TD1550

• Accuracy: class 0.02, class 0.05

• DC standard voltage source：10 mV～1150 V / 1550 V（option）

• DC standard current：1 mA～600 A

• DC small signal voltage source(four-line)：10 μV～4.4 V

• Optional 3 or 6 meter position DC electric energy meter and DC shunt calibration stand

• Standard electric energy pulse input/output, used to detect the working error of electric energy meter

• Auxiliary power supply is used to supply power for electronic meters for measuring DC electrical energy(type A).

• Standard second pulse measurement is used to detect the daily timing error of the electric energy meter

• Mobile measurement and control station, which can observe or control the output through the LCD touch screen

• DC shunt manual/automatic crimping device (option), used for DC shunt verification.

TD1550 is a platform device that can be used for the verification of DC electric energy meter and DC shunt. It consists of DC voltage standard source, DC current standard source, DC small signal voltage standard source, DC voltmeter (option), multi position verification platform, verification software, etc. It can verify not only conventional DC electrical measuring instruments, but also DC shunt, direct and indirect connected DC energy meters.

☆ Verification of DC  Energy Meter

• Application scenario 1: The maximum DC voltage output is 1550 V, meeting the requirements of 1.15 Un voltage test of 1 kV electric energy meter; The maximum DC current output is 600 A, meeting the requirements of 1.2 In current test of 100 A watt hour meter. With the power pulse measurement function, the test of direct connected DC energy meters.


• Application scenario 2：The instrument has 10 μ V~4.4 V four wire small signal voltage source, with 1550 V DC voltage source and electric energy pulse measurement function, can carry out relevant testing work of indirect connected DC energy meters.


• Application scenario 3：The instrument supports 600 A maximum current output option, with 1550 V DC voltage source and electric energy pulse measurement function, and can carry out relevant tests on the whole of indirect connected DC energy meters and DC shunt.


☆Verification of DC Shunt (option)

• DC high current standard source: the maximum output is 600 A, which can be used as the primary current input of the DC shunt.


• DC small signal voltmeter: support voltage input range is 10 μV~4.4 V, which can measure the secondary output voltage of the shunt


• DC shunt manual crimping device (option): manually compress the current terminal of the DC shunt and connect it with the current source to form a current loop.


• Verification and test of DC shunt (option): it can measure the resistance value and basic error of the shunt, and draw R(t) curve.


☆ Calibration of DC electrical measuring instruments

• Calibration of DC voltmeter and ammeter: the device has a built-in DC voltage standard source with an output range of 10 mV ～ 1550 V and a DC current standard source with an output range of 1 mA ～ 600 A. The voltage and current accuracy of the class 0.02 device reaches class 0.01, which is applicable to the calibration of DC voltmeter or ammeter of class 0.05 and below.


• Calibration of DC wattmeter: a virtual power standard source composed of independent DC voltage and DC current output. The accuracy of a class 0.02 device reaches class 0.02 , which is applicable to the calibration of DC power meters of class 0.1 and below.

☆ Verification of DC  Energy Meter

• Application scenario 1: The maximum DC voltage output is 1550 V, meeting the requirements of 1.15 Un voltage test of 1 kV electric energy meter; The maximum DC current output is 600 A, meeting the requirements of 1.2 In current test of 100 A watt hour meter. With the power pulse measurement function, the test of direct connected DC energy meters.


• Application scenario 2：The instrument has 10 μ V~4.4 V four wire small signal voltage source, with 1550 V DC voltage source and electric energy pulse measurement function, can carry out relevant testing work of indirect connected DC energy meters.


• Application scenario 3：The instrument supports 600 A maximum current output option, with 1550 V DC voltage source and electric energy pulse measurement function, and can carry out relevant tests on the whole of indirect connected DC energy meters and DC shunt.


☆Verification of DC Shunt (option)

• DC high current standard source: the maximum output is 600 A, which can be used as the primary current input of the DC shunt.


• DC small signal voltmeter: support voltage input range is 10 μV~4.4 V, which can measure the secondary output voltage of the shunt


• DC shunt manual crimping device (option): manually compress the current terminal of the DC shunt and connect it with the current source to form a current loop.


• Verification and test of DC shunt (option): it can measure the resistance value and basic error of the shunt, and draw R(t) curve.


☆ Calibration of DC electrical measuring instruments

• Calibration of DC voltmeter and ammeter: the device has a built-in DC voltage standard source with an output range of 10 mV ～ 1550 V and a DC current standard source with an output range of 1 mA ～ 600 A. The voltage and current accuracy of the class 0.02 device reaches class 0.01, which is applicable to the calibration of DC voltmeter or ammeter of class 0.05 and below.


• Calibration of DC wattmeter: a virtual power standard source composed of independent DC voltage and DC current output. The accuracy of a class 0.02 device reaches class 0.02 , which is applicable to the calibration of DC power meters of class 0.1 and below.

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