110kV Class Power Transformers
General
The110kV class low loss transformers are developed by Huapengour workshop through years of service experience and careful analysis of the advantages and disadvantages of the transformers of different manufacturers, both domestic and abroad, and are featured by low loss, low partial discharge, low noise, high strength against short circuit, and high reliability in service. Its outstanding performance has won high reputation throughout China, and the world, and are highly appreciated by experts of the circle. Transformers can be made with welded tank cover and/or flange , Thus obviated from the necessity of lifting out the active part for inspection after arrival on site.
Partial discharge level:
apparent discharge < 80pC at 1.5 times rated voltage.
Noise level :
below 58 dB for transformers 63MVA and below with AN cooling
Losses:
no-load loss 30% lower than specified by GB/T 6451-1995
Reliability:
no damage or oil leakage have been found in transformers in service up to the present
Short-circuit withstand capability:
Our SZ9-31500/110,SSZ-50000/110 transformers successfully passed short-circuit test in National Transformer Quality Inspecting and Testing Center, and in CESI Laboratory of Italy.
Winding
1. Partially interleaved continuous winding is used for HV winding to improve its behavior under lightning impulse, because of its more uniform voltage distribution.
2. All the spacers and vertical strips are rounded at corners, in order to obtain a more reliable insulation structure.
3. Zig-Zag directional flow is provided inside the windings, so that all parts of the windings are better cooled, resulting in lower winding temperature rise, and specifically lower hot-spot temperature, thus the insulation life of the transformer is prolonged.
4. Separate regulating windings are provided for both the 110kV high voltage and the 35kV medium voltage side, so that a more balanced ampere-turn is obtained in spite of tap-changing, the short-circuit withstand capability is thus promoted. Radially, the windings of a phase assembly are tight-fit, little space is left between the core and the low-voltage cylinder, and between the windings. All the vertical strips and cylinders are thoroughly dried before assembly, so that a tight phase assembly can be finally obtained.
Core
1. High permeability grain oriented high quality cold-rolled sheets are used for the fabrication of core. The sheets are cut on automatic cutting line made by Georg Co. of Germany or Soenen Co. of Belgium. The burrs are controlled within 0.02mm.
2. The core is stacked without stacking the upper yoke, the upper yoke sheets are placed into position after the winding blocks are mounted on the core. The joints of the core sheets are mitred 45fpjoint with step-lap. The stacked core is pressed under even pressure and the edge of the sheets are painted with epoxy resin, so that a straight, robust, integral structure is obtained, helping to reduce core loss and noise.
3. Wooden strips are driven into the space between core and LV cylinder. The yoke is kept tightened by epoxy-resin impregnated glass tape, while the lower yoke is pressed against the wall of the lower tank through threaded bolts. The active part of the transformer is in addition kept in position by devices at three places between the upper yoke and the tank cover in such a way that the active part cannot be displaced during transportation.
Sc(b)h15 amorphous alloy dry-type distribution transformer
Transformer can be installed indoors deep into the load center, so as to adapt to the need of high-density load of big modern cities. With the no-load loss reducing by 75% and the load loss reducing by 15% than that of gb/t10228 table 4 group i, the amorphous alloy distribution transformer is the state of the art energy efficient dry type transformer
-SMD IFT coils for TV receivers and AM and FM radios
-Variable inductor and coils with wide range of inductance
-Designed for application in different types of circuits
-IFT coils with internal capacitors
-SMD IFT coils for radio receivers and AM and FM radios
-IFT variable coils for wireless communication system and remotecontrol toy/equipment
-IFT adjustable coils with wide range of inductance
-Designed for application in different types of circuits
-IFT coils with internal capacitors
-EC, EE.EI and PQ type high frequency switch transformer EP type magnet shielding switch transformer
-RM type communication filter, aux power transformer
-ET, FT type linearity G (jar shape) switch transformer
-DR (I) type transformer T (ring) iron power core, DC filter inductorRM series: RM-4, 5, 6, 8, 10, 12, 14
ISO UL Certification,
Welcome Custom
Common mode choke
Electric choke coil
Two ring core spider web coil
Features:
Vertical base-mounted
Low cost and high current
Closed magnetic circuit for lowest EMI
Original manufacturer
ISO 9001:2008
With UL qualification
Keeps 4â?° disqualification rate
3-5pcs free samples
Short lead time
100% test before shipping
International standard specification
Professional packing
300K per month
Conform to CE, RoHS, FCC
OEM/ODM accepted
Applications:
Copying machine, display monitor, ADSL modem, gaming machine, color TV, video camera, air conditioner, refrigerator, laundry machine, microwave oven and car electronics
Ef type high frequency transformer
-smd ift coils for tv receivers and am and fm radios
-variable inductor and coils with wide range of inductance
-designed for application in different types of circuits
-ift coils with internal capacitors
-smd ift coils for radio receivers and am and fm radios
-ift variable coils for wireless communication system and remotecontrol toy/equipment
-ift adjustable coils with wide range of inductance
-designed for application in different types of circuits
-ift coils with internal capacitors
-ec, ee.Ei and pq type high frequency switch transformer ep type magnet shielding switch transformer
-rm type communication filter, aux power transformer
-et, ft type linearity g (jar shape) switch transformer
-dr (i) type transformer t (ring) iron power core, dc filter inductorrm series: rm-4, 5, 6, 8, 10, 12, 14
Iso ul certification,
Welcome custom
Company with ul qualification
Original manufacturer
Iso 9001:2008
3-5pcs free samples
Short lead time
100% test before shipping
International standard specification
Professional packing
300k per month
Conform to ce, rohs, fcc
Oem/odm accepted
Features
.High initial permeability and high AL value
.High effective insertion loss and excellent noise suppression
.Wide frequency range,large adjustable range for permeability from 20000-160000
.Low core loss, small choke size for volume and wieght with epoxy coating
Application:
.Switched-mode Power supplies
.EMI common mode filter
Features:
DC current immunity composite cores is combined with amorphous and nanocrystalline cores together
Magnetic features:
. Strong anti-DC-capacity
. Precision, the scope of application of 0.5-0.1 grade and applicable Current range 1.5-200A
. Good temperature stability
Applications:
.DC current immunity transformers
.Metering transformer in electronic power system
Features:
The adjustable range of permeability
Excellent frequency characteristics
High saturation magnetic induction strength
Lower eddy current losses
Excellent temperature stability
Applications:
Switching Mode Power Supply
UPS Uninterrupted power supply
Pulse welding equipment
Power converter
Strange dc current immunity applicable current range (1.5a-200a)
High linearity, high accuracy class, applicable transformer accuracy range 0.5-0.1 class
Good temperature stability
Core size saving by volume and weight
Applications:
.DC current immunity transformers in electronic energy meter/watt-hour meter
.Metering transformer in electronic power system
Ratio 1000: 1 or 2000:1 (customized)
Accuracy class 0.2%, 0.5%, 1%
Primary current 0 - 3000A AC
Secondary current 0 - 5A AC (customized)
Max. Cont. Input current 3600A
Over voltage category CAT III 600V
Output signal (AC current) 500mA,1A,2A,5A AC at nominal input current
Output signal (AC voltage) 333mV, 500mV, 1V, 5V AC at nominal input current
Frequency range 40Hz-2000Hz
Dielectric strength 3KV 50Hz/60Hz at 1 minute
Temperature range -20C to +55C
Output 2.5 meter cable with D01 connector
Max. voltage not insulated conductors 600 V
Standard EN 61010-1, EN 61010-2-032, IEC60044-1
Installation Clamp type
Output mode Lead output (2.5m)
Mechanical parameters
Dimensions (L x W x H)(mm) 180 x 319 x 35
Weight (g) 1100
Holding wire diameter (mm) 125
Max. jaw opening (mm) 125
Color Black
Material PC+ABS+Polycarbonate, UL94 V0
Ratio 1000: 1 or 2000:1 (customized)
Accuracy class 0.2%, 0.5%, 1%
Primary current 0 - 3000A AC
Secondary current 0 - 5A AC (customized)
Max. Cont. Input current 3600A
Over voltage category CAT III 600 V
Output signal (AC current) 500mA,1A,5A AC at nominal input current
Output signal (AC voltage) 333mV,500mV,1V,5V AC at nominal input current
Frequency range 40Hz-2000Hz
Dielectric strength 3KV 50Hz/60Hz at 1 minute
Temperature range -20C to +55C
Output 2.5 meter cable with D01 connector
Max. voltage not insulated conductors 600 V
Standard EN 61010-1, EN 61010-2-032, IEC60044-1
Installation Clamp type
Output mode Lead output(2.5m)
Mechanical parameters
Dimensions (L x W x H) (mm) 116 x 327 x 35
Weight (g) 1200
Holding wire diameter (mm) 120 x 50
Max. jaw opening (mm) 50
Jaw Color White
Material PC+ABS+Polycarbonate, UL94 V0
FEATURES
Most cost-effective
Faster installation
Safe and easy installations
High accuracy 0.5
Holding wire diameter: �?16mm
Measurement range of 1mA to 200A AC
Low phase shift for power measurement
Output model: Lead output(2.5m)
Isolated plastic case recognized according to UL94-V0
Small-size, compact size, light-weight
Over-Voltage protection circuit is installed.
CE, UL / EN 61010 - 1 certified
PARAMETERS
Technical parameters
Standards IEC/EN60044-1 & IEC61010-1 & IEC61869-2&ANSI C57.13
Ratio 1000: 1 or 2000:1 , customized
Nominal input current Primary current 20A/30A/40A/50A/60A/80A/100A/150A/200A
Overload withstand 1.2 times rated current continuously
Accuracy 0.2%, 0.5 %, 1%
System Voltage 720V(0.72kV)
Output signal 10mA-200mA AC optional
333mV AC or 100mV-2V optional
Frequency range 40 Hz-500 Hz
Dielectric strength 3KV 50Hz/60Hz at 1 minute
Output Standard 2.5 meter cable
Protection Level 3.0V0-P
Installation Category CAT or CAT 600VAC
Max. jaw opening 16 mm
Mechanical parameters
Dimensions (WDH) (mm) 38mm 55mm 18mm
Weight(g) 60
Operating conditions
Operating temperature -25C to +55C
Relative Humidity 0-85% non-condensing
Altitude
