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AC CONVERTERS
P1S, P2S and P3S |
WATT POWER CONVERTERS
P1S single-phase grid, single-system converter
P2S three-wire grid, two-wire system converter (Aron connection)
P3S four-wire grid, three-system converter |
Models: |
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P1S |
P2S |
P3S |
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- AC grid watt power
- power supply: 24V DC or 230V AC
- frequency range: from 40 to 1000Hz
- input-to-output-to-power supply isolation: 4000Vr.m.s.
- measuring range: 0 to 120% of rated input
- conversion accuracy: < 0,5%
- compact design
- designed for DIN 35 rail mounting |
The converter has been designed to convert the watt power of an
AC signal into a unified-range DC voltage or current. The converter input includes measuring transformers and voltage
dividers. These are designed to adjust the input levels for processing in an analog multiplier. The multiplier output
signal is proportional to the input instantaneous power. After smoothing out and isolation, it is fed into an output
amplifier. The output amplifier generates a DC current or voltage, which is fit for further processing and subsequent
evaluation. The current signal may also be conveyed to a larger distance even in a higher interference level environment.
Both the input and the output circuit are overload-protected.
The converter can handle a wide frequency spectrum. It can also be applied to
handling distorted waveform input signals. When measuring in a 50Hz-grid, it can process up to the twentieth harmonic
of the fundamental frequency. |
Electrical specifications: |
| - operating temperature range: |
-25...+80°C |
| - storage temperature range: |
-40...+ 80°C |
| - supply voltage: |
24V DC± 30% |
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230V ± 15%, 50 - 60Hz, max. 2VA |
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other options (80..300V DC, 60..250V AC) by arrangement |
| - protection: |
resettable thermal cut-out in primary circuit |
| - rated inputs: |
1A, 2,5A, 5A AC |
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57,7V, 100V, 110V, 220V, 230V, 380V, 400V, 500V AC |
| - voltage input current load: |
0,5mA |
| - current input power demand: |
typically 0,015VA |
| - input overload capacity: |
voltage: |
2 Unom - 1s |
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current: |
2 Inom - 1min, 20 Inom - 1s |
| - output: |
4-20mA, 0-20mA, 0-10V |
| - output current limit: |
typically 28mA (electronic cut-out) |
| - current output maximum load: |
15 / Iout (ohm) |
| - voltage output maximum load: |
10mA |
| - temperature induced error: |
< 0,02%/°C |
| - transfer function maximum error: |
< 0,5% |
| - transfer function: |
linear |
| - test voltage: |
4000Vr.m.s. |
| - output signal settling time: |
300ms |
| - hmotnost: |
240g |
| - enclosure: |
casing / terminal board: |
IP40 / IP10 |
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| Type tests: |
Standard type test:
EMC:
Safety: |
to CSN EN 60688
to CSN EN 61326-1
assessed acc. to CSN EN 61010-1 |
Converter connection variants:
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| P1S converter: |
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| Terminal description: |
1,2...input current to be measured
3,4...input voltage to be measured
5,6...output terminals (6 is +)
7,8...auxiliary AC power supply, for DC operation, 8 is + |
Dimension sketch:
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Converter capacity: P = Uf . If . cos j
Uf, If - phase voltage and current value, respectively
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| P2S converter: |
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| Terminal description: |
1,2,3,4...input of the phase current to be measured
5,6,7......input of the delta voltage to be measured
8,9.........output (9 is +)
10,11.....auxiliary AC power supply; for DC operation, 11 is + |
Dimension sketch:
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Converter capacity: P = V¯ 3 . Us . If . cos j
Us - delta voltage
If - phase current
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| P3S converter: |
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| Terminal description: |
1,2,3,4,5,6....input of the phase current to be measured
7,8,9,10........input of the phase voltage to be measured
11,12............output (12 is +)
13,14............auxiliary AC power supply; for DC operation, 14 is + |
Dimension sketch:
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Converter capacity: P = 3 . Uf . If . cos j
Uf, If - phase voltage and current values |
Ordering instructions:
Your order should include:
- converter type
- auxiliary supply voltage
- rated input voltage
- rated input current
- measuring range (power)
- output range
- quantity (No. of pieces)
Any power differing by up to ± 30% from the rated power may be entered. Front-end
current and voltage transformer turn ratio data and the required power range must me
added in this case. |
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Czech version 
Polska verze 