Series Resonance Test Device

LHV(L) Variable Frequency Resonant Test System for 11kV/30MW Hydrogenerators

DSP-controlled resonant test system for 11kV/30MW hydrogenerators. Features 4 test modes, automatic frequency scanning, and <40kg modular design for field deployment.

US$1.00; Negotiated Price
Lead time: 90days

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Product Details

Product Tags

LHV(L) Variable Frequency Resonant Test System

For 11kV/30MW Hydrogenerator Withstand Testing

Modular Field Testing Solution

This DSP-based resonant test system revolutionizes generator testing with:

Ultra-portable 40kg max component weight
Four programmable test modes
Real-time frequency scanning with visual curve display
Complete protection suite (overvoltage/current/flashover)

Product Parameters

Technical parameters

Rated output voltage	0～50kV(AC RMS)
output frequency	45～65Hz
Resonance voltage waveform	Pure sine wave, waveform distortion rate≤1.0%
Work system	Under full power output, normally continuous work time5min
quality factor	10～40
Frequency regulation sensitivity	0.1Hz，Instability＜0.05%
Maximum test capacity	5000kVA and below
Working power supply	220V and 380V±10%，Power frequency 50Hz±5%

Serial product configuration(Scope of application(communication voltage test of voltage generator or motor at outlet voltage20kV and below, frequency: 50Hz±2Hz))

Model	Control console	reactor	Excitation transformer	Voltage divider	applicable objects
UHV(L) - 50/50	10kW/220V	50kV/1A	10kW/5kV	50kV/500pF	generator 0.07～0.13uF.10kV cable(300mm²)≤1.0km
UHV(L) - 75/50	15kW/380V	50kV/1.5A	15kW/5kV	50kV/500pF	generator 0.13～0.2uF.10kV cable(300mm²)≤1.5km
UHV(L) - 225/50	25kW/380V	50kV/1.5A Two.50kV/1.5A	25kW/5kV	50kV/500pF	generator 0.2～0.27uF.10kV cable(300mm²)≤2.5km
UHV(L) - 360/50	30kW/380V	60kV/2A Two.60kV/2A	30kW/5kV	50kV/500pF	generator 0.27～0.33uF

Capacitance of the power generator system commonly used reference table

	model	manufacturer	Rated capacitor	rated voltagekV	Phase capacitorμF
Thermal generator	T2-12-2	/	12	6.3	0.1
	TQ-25-2	/	2	6.3	0.19
	TBC-30	/	30	6.3	0.2
	TB2-30-2	/	30	6.3	0.2
	TQN-50-2	/	50	10.5	0.209
	TB-60-2	/	60	10.5	0.25
	TQN-100-2	/	100	13.8	0.234
	WT23S-083AF3	/	300	15	0.29
	TB-320-2	/	320	20	0.3
	T264/640	/	600	20	0.368
	QF-30-2	/	30	6.3	0.1
	QF-60-2	/	60	6.3	0.234
	QF-60-2	/	60	10.5	0.33
	QFS-125-2	Shanghai electrical machinery factory	125	13.8	0.08～0.12
	QFSN-200-2	Harbin electric machinery factory	200	15.75	0.19～0.21
	QFQS-200-2	Dongfang electric machinery factory	200	15.75	0.1928～0.21
	QFS-300-2	Shanghai electrical machinery factory	300	18	0.16～0.2
	QFSN-300-2	Shanghai electrical machinery factory	300	18	0.18～0.2
	QFSN-600-2	/	600	20	0.234
	ATB-2	GE	352	23	0.268
	TBB-200-2	former Soviet union	200	15.75	0.107
	TBB-500-2		500	20	0.25
	TBB-320-2	former Soviet union	320	20	0.31
	TBB-800-2		800	24	0.25
	2-105*234	Westinghouse	600	20	0.2
	50WT23E-138	ABB	600	22	0.253
synchronous compensator	TT-15-8	/	15	6.6	0.108
synchronous compensator	TT-30-6	/	30	10.5	0.2

System Architecture

Core Components:

DSP Control Unit - Digital Signal Processor platform
Variable Frequency Power Supply (30-300Hz)
Excitation Transformer - Dry-type design
Tunable Reactors - Dual-configuration
Capacitive Divider - 0.5% accuracy

Technical Innovations

Feature	Advantage	User Benefit
DSP Control Platform	Software-upgradable functionality	Future-proof investment
Bi-directional Frequency Scan	±1Hz resolution	Precise resonance tracking
Graphical LCD Interface	Real-time Q curve display	Intuitive fault diagnosis
Modular Design	40kg max unit weight	Single-person field deployment

Test Modes Comparison

Auto-Sweep Mode - Full automated frequency scan
Semi-Auto Mode - Manual resonance locking
Manual Mode - Expert parameter control
Diagnostic Mode - Partial discharge analysis

Key Specifications

Test Voltage: Up to 22kV (2× rated)
Frequency Range: 30-300Hz programmable
Accuracy: ±0.2% voltage, ±1Hz frequency
Protection: Adjustable OV/OC (1-120% range)
Data Storage: 1000 test records