Fully Automatic Anti-Interference Dielectric Loss Tester

Product Introduction

MOEORW-W801C1 is a professional fully automatic anti-interference dielectric loss tester dedicated to CVT, transformer and substation equipment testing. It uses variable-frequency anti-interference technology and supports multiple groups of dual-frequency output to completely filter 50Hz site interference. With intuitive wiring diagrams and Chinese-English UI, it simplifies field operation and supports forward/reverse connection and CVT self-excitation test in one machine.

The instrument uses a high-power switching power supply that outputs 50Hz/60Hz single frequency and four groups of dual frequencies (45/55Hz, 47.5/52.5Hz, 55/65Hz, 57.5/62.5Hz). It automatically matches the best test frequency to suppress power frequency interference, ensuring stable data even in complex substations. The large LCD displays real-time wiring diagrams to reduce misoperation and improve test efficiency.

Product Parameter (specification)

1	Usage conditions	-15℃ to 40℃		RH < 80%
2	Anti-interference principle	Frequency conversion method
3	power supply	AC 220V±10%		Allow generator
4	High voltage output	0.5 kV ∽ 10 kV		Every 0.1 kV
		accuracy		2%
		Maximum current		200mA
		capacity		2000VA
5	Self-excited power supply	AC 0V~50V/ 40 A		Single frequency 50.0 Hz , 60.0 Hz Arbitrarily adjustable Dual-band 45.0HZ / 55.0HZ 47.5HZ /52.5HZ 55.0HZ / 65.0HZ 57.5HZ/62.5HZ
6	resolution	tgδ: 0.001%		Cx: 0.001pF
7	accuracy	△tgδ: ±(reading * 1.0% + 0.040%)
		△Cx :±(reading * 1.0% + 1.00PF)
8	Measurement range	tgδ	Unrestricted
		Cx	15pF < Cx < 300nF
			10 kV		Cx ≤ 60 nF
			5 kV		Cx ≤ 150 nF
			1 kV		Cx ≤ 300 nF
		CVT test			Cx ≤ 300 nF
9	External dimensions (Main unit)(mm)	40cm29cm33cm
	External dimensions (Attachment) (mm)	45cm33cm15cm
1 0	Memory size	200 sets support USB flash drive data storage
1 1	Weight (main unit)	2 5.5 kg
	Weight (accessory box)	5.18kg

Product feature and application

CVT self-excitation mode: one-time wiring to measure C1 and C2 capacitance & tgδ.
Non-disconnection reverse test for 220kV CVT C11 under bus grounding.
Chinese-English bilingual menu switching for global users.
Each function page equipped with standard wiring diagram for quick connection.
Built-in overcurrent and grounding protection to secure equipment and operators.
Compact integrated structure, light weight, easy for field transportation.
Stores up to 200 test records and supports U disk data export.

Prodection details

CVT special test: self-excitation, non-disconnection reverse measurement
Power transformer, CT/PT, bushing, capacitor insulation test
Substation routine preventive test in strong electromagnetic environment
Factory incoming inspection and installation handover test
On-site test with limited space and frequent wiring changes

Company Qualifications

FAQ

1)What is the core anti-interference technology of the MOEORW-W801C1 Fully Automatic Anti-Interference Dielectric Loss Tester, and what effects does this technology achieve?

Answer: The core anti-interference technology is the frequency conversion method. By outputting single-frequency (50Hz, 60Hz) and multiple dual-frequency pure sine waves, it automatically filters out on-site 50Hz power frequency interference. Even in environments with strong electromagnetic interference, such as substations, it ensures reliable measurement data.

2)What convenient features does the MOEORW-W801C1 fully automatic anti-interference dielectric loss tester offer for CVT testing?

Answer: It features CVT self-excitation testing capability, enabling simultaneous measurement of C1 and C2 capacitance and tgδ with a single connection. It supports both separate testing (measuring C1 or C2 individually) and simultaneous testing modes. When the CVT bus is grounded, it enables 10kV reverse-connection dielectric loss measurement for C11 without disconnection via low-voltage shielding and high-voltage shielding functions. Each function interface includes corresponding wiring diagrams for ease of operation.

3)What are the critical safety requirements when using the MOEORW-W801C1 fully automatic anti-interference dielectric loss tester?

Answer: Key safety requirements include: 1. Use only on de-energized equipment; both the instrument and test equipment must be reliably grounded; 2. High-voltage testing requires at least two personnel: one operator and one supervisor; 3. After testing or instrument malfunction, turn off the power switch and wait one minute before disconnecting cables or inspecting the unit; 4. Never connect or disconnect high-voltage cables while energized; 5. Non-test personnel must stay clear of high-voltage test zones marked with barriers, warning signs, or similar indicators.

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