20KV Medium Voltage Outdoor Voltage Transformer Epoxy Resin Casting
Brand Name:GFUVE
Certification:CE, ISO9001
Model Number:JDZW-20
Minimum Order Quantity:1PC
Delivery Time:2weeks
Payment Terms:L/C, D/A, D/P, T/T, Western Union, MoneyGram
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Verified Supplier
Location:
Beijing Beijing China
Address:
Oriental HuaRui A, No. 150 Guanzhuang Road, Chaoyang District, Beijing, 100024, China
Supplier`s last login times:
within 37 hours
Product Details
Company Profile
Product Details
Theory
Potential transformer or voltage transformer gets used in
electrical power system for stepping down the system voltage to a
safe value which can be fed to low ratings meters and relays.
Commercially available relays and meters used for protection and
metering, are designed for low voltage. This is a simplest form of
potential transformer definition.
A voltage transformer theory or potential transformer theory is just like a theory of general purpose step down transformer. Primary of this transformer is connected across the phase and ground. Just like the transformer used for stepping down purpose, potential transformer i.e. PT has lower turns winding at its secondary.
The system voltage is applied across the terminals of primary
winding of that transformer, and then proportionate secondary
voltage appears across the secondary terminals of the PT.
Applications
This model of instrument voltage transformer includes two versions:
JDZW-20 and JDZXW-20G. The units are cast in epoxy resin and fully
enclosed. The units are suitable for electric systems of rated
frequency of 50/60Hz and rated voltage of 24kV and below. They are
used in indoor or outdoor service conditions. The products are
designed in accordance with Standards IEC60044-2, IEC61869-3 and
ANSI/IEEE C57.13.
Features
New magnetic material using
protection or measurement windings
Measurement accuracy is 0.2s higher.
Phase shift is stability
Designed life is 30years long
PARAMETERS
| Model | Rated Voltage Ratio(KV) | Accuracy class and Accuracy class combination rated secondary output (VA) | Limited output (VA) | Rated insulation level (KV) | Surface creepage distance (mm) | Once fuse(A) | Wt(KG) |
|---|---|---|---|---|---|---|---|
| JSZW-20 | 20000/100 | 0.2---40 0.5---100 1---250 3---500 | 800 | 24/65/125 | 860 | 0.2 | 56 |
| 20000/220 | |||||||
| 20000/100/100 | 0.2/0.2---20/20 0.2/0.5---20/30 0.5/0.5---50/50 | 400/400 | |||||
| 20000/220/220 | 500/800 | ||||||
| JDZXW-20G | 20000/√3 100/√3 100/√3 | 0.2/6P(3P)---30/100 0.5/6P(3P)---60/100 1/6P(3P)---150/100 3/6P(3P)---250/100 | 600 | ||||
20000/√3 100/√3 100/√3 100/√3 | 0.2/0.2/6P(3P)---15/15/100 0.2/0.5/6P(3P)---15/15/100 0.5/0.5/6P(3P)---40/40/100 | 300/300 |
20KV Medium Voltage Outdoor Voltage Transformer Epoxy Resin Casting
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