For all the three phase or six phase relay testers of PONOVO, one universal software can be used, the name is PowerTest software. PowerTest is a relay test software that includes different test packages, the Basic package, Protection package, Advanced package, Special package, New Modules, which packages includes different testing module, that can be used for all kinds of relay testing, and it also has the special package for more testing application, such as energy meter, etc.
Basic Package:
In the Basic package, there are different Quick Test modules, Time module, State Sequence, Ramp, Harmonic, CB Operation, Non-electricity Check, and TransPlay for playing back the comtrade file.
QuickTest (4V, 3I) :
â–4 voltage and 3 current sources available for
test relay
â–Amplitude, phase angle and frequency of
voltage and current sources can be
controlled independently
â– Test can be in manual or auto mode
QuickTest (4V,6I) :
â–4 voltage and 6 current sources available for test relay
â–Amplitude, phase angle and frequency of voltage and current sources can be
controlled independently
â– Test can be in manual or auto mode
â– This module can be used by L336i only
QuickTest (VL-L, 3I) :
â–Easy to control the phaseâ€phase voltage, 3V0 (zero sequence voltage) and 3 currents â–Amplitude, phase angle and frequency of current sources and phaseâ€phase voltage,
zero sequence voltage can be controlled
independently
â– Test can be in manual or auto mode
QuickTest (Sequence) :
â–Easy to control the sequence components (positive sequence, negative sequence and zero sequence) for voltage and current
â–Amplitude and phase angle of the sequence components of voltage and current can be
controlled independently
â– Test can be in manual or auto mode
QuickTest (Power) :
â–Easy to control the output of power,
including active power, reactive power and apparent power
â–Amplitude of active power, reactive power and apparent power can be controlled
independently
â– Test can be in manual or auto mode
QuickTest (Z, I Const) :
â– Easy to test impedance relay with constant current
â– Set the fault impedance and fault current, obtain the amplitude and phase angle of
each phase voltage and current according
to the fault type
â– Can manually or automatic search the relay operation value
QuickTest (Z, V Const) :
â–Easy to test impedance relay with constant voltage
â–Set the fault impedance and fault voltage, obtain the amplitude and phase angle of each phase voltage and current according to the fault type
â–Can manually or automatic search the relay operation value.
QuickTest (Z, Zs Const) :
â–Easy to test impedance relay with constant system impedance
â– Set the fault impedance and system
impedance, obtain the amplitude and phase angle of each phase voltage and current
according to the fault type
â–Can manually or automatic search the relay operation value
Time :
â–Time module is used to test trip delay time of protection relay
â– Various value can be set separately, such as pick up value, delay time, preâ€fault time, post†fault time, binary input/output, the voltage and current at preâ€fault and fault state, characteristic definition, etc.
State Sequence (4V, 3I) :
â– Used to define multiple continuous state sequences for special test applications, such as generate a series of states to test the tripping time and close time
â–4 voltage and 3 current sources available for each state
â–Trigger condition in each state can be set separately
State Sequence (4V, 6I) :
â– Used to define multiple continuous state sequences for special test applications, such as generate a series of states to test the tripping time and close time
â– 4 voltage and 6 current sources available for each state
â– Trigger condition in each state can be set separately
â– This module can be used by L336i only
Ramp (3I) :
â– Specially designed to realize RAMP for different test applications, such as pick up/drop off value checking, directional relay testing, maximum torque angle checking etc.
â– Both pulse ramp and linear ramp available
â– Can search the relay operation value automatically
Harmonic :
â–Can generate harmonics for all voltage and current outputs
â– Can check the 2nd /3rd / 4th /5th harmonic restraint of current differential
â– Can check the harmonic measurement of the relay up to 31st harmonic
â– Can set the harmonic for each channel separately
CB Operate :
â–Can check different types of line protection system, including over current, distance, etc.
â– Can check the whole relay system, including autoâ€reclosing and circuit breaker simulate
â– Can set different fault type
â– Can do endâ€toâ€end test with GPS control mode
Non-electricity :
â–Give tips before and after testings to have test scheme prepared well and finished well
â– Neither has any output value nor judge the binary input. It only generates a complete report for project check from appearance and safety.
Transient Playback (4V,3I) :
â–Can play back the COMTRADE format file which records 4 voltage channels and 3 current channels
â– Display the waveform and data of the imported COMTRADE file
Protection Package :
In protection package, there are more testing modules for relay’s characteristics testings, such as Distance, Differential, Directional, Time Inversed Current, Time Inversed Voltage, Frequency, Autoâ€Reclosing etc.
Distance (R-X) :
â–Can test impedance relay with Râ€X setting in different ways
â– Input impedance characteristic to Z plain
â– Associate the characteristic with relay settings
â– Select test point/ items directly on Z plain or in setting box
â– Zone verification
â– Zâ€T test
â– Edit new characteristic
Distance (Z-Phi) :
â–Can test impedance relay with Zâ€Phi setting in
different ways
â– Input impedance characteristic to Z plain
â– Associate the characteristic with relay settings
â– Select test point/ items directly on Z plain or in setting box
â– Zone verification
â– Zâ€T test
â– Edit new characteristic
Directional :
â– Can search maximum torque angle and two boundary angles (Lead and lag angles)
â– Can set angle define, V lead I or I lead V
â–Can set fault type, singe phase, phaseâ€phase or three phase fault
Auto-Reclosing :
â– Can test the reclose function
â–Realize relay automatic reclosing with checking the difference between two systems, checking the synchronization setting, reclose set time checking and automatic evaluating of testing results.
Differential (3I) :
â–Can search out the percentage restraint curve, harmonic restraint, trip time for single phase fault
â– Can search the percentage restraint curve
â– Can check 2nd harmonic restraint
â– Can check 3rd harmonic restraint
â– Can check 5th harmonic restraint
â– Can check tripping time of set points
Differential (6I) :
â–Suitable for 6 output current channels' relay tester, such as transformer, generator and bus bar etc. differential protection equipment test
■Realize the two sides 3 phase/phase†phase/single phase test between relay tester and relay equipment.
â– Can search the percentage restraint curve, harmonic restraint, trip time
â– This module can be used by L336i only
Time Inversed Current :
â–Realize the directional overâ€current test and nonâ€directional overâ€current test
â– Include testing positive sequence, negative sequence and zero sequence inverseâ€time overâ€current, definiteâ€time overâ€current, overâ€heat protection.
â– Can import the IEC and IEEE standard curve or user defined curve
Time Inversed Voltage :
â– Can test time inversed over voltage and time inverse under voltage relay
â– Include testing directional, time definite and with time delay voltage relay
â– Can simulate three phase, phaseâ€earth fault, and phaseâ€phase fault
Frequency Relay :
â– Can test frequency protection relay, such as over frequency, under frequency, df/dt trip, df/dt blocking
â– Including pick up frequency, trip time, df/dt setting value, voltage blocking value and
current blocking value test
Voltage Relay :
â– Can test voltage protection relay including under voltage and over voltage
â– Can test pick up voltage, trip time and dv/dt setting value
U. I. T Relay (AC) :
â– Can test AC type auxiliary/intermediate relay and AC type time relay
â– Can test AC voltage type electromagnetic relay
â– Can test AC current type electromagnetic relay
â– Can test electromagnetic time relay pickedâ€up by AC voltage
â– Can test electromagnetic time relay pickedâ€up by AC current
U. I. T Relay (DC) :
â–Can test DC type voltage relay. Auxiliary DC source Vdc is used for this test. Also DC current can be generated for some relays when it is required.
â– Can test DC type current relay. Current source is used for this test. DC voltage can be generated for some relays when it is required.
Advanced Package :
In the advanced package, the centralization testing the RX Characteristic Sweep, testing for distance relay, Advanced Differential, Advanced Transplay, Synchronization, etc.
Advanced Differential (3I) :
â– Can search the percentage restraint curve, harmonic restraint, trip time for single phase fault
â– Can automatic to calculate the matching factor via the transformer parameter and CT/PT parameter
â– Only check single phase fault
Advanced Differential (6I) :
â–Can search the percentage restraint curve, harmonic restraint, trip time
â– Can automatic to calculate the matching factor via the transformer parameter and CT/PT parameter
â– Can test single phase, phaseâ€phase,threeâ€phase fault
â– This module can be used by L336i only
Advanced TransPlay(4V,3I) :
â– Can play back the COMTRADE format file, including CFG, which describe signal names, sampling frequencies, etc. and DAT which contains the sampling values for each channel.
â– Can edit the COMTRADE data
RX Characteristic Sweep :
â– Can search the characteristic boundary of the impedance relay
â– Can find the boundary at different angles
Synchronizer :
â– Can check synchronizing relay
â– Can check voltage difference
â– Can check frequency difference
â– Can check leading time and leading angle
■Can check pulse width for frequency adjustment PowerTest †Relay Test Set Software
â– Can check pulse width for voltage adjustment
â– Can check autoâ€adjusting function with both voltage and frequency varying
Special Package :
In the special package, there are energy meter module, power swing simulation module and Transducer module can be used by L336i or L336iâ€E.
Energy Meter :
â– Can check the functionality and accuracy of energy meter with or without optional accessory PACB108
â– 1â€phase or 3â€phase energy meters can be checked
â– Active power meter, reactive power meter, and apparent power meter can be checked
Power Swing Simulation :
â–Can really simulate the oscillations in power flow reference the power parameter
â– Can simulate Outâ€Ofâ€Step and Stable swing
â– Can simulate increase and decrease swing
â– Can be a tool for relay test engineer to observe the relay behavior during dynamic power swing process.
Transducer :
â– Can check accuracy of transducer
â– This module can be used by L336iâ€E only
New Modules Package :
In the New Modules package, there are modules loss of excitation, QuickTest(harmonic) and Transply(6V, 6I) applied for L336i or L336iâ€E.
Loss of excitation :
â–Can search for two different excitation loss characteristics
â– During the test process a series of shots will be generated to search out the boundary along this shot line. Then next shot at a different angle will be generated. In this way we can then find out the boundary at different angles.
QuickTest (Harmonic) :
â– Can automatically and manually superposition harmonics with userâ€defined frequency
â– The fundamental and harmonic of voltage and current sources can be controlled independently
Transplay (6V, 6I) :
â– Can play back the COMTRADE format file which records 4 voltage channels and 6 current channels
â– Display the waveform and data of the imported COMTRADE file
â– This module can be used by L336i only
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