HVA28 & HVA28TD datasheet
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HVA28 & HVA28TD VLF high voltage test set Datasheet The HVA28 and HVA28TD are truly compact and portable VLF test sets that determine the condition of medium voltage cables. The HVA28TD includes integrated Tan Delta diagnostics capabilities, in comparison to the HVA28 device, which can be upgraded with a TD diagnostics unit. Both test sets perform VLF and DC testing, as well as sheath testing with sheath fault location. Performance: Outstanding features considering size and weight vs. output load. Duty cycle: Operating time is not thermally limited; the test sets may be operated continuously. Safety first: Two independent discharge devices (electronic and mechanical discharging) and an integrated 12 kV transient protection system (at 50/60 Hz). Connectivity: On-site, no external PC is needed. All results can be later downoaded via USB or Bluetooth for l further investigation and easy reporting via the b2 ControlCenter. MWT: In addition, HVA28TD offers a Monitored Withstand Test, a combination of Withstand testing and Tan Delta diagnostics in compliance with the guide IEEE 400.2-2013. Output voltage Output load DHV1439 Rev00 – © b2 electronics GmbH – Subject to change without notice. YOUR BENEFITS SMALL AND LIGHTWEIGHT The HVA series offers the smallest and lightest VLF hipot test sets available. This makes them widely applicable for in-field use. DRY SYSTEM HVA test sets are constructed with nonarcing contacts and no need to change oil. This eliminates routine servicing and makes the test sets almost maintenance-free. UNLIMITED OPERATING TIME HVA generators are designed for continuous operation without any thermal limitations. IP67 A watertight and very rugged case with a protection class of IP67 makes additional transport boxes obsolete. • Pure sinusoidal output voltage (load-independent) • Sheath fault pinpointing in combination with sheath fault locator (not included) • Easily exchangeable HV test lead • Safe communication over Bluetooth • Large color display (4.3") • Programmable test sequences with a tailor-made software tool • Download reports from the device via USB flash drive

HVA28 & HVA28TD VLF high voltage test set Datasheet TECHNICAL DATA Output characteristics VLF sine wave DC VLF square wave Sheath test Voltage setting resolution AC frequency range Frequency setting resolution AC DC Sheath test trip current Sheath fault location Output voltage Output current Duty cycle 0 ... 21 kVrms / 0 ... 29 kVpeak -28 kV ... 28 kV 0 ... 28 kV 0 ... 15 kV (negative polarity) 0.1 kV 0.01 Hz ... 0.1 Hz 0.01 Hz 12 mArms max. 17 mA max. 0.1 ... 10 mA 17 mA Continuous, no thermal limitation of operating time Load diagram for Sinewave 10.0 9.0 8.0 DHV1439 Rev00 – © b2...

HVA28 & HVA28TD VLF high voltage test set Datasheet High voltage tests (continued) Manual mode Automatic test sequences (user definable) Burn on arc Trip out on arc VLF withstand testing according to IEEE 400.2 and the test standards DIN VDE 0276-620 (CENELEC HD 620 S2), DIN VDE 0276-620 (CENELEC HD 621 S1) AC and sheath testing according to IEC 60502-2 / IEC 60229 Test modes Arc management modes DHV1439 Rev00 – © b2 electronics GmbH – Subject to change without notice. Metering AC TrueRMS Maximum display value Resolution Accuracy Output voltage measurement range DC Maximum display value...

HVA28 & HVA28TD VLF high voltage test set Datasheet Further characteristics AC supply 100 ... 240 V, 50/60 Hz, 400 VA Backfeed protection: 12 kV at 50/60 Hz DDDTM Dual Discharge Device (integrated electronic and mechanical discharge device) Product safety Environmental conditions Data transfer Report management PC software Dimensions L x W x H Weight Operating -20 ... +55 °C temperature range Storage -25 ... +70 °C temperature range Humidity 5 ... 85%, non condensing USB type A Bluetooth Built-in memory: up to 50 reports, 50 test sequences USB flash drive: unlimited b2 ControlCenter...