Payment & Shipping Terms:
|Weight:||18 Kg||Dimensions(W X D X H):||468×375×164(mm)|
|IEC61850 numerical IEDs relay & merge unit|
|Distance protection relay||21|
|Synchronising or synchronism-check relays||25|
|Directional Power relays||32|
|Undercurrent or underpower relays||37|
|Negative sequence overcurrent relays||46|
|Overcurrent/ground fault relays||50|
|Inverse time overcurrent/ground fault relays||51|
|Power factor relays||55|
|Voltage or current balance relays||60|
|Directional overcurrent relays||67|
|Directional ground fault relays||67N|
|DC overcurrent relays||76|
|Phase-angle measuring or out-of-step protection relays||78|
|Automatic reclosing devices||79|
|Motor overload protection relays||86|
|Differential protection relays||87|
|Directional voltage relays||91|
|Voltage and power directional relays||92|
|Voltage regulating relays|
|Overimpedance relays, Z>|
|Underimpedance relays, Z|
Energy meter calibration is specialized in testing module of energy meter for electronics and electromechanics, once the parameters of specified energy meter has been injected to this module, these data can be saved for further usage, User can use the basic parameter interface of energy meter module to default import all the saved energy meter settings in the box of the module, and user could check, edit, delete and add the objectives of energy meter. On the part of viewing, editing, deleting and adding, click to next, new adding and editing will process automatically.
Energy meter calibration software interface
Fig Testing viewing
Rating current: The rating current of energy meter
Pulse constant (Pulse/KWh): Be tested pulse constant of energy meter.
Warm-up time: Be tested starting up preconditioning time of energy meter.
Startup time: Energy time start-up time.
Ambient temperature: the ambient temperature under current testing
Relative humidity: The relative humidity under current testing
Fig Testing view
Meter type: select 4-wire, 3-wire, single phase energy meter, active power, reactive power, apparent power
Meter constant: Energy meter pulse constant
Direction: There are energy pulsing signal output and energy pulsing signal input from energy meter. Outer port is energy pulse signal output, inner port is energy pulsing signal input. If when tested pulsing signal energy meter by device, it shall be set as inner port.
Pulsing type: Energy pulsing signal type, can be selected rising and falling.
CT/PT Ratio: The setting of transformer ratio
Certified: Signature of tester
Settling time: The stable output time of energy meter
Pulses/Rotation: the each circle relative pulsing number of energy meter
Class: Energy meter grade
Fig Testing connection
Energy pulsing input testing line use and supply by manufacturer standard testing line
2) Testing procedure
To set each parameter of energy meter in the software according to chapter 6.5.2 instruction, add test point, start to test, test device will calculate the outputted energy value to energy meter through real output voltage, current, phase and output time. After energy meter receive test device output energy simultaneously, it will output corresponding energy pulsing signal to test device, test device will output energy value and receive energy pulsing signal to prepare, then calculate present testing point error in order to determine the test result.