D341 to measure active power, and the type D341 / 1 for measuring reactive power in three-phase AC 50Hz with uneven load phases.

Wattmeters D341, D341/1 three-phase
Purpose and Scope
Wattmeter D341, D341/1 are panel meters ferrodinamicheskoy self-indicating system designed: type D341 to measure active power, and the type D341/1 for the measurement of reactive power in three-phase AC 50Hz with uneven load phases.
They are made ​​to specifications of the TU-P № OPP.533.038-53 and designed for operation at an ambient temperature of -20 to +50 ° C and relative humidity up to 80%.
Wattmeter D341, D341/1 used in power plants stationary type.
 
The main technical characteristics
1. Accuracy Class 2.5 devices. The basic error of their normal temperature does not exceed 2.5% of the span.
2. Change in the readings due to the change of ambient temperature does not exceed 2.5% of the span per 10 ° C change in either direction from normal.
3. Changing indications of changes in the frequency of 5 Hz at no more than 2.5% of full scale.
4. Changing indications of the influence of external magnetic field strength does not exceed 5 Oe 2.5% of full scale.
5. When only one voltage to +10% of the nominal change in testimony does not exceed 2.5% of the span.
6. Dielectric strength between live parts and the housing unit Q2.
7. Unit weight 2.5 kg.
 
Measurement range wattmeter type D341 and D341/1 are shown in Table.

A way to incorporate a parallel circuit watt meter

Nominal
tion voltage,

A way to incorporate a series circuit wattmeter

directly

Through current transformers with a secondary winding on the 5A

Rated current, A

5
7.5
10
15
20
30

Maximum value measured in kW

directly
127
1 kW
1.5 kW
2 kW
3 kW
4 kW
6 kW
220
2 kW
2 kW
4 kW
6 kW
8 kW
12 kW
by measuring the voltage transformer with a secondary winding on the 127
380
3.5 kW
5 kW
7 kW
10 kW
15 kW
20 kW
 
 
 
 
 

Way to enable parallel goal watt meter

Rated voltage,

How to enable a consistent goal wattmeter

Through current transformers with a secondary winding on the 5A

Rated current, A

40
50
75
100
150
 
directly
127
8 kW
10 kW
15 kW
20 kW
30 kW
220
15 kW
20 kW
30 kW
40 kW
60 kW
by measuring the voltage transformer with a secondary winding on the 127
380
25 kW
35 kW
50 kW
70 kW
100 kW
 

Way to enable parallel goal watt meter

Nomination
flax voltage
tion, in

How to enable a consistent goal wattmeter

Through current transformers with a secondary winding on the 5A

Rated current, A

200
300
400
600
750
1000

Maximum value measured in kW

directly
127
40 kW
60 kW
80 kW
120 kW
150 kW
200 kW
220
80 kW
120 kW
150 kW
250 kW
300 kW
400 kW
by measuring the voltage transformer with a secondary winding on the 127
380
150 kW
200 kW
250 kW
400 kW
500 kW
700 kW

How to enable parallel
tion goals watt meter

Nomination
flax voltage
tion, in

Way to enable consistent
wattmeter circuit

Through current transformers with a secondary winding on the 5A

Rated current, A

1500
2000
3000
4000
5000
6000

Maximum value measured in kW

megawatts
directly
127
300 kW
400 kW
600 kW
800 kW
1 megawatts
1.2 megawatts
220
600 kW
800 kW
1.2 kW
1.5 kW
2 megawatts
2.5 megawatts
by measuring
HYDRATED transformation
Matoro voltage from the secondary winding on the 127
380
1 kW
1.5 kW
2 kW
3 kW
3.5 megawatts
4 megawatts
 
Constructive performance
Wattmeters D341, D341/1 constructively arranged in a rectangular plastic case for flush mounting.
Dimensions of front panel - 160×160×110mm.
Measuring mechanism two-element device. Each of the elements included in the line voltage and line current. Instrument reading is proportional to the amount of power that takes into account each item separately, and thus the total power consumed in the circuit.
Calming the movable part ensures magnetic induction dampers.

Photos: D341, D341/1

D341, D341/1 wattmeter image.
D341, D341/1 wattmeter image.
D341, D341/1 front view (scale).
D341, D341/1 front view (scale).
D341, D341/1 side view (casing depth).
D341, D341/1 side view (casing depth).
D341, D341/1 rear view (connection).
D341, D341/1 rear view (connection).
D341, D341/1 overhead view.
D341, D341/1 overhead view.


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