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전기 안전 분석기
전기 안전 분석기
전기 안전 분석기 Model 19032/19032-p
· ACWV/DCWV/IR/GB/LC five instruments in one
· Function test up to 20A · Programmable voltage output and limit value
· OSC open/short check · Flashover detection
· Human protection circuit
· Multi-scan device support dynamic leakage current test
· Standard RS232 interface · Optional GPIB interface
· Large LCD panel · Front panel lockout function
· Support PC software
· CE certification Chroma
19032-P
· 500VA output
· AC 100mA output
· Ground bond up to 40A
· Floating output, compliance with EN50191
· USB interface, compatible with USB TMC
· GFI human body protection circuit
· CE certification
· 제조사 : Chroma
· 원산지 : 대만
· 모델명 : 전기 안전 분석기 Model 19032/19032-p
제품 상세 정보
- Lab/testing equipment
- EMI FILTER
- Electric Vehicle
- Solar、PV Inverter
TwinportTM Hipot & Ground Bond Test Functions
USA Patent No. US6504381
The 19032 electrical safety tester has Twinport™ Technology. This patent and unique feature allows both hipot and ground bond to be tested simultaneously. This is idea for production test, as it allows test time be reduced by 50%.
Flashover Detection
The 19032 has Flashover Detection, as other Chroma test instruments. Flashover is electricity transient or non-sequential discharge generated by the inner or surface of insulation components, which causes DUT's to lose the original insulation feature. Electrically generated carbonation of conductive material can damage the product. Test voltages or shift rate of leakage current is required. Flashover cannot be detected by a leakage current test, which makes the Flashover Detection a valuable tool in High Voltage testing.
▲ Normal Leakage Current Waveform
▲ Leakage Current Waveform when flashover occurred
Open/Short Check (OSC)
Patent No. 254135
The OSC function is used to check if the connection is open (bad contact) or short (DUT short) during the test procedure. When a circuit is open during EST testing, bad product can pass as good product. When a short occurs during testing, proper screening can reduce the damage on the DUT.
DUT's have capacitive loads (Cx) from tens of pF to several uF, in a normal state. A micro capacitance will occur on an open circuit interface once the connection is interrupted (as Cc in figure 2). In general, the capacitance is lower than 10pF; thus the total capacitance is lower than normal product. The capacitance is far higher than normal when the DUT is short or close to a short. This allows users to judge the short issue by using high/low limit values of capacitance change.
▲ 圖1：Normal Connection
▲ 圖2：Connection Open
▲ 圖3：Connection Short
Capability of Controlling Chroma AC Source
Manufactures apply Chroma's AC source as a power supply to increase the input voltage stability for dynamic leakage current test. The 19032 uses RS232 interface to control the AC source and allows convenience in running the leakage current test. (Link)
Support Touch Current/Leakage Current Test
The current brimmed after flow through insulation resistance, is called Leakage Current. When the leakage current goes through the human body, the current flows to Earth via the human body. The leakage current is testing under an operating state. The human body RC network will be added to leakage current in real conditions.
The leakage current has different testing modes and standards in accordance with the different safety test and test points. The most common test are Earth Leakage Current, Patient Leakage Current and Patient Slave Leakage Current.
The 19032 is used with different dynamic leakage current modules and human body simulation, equivalent circuit for the requirements of various safety modules. It can apply to Electrical Safety Testing for Household Appliances, Video Product, Medical Equipment and etc.
GFI Human Protection
The ultimate purpose of safety testing is to protect users for electrical hazard. The 19032-P has a GFI function to protect the operator. The GFI function can cut-off the power output immediately, while human body is experiencing electric shock. The GFI function detects the current from the Earth (operator) and LOW terminal (device). The voltage output will be cut-off, if the current is over 0.5mA.
Floating Circuit Function
To allow for operator safety, Chroma invented the Floating Circuit, which is based on leading technology. With Floating status, the grounding leakage current will not exceed 3.5mA, no matter what the withstand voltage is. This complies with EN50191 for outputting to ground terminal within current limit and for protecting the operator from electric shock.
500VA Hipot Test
The High Limit of Hipot test currently ranges from 5 -10mA. However, there are other DUT's such as Safety Integrated Analyzer of EMI Filter or large motors requiring a large amount of power. The 19032-P enhances the power of the 19032 to equip the capabilities of outputting and measuring AC 100mA/DC 25mA.
This is used to integrate the high charge current for other safety test, as any integrated analyzer for use with high leakage current or large-sized electrical safety equipment. This maximizes the efficiency of the production line and quality assurance.
The design of the 500VA complies with the requirement of IEC/UL output power to add the selection function of "no protection for trip circuit under short current 200mA and 100mA".
Safety Test of Information Technology Product (IEC 60950)
Information technology is a big part of our daily life. Desktop, notebook, LCD monitor, UPS, printer and projector are the products that we use in our everyday lives. To ensure proper safety, all products should have electrical safety test preformed. The 19032 offers all functions of safety test and Normal/Reverse as well as Single Fault switch function (LC Test) to increase manufacturing efficiency.
The output floating of Telecommunication Network in IEC 60950 to perform dynamic leakage current test is required. The equivalent stray capacitance will also be generated on an isolation transformer, even if it is a floating circuit. The stray capacitance results in leakage current and electric shock to the users. The 19032, along with the 6000-05/07/08 leakage current scanner, have P1/P2 measurement function which is able to measure dynamic leakage current on output terminals. It is the best solution for testing information technology products.
Main Test Item
☑ Open Short Check
☑ Ground Bond
☑ AC/DC Hipot Test
☑ Earth Leakage Current Test
☑ Output Leakage Current Test
Lighting Industry and Led Related Electrical Safety Test (IEC61347-1)
LED in the lighting industry is widespread and are being used in a variety of products. Each LED and power product needs to be tested for withstand voltage, insulation, grounding resistance and leakage current , for protection from personnel electric shock.
| Test Item | Test Condition | |
|---|---|---|
| Leakage Current Test | IEC 60990 Measure network Figure4 Configuration Figure 6 | |
| Withstanding Voltage Test | Working voltage＜DC42V | WV Test Voltage 500V |
| Working voltage≧DC42V | WV Test Voltage (2U+1000)V | |
| Ground Bonding Test | Current from AC source of 25A passed for 1min between earthing terminal and each of the accessible metal parts(IEC 61347-1) | |
Power Supplies (SMPS), Adapter and Charger Safety Testing
Power supplies of electronic products, including SMPS, Adapter and chargers, need to preform electrical safety test. According to various power design methods and test conditions, the 19032 offers programmable edit and solution, allowing the operator to complete all test at one time.
A number of power products designs have the insulation capability of input terminal (Primary) to output terminal (Secondary) required to protect the damage inside the component. Thus, the output terminal of Floating needs to perform Hipot test. The 19032 provides an isolation test point with high voltage which allow you not to change the fixture or cable manually, but perform P-S Hipot test directly after P-G Hipot test.
If there is danger in making contact with the output terminal (Secondary), dynamic leakage current test also need to be performed.
| Test Item / Power supply sources | Open & Short (OSC) | Ground Bonding | Withstanding voltage from primary to Ground | Withstanding voltage from primary to Secondary | Leakage Current |
|---|---|---|---|---|---|
| Three-wire power supply class 1 (Secdonary Floating) | V | V | V | V | V |
| Three-wire power supply class 1 | V | V | V | - | V |
| Two-wire power supply class 2 | V | - | - | V | V |
▲ The Chroma 19032 with 4HV/4GC Scanner
Safety Test of Video Product (IEC 60065)
Video products include DVD recorders, LCD's, TV's, audio amplifiers, stereos and etc. These products have mass power output with separate safety standards. The main circuit design of mass power is a signal output terminal, not to mention an increase in temperature and heat dissipation of electronic component. Open voltage of some video products are over 35Vac peak or 60Vdc peak; this allows for U1 dynamic leakage current test as required. A U1 measurement circuit is added to the 19032 and P1/P2 measurement point is provided to comply with the requirement of safety standard test.
Main Test Item
☑ Open Short Check
☑ Ground Bond
☑ AC/DC Hipot Test
☑ Earth Leakage Current Test
☑ Output Leakage Current Test
Safety Test of Household Appliance (IEC 60335)
Household appliances consist of ovens, refrigerators, televisions, juicers and coffee machines that may come in contact with a person. To ensure the safety of users, all products should preform electrical safety test. Except for the basic hipot test, dynamic leakage current has various test regulations by different ground modes and operation methods. The regulations are as listed in the table below.
Main Test Item
☑ Open Short Check
☑ Ground Bond
☑ AC/DC Hipot Test
☑ Earth Leakage Current Test
| Class II Appliances | 0.25mA |
| Class 0, Class 01 and Class III appliances | 0.5mA |
| Protable Class appliances | 0.75mA |
| Stationary Class Moto-Operated Appliances | 3.5mA |
| Stationary Class Heating Appliances | 0.75mA or 0.75mA per kW rated power input of the appliances with a maximum of 5 mA, whichever is higher |
Safety Test of Medical Equipment (IEC 60601)
The 19032 + 6000-08 is a solution for electrical safety and function test of medical equipment. The safety standard of medical equipment is very strict. Since the medical equipment comes in contact with the patient and hospital personnel, the instrument preforms various electrical safety test. The leakage current test has become one of the most important test in preforming electrical safety test.
The safety standard of medical equipment has various types of leakage current test. Also, normal/reverse/single fault normal/single fault reverse four powers and earth switch, make the safety test difficult and complex. The basic measuring circuit for the enclosure leakage current is as in the figure. It shows here measurement Type BF and CF is a special requirement for medical equipment. DC leakage current should be isolated separately and limited within 50uA limited, which is mentioned in the medical safety standard. This function has already been added to the 6000-08 LC scanner.
The Chroma 19032 + 6000-08 offer programmable editing and software support. This allows you to test medical products without missing a procedure, as it saves the test data directly, providing the best test solution.
Main Test Item
☑ Open Short Check
☑ Ground Bond
☑ AC/DC Hipot Test
☑ Earth Leakage Current Test
☑ Enclosure LC
☑ Patient LC
☑ Patient Auxiliary LC
▲ Refer to UL 60601-1 fig. 18 Measuring circuit for the Enclosure Leakage Current
Electric Vehicle Safety Test (IEC 61851)
The Automotive industry has switch focus from internal combustion engine power to electric power. Because the voltage of electric vehicle will be a maximum of up to 600V when in operation, it is a safety issue. To avoid electrical injury, the Chroma 19032 is the best solution for electrical safety test of wire and connectors of electrical vehicles, adapters, batteries and the charging system.
Main Test Item
☑ Withstand Voltage Test: Various insulation terminals, primary and uncharged metal, withstand voltage between primary and secondary.
☑ Leakage Current: All metallic parts can be touched on the system reguired to test earth leakage current during dynamic operation.
☑ Ground Test: Ground protection connection should use 25A/60Hz current to test resistance, it cannot be higher than 100mΩ.
References: IEC62196-1、IEC61815、UL2594、UL2202、UL2251
Leakage Current Scanner
Different safety standards have various leakage current requirements which include test method and max. current output. Chroma 19032/19032-P is able to combine different scanners for safety needs. As the table list below.
Optional Fixtures
Chroma provides related optional test optional fixtures for different test requirements.
• Isolation Transformer: The isolation transformer is an auxiliary and the DUT floating is connected while performing leakage current test. The above are described in the safety standard.
• Dummy Load: The main function of the fixture is to confirm the normality of the instrument before daily power on.
• Bar-code Scanner: It can connect with 19032/19032-P directly.
• Current Transformer: It is able to rise ground bond test to 40A or 60A. (Model 19032 only).
• Universal Corded Product Adapter: Using this adapter can perform test directly for various types of plug in different countries.
EST Software
EST software can control Chroma 19032/19032-P to perform electrical safety integrated test. Having EST software, you can save the test procedure and data directly as well as converting them to EXCEL file for the convenience of management and statistical analysis.
• Program edit and GO/NG control
• Data bank