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GY481 Three-phase precision programmable power supp
GY-HG Intelligent Transformer Calibrator
GY9201 AC and DC indicator verification device
GY4501 single-phase energy meter field calibrator
Transformer load box
GYCT standard current transformer
GY series current riser
GYPT standard voltage transformer
GY4500 Secondary Voltage Drop Tester
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Environmental conditions |
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Temperature |
－5℃～40℃ |
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Relative humidity |
<95%(25℃) |
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Altitude |
<2500m |
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Outside interference |
No strong vibration, no strong electromagnetic field |
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The technical specs during the secondary voltage drop test |
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Measuring range |
Ratio Difference |
0.001%～19.99% |
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Angular difference |
0.01'～599' |
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Resolution |
Ratio Difference |
0.00% |
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Angular difference |
0.01' |
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Instrument tolerance |
△X=±(1%×X+1%×Y±2 digit) |
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△Y=±(1%×X+1%×Y±2 digit) |
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2 digit-instrument quantization error |
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Voltage meter accuracy |
0.50% |
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Operation range |
Voltage |
(50～120)V |
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The instrument indicates the action value (prompt error) |
error |
Ratio difference greater than 20% or angular difference greater than 600 ' |
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Voltage |
voltage<2.0V |
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Dimensions (host) |
320*280*120mm3 |
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Weight (host) |
5kg |
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Dimensions (wire barrow) |
390*280*540mm3 |
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Weight (wire barrow) |
14kg |
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Product Features:
1. It can realize three-phase three-wire, three-phase four-wire and single-phase automatic measurement.
2. Use engineering plastic chassis to meet the durability and effectively protect the safety of testers and systems.
3. The secondary automatic pressure drop tester has an automatic range switching function to ensure test accuracy.
4. The use of electronic principle circuit combined with DSP technology is to make the test stable and resistant to interference.
5. After the measurement is completed, the parameters related to the load are automatically calculated, which is convenient
for customer analysis and testing.
6. A large-screen Chinese character LCD display is used, and all operations are prompted by the Chinese character menu;
the data has power-off storage and browsing functions, and can be used to transfer data online with the computer.
7. The large-capacity 7.2V11Ah lithium battery is used for power supply, which does not have any impact on the test circuit
and avoid system protection. At the same time, it is used when there is no power supply on site.
8. Automatic switching range: During the measurement process, you can switch to different positions according to the
different values of the test object, so that the measurement accuracy and the number of display digits are guaranteed.
9. The working time of this secondary voltage drop automatic tester can be up to 24 hours (the longest), and it can
be measured under the charging state.
10. A light-weight charger is attached for easy measurement, and can be measured with an external charger when
the battery power is insufficient.
11. The instrument is small in size and light in weight.
12. Very wide secondary working current / voltage range. Under the operating current of 50mA, it can distinguish the
resistance and reactance of 1mΩ, and can test the online actual load of the S-class current transformer with a secondary
rated current of 5A; at an operating voltage of 5V, it can distinguish the conductance and susceptance of 0.001mS .
Email：contact@guoyi.com.sg
Address：2 KALLANG AVENUE 08-30 CT HUB SINGAPORE 339407Hotline：0065-93262640
