HZJB-D Single Phase Protection Relay Test Kit
HZJB-D Single Phase Protection Relay Test Kit
HZJB-D single phase relay tester provides convenience for field personnel to use the power supply instrument technology for other experiments. Under the premise of simplifying the operation of this instrument, the function can perform various checks on various common relays, and the panel layout is exquisite, allowing the operator to operate easily and at a glance, thus winning the unanimous praise of the majority of users.
Product Value
Verify Protection Reliability: Regular relay calibration is mandated by grid standards (IEEE C37, IEC 60255, GB/T 7261) to ensure protection relays operate correctly within their published pickup, dropout, and timing characteristics - a misoperating protection relay can take down entire networks.
Complete Single-Phase Test Capability: With 150A AC current output, 0–300V AC/DC voltage output, auxiliary DC supply, and a built-in high-resolution stopwatch, the HZJB-D performs action time, release time, pickup, dropout, and contact state tests for virtually all single-phase relay types.
Fully Isolated & Protected Outputs: Output loops feature double overload protection with automatic short-circuit and out-of-range protection, preventing instrument damage and ensuring operator safety during field fault scenarios.
One-Box Portability: At 16 kg with a compact 320 × 260 × 230 mm footprint, the HZJB-D replaces a bench full of variable transformers, ammeters, voltmeters, timers, and auxiliary power supplies - one case to carry, one setup to connect.
Data
1. Rated input power: AC: 220V±10%·1000VA·50Hz
2. AC Output
|
Range(A) |
No-load Voltage |
Full-load Voltage |
Full-load Current |
|
0~10 |
90 |
80 |
10 |
|
0~40 |
25 |
22 |
40 |
|
0~100 |
10 |
＜8 |
150 |
|
Range(V) |
No-load Voltage |
Full-load Voltage |
Full-load Current |
|
0~250(AC) |
250 |
240 |
3 |
|
0~300(DC) |
320 |
250 |
3 |
3. DC auxiliary Output
|
Range V |
Voltage V |
Maximum current A |
|
0~110 |
120 |
0.5 |
|
110~220 |
220 |
0.5 |
4. Stop watch:
Range: 0.0000~999999S,Resolution: 0.1mS,
Accuracy: ±5
With electrical contacts and potential input, the maximum input voltage: DC 250V
FAQ
Q1: What is it used for, and which relays can it test? Pickup, dropout, time tests. Single-phase relays.
Q2: How do I measure relay action/release time? Contact to stopwatch, internal start, read time.
Q3: Stopwatch terminals? How to select current range? START red, STOP green, COM black. Set range first.
Q4: What are the built-in resistor and capacitor for? Series R for load; 10µF cap for phase-shift tests.
Q5: Safety precautions and independent verification? Ground, discharge caps, verify via ext. meter.
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