Ordering information, Single-phase, hand-cranked ttr, Transformer turns ratio test set – Atec Megger-550005 User Manual
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Calibration Reference Transformer
Calibration reference transformers are available for hand-
crank TTRs. They provide a reference standard for periodic
calibration checks to document proof of calibration.
A Calibration Certificate of turn ratio accuracy traceable
to the NIST is furnished with each calibration reference
transformer, providing accuracies of ±0.05%.
Dimensions
13 L x 9.25 W x 7 H in. (330 L x 235 W x 178 H mm)
Weight
19 lb (8.6 kg)
UK
Archcliffe Road, Dover
CT17 9EN England
T (0) 1 304 502101
F (0) 1 304 207342
UNITED STATES
4271 Bronze Way
Dallas, TX 75237-1019 USA
T 1 800 723 2861
T 1 214 333 3201
F 1 214 331 7399
OTHER TECHNICAL SALES OFFICES
Valley Forge USA, College Station
USA, Sydney AUSTRALIA, Täby
SWEDEN, Ontario CANADA, Trappes
FRANCE, Oberursel GERMANY, Aargau
SWITZERLAND, Kingdom of BAHRAIN,
Mumbai INDIA, Johannesburg SOUTH
AFRICA, and Chonburi THAILAND
ISO STATEMENT
Registered to ISO 9001:1994 Reg no. Q 09250
Registered to ISO 14001 Reg no. EMS 61597
SINGLEPH_TTR_DS_en_V13
www.megger.com
Megger is a registered trademark
ORDERING INFORMATION
OPTIONAL ACCESSORIES
Auxiliary Transformer
An auxiliary transformer extends the ratio range of single-
phase models to 329.99:1. Turns ratio is 100:1 and 200:1,
and is accurate to within ±0.1%.
The auxiliary transformer includes all the necessary cables
for connection to the TTR set and the transformer under
test.
Dimensions
8 H x 13 W x 10 D in. (203 H x 330 W x 254 D mm)
Weight
13 lb (5.9 kg)
Item (Qty)
Cat. No.
Single-phase, Hand-cranked TTR
550005B
Included Accessories
Cable assembly
19494
With C-clamps for X (low-voltage) winding, 10 ft (3 m) [2]
With spring clips for H (high-voltage) winding,
13 ft (4 m) [2]
All cables are permanently connected to the test set.
Instruction manual
AVTM55JD
Optional Accessories
Auxiliary transformer
550030
Calibration reference transformer
550050
Single-phase, Hand-cranked TTR
®
Transformer Turns Ratio Test Set