- Energy Meter Field Calibrator
-
Transformer Test Equipment
- Transformer Test Bench
- Turns Ratio Tester
- DC Resistance Tester
- Transformer Tan Delta Tester
- Sweep Frequency Response Analyzer
- Partial Discharge Tester
- CT PT Analyzer
- Transformer On-Load Tap-Changer Tester
- Short-Circuit Impedance And No-load Integrated Tester
- Winding Resistance And Turns Ratio Integrated Tester
- Transformer Capacitance And Inductance Tester
- Transformer Capacity And Characteristic Tester
- Lightning Arrester Tester
- Short-Circuit Impedance Tester
- Transformer Oil Test Equipment
- SF6 Gas Analyzer
- Secondary Injection Relay Test Set
- Resistance Tester
- Power Quality Analyzer
- HV Switch Tester
- High Voltage Test Equipment
- Cable Fault Locator
- Battery Tester
0102030405
Huazheng HZJB-1700 Portable Handheld Three-phase Relay Protection Tester
I. Test Function
1.Manual Test: The manual test can output three AC voltages and three AC currents. The amplitude, phase, frequency, and sequence components of the AC quantities can be manually controlled with step size adjustments.
2.State Sequence Test: This test can evaluate action times and simulate multiple failure states. Up to five states can be set. It can simulate re-closing acceleration and can also be combined with the company’s WeChat-controlled analog circuit breaker for backup self-firing tests.
3.Low-Cycle Load Shedding Test: The unit can perform fixed-point tests for low-cycle load shedding, including action values, action times, slip lock values, voltage lock values, and current lock values.
4.Concurrent Test: The unit can test the relevant indicators of the concurrently tested device.
5.Harmonic Test: The unit can be used to test second harmonic inrush current blocking for transformer differential protection.
6.Cross-Sampling Test: This unit is primarily used to measure the sampling accuracy of AC sampling devices.
7.Remote Test: The unit can quickly open two pairs of nodes, with adjustable intermediate interval times and a minimum resolution of 1 ms.
8.Millisecond Meter: The unit can cooperate with the system to perform open quantity and flip timing tasks.
II.The specific functions are described as follows
| Manual test functions | Can arbitrarily set the AC amount of various voltages, current amplitude, phase, and set various fault types of parameters |
| Test the electrical performance of relays and protection with AC voltage (including phase voltage, line voltage, zero sequence voltage, positive sequence voltage, negative sequence voltage), AC current (including phase current, line current,) amplitude, phase, frequency, impedance and other variables. | |
| The step size can be manually controlled, and the step size can be changed by any setting variable | |
| Changes in output can be controlled | |
| Monitor changes in the input volume | |
| Action time can be tested | |
| Multiple continuous state tests | Provides a variety of state sequence settings |
| Provide a variety of time control, input control, manual trigger for state switching | |
| Can set various types of faults, including single grounding, two-grounding, interphase short circuit, three-phase short circuit. Fault type Instantaneous fault, permanent fault, transformational fault, and can control the fault transition time | |
| Can provide constant current, constant impedance and other test methods | |
| It can simulate the opening and closing time of the short-circuit device | |
| Can provide a separate voltage output as zero sequence voltage or line extraction voltage As zero sequence voltage can be set to ±3U0 or ±3√3U0; The amplitude and phase of the voltage can be set at will when the line extraction voltage is tested | |
| Can check the opening, opening and logical relationship of the action behavior of relays, protection and safety automatic devices | |
| The amplitude and phase of voltage and current can be set arbitrarily | |
| Can set the status parameters of various faults | |
| Can control each switching quantity separately | |
|
Dedicated test function |
Low cycle load shedding |
| Concurrent test | |
| Harmonic test | |
| AC sampling test | |
| Millisecond timing function | |
| Remote test |
III.Panel Introduction
HZJB-1700 Product Photo
Keys description:
Run/Stop: Start test/stop test
Back delete key: When the cursor is in the current or voltage position, press the back delete key to move the cursor left or right.
▲▼：Move the cursor to change settings
+-：Matching variables set increasing or decreasing values.
Fn：Special function key, click to change the variable selection.
Fn+1：Adjust the opening volume node 1 to carry out the action of close and disconnect.
Fn+2：Adjust the opening volume node 2 to carry out the action of close and disconnect.
3：Key trigger function in status sequence
Fn+4：Initial value
Fn+5：Short circuit calculation (This function is only available on HZJB-1700) Fn+6：Setting key
Fn+7：Quick constant amplitude shortcut button
Fn+8 Fn+9：Quickly set Angle positive and negative order.
ESC：Exit the experiment menu to the main menu.
“.”：Enter ". "when the cursor is on the amplitude. When the cursor is in phase, the output is“-”.
Technical Parameters
| Product Model | HZJB-1700 |
| AC voltage output | 4 channels：0-130V continuously adjustable６６V by default |
| Output precision | Accuracy：0~5V Accuracy error≤±２mV，5V～120V Accuracy error≤±0.1%±2mV；Resolution：1mV |
| Carrying capacity | ≥30VA/phase |
| Response time | Voltage 5V~130：THD%≤0.5%，The voltage rise and fall time is less than 100µ s |
| Phase | 0-360° continuously adjustable；Accuracy 0.2°；Resolution 0.1° |
| AC current output | 3 channels：0-10A |
| Output precision | Accuracy：0.2~0.5A, Error≤2mA，0.5～10A Accuracy error≤0.1%±2mA；Resolution：1mA |
| Current output time | T330 current output time calculation formula is as follows:： (Ia*Ia+Ib*Ib+Ic*Ic)*t = 600 seconds Typical current setting output time is as follows: Ia=1A, Ib =0A， Ic=0A output time is 600 seconds Ia=1A，Ib =1A，Ic=1A output time is 200 seconds Ia=5A，Ib=5A，Ic=5A output time is 90 seconds Ia=10A, Ib=10A， Ic=10A output time is 6 seconds |
| Carrying capacity | ≥20VA/phase |
| Response time | Current 0.5A~Imax：THD% ≤0.5%；The current rise and fall time is less than100µ s |
| Phase | 0-360° Continuously adjustable；Accuracy 0.2°；Resolution 0.1° |
| Output frequency | 0-650Hz，It can simulate 11 harmonics |
| Accuracy | Frequency range：10-65Hz Accuracy＜1mHz；65 Hz ~250Hz Accuracy＜10mHz |
| Opening & Closing volume | Opening volume：2 channels Isolation voltage is 500V， the null contact is compatible with 32V~250V potential, and the polarity is automatically recognized； Closing volume：Type of 2 channels closing volume: optocoupler opening, time resolution is 0.1ms. |
| Adapter | DC 16.8V 5A |
| Built-in battery & Endurance | Built-in 20 amh lithium battery; Normal use of 8 hours |
| Instrument size & Weight | Less than 2.75kg（hand-held）size：255x210x78（mm） |
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