Electrical Safety Testing:

With user safety given top priority in recent years, several certification agencies have made safety testing mandatory for devices and electrical products that are sold world-wide. In most markets it is mandatory for a product to conform to safety standards outlined by safety and standard agencies like UL, CE, VDE, IEC, BIS and so on. At SCR ELEKTRONIKS, we offer certain standard safety test equipment and analyzers that cover the requirements of most of the manufacturers and test labs. Not only do we keep upgrading our models so that the changing demands are met, such as compatibility with other devices, software, etc. but also do we welcome custom design enquiries to incorporate additional features on demand which further broadens our zest to serve you in the best possible style! With several decade long design experience in electrical, electronic, pneumatic and PC based SCADA systems coupled with our prompt after sales service, we feel that we are an ideal company to supply Safety Test Equipment such as High Voltage Tester, Insulation Resistance Tester (Megger), Earth Bond Tester, Leakage Current Tester, Glow Wire Test Apparatus, Comparative Tracking Index Tester, Millivolt Drop Tester, Dry Arc Tester, Impulse withstand Tester and so on.

SCR ELEKTRONIKS manufactures a complete range of safety test equipment:

1. High Voltage Test Equipment: AC and DC (also known as Hipots or Di-electric strength testers)
2. Insulation Resistance Test Equipment
3. Earth Bond (Ground Resistance) Test Equipment
4. Leakage Current Test Equipment
   

High Voltage Tester (Dielectric voltage-withstand Test):

For all electrical products, high voltage test is a 100% routine test, meaning – every unit should pass high voltage test before it can be shipped. The test is carried out by applying a significantly higher than operating voltage to the device under test. In this test, the insulation of a product, stressed to a greater extent than normal operating conditions, should not break-down for the product to pass this test. In most cases, the device under test is applied 1000V + two times of its normal operating voltage. During type testing, i.e. testing during designing a product or for double-insulated product, however, much larger voltage may be applied for performing high voltage test. SCR ELEKTRONIKS has constantly upgraded its HV tester to higher voltage and leakage current levels to suit the market requirements while making continuous improvements in the existing models:
(Maximum breakdown voltage and leakage current are indicated. The leakage current indicates the maximum leakage current delivered so far)

A.C. High Voltage Tester:

1. PHVT – 3 - 3 KV/1000 mA
2. PHVT – 5 - 5 KV/1000 mA
3. PHVT – 10 - 10 KV/100mA
4. PHVT – 25 - 25 KV/2000 mA
5. PHVT – 30 - 30 KV/2000 mA
6. PHVT – 50 - 50 KV/50 mA
7. PHVT – 75 - 75 KV/100 mA
8. PHVT – 100 - 100 KV/50 mA

D.C. High Voltage Tester:

1. PHVT - 3D - 3 KV/50 mA
2. PHVT - 5D - 5 KV/50 mA
3. PHVT - 10D - 10 KV/50 mA
4. PHVT - 20D - 20 KV/10 mA
5. PHVT - 40D - 40 KV/10 mA
6. PHVT - 60D - 60 KV/10 mA
7. PHVT - 70D - 70 KV/10 mA

Salient Features of the H.V. Tester:

• Input: 240 V / 120 V
• Modes: Manual, Auto, Programmable
• Safety factors: Zero Interlock, Epoxy cast HV Transformer
• Promptly designed feedback control system to switch off the HV supply as soon as breakdown takes place
• Indigenously designed Digital Meters for Ammeter, Voltmeter, Timer
• Range of leakage current for tripping threshold up to 1000 – 2000 mA
• Prominently featuring indication lamps for indicating results of test

 Insulation Resistance Test

This tester is built to measure the total resistance of a product’s insulation by applying a voltage of 500V – 1000V. The minimum acceptable value of resistance for a product to pass an insulation resistance test is normally 2 Mega Ohms or 200 Mega Ohms. The insulation resistance test does not substitute the high voltage test. Many standards and safety agencies have specified this as a 100% routine test for all products. This test may be additionally carried out every time after a maintenance procedure or repairing.

Salient Features of the Insulation Resistance Tester:

• Supply Voltage: 230 V AC +/- 5%
• High DC supply: 500 V
• Digital Meter for Digital Readout of insulation resistance
• Range Available: 20 Meg. Ohms, 200 Meg. Ohms, 2000 Meg. Ohms
• Resolution: 0.01 / 0.1 Meg. Ohms
• Accuracy: +/- 1%
• Measuring Time: 3 sec
• Display: LCD Display

Earth Bond Test

This test is performed by measuring the resistance between the third pin (ground) and outside metal body of the product under test. The maximum acceptable value is generally 0.5 ohms although certain standards may specify 0.1 ohms. This test is generally carried out at slightly high current say 25-60A so that the ground bond circuit positively maintains safe voltages on the chassis of the product under test even at a high current before the circuit breaker as a line protection device trips. This test is essential so that the product does not cause an electric shock resulting from some insulation failure. Many standards and safety agencies have specified this as a 100% routine test for all products.

Salient Features of the Earth Bond Tester:

• Input supply 230 V +/ - 10% AC 50HZ Current source: 0 to 30 A max
• Test Voltage: 0 to 12 V
• Digital Display 3 1/2 digit for all measurable parameters (Ammeter, Voltmeter and Resistance - 0.001 Resolution for 1.999
• Ohms range) at 25 A current
• Voltage measurement: Two ranges namely 2 V, 20 V
• Current Measurement: 0 to 30 Amps
• Resistance Measurement: At 25 Amps. 0 to 1.999 Ohms
• Separate Voltage and Current terminals
  
  

Leakage Current Test (Line Leakage Test)

This test is to measure the undesirable leakage current that flows through or across the surface of the insulation or the dielectric of a capacitor. This test is generally carried out at 100% or 110% of the rated input voltage of the product under test. The maximum acceptable limit of a leakage current is generally 210 micro amperes. Previously this test was mandatory as a 100% routine test for medical devices only. We recommend this as a routine test for all electrical products. 

Salient Features of the Leakage Current Tester:

• Tripping current setting range : 0 to 1.999
• Accurately designed current measuring system
• Both live and neutral polarity test can be performed
• Reset facility after tripping

Safety Test Equipment (All in one electrical safety testing solution)

By combining two or all of the above four tests (plus performance test) in one panel, we have designed a Safety Test Panel to comply the needs of companies like Bluestar, G.E., Phillips, Bajaj Electricals, Surya Lighting, Thorn Electricals, A O Smith, Ellin and so on to test a variety of products such as a luminaire, electric geyser, domestic mixer, domestic iron, air-conditioner, refrigerator and so on. To accommodate the panel on assembly line we have included performance test in this all in one solution which can carry out all the above tests when the device under test is subjected to rated voltage. In addition to manual and automatic mode, PC based operation is possible in this panel wherein all the test parameters such as withstand voltage and leakage current (PHVT), leakage current, insulation resistance, etc. can be input from the PC software and the test can be run till the test is carried out all by itself (all tests are carried out one by one sequentially as programmed) and the results of each test are displayed on PC screen as well as the front panel. The software is customized to fit the exact requirements of the customer. The results can be recorded or sent to a remote location via email. Fixtures can be designed and provided for High Voltage testing if required. A truly all in one solution that is making inroads into the industry!

Salient Features of the Safety Test Equipment:

• Input 120 / 230 V
• Option of any one or more tests included in the safety test equipment:
  •  High Voltage Test
  • Earth Bond Test
  • Leakage Current Test
  • Insulation Resistance Test
  • Performance Test
• Rated Current, Voltage and Wattage Performance Test
• Safety testing as per UL, CE, BIS, etc.
• Digitally adjustable parameter setting such as High Voltage, Leakage Current, etc.
• Parameter limits setting for different tests
• Digital meters: 3-1/2 digit for all the tests to indicate different parameters.
• Leakage Current checked for both the polarities
• Micro-Controller based digital sequential timer to carry out tests automatically
• Lamps and Buzzer alarms for indication such as OK, Pass, Fail, etc.
•  Customized design of High Voltage fixtures for safe handling
• PC based panel interfaced with NI LabVIEW based SCADA for controlling the panel entirely from PC
• Test results can be exported to Word/Excel/html/printer or can be emailed

Product Images (Click on images to zoom):