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outdoor current transformer
outdoor current transformer

GFLZZW3-35QOUTDOOR MULTI WINDINGS DRY TYPE 33KV CURRENT TRANSFORMER

This model GFLZZW3-35Q outdoor dry type current transformer is used in 36KV, 35KV, 33KV, 27KV, 25KV power system, for measuring and protection. It has been used in outdoor pole mounted and transmission line. This product has the characteristics of high efficiency and large capacity, and can be customized according to customer requirements.

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DESCRIPTIONFor insulation and protection, the assembly is cast in hydrophobic cycloaliphatic epoxy (HCEP) using automatic vacuum pressure. The HCEP material offers superior arc track, ozone, and ultraviolet-resistive properties while maintaining physical strength. Primary and secondary use pure electrolytic copper, both winding and core have high voltage shielding processing. The hydrophobic surface properties of HCEP ensure highly reliable performance in wet, humid, or polluted environments.
It can be used for less than 36KV distribution line, Coal mine, power plant, Rail way, factories.. . The 33kV current transformers are strictly in conformity with IEC60044, IEC 61869, ANSI/IEEE C57.13, NBR6855 etc. It has been used many substations and wind power plants.

APPLICATION

■ Rail way;

■ Coal Mine;

■ Power plant;

■ Power Meter;

■ Energy meter;

■ Power station;

■ Oil, gas company;

■ Distribution system;

■ Measuring instrument;

■ Electric Power Bureau;

■ Primary metering cabinets;

■ MV Power Quality Analyzer;

■ Substation metering and relaying;

■ Industrial and mining enterprises;

FEATURES

■ Weight: 90KG;

■ Using life: 30 years;

■ Rated voltages up to 36 kV;

■ Secondary current output 5A or 1A;

■ Tin plated copper primary terminals;

■ Multi windings post type outdoor design;

■ 36KV, 35KV, 33KV, 27KV, 25KV Outdoor;

■ Reasonable structure and robust construction;

■ Surface creepage distance more than 1300mm;

■ Material:Epoxy(HCEP) + outdoor silicone cover;

■ Rated basic insulation levels (BIL) up to 200 kV;

■ Standard & Special High Accuracy metering classes;

■ Convenient installation, suitable for installation in any location;

■ Accuracy class: 0.2S 0.2, 0.5S, 0.5, 1, 5P20, 5P10, 10P20, 10P15;

■ IEC60044-1, IEC 61869-2, GB/T 20840.1,2 & ANSI/IEEE C57.13 Standards;

PARAMETERS

Technical parameters
Standards IEC60044; IEC 61869; ANSI/IEEE C57.13, GB/T 20840.1,2
Accuracy Class 0.2s, 0.2, 0.5s, 0.5, 1, 10P10, 10P15, 5P20, 5P10
Rated Voltage 36KV, 35KV, 33KV, 27KV, 25KV
Rated primary current 20-2000A
Rated load ≤30VA
Rated frequency 50Hz or 60Hz
Rated secondary current 5A or 1A
Rated short-time thermal current 80kA, 1S
Rated dynamic current 160kA
Rated insulation level 40.5/95/200KV
Using type Outdoor
Application Measurement and Protection
Insulation class E
FS ≤10
Surface creepage distance (mm) 1300
Mechanical parameters
Material Epoxy resin+ silicone sleeve
Weight (kg) 90
Operating conditions
Operating temperature -25°C to +55°C
Daily average temp <+40°C
Storage temperature -40°C to +70°C
Altitude <3000 meters
Condition No existence of severely begrimed, erosive and radioactive gas in the air. Permission of long-term operation under rated current.

Technical data 1: two windings

Rated primary current(A) Accuracy class combination Rated secondary output(VA) Surface creepage distance
(mm)		 Weight(KG)
1S/2S 0.2(S)0.5S 0.5 5P10 5P15 5P20
10-630 0.2(S)/0.5(S)
0.2(S)/5p
0.5(S)/5p

 10 20 100 60 40 1300
90
750-2000 120 75 50

Technical data 2: three windings

Rated primary current(A) Accuracy class combination Rated secondary output(VA) Surface creepage distance
(mm)		 Weight(KG)
1s/2s/3s 0.2(s)0.5S 0.5 5P10 5P15 5P20
10-500 0.2(S)/0.2(S)/5P
0.2(S)/0.5(S)/5p
0.5(S)/0.5(S)5p 		10 20 50 30 25 1300
90
600-1000 80 50 30
1200-2000 100 60 40
100-630 0.2(S)/5p/5p
0.5(S)/5p/5p
 10 20 30 20 15
750-1000 50 30 20
1200-1600 60 30 25
2000 60 40 25

Technical data 3: four windings singls transformaiton radio

Rated primary current(A) Accuracy class combination Rated secondary output(VA) Surface creepage distance
(mm)		 Weight(KG)
1s/2s/3s/4s 0.2(s)0.5s 0.5 5P10 5P15 5P20
10-800 0.2(S)/0.2(S)/5P/5P
0.2(S)/0.5(S)/5p/5P
0.5(S)/0.5(S)5p/5P

 10 20 25 15 10 1300
90
1000 30 50 10
1200-2000 40 25 15

Technical data 4: three windings singls transformaiton radio

Rated primary current (A) Accuracy class combination Rated secondary output(VA) Surface creepage distance (mm) Weight (KG)
1s/2s/3s/4s 0.2(S)0.5s 0.5 5P10 5P15 5P20
10-15-20
 0.2(S)/0.2(S)/5P/5P
0.2(S)/0.5(S)/5p/5P
0.5(S)/0.5(S)5p/5P		 10 20 25 15 10 1300 90
15-20-30
20-30-40
30-40-50
40-50-75
50-75-100
75-100-150
100-150-200
150-200-300
200-300-400
300-400-500
400-500-600
500-600-800
600-800-1200
800-1200-1500
1200-1500-2000

Technical data 5: Idyn

Rated primary current (A)
 Ith/ls (KA r.m.s.) Idyn (KA peak)
Double transformaion ratio Single transformaion ratio
10-15-20
 10 2 5
15-20-30
 15 3 7.5
20-30-40
 20,25 4 10
30-40-50 30 6.3 15.7
40-50-75 40 9.4 23.6
50-75-100 50 12.6 31.5
75-100-150 75 15.7 39
100-150-200 100 22 55
150-200-300 150 31.5 78.7
200-300-400
 200,250 47 118
300-400-500 300 63 157.5
400-500-600
 400 63 157.5
500-600-800 500 80 200
600-800-1200
 600-1200 80 200
800-1200-1500
 1500-2000 140 200
1200-1500-2000

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