English 
KFA310 has been designed with a compact interior, similar in size to an iPad, Powered by batteries. This protection relay tester weighs only 3.7 kg and offers 4x300V and 3x20A outputs. Its maximum current can reach 50A, and the output power reaches 130VA.
Kingsine protection relay tester focuses on Maintenance and Testing of Distribution and Medium-Low Voltage Protection Devices in Non-Electrified Environments.
3. Innovative "Plug and Play" technology enable after-sales service very easy and efficient within 20 working days.
4. High precision output, can be used as a standard source.
5. Main functionsKey Points
| AC Voltage Outputs | ||
| Output Range & Power | 4×300 V ac (L-N) | 22.5 VA max each@300V |
| 21 VA max each@200V | ||
| 12.5 VA max each@100V | ||
| 7 VA max each@63.5V | ||
| 6.65 VA max each@57.7V | ||
| 1.1 VA max each@10V | ||
| Accuracy | <0.015%Rd+0.005%Rg Typ. <0.02%Rd+0.03%Rg Guar. | |
| Resolution | 0.001V | |
| DC Offset | <5mV Typ. <60mV Guar | |
| Distortion | <0.05%Typ. / <0.1% Guar. | |
| Ascends/Descent response | <100us | |
| DC Voltage Outputs | ||
| Source Channels | 4 | |
| DC voltage output range | 0~300 V (L-N) | |
| DC voltage output power | 22.5W Max | |
| DC voltage accuracy | <0.03%Rd+0.01Rg Typ. <0.04%Rd+0.06Rg Guar. | |
| Ascends/Descent response | <100us | |
| Resolution | 1mV | |
| AC current outputs | ||
| Source Channels | 3 | |
| AC current output range | 0~10A, L-N / (Can be optional as 0~20A) 0~20A, LL-N / (Can be optional as 0~40A) 0~30A, LLL-N / (Can be optional as 0~50A) | |
| AC current output power(Max) | 75VA Max for 10A L-N 130VA Max for 20A L-N/LLL-N | |
| AC current output accuracy | <0.015%Rd+0.01%Rg Typ. <0.02%Rd+0.03%Rg Guar. | |
| DC Offset | <1mA Typ. <2mA Guar | |
| Distortion | <0.05%Typ. / <0.1% Guar. | |
| Ascends/Descent response | <100us | |
| Resolution | 1mA | |
| DC current outputs | ||
| Source Channels | 1 | |
| DC current output range | 0~10A, L-N | |
| DC current output power | 138W | |
| DC current accuracy | <0.03%Rd+0.01Rg Typ. <0.04%Rd+0.06Rg Guar. | |
| Resolution | 1mA | |
| AC frequency | ||
| range sine signals | DC ~ 1000Hz, 3000Hz transient | |
| Output accuracy | ±5ppm | |
| Resolution | 0.001Hz | |
| Phase | ||
| Output range | -360°~360° | |
| 50Hz output accuracy | ±0.1° Typ. / <0.2° Guar. | |
| Resolution | 0.001° | |
| Auxiliary DC supply | ||
| Output range | 12~350V | |
| Output power | 40W max | |
| Accuracy | <1% | |
| Binary input and time accuracy | ||
| Binary input logarithm | 4 pairs | |
| Trigger mode | Dry/Wet contact | |
| Input voltage range | 0 V～300Vdc | |
| Timing accuracy | < ±1ms @ 0.001~1s， < ±0.1% @ >1s | |
| Timing resolution | 36us | |
| Max time limit | infinity | |
| Binary output (Relay Contacts) | ||
| Binary output pairs | 2 pairs（DO-1 and DO-2） | |
| Type | Potential free relay contacts,software controlled | |
| Break capacity AC | Vmax：380V（AC）/ Imax：8A/Pmax:2000VA | |
| Break capacity DC | Vmax：240V（DC）/ Imax：5A/Pmax:150W | |
| Responce time | ≤10 ms | |
| Binary output (Fast eSSR) | ||
| Binary output pairs | 2 pairs（DO-3 and DO-4） | |
| Circuit Breaker Simulate | Can be define as Open or Close status | |
| Break capacity AC | Vmax：250V（AC）/ Imax：0.5A | |
| Break capacity DC | Vmax：250V（DC）/ Imax：0.5A | |
| Responce time | <100us | |
| Contact performance | Open the dry contact output using opto-coupler relay, the on-resistance is ≤ 6Ω, and the shut-off withstand voltage is ≥DC300V | |
| Time Synchronization (Time accuracy) | ||
| GPS / BD | Yes, 5us | |
| IRIG-B | Yes, 5us | |
| Power supply | ||
| Rated power supply | 100~240Vac,1-phase | |
| Enable input voltage | 85V～265V (AC); 127V～350V(DC) | |
| Rated input frequency | 50 Hz/60 Hz | |
| Enable input frequency | 47 Hz ~ 63Hz | |
| Inbuilt Battery | ||
| Nominal volume | 28.8V - 93.6Wh, (3250mAh) | |
| Operating Temperature | Charge: 0 to 45°C (Ambient) Discharge: -20 to 60°C (Ambient) | |
| Charge time (0-80%) | 2h | |
| Charge time (0-100%) | 4h | |
| Interface port | ||
| RJ45 Ethernet | 1 port, 10/100M | |
| USB | USB3.0 x 1 | |
| Wifi | Optional | |
| Bluetooth | Optional | |
| Operation Control | ||
| Touch Screen & Host Control | Yes, 7.0" LCD | |
| Basic PC software | Optional | |
| Advance PC software | Optional | |
| Other information | ||
| Weight | 3.7kg | |
| Dimensions(W x D x H) | 288x185x95 (mm) | |
| Item | Standard | Optional |
| Current output | 3×10A | Upgrade to 3×20A |
| Wifi | - | Optional support |
| Bluetooth | - | Optional support |
| Low-Level output | - | Optional support |
| Energy Meter calibration | - | Optional support |
| Basic PC software | - | Optional support |
| Advance PC software | - | Optional support |
Low level outputs（Optional）：
| Number of outputs | 8 |
| Setting range | 0~8Vrms |
| Max. output current | Rating 2mA, 10mA transient max. |
| Accuracy | (0.01~0.8 Vrms): <0.05% Typ. / <0.1% Guar. (0.8~8 Vrms): <0.02% Typ. / <0.05% Guar. |
| Resolution | 250 μV |
| Distortion (THD+N) | < 0.05% Typ. / <0.1% Guar. |
| Connection interface | Phoenix terminal |
Energy Meter Calibration (Optional)：
| Sensor Usage | Mechanical meters / Electronic meters |
| Sensor Output | High lever:>4.5V, Low level:<0.2V |
| Pulse Input | High lever:>4.5V, Low level:<0.2V |
| Pulse Range | 500KHz pulse input Max. |
| Pulse Output | 1 Transistor output, Open-collector, 5Vdc/5mA |
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